mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-24 05:29:17 +01:00
1122 lines
29 KiB
C++
1122 lines
29 KiB
C++
//******************************************
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// SUPER NINTENDO
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//******************************************
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/******************************************
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Defines
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*****************************************/
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// SNES Hi and LoRom, SA is HI with different Sram dumping
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#define EX 4
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#define SA 3
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#define HI 1
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#define LO 0
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/******************************************
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Variables
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*****************************************/
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// Define SNES Cart Reader Variables
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int romSpeed = 0; // 0 = SlowROM, 3 = FastROM
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int romChips = 0; // 0 = ROM only, 1 = ROM & RAM, 2 = ROM & Save RAM, 3 = ROM & DSP1, 4 = ROM & RAM & DSP1, 5 = ROM & Save RAM & DSP1, 19 = ROM & SFX
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// 227 = ROM & RAM & GameBoy data, 246 = ROM & DSP2
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byte romSizeExp = 0; // ROM-Size Exponent
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int cartCountry = 255;
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boolean NP = false;
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/******************************************
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Menu
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*****************************************/
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// SNES menu items
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const char SnesMenuItem1[] PROGMEM = "Read Rom";
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const char SnesMenuItem2[] PROGMEM = "Read Save";
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const char SnesMenuItem3[] PROGMEM = "Write Save";
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const char SnesMenuItem4[] PROGMEM = "Test SRAM";
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const char SnesMenuItem5[] PROGMEM = "Reset";
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const char* const menuOptionsSNES[] PROGMEM = {SnesMenuItem1, SnesMenuItem2, SnesMenuItem3, SnesMenuItem4, SnesMenuItem5};
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// Manual config menu items
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const char confMenuItem1[] PROGMEM = "4MB LoRom 256K Sram";
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const char confMenuItem2[] PROGMEM = "4MB HiRom 64K Sram";
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const char confMenuItem3[] PROGMEM = "6MB ExRom 256K Sram";
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const char confMenuItem4[] PROGMEM = "Reset";
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const char* const menuOptionsConf[] PROGMEM = {confMenuItem1, confMenuItem2, confMenuItem3, confMenuItem4};
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// SNES Menu
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void snesMenu() {
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// create menu with title and 7 options to choose from
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unsigned char mainMenu;
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// Copy menuOptions of of progmem
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convertPgm(menuOptionsSNES, 5);
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mainMenu = question_box("SNES Cart Reader", menuOptions, 5, 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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// Change working dir to root
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sd.chdir("/");
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readROM_SNES();
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compare_checksum();
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break;
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case 1:
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display_Clear();
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// Change working dir to root
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sd.chdir("/");
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readSRAM();
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break;
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case 2:
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display_Clear();
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// Change working dir to root
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sd.chdir("/");
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writeSRAM(1);
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unsigned long wrErrors;
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wrErrors = verifySRAM();
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if (wrErrors == 0) {
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println_Msg(F("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(wrErrors);
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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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break;
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case 3:
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display_Clear();
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// Change working dir to root
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sd.chdir("/");
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readSRAM();
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eraseSRAM(0x00);
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eraseSRAM(0xFF);
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writeSRAM(0);
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wrErrors = verifySRAM();
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if (wrErrors == 0) {
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println_Msg(F("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(wrErrors);
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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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break;
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case 4:
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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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// Menu for manual configuration
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void confMenu() {
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// create menu with title and 4 options to choose from
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unsigned char subMenu;
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// Copy menuOptions of of progmem
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convertPgm(menuOptionsConf, 4);
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subMenu = question_box("Choose mapping", menuOptions, 4, 0);
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// wait for user choice to come back from the question box menu
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switch (subMenu)
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{
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case 0:
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romType = LO;
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numBanks = 128;
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sramSize = 256;
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strcpy(romName, "LOROM");
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break;
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case 1:
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romType = HI;
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numBanks = 64;
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sramSize = 64;
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strcpy(romName, "HIROM");
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break;
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case 2:
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romType = EX;
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numBanks = 96;
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sramSize = 256;
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strcpy(romName, "EXROM");
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break;
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case 3:
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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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}
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/******************************************
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Setup
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*****************************************/
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void setup_Snes() {
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// Set cicrstPin(PG1) to Output
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DDRG |= (1 << 1);
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// Output a high signal until we're ready to start
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PORTG |= (1 << 1);
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// Set cichstPin(PG0) to Input
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DDRG &= ~(1 << 0);
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// Adafruit Clock Generator
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//clockgen.set_correction(-29000);
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clockgen.set_correction(0);
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clockgen.init(SI5351_CRYSTAL_LOAD_8PF, 0);
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clockgen.set_pll(SI5351_PLL_FIXED, SI5351_PLLA);
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clockgen.set_pll(SI5351_PLL_FIXED, SI5351_PLLB);
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clockgen.set_freq(2147727200ULL, SI5351_PLL_FIXED, SI5351_CLK0);
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clockgen.set_freq(307200000ULL, SI5351_PLL_FIXED, SI5351_CLK2);
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clockgen.output_enable(SI5351_CLK0, 1);
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clockgen.output_enable(SI5351_CLK1, 0);
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clockgen.output_enable(SI5351_CLK2, 1);
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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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//BA0-BA7
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DDRL = 0xFF;
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//PA0-PA7
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DDRA = 0xFF;
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// Set Control Pins to Output RST(PH0) CS(PH3) WR(PH5) RD(PH6)
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DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
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// Switch RST(PH0) and WR(PH5) to HIGH
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PORTH |= (1 << 0) | (1 << 5);
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// Switch CS(PH3) and RD(PH6) to LOW
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PORTH &= ~((1 << 3) | (1 << 6));
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// Set Refresh(PE5) to Output
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DDRE |= (1 << 5);
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// Switch Refresh(PE5) to LOW (needed for SA-1)
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PORTE &= ~(1 << 5);
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// Set CPU Clock(PH1) to Output
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DDRH |= (1 << 1);
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//PORTH &= ~(1 << 1);
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// Set IRQ(PH4) to Input
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DDRH &= ~(1 << 4);
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// Activate Internal Pullup Resistors
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//PORTH |= (1 << 4);
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// Set expand(PG5) to Imput
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DDRG &= ~(1 << 5);
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// Activate Internal Pullup Resistors
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//PORTG |= (1 << 5);
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// Set Data Pins (D0-D7) to Input
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DDRC = 0x00;
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// Enable Internal Pullups
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//PORTC = 0xFF;
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// Unused pins
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// Set wram(PE4) to Output
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DDRE |= (1 << 4);
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//PORTE &= ~(1 << 4);
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// Set pawr(PJ1) to Output
