mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-11 07:25:07 +01:00
b24f4c0b01
More info: Also added Pocket SNES PCB by Niltonn https://forum.arduino.cc/index.php?topic=158974.msg4381465#msg4381465
2014 lines
58 KiB
C++
2014 lines
58 KiB
C++
//******************************************
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// SEGA MEGA DRIVE MODULE
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//******************************************
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// Writes to Sega CD Backup RAM Cart require an extra wire from MRES (B02) to VRES (B27)
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/******************************************
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Variables
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*****************************************/
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unsigned long sramEnd;
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byte eepbit[8];
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int eepSize;
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byte eeptemp;
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word addrhi;
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word addrlo;
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word chksum;
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//***********************************************
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// EEPROM SAVE TYPES
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// 1 = Acclaim Type 1 [24C02]
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// 2 = Acclaim Type 2 [24C02/24C16/24C65]
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// 3 = Capcom/SEGA [24C01]
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// 4 = EA [24C01]
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// 5 = Codemasters [24C08/24C16/24C65]
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//***********************************************
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byte eepType;
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//*********************************************************
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// SERIAL EEPROM LOOKUP TABLE
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// Format = {chksum, eepType | eepSize}
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// chksum is located in ROM at 0x18E (0xC7)
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// eepType and eepSize are combined to conserve memory
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//*********************************************************
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static const word PROGMEM eepid [] = {
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// ACCLAIM TYPE 1
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0x5B9F, 0x101, // NBA Jam (J)
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0x694F, 0x101, // NBA Jam (UE) (Rev 0)
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0xBFA9, 0x101, // NBA Jam (UE) (Rev 1)
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// ACCLAIM TYPE 2
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0x16B2, 0x102, // Blockbuster World Videogame Championship II (U) [NO HEADER SAVE DATA]
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0xCC3F, 0x102, // NBA Jam Tournament Edition (W) (Rev 0) [NO HEADER SAVE DATA]
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0x8AE1, 0x102, // NBA Jam Tournament Edition (W) (Rev 1) [NO HEADER SAVE DATA]
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0xDB97, 0x102, // NBA Jam Tournament Edition 32X (W)
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0x7651, 0x102, // NFL Quarterback Club (W)
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0xDFE4, 0x102, // NFL Quarterback Club 32X (W)
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0x3DE6, 0x802, // NFL Quarterback Club '96 (UE)
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0xCB78, 0x2002, // Frank Thomas Big Hurt Baseball (UE)
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0x6DD9, 0x2002, // College Slam (U)
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// CAPCOM
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0xAD23, 0x83, // Mega Man: The Wily Wars (E)
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0xEA80, 0x83, // Rockman Megaworld (J)
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// SEGA
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0x760F, 0x83, // Evander "Real Deal" Holyfield Boxing (JU)
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0x95E7, 0x83, // Greatest Heavyweights of the Ring (E)
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0x0000, 0x83, // Greatest Heavyweights of the Ring (J) [BLANK CHECKSUM 0000]
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0x7270, 0x83, // Greatest Heavyweights of the Ring (U)
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0xBACC, 0x83, // Honoo no Toukyuuji Dodge Danpei (J)
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0xB939, 0x83, // MLBPA Sports Talk Baseball (U) [BAD HEADER SAVE DATA]
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0x487C, 0x83, // Ninja Burai Densetsu (J)
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0x740D, 0x83, // Wonder Boy in Monster World (B)
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0x0278, 0x83, // Wonder Boy in Monster World (J)
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0x9D79, 0x83, // Wonder Boy in Monster World (UE)
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// EA
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0x8512, 0x84, // Bill Walsh College Football (UE) [BAD HEADER SAVE DATA]
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0xA107, 0x84, // John Madden Football '93 (UE) [NO HEADER SAVE DATA]
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0x5807, 0x84, // John Madden Football '93 Championship Edition (U) [NO HEADER SAVE DATA]
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0x2799, 0x84, // NHLPA Hockey '93 (UE) (Rev 0) [NO HEADER SAVE DATA]
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0xFA57, 0x84, // NHLPA Hockey '93 (UE) (Rev 1) [NO HEADER SAVE DATA]
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0x8B9F, 0x84, // Rings of Power (UE) [NO HEADER SAVE DATA]
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// CODEMASTERS
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0x7E65, 0x405, // Brian Lara Cricket (E) [NO HEADER SAVE DATA]
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0x9A5C, 0x2005, // Brian Lara Cricket 96 (E) (Rev 1.0) [NO HEADER SAVE DATA]
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0xC4EE, 0x2005, // Brian Lara Cricket 96 (E) (Rev 1.1) [NO HEADER SAVE DATA]
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0x7E50, 0x805, // Micro Machines 2 (E) (J-Cart) [NO HEADER SAVE DATA]
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0x165E, 0x805, // Micro Machines '96 (E) (J-Cart) (Rev 1.0/1.1) [NO HEADER SAVE DATA]
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0x168B, 0x405, // Micro Machines Military (E) (J-Cart) [NO HEADER SAVE DATA]
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0x12C1, 0x2005, // Shane Warne Cricket (E) [NO HEADER SAVE DATA]
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};
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byte eepcount = (sizeof(eepid) / sizeof(eepid[0])) / 2;
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int index;
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word eepdata;
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// CD BACKUP RAM
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unsigned long bramSize = 0;
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// REALTEC MAPPER
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boolean realtec = 0;
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/******************************************
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Menu
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*****************************************/
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// MD menu items
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static const char MDMenuItem1[] PROGMEM = "Game Cartridge";
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static const char MDMenuItem2[] PROGMEM = "SegaCD RamCart";
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static const char MDMenuItem3[] PROGMEM = "Flash Repro";
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static const char MDMenuItem4[] PROGMEM = "Reset";
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static const char* const menuOptionsMD[] PROGMEM = {MDMenuItem1, MDMenuItem2, MDMenuItem3, MDMenuItem4};
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// Cart menu items
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static const char MDCartMenuItem1[] PROGMEM = "Read Rom";
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static const char MDCartMenuItem2[] PROGMEM = "Read Sram";
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static const char MDCartMenuItem3[] PROGMEM = "Write Sram";
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static const char MDCartMenuItem4[] PROGMEM = "Read EEPROM";
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static const char MDCartMenuItem5[] PROGMEM = "Write EEPROM";
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static const char MDCartMenuItem6[] PROGMEM = "Cycle cart";
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static const char MDCartMenuItem7[] PROGMEM = "Reset";
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static const char* const menuOptionsMDCart[] PROGMEM = {MDCartMenuItem1, MDCartMenuItem2, MDCartMenuItem3, MDCartMenuItem4, MDCartMenuItem5, MDCartMenuItem6, MDCartMenuItem7};
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// Sega CD Ram Backup Cartridge menu items
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static const char SCDMenuItem1[] PROGMEM = "Read Backup RAM";
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static const char SCDMenuItem2[] PROGMEM = "Write Backup RAM";
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static const char SCDMenuItem3[] PROGMEM = "Reset";
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static const char* const menuOptionsSCD[] PROGMEM = {SCDMenuItem1, SCDMenuItem2, SCDMenuItem3};
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// Sega start menu
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void mdMenu() {
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// create menu with title and 4 options to choose from
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unsigned char mdDev;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsMD, 4);
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mdDev = question_box(F("Select MD device"), menuOptions, 4, 0);
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// wait for user choice to come back from the question box menu
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switch (mdDev)
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{
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case 0:
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display_Clear();
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display_Update();
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setup_MD();
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mode = mode_MD_Cart;
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break;
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case 1:
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display_Clear();
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display_Update();
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setup_MD();
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mode = mode_SEGA_CD;
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break;
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case 2:
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display_Clear();
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display_Update();
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setup_MD();
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mode = mode_MD_Cart;
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// Change working dir to root
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filePath[0] = '\0';
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sd.chdir("/");
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fileBrowser(F("Select file"));
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display_Clear();
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// Setting CS(PH3) LOW
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PORTH &= ~(1 << 3);
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// ID flash
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resetFlash_MD();
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idFlash_MD();
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resetFlash_MD();
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print_Msg(F("Flash ID: "));
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println_Msg(flashid);
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if (strcmp(flashid, "C2F1") == 0) {
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println_Msg(F("MX29F1610 detected"));
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flashSize = 2097152;
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}
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else {
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print_Error(F("Error: Unknown flashrom"), true);
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}
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display_Update();
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eraseFlash_MD();
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resetFlash_MD();
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blankcheck_MD();
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write29F1610_MD();
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resetFlash_MD();
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delay(1000);
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resetFlash_MD();
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delay(1000);
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verifyFlash_MD();
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// Set CS(PH3) HIGH
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PORTH |= (1 << 3);
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println_Msg(F(""));
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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break;
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case 3:
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resetArduino();
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break;
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}
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}
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void mdCartMenu() {
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// create menu with title and 6 options to choose from
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unsigned char mainMenu;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsMDCart, 7);
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mainMenu = question_box(F("MEGA DRIVE Reader"), menuOptions, 7, 0);
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// wait for user choice to come back from the question box menu
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switch (mainMenu)
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{
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case 0:
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display_Clear();
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// common ROM read fail state: no cart inserted - tends to report impossibly large cartSize
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// largest known game so far is supposedly "Paprium" at 10MB, so cap sanity check at 16MB
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if (cartSize != 0 && cartSize <= 16777216) {
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// Change working dir to root
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sd.chdir("/");
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if (realtec)
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readRealtec_MD();
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else
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readROM_MD();
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//compare_checksum_MD();
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}
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else {
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print_Error(F("Cart has no ROM"), false);
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}
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break;
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case 1:
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display_Clear();
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// Does cartridge have SRAM
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if ((saveType == 1) || (saveType == 2) || (saveType == 3)) {
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// Change working dir to root
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sd.chdir("/");
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println_Msg(F("Reading Sram..."));
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display_Update();
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enableSram_MD(1);
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readSram_MD();
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enableSram_MD(0);
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}
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else {
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print_Error(F("Cart has no Sram"), false);
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}
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break;
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case 2:
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display_Clear();