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DDRJ |= (1 << 1);
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//PORTJ &= ~(1 << 1);
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// Set pard(PJ0) to Output
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DDRJ |= (1 << 0);
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//PORTJ &= ~(1 << 0);
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// Start CIC by outputting a low signal to cicrstPin(PG1)
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PORTG &= ~(1 << 1);
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// Wait for CIC reset
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delay(1000);
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// Print all the info
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printStartPage();
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}
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/******************************************
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I/O Functions
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*****************************************/
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// Switch control pins to write
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void controlOut_SNES() {
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// Switch RD(PH6) and WR(PH5) to HIGH
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PORTH |= (1 << 6) | (1 << 5);
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// Switch CS(PH3) to LOW
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PORTH &= ~(1 << 3);
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}
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// Switch control pins to read
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void controlIn_SNES() {
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// Switch WR(PH5) to HIGH
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PORTH |= (1 << 5);
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// Switch CS(PH3) and RD(PH6) to LOW
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PORTH &= ~((1 << 3) | (1 << 6));
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}
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/******************************************
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Low level functions
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*****************************************/
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// Write one byte of data to a location specified by bank and address, 00:0000
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void writeBank_SNES(byte myBank, word myAddress, byte myData) {
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PORTL = myBank;
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTC = myData;
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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""nop\n\t""nop\n\t""nop\n\t""nop\n\t""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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// Leave WR 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 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""nop\n\t""nop\n\t");
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}
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// Read one byte of data from a location specified by bank and address, 00:0000
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byte readBank_SNES(byte myBank, word myAddress) {
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PORTL = myBank;
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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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
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byte tempByte = PINC;
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return tempByte;
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}
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/******************************************
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SNES ROM Functions
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******************************************/
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void printStartPage() {
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// Print start page
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if (checkcart() == 0) {
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display_Clear();
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rgb.setColor(255, 0, 0);
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println_Msg(F("ERROR"));
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println_Msg(F("Rom header corrupt"));
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println_Msg(F("or missing"));
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println_Msg(F(""));
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println_Msg(F(""));
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println_Msg(F("Press button for"));
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println_Msg(F("manual configuration"));
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println_Msg(F("or powercycle if SA1"));
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display_Update();
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wait();
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confMenu();
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}
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else {
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display_Clear();
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print_Msg(F("Rom Name: "));
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println_Msg(romName);
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print_Msg(F("Type: "));
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if (romType == HI)
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print_Msg(F("HiROM"));
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else if (romType == LO)
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print_Msg(F("LoROM"));
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else if (romType == EX)
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print_Msg(F("ExHiRom"));
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else
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print_Msg(romType);
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print_Msg(F(" "));
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if (romSpeed == 0)
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println_Msg(F("SlowROM"));
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else if (romSpeed == 2)
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println_Msg(F("SlowROM"));
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else if (romSpeed == 3)
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println_Msg(F("FastROM"));