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// Does cartridge have SRAM
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if ((saveType == 1) || (saveType == 2) || (saveType == 3)) {
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// Change working dir to root
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sd.chdir("/");
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// Launch file browser
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fileBrowser(F("Select srm file"));
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display_Clear();
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enableSram_MD(1);
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writeSram_MD();
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writeErrors = verifySram_MD();
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enableSram_MD(0);
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if (writeErrors == 0) {
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println_Msg(F("Sram verified OK"));
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display_Update();
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}
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else {
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print_Msg(F("Error: "));
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print_Msg(writeErrors);
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println_Msg(F(" bytes "));
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print_Error(F("did not verify."), false);
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}
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}
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else {
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print_Error(F("Cart has no Sram"), false);
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}
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break;
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case 3:
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display_Clear();
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if (saveType == 4)
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readEEP_MD();
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else {
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print_Error(F("Cart has no EEPROM"), false);
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}
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break;
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case 4:
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display_Clear();
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if (saveType == 4) {
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// Launch file browser
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fileBrowser(F("Select eep file"));
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display_Clear();
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writeEEP_MD();
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}
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else {
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print_Error(F("Cart has no EEPROM"), false);
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}
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break;
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case 5:
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// For multi-game carts
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// Set reset pin to output (PH0)
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DDRH |= (1 << 0);
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// Switch RST(PH0) to LOW
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PORTH &= ~(1 << 0);
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display_Clear();
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print_Msg(F("Resetting..."));
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display_Update();
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delay(3000); // wait 3 secs to switch to next game
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resetArduino();
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break;
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case 6:
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// Reset
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resetArduino();
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break;
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}
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println_Msg(F(""));
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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}
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void segaCDMenu() {
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// create menu with title and 3 options to choose from
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unsigned char scdMenu;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsSCD, 3);
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scdMenu = question_box(F("SEGA CD RAM"), menuOptions, 3, 0);
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// wait for user choice to come back from the question box menu
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switch (scdMenu)
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{
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case 0:
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display_Clear();
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if (bramSize > 0)
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readBram_MD();
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else {
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print_Error(F("Not CD Backup RAM Cart"), false);
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}
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break;
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case 1:
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display_Clear();
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if (bramSize > 0) {
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// Launch file browser
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fileBrowser(F("Select brm file"));
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display_Clear();
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writeBram_MD();
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}
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else {
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print_Error(F("Not CD Backup RAM Cart"), false);
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}
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break;
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case 2:
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// Reset
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asm volatile (" jmp 0");
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break;
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}
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println_Msg(F(""));
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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}
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/******************************************
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Setup
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*****************************************/
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void setup_MD() {
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// Set Address Pins to Output
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//A0-A7
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DDRF = 0xFF;
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//A8-A15
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DDRK = 0xFF;
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//A16-A23
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DDRL = 0xFF;
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// Set Control Pins to Output RST(PH0) CLK(PH1) CS(PH3) WRH(PH4) WRL(PH5) OE(PH6)
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DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Set TIME(PJ0) to Output
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DDRJ |= (1 << 0);
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// Set Data Pins (D0-D15) to Input
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DDRC = 0x00;
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DDRA = 0x00;
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// Setting RST(PH0) CLK(PH1) CS(PH3) WRH(PH4) WRL(PH5) OE(PH6) HIGH
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PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Setting TIME(PJ0) HIGH
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PORTJ |= (1 << 0);
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delay(200);
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// Print all the info
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getCartInfo_MD();
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}
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/******************************************
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I/O Functions
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*****************************************/
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/******************************************
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Low level functions
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*****************************************/
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void writeWord_MD(unsigned long myAddress, word myData) {
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTL = (myAddress >> 16) & 0xFF;
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PORTC = myData;
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PORTA = (myData >> 8) & 0xFF;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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// Wait till output is stable
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__asm__("nop\n\t""nop\n\t");
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// Switch WR(PH5) to LOW
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PORTH &= ~(1 << 5);
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// Setting CS(PH3) LOW
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PORTH &= ~(1 << 3);
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// Leave WR low for at least 200ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Setting CS(PH3) HIGH
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PORTH |= (1 << 3);
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// Switch WR(PH5) to HIGH
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PORTH |= (1 << 5);
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// Leave WR high for at least 50ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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}
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word readWord_MD(unsigned long myAddress) {
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTL = (myAddress >> 16) & 0xFF;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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NOP;
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// Setting CS(PH3) LOW
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PORTH &= ~(1 << 3);
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// Setting OE(PH6) LOW
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PORTH &= ~(1 << 6);
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// most MD ROMs are 200ns, comparable to SNES > use similar access delay of 6 x 62.5 = 375ns
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NOP; NOP; NOP; NOP; NOP; NOP;
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// Read
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word tempWord = ( ( PINA & 0xFF ) << 8 ) | ( PINC & 0xFF );
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// Setting CS(PH3) HIGH
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PORTH |= (1 << 3);
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// Setting OE(PH6) HIGH
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PORTH |= (1 << 6);
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// these 6x nop delays have been here before, unknown what they mean
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NOP; NOP; NOP; NOP; NOP; NOP;
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return tempWord;
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}
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void writeFlash_MD(unsigned long myAddress, word myData) {
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTL = (myAddress >> 16) & 0xFF;
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PORTC = myData;
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PORTA = (myData >> 8) & 0xFF;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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// Wait till output is stable
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__asm__("nop\n\t");
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// Switch WE(PH5) to LOW
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PORTH &= ~(1 << 5);
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// Leave WE low for at least 60ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Switch WE(PH5)to HIGH
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PORTH |= (1 << 5);
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// Leave WE high for at least 50ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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}
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word readFlash_MD(unsigned long myAddress) {
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTL = (myAddress >> 16) & 0xFF;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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__asm__("nop\n\t");
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// Setting OE(PH6) LOW
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PORTH &= ~(1 << 6);
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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|
// Read
|
|
word tempWord = ( ( PINA & 0xFF ) << 8 ) | ( PINC & 0xFF );
|
|
|
|
__asm__("nop\n\t");
|
|
|
|
// Setting OE(PH6) HIGH
|
|
PORTH |= (1 << 6);
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
return tempWord;
|
|
}
|
|
|
|
// Switch data pins to write
|
|
void dataOut_MD() {
|
|
DDRC = 0xFF;
|
|
DDRA = 0xFF;
|
|
}
|
|
|
|
// Switch data pins to read
|
|
void dataIn_MD() {
|
|
DDRC = 0x00;
|
|
DDRA = 0x00;
|
|
}
|
|
|
|
/******************************************
|
|
MEGA DRIVE functions
|
|
*****************************************/
|
|
void getCartInfo_MD() {
|
|
// Set control
|
|
dataIn_MD();
|
|
|
|
cartSize = ((long(readWord_MD(0xD2)) << 16) | readWord_MD(0xD3)) + 1;
|
|
|
|
// Cart Checksum
|
|
chksum = readWord_MD(0xC7);
|
|
|
|
// Super Street Fighter 2 Check
|
|
if (cartSize == 0x400000) {
|
|
switch (chksum) {
|
|
case 0xCE25: // Super Street Fighter 2 (J) 40Mbit
|
|
case 0xE41D: // Super Street Fighter 2 (E) 40Mbit
|
|
case 0xE017: // Super Street Fighter 2 (U) 40Mbit
|
|
cartSize = 0x500000;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Serial EEPROM Check
|
|
for (int i = 0; i < eepcount; i++) {
|
|
index = i * 2;
|
|
word eepcheck = pgm_read_word(eepid + index);
|
|
if (eepcheck == chksum) {
|
|
eepdata = pgm_read_word(eepid + index + 1);
|
|
eepType = eepdata & 0x7;
|
|
eepSize = eepdata & 0xFFF8;
|
|
saveType = 4; // SERIAL EEPROM
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Greatest Heavyweights of the Ring (J) has blank chksum 0x0000
|
|
// Other non-save carts might have the same blank chksum
|
|
// Check header for Serial EEPROM Data
|
|
if (chksum == 0x0000) {
|
|
if (readWord_MD(0xD9) != 0xE840) { // NOT SERIAL EEPROM
|
|
eepType = 0;
|
|
eepSize = 0;
|
|
saveType = 0;
|
|
}
|
|
}
|
|
|
|
// Codemasters EEPROM Check
|
|
// Codemasters used the same incorrect header across multiple carts
|
|
// Carts with checksum 0x165E or 0x168B could be EEPROM or non-EEPROM
|
|
// Check the first DWORD in ROM (0x444E4C44) to identify the EEPROM carts
|
|
if ((chksum == 0x165E) || (chksum == 0x168B)) {
|
|
if (readWord_MD(0x00) != 0x444E) { // NOT SERIAL EEPROM
|
|
eepType = 0;
|
|
eepSize = 0;
|
|
saveType = 0;
|
|
}
|
|
}
|
|
|
|
// CD Backup RAM Cart Check
|
|
// 4 = 128KB (2045 Blocks) Sega CD Backup RAM Cart
|
|
// 6 = 512KB (8189 Blocks) Ultra CD Backup RAM Cart (Aftermarket)
|
|
word bramCheck = readWord_MD(0x00);
|
|
if (((bramCheck == 0x0004) && (chksum == 0x0004)) || ((bramCheck == 0x0006) && (chksum == 0x0006)))
|
|
bramSize = pow(2, bramCheck) * 0x2000;
|
|
if (saveType != 4) { // NOT SERIAL EEPROM
|
|
// Check if cart has sram
|
|
saveType = 0;
|
|
sramSize = 0;
|
|
|
|
// FIXED CODE FOR SRAM/FRAM/PARALLEL EEPROM
|
|
// 0x5241F820 SRAM (ODD BYTES/EVEN BYTES)
|
|
// 0x5241F840 PARALLEL EEPROM - READ AS SRAM
|
|
// 0x5241E020 SRAM (BOTH BYTES)
|
|
if (readWord_MD(0xD8) == 0x5241) {
|
|
word sramType = readWord_MD(0xD9);
|
|
if ((sramType == 0xF820) || (sramType == 0xF840)) { // SRAM/FRAM ODD/EVEN BYTES
|
|
// Get sram start and end
|
|
sramBase = ((long(readWord_MD(0xDA)) << 16) | readWord_MD(0xDB));
|
|
sramEnd = ((long(readWord_MD(0xDC)) << 16) | readWord_MD(0xDD));
|
|
|
|
// Check alignment of sram
|
|
if ((sramBase == 0x200001) || (sramBase == 0x300001)) { // ADDED 0x300001 FOR HARDBALL '95 (U)
|
|
// low byte
|
|
saveType = 1; // ODD
|
|
sramSize = (sramEnd - sramBase + 2) / 2;
|
|
// Right shift sram base address so [A21] is set to high 0x200000 = 0b001[0]00000000000000000000
|
|
sramBase = sramBase >> 1;
|
|
}
|
|
else if (sramBase == 0x200000) {
|
|
// high byte
|
|
saveType = 2; // EVEN
|
|
sramSize = (sramEnd - sramBase + 1) / 2;
|
|
// Right shift sram base address so [A21] is set to high 0x200000 = 0b001[0]00000000000000000000
|
|
sramBase = sramBase / 2;
|
|
}
|
|
else
|
|
print_Error(F("Unknown Sram Base"), true);
|
|
}
|
|
else if (sramType == 0xE020) { // SRAM BOTH BYTES
|
|
// Get sram start and end
|
|
sramBase = ((long(readWord_MD(0xDA)) << 16) | readWord_MD(0xDB));
|
|
sramEnd = ((long(readWord_MD(0xDC)) << 16) | readWord_MD(0xDD));
|
|
|
|
if (sramBase == 0x200001) {
|
|
saveType = 3; // BOTH
|