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else
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println_Msg(romSpeed);
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print_Msg(F("ICs: ROM "));
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if (romChips == 0)
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println_Msg(F("ONLY"));
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else if (romChips == 1)
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println_Msg(F("RAM"));
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else if (romChips == 2)
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println_Msg(F("SAVE"));
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else if (romChips == 3)
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println_Msg(F("DSP1"));
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else if (romChips == 4)
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println_Msg(F("DSP1 RAM"));
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else if (romChips == 5)
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println_Msg(F("DSP1 SAVE"));
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else if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26))
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println_Msg(F("SuperFX"));
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else if (romChips == 52) {
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println_Msg(F("SA1 RAM"));
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romType = SA;
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}
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else if (romChips == 53) {
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println_Msg(F("SA1 RAM BATT"));
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romType = SA;
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}
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else if (romChips == 227)
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println_Msg(F("RAM GBoy"));
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else if (romChips == 246)
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println_Msg(F("DSP2"));
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else
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println_Msg(F(""));
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print_Msg(F("Rom Size: "));
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print_Msg(romSize);
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println_Msg(F("Mbit"));
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print_Msg(F("Banks: "));
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println_Msg(numBanks);
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print_Msg(F("Sram Size: "));
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print_Msg(sramSize);
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println_Msg(F("Kbit"));
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print_Msg(F("ROM Version: 1."));
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println_Msg(romVersion);
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print_Msg(F("Checksum: "));
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println_Msg(checksumStr);
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display_Update();
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// Wait for user input
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println_Msg(F(" "));
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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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void checkAltConf() {
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char tempStr1[2];
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char tempStr2[5];
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char sizeStr[3];
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char bankStr[3];
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if (myFile.open("snes.txt", O_READ)) {
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while (myFile.available()) {
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// Read 4 bytes into String, do it one at a time so byte order doesn't get mixed up
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sprintf(tempStr1, "%c", myFile.read());
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strcpy(tempStr2, tempStr1);
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sprintf(tempStr1, "%c", myFile.read());
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strcat(tempStr2, tempStr1);
|
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sprintf(tempStr1, "%c", myFile.read());
|
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strcat(tempStr2, tempStr1);
|
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sprintf(tempStr1, "%c", myFile.read());
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strcat(tempStr2, tempStr1);
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|
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// Check if string is a match
|
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if (strcmp(tempStr2, checksumStr) == 0) {
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||
|
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// Skip the , in the file
|
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myFile.seekSet(myFile.curPosition() + 1);
|
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|
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// Read next two bytes into a string
|
||
romSize = myFile.read() - 48;
|
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romSize = romSize * 10 + myFile.read() - 48;
|
||
|
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// Skip the , in the file
|
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myFile.seekSet(myFile.curPosition() + 1);
|
||
|
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// Add next two bytes to the string
|
||
numBanks = myFile.read() - 48;
|
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numBanks = numBanks * 10 + myFile.read() - 48;
|
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}
|
||
// If no match empty string advance by 8 and try again
|
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else {
|
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myFile.seekSet(myFile.curPosition() + 8);
|
||
}
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
}
|
||
|
||
// Read header information
|
||
void getCartInfo_SNES() {
|
||
// set control to read
|
||
dataIn();
|
||
|
||
// Get Checksum as string
|
||
sprintf(checksumStr, "%02X%02X", readBank_SNES(0, 65503), readBank_SNES(0, 65502));
|
||
|
||
// Check if ExHiROM
|
||
if (readBank_SNES(0, 0xFFD5) == 0x35) {
|
||
romType = EX;
|
||
}
|
||
else {
|
||
// Check if LoROM or HiROM
|
||
romType = (readBank_SNES(0, 0xFFD5) & 1);
|
||
}
|
||
|
||
// Check RomSpeed
|
||
romSpeed = (readBank_SNES(0, 65493) >> 4);
|
||
|
||
// Check RomChips
|
||