|
sramSize = sramEnd - sramBase + 2;
|
|
sramBase = sramBase >> 1;
|
|
}
|
|
else if (sramBase == 0x200000) {
|
|
saveType = 3; // BOTH
|
|
sramSize = sramEnd - sramBase + 1;
|
|
sramBase = sramBase >> 1;
|
|
}
|
|
else
|
|
print_Error(F("Unknown Sram Base"), true);
|
|
}
|
|
}
|
|
else {
|
|
// SRAM CARTS WITH BAD/MISSING HEADER SAVE DATA
|
|
switch (chksum) {
|
|
case 0xC2DB: // Winter Challenge (UE)
|
|
saveType = 1; // ODD
|
|
sramBase = 0x200001;
|
|
sramEnd = 0x200FFF;
|
|
break;
|
|
|
|
case 0xD7B6: // Buck Rogers: Countdown to Doomsday (UE)
|
|
case 0xFE3E: // NBA Live '98 (U)
|
|
case 0xFDAD: // NFL '94 starring Joe Montana (U)
|
|
case 0x632E: // PGA Tour Golf (UE) (Rev 1)
|
|
case 0xD2BA: // PGA Tour Golf (UE) (Rev 2)
|
|
case 0x44FE: // Super Hydlide (J)
|
|
saveType = 1; // ODD
|
|
sramBase = 0x200001;
|
|
sramEnd = 0x203FFF;
|
|
break;
|
|
|
|
case 0xDB5E: // Might & Magic: Gates to Another World (UE) (Rev 1)
|
|
case 0x3428: // Starflight (UE) (Rev 0)
|
|
case 0x43EE: // Starflight (UE) (Rev 1)
|
|
saveType = 3; // BOTH
|
|
sramBase = 0x200001;
|
|
sramEnd = 0x207FFF;
|
|
break;
|
|
|
|
case 0xBF72: // College Football USA '96 (U)
|
|
case 0x72EF: // FIFA Soccer '97 (UE)
|
|
case 0xD723: // Hardball III (U)
|
|
case 0x06C1: // Madden NFL '98 (U)
|
|
case 0xDB17: // NHL '96 (UE)
|
|
case 0x5B3A: // NHL '98 (U)
|
|
case 0x2CF2: // NFL Sports Talk Football '93 starring Joe Montana (UE)
|
|
case 0xE9B1: // Summer Challenge (U)
|
|
case 0xEEE8: // Test Drive II: The Duel (U)
|
|
saveType = 1; // ODD
|
|
sramBase = 0x200001;
|
|
sramEnd = 0x20FFFF;
|
|
break;
|
|
}
|
|
if (saveType == 1) {
|
|
sramSize = (sramEnd - sramBase + 2) / 2;
|
|
sramBase = sramBase >> 1;
|
|
}
|
|
else if (saveType == 3) {
|
|
sramSize = sramEnd - sramBase + 2;
|
|
sramBase = sramBase >> 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Get name
|
|
for (byte c = 0; c < 48; c += 2) {
|
|
// split word
|
|
word myWord = readWord_MD((0x150 + c) / 2);
|
|
byte loByte = myWord & 0xFF;
|
|
byte hiByte = myWord >> 8;
|
|
|
|
// write to buffer
|
|
sdBuffer[c] = hiByte;
|
|
sdBuffer[c + 1] = loByte;
|
|
}
|
|
byte myLength = 0;
|
|
for (unsigned int i = 0; i < 48; i++) {
|
|
if (((char(sdBuffer[i]) >= 48 && char(sdBuffer[i]) <= 57) || (char(sdBuffer[i]) >= 65 && char(sdBuffer[i]) <= 122)) && myLength < 15) {
|
|
romName[myLength] = char(sdBuffer[i]);
|
|
myLength++;
|
|
}
|
|
}
|
|
|
|
// Realtec Mapper Check
|
|
word realtecCheck1 = readWord_MD(0x3F080); // 0x7E100 "SEGA" (BootROM starts at 0x7E000)
|
|
word realtecCheck2 = readWord_MD(0x3F081);
|
|
if ((realtecCheck1 == 0x5345) && (realtecCheck2 == 0x4741)) {
|
|
realtec = 1;
|
|
strcpy(romName, "Realtec");
|
|
cartSize = 0x80000;
|
|
}
|
|
|
|
display_Clear();
|
|
println_Msg(F("Cart Info"));
|
|
println_Msg(F(" "));
|
|
print_Msg(F("Name: "));
|
|
println_Msg(romName);
|
|
print_Msg(F("Size: "));
|
|
print_Msg(cartSize * 8 / 1024 / 1024 );
|
|
println_Msg(F(" MBit"));
|
|
print_Msg(F("ChkS: "));
|
|
print_Msg((chksum >> 8), HEX);
|
|
print_Msg((chksum & 0x00ff), HEX);
|
|
println_Msg(F(""));
|
|
if (saveType == 4) {
|
|
print_Msg(F("Serial EEPROM: "));
|
|
print_Msg(eepSize * 8 / 1024);
|
|
println_Msg(F(" KBit"));
|
|
}
|
|
else {
|
|
print_Msg(F("Sram: "));
|
|
if (sramSize > 0) {
|
|
print_Msg(sramSize * 8 / 1024);
|
|
println_Msg(F(" KBit"));
|
|
}
|
|
else
|
|
println_Msg(F("None"));
|
|
}
|
|
println_Msg(F(" "));
|
|
|
|
// Wait for user input
|
|
#ifdef enable_OLED
|
|
println_Msg(F("Press Button..."));
|
|
display_Update();
|
|
wait();
|
|
#endif
|
|
}
|
|
|
|
void writeSSF2Map(unsigned long myAddress, word myData) {
|
|
dataOut_MD();
|
|
|
|
// Set TIME(PJ0) HIGH
|
|
PORTJ |= (1 << 0);
|
|
|
|
// 0x50987E * 2 = 0xA130FD Bank 6 (0x300000-0x37FFFF)
|
|
// 0x50987F * 2 = 0xA130FF Bank 7 (0x380000-0x3FFFFF)
|
|
PORTL = (myAddress >> 16) & 0xFF;
|
|
PORTK = (myAddress >> 8) & 0xFF;
|
|
PORTF = myAddress & 0xFF;
|
|
PORTC = myData;
|
|
PORTA = (myData >> 8) & 0xFF;
|
|
|
|
// Arduino running at 16Mhz -> one nop = 62.5ns
|
|
// Wait till output is stable
|
|
__asm__("nop\n\t""nop\n\t");
|
|
|
|
// Strobe TIME(PJ0) LOW to latch the data
|
|
PORTJ &= ~(1 << 0);
|
|
// Switch WR(PH5) to LOW
|
|
PORTH &= ~(1 << 5);
|
|
|
|
// Leave WR low for at least 200ns
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
// Switch WR(PH5) to HIGH
|
|
PORTH |= (1 << 5);
|
|
// Set TIME(PJ0) HIGH
|
|
PORTJ |= (1 << 0);
|
|
|
|
dataIn_MD();
|
|
}
|
|
|
|
// Read rom and save to the SD card
|
|
void readROM_MD() {
|
|
// Checksum
|
|
uint16_t calcCKS = 0;
|
|
|
|
// Set control
|
|
dataIn_MD();
|
|
|
|
// Get name, add extension and convert to char array for sd lib
|
|
strcpy(fileName, romName);
|
|
strcat(fileName, ".BIN");
|
|
|
|
// create a new folder
|
|
EEPROM_readAnything(0, foldern);
|
|
sprintf(folder, "MD/ROM/%s/%d", romName, foldern);
|
|
sd.mkdir(folder, true);
|
|
sd.chdir(folder);
|
|
|
|
display_Clear();
|
|
print_Msg(F("Saving to "));
|
|
print_Msg(folder);
|
|
println_Msg(F("/..."));
|
|
display_Update();
|
|
|
|
// write new folder number back to eeprom
|
|
foldern = foldern + 1;
|
|
EEPROM_writeAnything(0, foldern);
|
|
|
|
// Open file on sd card
|
|
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
|
|
byte buffer[1024] = { 0 };
|
|
|
|
// get current time
|
|
unsigned long startTime = millis();
|
|
|
|
// Prepare SSF2 Banks
|
|
if (cartSize > 0x400000) {
|
|
writeSSF2Map(0x50987E, 6); // 0xA130FD
|
|
writeSSF2Map(0x50987F, 7); // 0xA130FF
|
|
}
|
|
byte offsetSSF2Bank = 0;
|
|
word d = 0;
|
|
|
|
//Initialize progress bar
|
|
uint32_t processedProgressBar = 0;
|
|
uint32_t totalProgressBar = (uint32_t)(cartSize);
|
|
draw_progressbar(0, totalProgressBar);
|
|
|
|
for (unsigned long currBuffer = 0; currBuffer < cartSize / 2; currBuffer += 512) {
|
|
// Blink led
|
|
if (currBuffer % 16384 == 0)
|
|
PORTB ^= (1 << 4);
|
|
|
|
if (currBuffer == 0x200000) {
|
|
writeSSF2Map(0x50987E, 8); // 0xA130FD
|
|
offsetSSF2Bank = 1;
|
|
}
|
|
else if (currBuffer == 0x240000) {
|
|
writeSSF2Map(0x50987F, 9); // 0xA130FF
|
|
offsetSSF2Bank = 1;
|
|
}
|
|
|
|
d = 0;
|
|
|
|
for (int currWord = 0; currWord < 512; currWord++) {
|
|
unsigned long myAddress = currBuffer + currWord - (offsetSSF2Bank * 0x80000);
|
|
PORTF = myAddress & 0xFF;
|
|
PORTK = (myAddress >> 8) & 0xFF;
|
|
PORTL = (myAddress >> 16) & 0xFF;
|
|
|
|
// Arduino running at 16Mhz -> one nop = 62.5ns
|
|
NOP;
|
|
// Setting CS(PH3) LOW
|
|
PORTH &= ~(1 << 3);
|
|
// Setting OE(PH6) LOW
|
|
PORTH &= ~(1 << 6);
|
|
// most MD ROMs are 200ns, comparable to SNES > use similar access delay of 6 x 62.5 = 375ns
|
|
NOP; NOP; NOP; NOP; NOP; NOP;
|
|
|
|
// Read
|
|
buffer[d] = PINA;
|
|
buffer[d + 1] = PINC;
|
|
|
|
// Setting CS(PH3) HIGH
|
|
PORTH |= (1 << 3);
|
|
// Setting OE(PH6) HIGH
|
|
PORTH |= (1 << 6);
|
|
|
|
// Skip first 256 words
|
|
if (((currBuffer == 0) && (currWord >= 256)) || (currBuffer > 0)) {
|
|
calcCKS += ((buffer[d] << 8) | buffer[d + 1]);
|
|
}
|
|
d += 2;
|
|
}
|
|
myFile.write(buffer, 1024);
|
|
|
|
// update progress bar
|
|
processedProgressBar += 1024;
|
|
draw_progressbar(processedProgressBar, totalProgressBar);
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
|
|
// Reset SSF2 Banks
|
|
if (cartSize > 0x400000) {
|
|
writeSSF2Map(0x50987E, 6); // 0xA130FD
|
|
writeSSF2Map(0x50987F, 7); // 0xA130FF
|
|
}
|
|
|
|
// print elapsed time
|
|
print_Msg(F("Time elapsed: "));
|
|
print_Msg((millis() - startTime) / 1000);
|
|
println_Msg(F("s"));
|
|
display_Update();
|
|
|
|
// print Checksum
|
|
if (chksum == calcCKS) {
|
|
println_Msg(F("Checksum OK"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Msg(F("Checksum Error: "));
|
|
char calcsumStr[5];
|
|
sprintf(calcsumStr, "%04X", calcCKS);
|
|
println_Msg(calcsumStr);
|
|
print_Error(F(""), false);
|
|
display_Update();
|
|
}
|
|
}
|
|
|
|
/******************************************
|
|
SRAM functions
|
|
*****************************************/
|
|
// Sonic 3 sram enable
|
|
void enableSram_MD(boolean enableSram) {
|
|
dataOut_MD();
|
|
|
|
// Set D0 to either 1(enable SRAM) or 0(enable ROM)
|
|
PORTC = enableSram;
|
|
|
|
// Strobe TIME(PJ0) LOW to latch the data
|
|
PORTJ &= ~(1 << 0);
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
// Set TIME(PJ0) HIGH
|
|
PORTJ |= (1 << 0);
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
dataIn_MD();
|
|
}
|
|
|
|
// Write sram to cartridge
|
|
void writeSram_MD() {
|
|
dataOut_MD();
|
|
|
|
// Create filepath
|
|
sprintf(filePath, "%s/%s", filePath, fileName);
|
|
println_Msg(F("Writing..."));
|
|
println_Msg(filePath);
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
// Write to the lower byte
|
|
if (saveType == 1) {
|
|
for (unsigned long currByte = sramBase; currByte < sramBase + sramSize; currByte++) {
|
|
writeWord_MD(currByte, (myFile.read() & 0xFF));
|
|
}
|
|
}
|
|
// Write to the upper byte
|
|
else if (saveType == 2) {
|
|
for (unsigned long currByte = sramBase; currByte < sramBase + sramSize; currByte++) {
|
|
writeWord_MD(currByte, ((myFile.read() << 8 ) & 0xFF));
|
|
}
|
|
}
|
|
else
|
|
print_Error(F("Unknown save type"), false);
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
println_Msg(F("Done"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
dataIn_MD();
|
|
}
|
|
|
|