romChips = readBank_SNES(0, 65494);
|
||
|
||
// Check RomSize
|
||
byte romSizeExp = readBank_SNES(0, 65495) - 7;
|
||
romSize = 1;
|
||
while (romSizeExp--)
|
||
romSize *= 2;
|
||
|
||
if ((romType == EX) || (romType == SA)) {
|
||
numBanks = long(romSize) * 2;
|
||
}
|
||
else {
|
||
numBanks = (long(romSize) * 1024 * 1024 / 8) / (32768 + (long(romType) * 32768));
|
||
}
|
||
|
||
//Check SD card for alt config
|
||
checkAltConf();
|
||
|
||
// Dump name into 8.3 compatible format
|
||
byte myByte = 0;
|
||
byte myLength = 0;
|
||
for (unsigned int i = 65472; i < 65492; i++) {
|
||
myByte = readBank_SNES(0, i);
|
||
if (((char(myByte) >= 48 && char(myByte) <= 57) || (char(myByte) >= 65 && char(myByte) <= 122)) && myLength < 8) {
|
||
romName[myLength] = char(myByte);
|
||
myLength++;
|
||
}
|
||
}
|
||
|
||
// Read sramSizeExp
|
||
byte sramSizeExp;
|
||
if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) {
|
||
// SuperFX
|
||
if (readBank_SNES(0, 0x7FDA) == 0x33) {
|
||
sramSizeExp = readBank_SNES(0, 0x7FBD);
|
||
}
|
||
else {
|
||
if (strncmp(romName, "STARFOX2", 8) == 0) {
|
||
sramSizeExp = 6;
|
||
}
|
||
else {
|
||
sramSizeExp = 5;
|
||
}
|
||
}
|
||
}
|
||
else {
|
||
// No SuperFX
|
||
sramSizeExp = readBank_SNES(0, 0xFFD8);
|
||
}
|
||
|
||
// Calculate sramSize
|
||
if (sramSizeExp != 0) {
|
||
sramSizeExp = sramSizeExp + 3;
|
||
sramSize = 1;
|
||
while (sramSizeExp--)
|
||
sramSize *= 2;
|
||
}
|
||
else {
|
||
sramSize = 0;
|
||
}
|
||
|
||
// Check Cart Country
|
||
cartCountry = readBank_SNES(0, 65497);
|
||
|
||
// ROM Version
|
||
romVersion = readBank_SNES(0, 65499);
|
||
}
|
||
|
||
boolean checkcart() {
|
||
// If cart is present and checksum is equal to reverse checksum
|
||
if (((word(readBank_SNES(0, 65500)) + (word(readBank_SNES(0, 65501)) * 256)) + (word(readBank_SNES(0, 65502)) + (word(readBank_SNES(0, 65503)) * 256))) == 65535 ) {
|
||
getCartInfo_SNES();
|
||
return 1;
|
||
}
|
||
// Either rom checksum is wrong or no cart is inserted
|
||
else {
|
||
errorLvl = 1;
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
unsigned int calc_checksum (char* fileName, char* folder) {
|
||
unsigned int calcChecksum = 0;
|
||
unsigned int calcChecksumChunk = 0;
|
||
int calcFilesize = 0;
|
||
unsigned int c = 0;
|
||
unsigned long i = 0;
|
||
unsigned long j = 0;
|
||
|
||
if (strcmp(folder, "root") != 0)
|
||
sd.chdir(folder);
|
||
|
||
// If file exists
|
||
if (myFile.open(fileName, O_READ)) {
|
||
calcFilesize = myFile.fileSize() * 8 / 1024 / 1024;
|
||
|
||
// Nintendo Power (SF Memory Cassette)
|
||
// Read up to 0x60000 then add FFs to 0x80000
|
||
if (NP == true) {
|
||
for (i = 0; i < (0x60000 / 512); i++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
calcChecksum = calcChecksumChunk;
|
||
}
|
||
calcChecksum += 0xF47C; // FFs from 0x60000-0x80000
|
||
}
|
||
else if (calcFilesize == 12 || calcFilesize == 20) {
|
||
// Divide filesize by 8 to get number of 8Mbit chunks
|
||
for (i = 0; i < (calcFilesize / 8); i++ ) {
|
||
// Add all the bits in the 8Mbit chunks
|
||
for (j = 0; j < (1048576 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
}
|
||
calcChecksum = calcChecksumChunk;
|
||
}
|
||
calcChecksumChunk = 0;
|
||
// Add the 4Mbit rest
|
||
for (j = 0; j < (524288 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
}
|
||
calcChecksum += 2 * calcChecksumChunk;
|
||
}
|
||
else if (calcFilesize == 24 || calcFilesize == 28) {
|
||
/* Momotarou Dentestu Happy Fix 3MB (24Mbit)
|
||
if ((calcFilesize == 24) && (romSizeExp = 0x0C)) {
|
||
for (i = 0; i < (myFile.fileSize() / 512); i++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
}
|
||
calcChecksum = 2 * calcChecksumChunk;
|
||
}
|
||
else {*/
|
||
for (i = 0; i < (calcFilesize / 16); i++ ) {
|
||
// Add all the bits in the 16Mbit chunks
|
||
for (j = 0; j < (2097152 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
}
|
||
calcChecksum = calcChecksumChunk;
|
||
}
|
||
calcChecksumChunk = 0;
|
||
|
||
// Add the 8Mbit rest
|
||
for (j = 0; j < (1048576 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
}
|
||
calcChecksum += 2 * calcChecksumChunk;
|
||
//}
|
||
}
|
||
else if ((calcFilesize == 40) && (romChips == 85)) {
|
||
// Daikaijuu Monogatari 2 Fix 5MB (40Mbit)
|
||
// Add the 4MB (32Mbit) start
|
||
for (j = 0; j < (4194304 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
calcChecksum = calcChecksumChunk;
|
||
}
|
||
calcChecksumChunk = 0;
|
||
// Add the 1MB (8Mbit) end
|
||
for (j = 0; j < (1048576 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
}
|
||
calcChecksum += 4 * calcChecksumChunk;
|
||
}
|
||
else if (calcFilesize == 48) {
|
||
// Star Ocean/Tales of Phantasia Fix 6MB (48Mbit)
|
||
// Add the 4MB (32Mbit) start
|
||
for (j = 0; j < (4194304 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
calcChecksum = calcChecksumChunk;
|
||
}
|
||
calcChecksumChunk = 0;
|
||
// Add the 2MB (16Mbit) end
|
||
for (j = 0; j < (2097152 / 512); j++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
}
|
||
calcChecksum += 2 * calcChecksumChunk;
|
||
}
|
||
else {
|
||
//calcFilesize == 2 || 4 || 8 || 16 || 32 || 40 || etc
|
||
for (i = 0; i < (myFile.fileSize() / 512); i++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (c = 0; c < 512; c++) {
|
||
calcChecksumChunk += sdBuffer[c];
|
||
}
|
||
calcChecksum = calcChecksumChunk;
|
||
}
|
||
}
|
||
myFile.close();
|
||
sd.chdir();
|
||
return (calcChecksum);
|
||
}
|
||
// Else show error
|
||
else {
|
||
print_Error(F("DUMP ROM 1ST"), false);
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
boolean compare_checksum() {
|
||
|
||
println_Msg(F("Calculating Checksum"));
|
||
display_Update();
|
||
|
||
strcpy(fileName, romName);
|
||
strcat(fileName, ".sfc");
|
||
|
||
// last used rom folder
|
||
EEPROM_readAnything(0, foldern);
|
||
sprintf(folder, "ROM/%s/%d", romName, foldern - 1);
|
||
|
||
char calcsumStr[5];
|
||
sprintf(calcsumStr, "%04X", calc_checksum(fileName, folder));
|
||
|
||
if (strcmp(calcsumStr, checksumStr) == 0) {
|
||
print_Msg(F("Result: "));
|
||
println_Msg(calcsumStr);
|
||
println_Msg(F("Checksum matches"));
|
||
display_Update();
|
||
return 1;
|
||
}
|
||
else {
|
||
print_Msg(F("Result: "));
|
||
println_Msg(calcsumStr);
|
||
print_Error(F("Checksum Error"), false);
|
||
display_Update();
|
||
return 0;
|
||
}
|
||
}
|
||
|
||
// Read rom to SD card
|
||
void readROM_SNES() {
|
||
// Set control
|
||
dataIn();
|
||
controlIn_SNES();
|
||
|
||
// Get name, add extension and convert to char array for sd lib
|
||
strcpy(fileName, romName);
|
||
strcat(fileName, ".sfc");
|
||
|
||
// create a new folder for the save file
|
||
EEPROM_readAnything(0, foldern);
|
||
sprintf(folder, "ROM/%s/%d", romName, foldern);
|
||
sd.mkdir(folder, true);
|
||
sd.chdir(folder);
|
||
|
||
//clear the screen
|
||
display_Clear();
|
||
println_Msg(F("Creating folder: "));
|
||
println_Msg(folder);
|
||
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("Can't create file on SD"), true);
|
||
}
|
||
|
||
// Check if LoROM or HiROM...