// Read sram and save to the SD card
|
|
void readSram_MD() {
|
|
dataIn_MD();
|
|
|
|
// Get name, add extension and convert to char array for sd lib
|
|
strcpy(fileName, romName);
|
|
strcat(fileName, ".srm");
|
|
|
|
// create a new folder for the save file
|
|
EEPROM_readAnything(0, foldern);
|
|
sprintf(folder, "MD/SAVE/%s/%d", romName, foldern);
|
|
sd.mkdir(folder, true);
|
|
sd.chdir(folder);
|
|
|
|
// write new folder number back to eeprom
|
|
foldern = foldern + 1;
|
|
EEPROM_writeAnything(0, foldern);
|
|
|
|
// Open file on sd card
|
|
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
|
|
for (unsigned long currBuffer = sramBase; currBuffer < sramBase + sramSize; currBuffer += 256) {
|
|
for (int currWord = 0; currWord < 256; currWord++) {
|
|
word myWord = readWord_MD(currBuffer + currWord);
|
|
|
|
if (saveType == 2) {
|
|
// Only use the upper byte
|
|
sdBuffer[currWord] = (( myWord >> 8 ) & 0xFF);
|
|
}
|
|
else if (saveType == 1) {
|
|
// Only use the lower byte
|
|
sdBuffer[currWord] = (myWord & 0xFF);
|
|
}
|
|
else { // saveType == 3 (BOTH)
|
|
sdBuffer[currWord * 2] = (( myWord >> 8 ) & 0xFF);
|
|
sdBuffer[(currWord * 2) + 1] = (myWord & 0xFF);
|
|
}
|
|
}
|
|
if (saveType == 3)
|
|
myFile.write(sdBuffer, 512);
|
|
else
|
|
myFile.write(sdBuffer, 256);
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
print_Msg(F("Saved to "));
|
|
print_Msg(folder);
|
|
println_Msg(F("/"));
|
|
display_Update();
|
|
}
|
|
|
|
unsigned long verifySram_MD() {
|
|
dataIn_MD();
|
|
writeErrors = 0;
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
for (unsigned long currBuffer = sramBase; currBuffer < sramBase + sramSize; currBuffer += 512) {
|
|
for (int currWord = 0; currWord < 512; currWord++) {
|
|
word myWord = readWord_MD(currBuffer + currWord);
|
|
|
|
if (saveType == 2) {
|
|
// Only use the upper byte
|
|
sdBuffer[currWord] = (( myWord >> 8 ) & 0xFF);
|
|
}
|
|
else if (saveType == 1) {
|
|
// Only use the lower byte
|
|
sdBuffer[currWord] = (myWord & 0xFF);
|
|
}
|
|
}
|
|
// Check sdBuffer content against file on sd card
|
|
for (int i = 0; i < 512; i++) {
|
|
if (myFile.read() != sdBuffer[i]) {
|
|
writeErrors++;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
}
|
|
else {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
// Return 0 if verified ok, or number of errors
|
|
return writeErrors;
|
|
}
|
|
|
|
//******************************************
|
|
// Flashrom Functions
|
|
//******************************************
|
|
void resetFlash_MD() {
|
|
// Set data pins to output
|
|
dataOut_MD();
|
|
|
|
// Reset command sequence
|
|
writeFlash_MD(0x5555, 0xaa);
|
|
writeFlash_MD(0x2aaa, 0x55);
|
|
writeFlash_MD(0x5555, 0xf0);
|
|
|
|
// Set data pins to input again
|
|
dataIn_MD();
|
|
}
|
|
|
|
void write29F1610_MD() {
|
|
// Create filepath
|
|
sprintf(filePath, "%s/%s", filePath, fileName);
|
|
print_Msg(F("Flashing file "));
|
|
print_Msg(filePath);
|
|
println_Msg(F("..."));
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
// Get rom size from file
|
|
fileSize = myFile.fileSize();
|
|
if (fileSize > flashSize) {
|
|
print_Error(F("File size exceeds flash size."), true);
|
|
}
|
|
// Set data pins to output
|
|
dataOut_MD();
|
|
|
|
// Fill sdBuffer with 1 page at a time then write it repeat until all bytes are written
|
|
int d = 0;
|
|
for (unsigned long currByte = 0; currByte < fileSize / 2; currByte += 64) {
|
|
myFile.read(sdBuffer, 128);
|
|
|
|
// Blink led
|
|
if (currByte % 4096 == 0) {
|
|
PORTB ^= (1 << 4);
|
|
}
|
|
|
|
// Write command sequence
|
|
writeFlash_MD(0x5555, 0xaa);
|
|
writeFlash_MD(0x2aaa, 0x55);
|
|
writeFlash_MD(0x5555, 0xa0);
|
|
|
|
// Write one full page at a time
|
|
for (byte c = 0; c < 64; c++) {
|
|
word currWord = ( ( sdBuffer[d] & 0xFF ) << 8 ) | ( sdBuffer[d + 1] & 0xFF );
|
|
writeFlash_MD(currByte + c, currWord);
|
|
d += 2;
|
|
}
|
|
d = 0;
|
|
|
|
// Check if write is complete
|
|
delayMicroseconds(100);
|
|
busyCheck_MD();
|
|
}
|
|
|
|
// Set data pins to input again
|
|
dataIn_MD();
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
}
|
|
else {
|
|
println_Msg(F("Can't open file"));
|
|
display_Update();
|
|
}
|
|
}
|
|
|
|
void idFlash_MD() {
|
|
// Set data pins to output
|
|
dataOut_MD();
|
|
|
|
// ID command sequence
|
|
writeFlash_MD(0x5555, 0xaa);
|
|
writeFlash_MD(0x2aaa, 0x55);
|
|
writeFlash_MD(0x5555, 0x90);
|
|
|
|
// Set data pins to input again
|
|
dataIn_MD();
|
|
|
|
// Read the two id bytes into a string
|
|
sprintf(flashid, "%02X%02X", readFlash_MD(0) & 0xFF, readFlash_MD(1) & 0xFF);
|
|
}
|
|
|
|
byte readStatusReg_MD() {
|
|
// Set data pins to output
|
|
dataOut_MD();
|
|
|
|
// Status reg command sequence
|
|
writeFlash_MD(0x5555, 0xaa);
|
|
writeFlash_MD(0x2aaa, 0x55);
|
|
writeFlash_MD(0x5555, 0x70);
|
|
|
|
// Set data pins to input again
|
|
dataIn_MD();
|
|
|
|
// Read the status register
|
|
byte statusReg = readFlash_MD(0);
|
|
return statusReg;
|
|
}
|
|
|
|
void eraseFlash_MD() {
|
|
// Set data pins to output
|
|
dataOut_MD();
|
|
|
|
// Erase command sequence
|
|
writeFlash_MD(0x5555, 0xaa);
|
|
writeFlash_MD(0x2aaa, 0x55);
|
|
writeFlash_MD(0x5555, 0x80);
|
|
writeFlash_MD(0x5555, 0xaa);
|
|
writeFlash_MD(0x2aaa, 0x55);
|
|
writeFlash_MD(0x5555, 0x10);
|
|
|
|
// Set data pins to input again
|
|
dataIn_MD();
|
|
|
|
busyCheck_MD();
|
|
}
|
|
|
|
void blankcheck_MD() {
|
|
blank = 1;
|
|
for (unsigned long currByte = 0; currByte < flashSize / 2; currByte++) {
|
|
if (readFlash_MD(currByte) != 0xFFFF) {
|
|
currByte = flashSize / 2;
|
|
blank = 0;
|
|
}
|
|
if (currByte % 4096 == 0) {
|
|
PORTB ^= (1 << 4);
|
|
}
|
|
}
|
|
if (!blank) {
|
|
print_Error(F("Error: Not blank"), false);
|
|
}
|
|
}
|
|
|
|
void verifyFlash_MD() {
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
// Get rom size from file
|
|
fileSize = myFile.fileSize();
|
|
if (fileSize > flashSize) {
|
|
print_Error(F("File size exceeds flash size."), true);
|
|
}
|
|
|
|
blank = 0;
|
|
word d = 0;
|
|
for (unsigned long currByte = 0; currByte < fileSize / 2; currByte += 256) {
|
|
if (currByte % 4096 == 0) {
|
|
PORTB ^= (1 << 4);
|
|
}
|
|
//fill sdBuffer
|
|
myFile.read(sdBuffer, 512);
|
|
for (int c = 0; c < 256; c++) {
|
|
word currWord = ((sdBuffer[d] << 8) | sdBuffer[d + 1]);
|
|
|
|
if (readFlash_MD(currByte + c) != currWord) {
|
|
blank++;
|
|
}
|
|
d += 2;
|
|
}
|
|
d = 0;
|
|
}
|
|
if (blank == 0) {
|
|
println_Msg(F("Flashrom verified OK"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Msg(F("Error: "));
|
|
print_Msg(blank);
|
|
println_Msg(F(" bytes "));
|
|
print_Error(F("did not verify."), false);
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
}
|
|
else {
|
|
println_Msg(F("Can't open file"));
|
|
display_Update();
|
|
}
|
|
}
|
|
|
|
// Delay between write operations based on status register
|
|
void busyCheck_MD() {
|
|
// Set data pins to input
|
|
dataIn_MD();
|
|
|
|
// Read the status register
|
|
word statusReg = readFlash_MD(0);
|
|
|
|
while ((statusReg | 0xFF7F) != 0xFFFF) {
|
|
statusReg = readFlash_MD(0);
|
|
}
|
|
|
|
// Set data pins to output
|
|
dataOut_MD();
|
|
}
|
|
|
|
//******************************************
|
|
// EEPROM Functions
|
|
//******************************************
|
|
void EepromInit(byte eepmode) { // Acclaim Type 2
|
|
PORTF = 0x00; // ADDR A0-A7
|
|
PORTK = 0x00; // ADDR A8-A15
|
|
PORTL = 0x10; // ADDR A16-A23
|
|
PORTA = 0x00; // DATA D8-D15
|
|
PORTH |= (1 << 0); // /RES HIGH
|
|
|
|
PORTC = eepmode; // EEPROM Switch: 0 = Enable (Read EEPROM), 1 = Disable (Read ROM)
|
|
PORTH &= ~(1 << 3); // CE LOW
|
|
PORTH &= ~(1 << 4) & ~(1 << 5); // /UDSW + /LDSW LOW
|
|
PORTH |= (1 << 6); // OE HIGH
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
PORTH |= (1 << 4) | (1 << 5); // /UDSW + /LDSW HIGH
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
}
|
|
|
|
void writeWord_SDA(unsigned long myAddress, word myData) { /* D0 goes to /SDA when only /LWR is asserted */
|
|
PORTF = myAddress & 0xFF;
|
|
PORTK = (myAddress >> 8) & 0xFF;
|
|
PORTL = (myAddress >> 16) & 0xFF;
|
|
PORTC = myData;
|
|
PORTH &= ~(1 << 3); // CE LOW
|
|
PORTH &= ~(1 << 5); // /LDSW LOW
|
|
PORTH |= (1 << 4); // /UDSW HIGH
|
|
PORTH |= (1 << 6); // OE HIGH
|
|
if (eepSize > 0x100)
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
else
|
|
delayMicroseconds(100);
|
|
PORTH |= (1 << 5); // /LDSW HIGH
|
|
if (eepSize > 0x100)
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
else
|
|
delayMicroseconds(100);
|
|
}
|
|
|
|
void writeWord_SCL(unsigned long myAddress, word myData) { /* D0 goes to /SCL when only /UWR is asserted */
|
|
PORTF = myAddress & 0xFF;
|
|
PORTK = (myAddress >> 8) & 0xFF;
|
|
PORTL = (myAddress >> 16) & 0xFF;
|
|
PORTC = myData;
|
|
PORTH &= ~(1 << 3); // CE LOW
|
|
PORTH &= ~(1 << 4); // /UDSW LOW
|
|
PORTH |= (1 << 5); // /LDSW HIGH
|
|
PORTH |= (1 << 6); // OE HIGH
|
|
if (eepSize > 0x100)
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
else
|
|
delayMicroseconds(100);
|
|
PORTH |= (1 << 4); // /UDSW HIGH
|
|
if (eepSize > 0x100)
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
else
|
|
delayMicroseconds(100);
|
|
}
|
|
|
|
void writeWord_CM(unsigned long myAddress, word myData) { // Codemasters
|
|
PORTF = myAddress & 0xFF;
|
|
PORTK = (myAddress >> 8) & 0xFF;