|
||
if (romType == LO) {
|
||
println_Msg(F("Dumping LoRom..."));
|
||
display_Update();
|
||
|
||
// Read up to 96 banks starting at bank 0×00.
|
||
for (int currBank = 0; currBank < numBanks; currBank++) {
|
||
// Dump the bytes to SD 512B at a time
|
||
for (long currByte = 32768; currByte < 65536; currByte += 512) {
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
sdBuffer[c] = readBank_SNES(currBank, currByte + c);
|
||
}
|
||
myFile.write(sdBuffer, 512);
|
||
}
|
||
}
|
||
}
|
||
// Dump High-type ROM
|
||
else if ((romType == HI) || (romType == SA) || (romType == EX)) {
|
||
println_Msg(F("Dumping HiRom..."));
|
||
display_Update();
|
||
|
||
for (int currBank = 192; currBank < (numBanks + 192); currBank++) {
|
||
for (long currByte = 0; currByte < 65536; currByte += 512) {
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
sdBuffer[c] = readBank_SNES(currBank, currByte + c);
|
||
}
|
||
myFile.write(sdBuffer, 512);
|
||
}
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
|
||
// Signal end of process
|
||
print_Msg(F("Saved as "));
|
||
println_Msg(fileName);
|
||
}
|
||
|
||
/******************************************
|
||
SNES SRAM Functions
|
||
*****************************************/
|
||
// Write file to SRAM
|
||
void writeSRAM (boolean browseFile) {
|
||
if (browseFile) {
|
||
filePath[0] = '\0';
|
||
sd.chdir("/");
|
||
fileBrowser("Select srm file");
|
||
// Create filepath
|
||
sprintf(filePath, "%s/%s", filePath, fileName);
|
||
display_Clear();
|
||
}
|
||
else
|
||
sprintf(filePath, "%s", fileName);
|
||
|
||
//open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
|
||
// Set pins to output
|
||
dataOut();
|
||
|
||
// Set RST RD WR to High and CS to Low
|
||
controlOut_SNES();
|
||
|
||
// LoRom
|
||
if (romType == LO) {
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0; currByte < lastByte; currByte++) {
|
||
writeBank_SNES(0x70, currByte, myFile.read());
|
||
}
|
||
}
|
||
|
||
// HiRom
|
||
else if (romType == HI) {
|
||
// Writing SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte++) {
|
||
writeBank_SNES(0x30, currByte, myFile.read());
|
||
}
|
||
}
|
||
// ExHiRom
|
||
else if (romType == EX) {
|
||
// Writing SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte++) {
|
||
writeBank_SNES(0xB0, currByte, myFile.read());
|
||
}
|
||
}
|
||
// SA1
|
||
else if (romType == SA) {
|
||
// Writing SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0x0; currByte < lastByte; currByte++) {
|
||
writeBank_SNES(0x40, currByte, myFile.read());
|
||
}
|
||
}
|
||
|
||
// Set pins to input
|
||
dataIn();
|
||
|
||
// Close the file:
|
||
myFile.close();
|
||
println_Msg(F("SRAM writing finished"));
|
||
display_Update();
|
||
|
||
}
|
||
else {
|
||
print_Error(F("File doesnt exist"), false);
|
||
}
|
||
}
|
||
|
||
void readSRAM () {
|
||
// set control
|
||
controlIn_SNES();
|
||
|
||
// 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, "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);
|
||
}
|
||
if (romType == LO) {
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0; currByte < lastByte; currByte++) {
|
||
myFile.write(readBank_SNES(0x70, currByte));
|
||
}
|
||
}
|
||
else if (romType == HI) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte++) {
|
||
myFile.write(readBank_SNES(0x30, currByte));
|
||
}
|
||
}
|
||
else if (romType == EX) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte++) {
|
||
myFile.write(readBank_SNES(0xB0, currByte));
|
||
}
|
||
}
|
||
else if (romType == SA) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0x0; currByte < lastByte; currByte++) {
|
||
myFile.write(readBank_SNES(0x40, currByte));
|
||
}
|
||
}
|
||
|
||
// Close the file:
|
||
myFile.close();
|
||
|
||
// Signal end of process
|
||
print_Msg(F("Saved to SAVE/"));
|
||
print_Msg(romName);
|
||
print_Msg(F("/"));
|
||
print_Msg(foldern - 1);
|
||