|
|
PORTL = (myAddress >> 16) & 0xFF;
|
|
PORTC = myData;
|
|
PORTA = (myData >> 8) & 0xFF;
|
|
|
|
// Arduino running at 16Mhz -> one nop = 62.5ns
|
|
// Wait till output is stable
|
|
__asm__("nop\n\t""nop\n\t");
|
|
|
|
// Switch WR(PH4) to LOW
|
|
PORTH &= ~(1 << 4);
|
|
// Setting CS(PH3) LOW
|
|
PORTH &= ~(1 << 3);
|
|
// Pulse CLK(PH1)
|
|
PORTH ^= (1 << 1);
|
|
|
|
// Leave WR low for at least 200ns
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
// Pulse CLK(PH1)
|
|
PORTH ^= (1 << 1);
|
|
// Setting CS(PH3) HIGH
|
|
PORTH |= (1 << 3);
|
|
// Switch WR(PH4) to HIGH
|
|
PORTH |= (1 << 4);
|
|
|
|
// Leave WR high for at least 50ns
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
}
|
|
|
|
// EEPROM COMMANDS
|
|
void EepromStart() {
|
|
if (eepType == 2) { // Acclaim Type 2
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
}
|
|
else if (eepType == 4) { // EA
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
writeWord_MD(0x100000, 0xC0); // sda, scl high
|
|
writeWord_MD(0x100000, 0x40); // sda low, scl high
|
|
writeWord_MD(0x100000, 0x00); // START
|
|
}
|
|
else if (eepType == 5) { // Codemasters
|
|
writeWord_CM(0x180000, 0x00); // sda low, scl low
|
|
writeWord_CM(0x180000, 0x02); // sda low, scl high
|
|
writeWord_CM(0x180000, 0x03); // sda, scl high
|
|
writeWord_CM(0x180000, 0x02); // sda low, scl high
|
|
writeWord_CM(0x180000, 0x00); // START
|
|
}
|
|
else {
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
writeWord_MD(0x100000, 0x03); // sda, scl high
|
|
writeWord_MD(0x100000, 0x02); // sda low, scl high
|
|
writeWord_MD(0x100000, 0x00); // START
|
|
}
|
|
}
|
|
|
|
void EepromSet0() {
|
|
if (eepType == 2) { // Acclaim Type 2
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
}
|
|
else if (eepType == 4) { // EA
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
writeWord_MD(0x100000, 0x40); // sda low, scl high // 0
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
}
|
|
else if (eepType == 5) { // Codemasters
|
|
writeWord_CM(0x180000, 0x00); // sda low, scl low
|
|
writeWord_CM(0x180000, 0x02); // sda low, scl high // 0
|
|
writeWord_CM(0x180000, 0x00); // sda low, scl low
|
|
}
|
|
else {
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
writeWord_MD(0x100000, 0x02); // sda low, scl high // 0
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
}
|
|
}
|
|
|
|
void EepromSet1() {
|
|
if (eepType == 2) { // Acclaim Type 2
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
}
|
|
else if (eepType == 4) { // EA
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
writeWord_MD(0x100000, 0xC0); // sda high, scl high // 1
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
}
|
|
else if (eepType == 5) { // Codemasters
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
writeWord_CM(0x180000, 0x03); // sda high, scl high // 1
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
writeWord_CM(0x180000, 0x00); // sda low, scl low
|
|
}
|
|
else {
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x03); // sda high, scl high // 1
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
}
|
|
}
|
|
|
|
|
|
void EepromDevice() { // 24C02+
|
|
EepromSet1();
|
|
EepromSet0();
|
|
EepromSet1();
|
|
EepromSet0();
|
|
}
|
|
|
|
void EepromSetDeviceAddress(word addrhi) { // 24C02+
|
|
for (int i = 0; i < 3; i++) {
|
|
if ((addrhi >> 2) & 0x1) // Bit is HIGH
|
|
EepromSet1();
|
|
else // Bit is LOW
|
|
EepromSet0();
|
|
addrhi <<= 1; // rotate to the next bit
|
|
}
|
|
}
|
|
|
|
void EepromStatus() { // ACK
|
|
byte eepStatus = 1;
|
|
if (eepType == 1) { // Acclaim Type 1
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x03); // sda high, scl high
|
|
do {
|
|
dataIn_MD();
|
|
eepStatus = ((readWord_MD(0x100000) >> 1) & 0x1);
|
|
dataOut_MD();
|
|
delayMicroseconds(4);
|
|
}
|
|
while (eepStatus == 1);
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
}
|
|
else if (eepType == 2) { // Acclaim Type 2
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
do {
|
|
dataIn_MD();
|
|
eepStatus = (readWord_MD(0x100000) & 0x1);
|
|
dataOut_MD();
|
|
delayMicroseconds(4);
|
|
}
|
|
while (eepStatus == 1);
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
}
|
|
else if (eepType == 3) { // Capcom/Sega
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x03); // sda high, scl high
|
|
do {
|
|
dataIn_MD();
|
|
eepStatus = (readWord_MD(0x100000) & 0x1);
|
|
dataOut_MD();
|
|
delayMicroseconds(4);
|
|
}
|
|
while (eepStatus == 1);
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
}
|
|
else if (eepType == 4) { // EA
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
writeWord_MD(0x100000, 0xC0); // sda high, scl high
|
|
do {
|
|
dataIn_MD();
|
|
eepStatus = ((readWord_MD(0x100000) >> 7) & 0x1);
|
|
dataOut_MD();
|
|
delayMicroseconds(4);
|
|
}
|
|
while (eepStatus == 1);
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
}
|
|
else if (eepType == 5) { // Codemasters
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
writeWord_CM(0x180000, 0x03); // sda high, scl high
|
|
do {
|
|
dataIn_MD();
|
|
eepStatus = ((readWord_MD(0x1C0000) >> 7) & 0x1);
|
|
dataOut_MD();
|
|
delayMicroseconds(4);
|
|
}
|
|
while (eepStatus == 1);
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
}
|
|
}
|
|
|
|
void EepromReadMode() {
|
|
EepromSet1(); // READ
|
|
EepromStatus(); // ACK
|
|
}
|
|
|
|
void EepromWriteMode() {
|
|
EepromSet0(); // WRITE
|
|
EepromStatus(); // ACK
|
|
}
|
|
|
|
void EepromReadData() {
|
|
if (eepType == 1) { // Acclaim Type 1
|
|
for (int i = 0; i < 8; i++) {
|
|
writeWord_MD(0x100000, 0x03); // sda high, scl high
|
|
dataIn_MD();
|
|
eepbit[i] = ((readWord_MD(0x100000) >> 1) & 0x1); // Read 0x100000 with Mask 0x1 (bit 1)
|
|
dataOut_MD();
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
}
|
|
}
|
|
else if (eepType == 2) { // Acclaim Type 2
|
|
for (int i = 0; i < 8; i++) {
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
dataIn_MD();
|
|
eepbit[i] = (readWord_MD(0x100000) & 0x1); // Read 0x100000 with Mask 0x1 (bit 0)
|
|
dataOut_MD();
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
}
|
|
}
|
|
else if (eepType == 3) { // Capcom/Sega
|
|
for (int i = 0; i < 8; i++) {
|
|
writeWord_MD(0x100000, 0x03); // sda high, scl high
|
|
dataIn_MD();
|
|
eepbit[i] = (readWord_MD(0x100000) & 0x1); // Read 0x100000 with Mask 0x1 (bit 0)
|
|
dataOut_MD();
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
}
|
|
}
|
|
else if (eepType == 4) { // EA
|
|
for (int i = 0; i < 8; i++) {
|
|
writeWord_MD(0x100000, 0xC0); // sda high, scl high
|
|
dataIn_MD();
|
|
eepbit[i] = ((readWord_MD(0x100000) >> 7) & 0x1); // Read 0x100000 with Mask (bit 7)
|
|
dataOut_MD();
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
}
|
|
}
|
|
else if (eepType == 5) { // Codemasters
|
|
for (int i = 0; i < 8; i++) {
|
|
writeWord_CM(0x180000, 0x03); // sda high, scl high
|
|
dataIn_MD();
|
|
eepbit[i] = ((readWord_MD(0x1C0000) >> 7) & 0x1); // Read 0x1C0000 with Mask 0x1 (bit 7)
|
|
dataOut_MD();
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
}
|
|
}
|
|
}
|
|
|
|
void EepromWriteData(byte data) {
|
|
for (int i = 0; i < 8; i++) {
|
|
if ((data >> 7) & 0x1) // Bit is HIGH
|
|
EepromSet1();
|
|
else // Bit is LOW
|
|
EepromSet0();
|
|
data <<= 1; // rotate to the next bit
|
|
}
|
|
EepromStatus(); // ACK
|
|
}
|
|
|
|
void EepromFinish() {
|
|
if (eepType == 2) { // Acclaim Type 2
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
}
|
|
else if (eepType == 4) { // EA
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
writeWord_MD(0x100000, 0xC0); // sda high, scl high
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
}
|
|
else if (eepType == 5) { // Codemasters
|
|
writeWord_CM(0x180000, 0x00); // sda low, scl low
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
writeWord_CM(0x180000, 0x03); // sda high, scl high
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
writeWord_CM(0x180000, 0x00); // sda low, scl low
|
|
}
|
|
else {
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x03); // sda high, scl high
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x00); // sda low, scl low
|
|
}
|
|
}
|
|
|
|
void EepromStop() {
|
|
if (eepType == 2) { // Acclaim Type 2
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x01); // scl high
|
|
writeWord_SDA(0x100000, 0x01); // sda high
|
|
writeWord_SCL(0x100000, 0x00); // scl low
|
|
writeWord_SDA(0x100000, 0x00); // sda low
|
|
writeWord_SCL(0x100000, 0x00); // scl low // STOP
|
|
}
|
|
else if (eepType == 4) { // EA
|
|
writeWord_MD(0x100000, 0x00); // sda, scl low
|
|
writeWord_MD(0x100000, 0x40); // sda low, scl high
|
|
writeWord_MD(0x100000, 0xC0); // sda, scl high
|
|
writeWord_MD(0x100000, 0x80); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x00); // STOP
|
|
}
|
|
else if (eepType == 5) { // Codemasters
|
|
writeWord_CM(0x180000, 0x00); // sda low, scl low
|
|
writeWord_CM(0x180000, 0x02); // sda low, scl high
|
|
writeWord_CM(0x180000, 0x03); // sda, scl high
|
|
writeWord_CM(0x180000, 0x01); // sda high, scl low
|
|
writeWord_CM(0x180000, 0x00); // STOP
|
|
}
|
|
else {
|
|
writeWord_MD(0x100000, 0x00); // sda, scl low
|
|
writeWord_MD(0x100000, 0x02); // sda low, scl high
|
|
writeWord_MD(0x100000, 0x03); // sda, scl high
|
|
writeWord_MD(0x100000, 0x01); // sda high, scl low
|
|
writeWord_MD(0x100000, 0x00); // STOP
|
|
}
|
|
}
|
|
|
|
void EepromSetAddress(word address) {
|
|
if (eepSize > 0x80) { // 24C02+
|
|
for (int i = 0; i < 8; i++) {
|
|
if ((address >> 7) & 0x1) // Bit is HIGH
|
|
EepromSet1();
|
|
else // Bit is LOW
|
|
EepromSet0();
|
|
address <<= 1; // rotate to the next bit
|
|
}
|
|
EepromStatus(); // ACK
|
|
}
|
|
else { // 24C01
|
|
for (int i = 0; i < 7; i++) {
|
|
if ((address >> 6) & 0x1) // Bit is HIGH
|
|
EepromSet1();
|
|
else // Bit is LOW
|
|
EepromSet0();
|
|
address <<= 1; // rotate to the next bit
|
|
}
|
|
}
|
|
}
|
|
|
|
void readEepromByte(word address) {
|
|
addrhi = address >> 8;
|
|
addrlo = address & 0xFF;
|
|
dataOut_MD();
|
|
if (eepType == 2)
|
|
EepromInit(0); // Enable EEPROM
|
|
EepromStart(); // START
|
|
if (eepSize > 0x80) {
|
|
EepromDevice(); // DEVICE [1010]
|
|
if (eepSize > 0x800) { // MODE 3 [24C65]
|
|
EepromSetDeviceAddress(0);
|
|
EepromWriteMode();
|
|
EepromSetAddress(addrhi); // ADDR [A15..A8]
|
|
}
|
|
else { // MODE 2 [24C02/24C08/24C16]
|
|
EepromSetDeviceAddress(addrhi); // ADDR [A10..A8]
|
|
EepromWriteMode();
|
|
}
|
|
}
|
|
EepromSetAddress(addrlo);
|
|
if (eepSize > 0x80) {
|
|
EepromStart(); // START
|
|
EepromDevice(); // DEVICE [1010]
|
|
if (eepSize > 0x800) // MODE 3 [24C65]
|
|
EepromSetDeviceAddress(0);
|
|
else // MODE 2 [24C02/24C08/24C16]
|
|
EepromSetDeviceAddress(addrhi); // ADDR [A10..A8]
|
|
}
|
|
EepromReadMode();
|
|
EepromReadData();
|
|
EepromFinish();
|
|
EepromStop(); // STOP
|
|
if (eepType == 2)
|
|
EepromInit(1); // Disable EEPROM
|
|
// OR 8 bits into byte
|
|
eeptemp = eepbit[0] << 7 | eepbit[1] << 6 | eepbit[2] << 5 | eepbit[3] << 4 | eepbit[4] << 3 | eepbit[5] << 2 | eepbit[6] << 1 | eepbit[7];
|
|
sdBuffer[addrlo] = eeptemp;
|
|
}
|
|
|
|
void writeEepromByte(word address) {
|
|
addrhi = address >> 8;
|
|
addrlo = address & 0xFF;
|
|
eeptemp = sdBuffer[addrlo];
|
|
dataOut_MD();
|
|
if (eepType == 2)
|
|
EepromInit(0); // Enable EEPROM
|
|
EepromStart(); // START
|
|
if (eepSize > 0x80) {
|
|
EepromDevice(); // DEVICE [1010]
|
|
if (eepSize > 0x800) { // MODE 3 [24C65]
|
|
EepromSetDeviceAddress(0); // [A2-A0] = 000
|
|
EepromWriteMode(); // WRITE
|
|
EepromSetAddress(addrhi); // ADDR [A15-A8]
|
|
}
|
|
else { // MODE 2 [24C02/24C08/24C16]
|
|
EepromSetDeviceAddress(addrhi); // ADDR [A10-A8]
|
|
EepromWriteMode(); // WRITE
|
|
}
|
|
EepromSetAddress(addrlo);
|
|
}
|
|
else { // 24C01
|
|
EepromSetAddress(addrlo);
|
|
EepromWriteMode(); // WRITE
|
|
}
|
|
EepromWriteData(eeptemp);
|
|
EepromStop(); // STOP
|
|
if (eepType == 2)
|
|
EepromInit(1); // Disable EEPROM
|
|
}
|
|
|
|
// Read EEPROM and save to the SD card
|
|
void readEEP_MD() {
|
|
dataIn_MD();
|
|
|
|
// Get name, add extension and convert to char array for sd lib
|
|
strcpy(fileName, romName);
|
|
strcat(fileName, ".eep");
|
|
|
|
// create a new folder for the save file
|
|
EEPROM_readAnything(0, foldern);
|
|
sd.chdir();
|
|
sprintf(folder, "MD/SAVE/%s/%d", romName, foldern);
|
|
sd.mkdir(folder, true);
|
|
sd.chdir(folder);
|
|
|
|
// write new folder number back to eeprom
|
|
foldern = foldern + 1;
|
|
EEPROM_writeAnything(0, foldern);
|
|
|
|
println_Msg(F("Reading..."));
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
if (eepSize > 0x100) { // 24C04+
|
|
for (word currByte = 0; currByte < eepSize; currByte += 256) {
|
|
print_Msg(F("*"));
|
|
display_Update();
|
|
for (int i = 0; i < 256; i++) {
|
|
readEepromByte(currByte + i);
|
|
}
|
|
myFile.write(sdBuffer, 256);
|
|
}
|
|
}
|
|
else { // 24C01/24C02
|
|
for (word currByte = 0; currByte < eepSize; currByte++) {
|
|
if ((currByte != 0) && ((currByte + 1) % 16 == 0)) {
|
|
print_Msg(F("*"));
|
|
display_Update();
|
|
}
|
|
readEepromByte(currByte);
|
|
}
|
|
myFile.write(sdBuffer, eepSize);
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
println_Msg(F(""));
|
|
display_Clear();
|
|
print_Msg(F("Saved to "));
|
|
print_Msg(folder);
|
|
|
|
display_Update();
|
|
}
|
|
|
|
void writeEEP_MD() {
|
|
dataOut_MD();
|
|
|
|
// Create filepath
|
|
sprintf(filePath, "%s/%s", filePath, fileName);
|
|
println_Msg(F("Writing..."));
|
|
println_Msg(filePath);
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
if (eepSize > 0x100) { // 24C04+
|
|
for (word currByte = 0; currByte < eepSize; currByte += 256) {
|
|
myFile.read(sdBuffer, 256);
|
|
for (int i = 0; i < 256; i++) {
|
|
writeEepromByte(currByte + i);
|
|
delay(50); // DELAY NEEDED
|
|
}
|
|
print_Msg(F("."));
|
|
display_Update();
|
|
}
|
|
}
|
|
else { // 24C01/24C02
|
|
myFile.read(sdBuffer, eepSize);
|
|
for (word currByte = 0; currByte < eepSize; currByte++) {
|
|
writeEepromByte(currByte);
|
|
print_Msg(F("."));
|
|
if ((currByte != 0) && ((currByte + 1) % 64 == 0))
|
|
println_Msg(F(""));
|
|
display_Update(); // ON SERIAL = delay(100)
|
|
}
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
println_Msg(F(""));
|
|
display_Clear();
|
|
println_Msg(F("Done"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
dataIn_MD();
|
|
}
|
|
|
|
//******************************************
|
|
// CD Backup RAM Functions
|
|
//******************************************
|
|
void readBram_MD() {
|
|
dataIn_MD();
|
|
|
|
// Get name, add extension and convert to char array for sd lib
|
|
strcpy(fileName, "Cart.brm");
|
|
|
|
// create a new folder for the save file
|
|
EEPROM_readAnything(0, foldern);
|
|
sd.chdir();
|
|
sprintf(folder, "MD/RAM/%d", foldern);
|
|
sd.mkdir(folder, true);
|
|
sd.chdir(folder);
|
|
|
|
// write new folder number back to eeprom
|
|
foldern = foldern + 1;
|
|
EEPROM_writeAnything(0, foldern);
|
|
|
|
println_Msg(F("Reading..."));
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
|
|
for (unsigned long currByte = 0; currByte < bramSize; currByte += 512) {
|
|
for (int i = 0; i < 512; i++) {
|
|
sdBuffer[i] = readWord_MD(0x300000 + currByte + i);
|
|
}
|
|
myFile.write(sdBuffer, 512);
|
|
}
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
println_Msg(F(""));
|
|
display_Clear();
|
|
print_Msg(F("Saved to "));
|
|
print_Msg(folder);
|
|
|
|
display_Update();
|
|
}
|
|
|
|
void writeBram_MD() {
|
|
dataOut_MD();
|
|
|
|
// Create filepath
|
|
sprintf(filePath, "%s/%s", filePath, fileName);
|
|
println_Msg(F("Writing..."));
|
|
println_Msg(filePath);
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
|
|
// 0x700000-0x7FFFFF: Writes by /LWR latch D0; 1=RAM write enabled, 0=disabled
|
|
writeWord_MD(0x380000, 1); // Enable BRAM Writes
|
|
|
|
for (unsigned long currByte = 0; currByte < bramSize; currByte += 512) {
|
|
myFile.read(sdBuffer, 512);
|
|
for (int i = 0; i < 512; i++) {
|
|
writeWord_MD(0x300000 + currByte + i, sdBuffer[i]);
|
|
}
|
|
}
|
|
writeWord_MD(0x380000, 0); // Disable BRAM Writes
|
|
// Close the file:
|
|
myFile.close();
|
|
println_Msg(F(""));
|
|
display_Clear();
|
|
println_Msg(F("Done"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
dataIn_MD();
|
|
}
|
|
|
|
//******************************************
|
|
// Realtec Mapper Functions
|
|
//******************************************
|
|
void writeRealtec(unsigned long address, byte value) { // Realtec 0x404000 (UPPER)/0x400000 (LOWER)
|
|
dataOut_MD();
|
|
PORTF = address & 0xFF; // 0x00 ADDR A0-A7
|
|
PORTK = (address >> 8) & 0xFF; // ADDR A8-A15
|
|
PORTL = (address >> 16) & 0xFF; //0x20 ADDR A16-A23
|
|
PORTA = 0x00; // DATA D8-D15
|
|
PORTH |= (1 << 0); // /RES HIGH
|
|
|
|
PORTH |= (1 << 3); // CE HIGH
|
|
PORTC = value;
|
|
PORTH &= ~(1 << 4) & ~(1 << 5); // /UDSW + /LDSW LOW
|
|
PORTH |= (1 << 4) | (1 << 5); // /UDSW + /LDSW HIGH
|
|
dataIn_MD();
|
|
}
|
|
|
|
void readRealtec_MD() {
|
|
// Set control
|
|
dataIn_MD();
|
|
|
|
// Get name, add extension and convert to char array for sd lib
|
|
strcpy(fileName, romName);
|
|
strcat(fileName, ".MD");
|
|
|
|
// create a new folder
|
|
EEPROM_readAnything(10, foldern);
|
|
sprintf(folder, "MD/ROM/%s/%d", romName, foldern);
|
|
sd.mkdir(folder, true);
|
|
sd.chdir(folder);
|
|
|
|
display_Clear();
|
|
print_Msg(F("Saving to "));
|
|
print_Msg(folder);
|
|
println_Msg(F("/..."));
|
|
display_Update();
|
|
|
|
// write new folder number back to eeprom
|
|
foldern = foldern + 1;
|
|
EEPROM_writeAnything(10, foldern);
|
|
|
|
// Open file on sd card
|
|
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
|
print_Error(F("SD Error"), true);
|
|
}
|
|
|
|
// Realtec Registers
|
|
writeWord_MD(0x201000, 4); // Number of 128K Blocks 0x402000 (0x201000)
|
|
writeRealtec(0x200000, 1); // ROM Lower Address 0x400000 (0x200000)
|
|
writeRealtec(0x202000, 0); // ROM Upper Address 0x404000 (0x202000)
|
|
|
|
word d = 0;
|
|
for (unsigned long currBuffer = 0; currBuffer < cartSize / 2; currBuffer += 256) {
|
|
// Blink led
|
|
if (currBuffer % 16384 == 0)
|
|
PORTB ^= (1 << 4);
|
|
|
|
for (int currWord = 0; currWord < 256; currWord++) {
|
|
word myWord = readWord_MD(currBuffer + currWord);
|
|
// Split word into two bytes
|
|
// Left
|
|
sdBuffer[d] = (( myWord >> 8 ) & 0xFF);
|
|
// Right
|
|
sdBuffer[d + 1] = (myWord & 0xFF);
|
|
d += 2;
|
|
}
|
|
myFile.write(sdBuffer, 512);
|
|
d = 0;
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
}
|
|
|
|
//******************************************
|
|
// End of File
|
|
//******************************************
|