print_Msg(F("/"));
|
||
println_Msg(fileName);
|
||
display_Update();
|
||
}
|
||
|
||
// Check if the SRAM was written without any error
|
||
unsigned long verifySRAM() {
|
||
//open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
|
||
// Variable for errors
|
||
writeErrors = 0;
|
||
|
||
// Set control
|
||
controlIn_SNES();
|
||
|
||
if (romType == LO) {
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0; currByte < lastByte; currByte += 512) {
|
||
//fill sdBuffer
|
||
myFile.read(sdBuffer, 512);
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
if ((readBank_SNES(0x70, currByte + c)) != sdBuffer[c]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else if (romType == HI) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte += 512) {
|
||
//fill sdBuffer
|
||
myFile.read(sdBuffer, 512);
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
if ((readBank_SNES(0x30, currByte + c)) != sdBuffer[c]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else if (romType == EX) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte += 512) {
|
||
//fill sdBuffer
|
||
myFile.read(sdBuffer, 512);
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
if ((readBank_SNES(0xB0, currByte + c)) != sdBuffer[c]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else if (romType == SA) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0x0; currByte < lastByte; currByte += 512) {
|
||
//fill sdBuffer
|
||
myFile.read(sdBuffer, 512);
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
if ((readBank_SNES(0x40, currByte + c)) != sdBuffer[c]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
return writeErrors;
|
||
}
|
||
else {
|
||
print_Error(F("Can't open file"), false);
|
||
}
|
||
}
|
||
|
||
// Overwrite the entire SRAM
|
||
boolean eraseSRAM (byte b) {
|
||
print_Msg(F("0x"));
|
||
print_Msg(b, HEX);
|
||
print_Msg(F(": "));
|
||
display_Update();
|
||
|
||
// Set pins to output
|
||
dataOut();
|
||
|
||
// Set control pins
|
||
controlOut_SNES();
|
||
|
||
if (romType == LO) {
|
||
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0; currByte < lastByte; currByte++) {
|
||
writeBank_SNES(0x70, currByte, b);
|
||
}
|
||
}
|
||
else if (romType == HI) {
|
||
// Writing SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte++) {
|
||
writeBank_SNES(0x30, currByte, b);
|
||
|
||
}
|
||
}
|
||
// ExHiRom
|
||
else if (romType == EX) {
|
||
// Writing SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte++) {
|
||
writeBank_SNES(0xB0, currByte, b);
|
||
}
|
||
}
|
||
dataIn();
|
||
|
||
// Variable for errors
|
||
writeErrors = 0;
|
||
|
||
// Set control
|
||
controlIn_SNES();
|
||
|
||
if (romType == LO) {
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128);
|
||
for (long currByte = 0; currByte < lastByte; currByte += 512) {
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
if ((readBank_SNES(0x70, currByte + c)) != b) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else if (romType == HI) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte += 512) {
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
if ((readBank_SNES(0x30, currByte + c)) != b) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
else if (romType == EX) {
|
||
// Dumping SRAM on HiRom needs CS(PH3) to be high
|
||
PORTH |= (1 << 3);
|
||
// Sram size
|
||
long lastByte = (long(sramSize) * 128) + 0x6000;
|
||
for (long currByte = 0x6000; currByte < lastByte; currByte += 512) {
|
||
for (unsigned long c = 0; c < 512; c++) {
|
||
if ((readBank_SNES(0xB0, currByte + c)) != b) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
if (writeErrors == 0) {
|
||
println_Msg(F("OK"));
|
||
return 1;
|
||
}
|
||
else {
|
||
println_Msg(F("ERROR"));
|
||
return 0;
|
||
}
|
||
display_Update();
|
||
}
|
||
|
||
//******************************************
|
||
// End of File
|
||
//******************************************
|