mirror of https://github.com/sanni/cartreader.git
745 lines
19 KiB
C++
745 lines
19 KiB
C++
//******************************************
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// SNES Satellaview 8M Memory pack code by tamanegi_taro
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// Revision 1.0.0 October 22nd 2018
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// Added BSX Sram, copied from skamans enhanced sketch //sanni
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//******************************************
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#ifdef ENABLE_SV
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/******************************************
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Satellaview 8M Memory Pack
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******************************************/
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/******************************************
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Prototype Declarations
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*****************************************/
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/* Hoping that sanni will use this progressbar function */
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extern void draw_progressbar(uint32_t processedsize, uint32_t totalsize);
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//void svMenu();
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void readROM_SV();
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//void setup_SV();
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void writeROM_SV(void);
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void eraseCheck_SV(void);
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void supplyCheck_SV(void);
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void writeCheck_SV(void);
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void detectCheck_SV(void);
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void eraseAll_SV(void);
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/******************************************
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Variables
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*****************************************/
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//No global variables
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/******************************************
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Menu
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*****************************************/
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// SV flash menu items
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static const char svFlashMenuItem1[] PROGMEM = "Read Memory Pack";
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static const char svFlashMenuItem2[] PROGMEM = "Write Memory Pack";
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static const char svFlashMenuItem3[] PROGMEM = "Read BS-X Sram";
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static const char svFlashMenuItem4[] PROGMEM = "Write BS-X Sram";
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static const char* const menuOptionsSVFlash[] PROGMEM = { svFlashMenuItem1, svFlashMenuItem2, svFlashMenuItem3, svFlashMenuItem4, FSTRING_RESET };
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void svMenu() {
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// create menu with title and 3 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(menuOptionsSVFlash, 5);
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mainMenu = question_box(F("Satellaview 8M Memory"), 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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// Read memory pack
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case 0:
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// Change working dir to root
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sd.chdir("/");
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readROM_SV();
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break;
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// Write memory pack
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case 1:
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// Change working dir to root
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sd.chdir("/");
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writeROM_SV();
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break;
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// Read BS-X Sram
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case 2:
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// Change working dir to root
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sd.chdir("/");
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readSRAM_SV();
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break;
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// Write BS-X Sram
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case 3:
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// Change working dir to root
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sd.chdir("/");
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writeSRAM_SV();
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unsigned long wrErrors;
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wrErrors = verifySRAM_SV();
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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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} else {
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print_STR(error_STR, 0);
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print_Msg(wrErrors);
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print_STR(_bytes_STR, 1);
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print_Error(did_not_verify_STR);
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}
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wait();
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break;
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// Reset
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case 4:
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resetArduino();
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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_SV() {
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// Request 5V
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setVoltage(VOLTS_SET_5V);
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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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i2c_found = clockgen.init(SI5351_CRYSTAL_LOAD_8PF, 0, 0);
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if (i2c_found) {
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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_CLK0);
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clockgen.set_freq(307200000ULL, 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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}
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#ifdef ENABLE_CLOCKGEN
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else {
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display_Clear();
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print_FatalError(F("Clock Generator not found"));
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}
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#endif
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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 output
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DDRG |= (1 << 5);
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// Output High
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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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}
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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_SV(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"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"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"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"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"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"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_SV(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 -> 1000ns total
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"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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SatellaView BS-X Sram functions
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*****************************************/
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void readSRAM_SV() {
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// set control
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controlIn_SNES();
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// Get name, add extension and convert to char array for sd lib
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createFolder("SNES", "SAVE", "BSX", "srm");
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// write new folder number back to eeprom
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foldern = foldern + 1;
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EEPROM_writeAnything(0, foldern);
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//open file on sd card
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if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
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print_FatalError(sd_error_STR);
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}
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readBank_SV(0x10, 0); // Preconfigure to fix corrupt 1st byte
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//startBank = 0x10; endBank = 0x17; CS low
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for (byte BSBank = 0x10; BSBank < 0x18; BSBank++) {
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//startAddr = 0x5000
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for (long currByte = 0x5000; currByte < 0x6000; currByte += 512) {
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for (unsigned long c = 0; c < 512; c++) {
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sdBuffer[c] = readBank_SV(BSBank, currByte + c);
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}
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myFile.write(sdBuffer, 512);
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}
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}
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// Close the file:
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myFile.close();
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// Signal end of process
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display_Clear();
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print_Msg(F("Saved to "));
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print_Msg(folder);
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println_Msg(F("/..."));
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display_Update();
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wait();
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}
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void writeSRAM_SV() {
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filePath[0] = '\0';
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sd.chdir("/");
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fileBrowser(F("Select srm file"));
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// Create filepath
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sprintf(filePath, "%s/%s", filePath, fileName);
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//clear the screen
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display_Clear();
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//open file on sd card
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if (myFile.open(filePath, O_READ)) {
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// Set pins to output
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dataOut();
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// Set RST RD WR to High and CS to Low
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controlOut_SNES();
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println_Msg(F("Writing sram..."));
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display_Update();
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// Write to sram bank
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for (byte currBank = 0x10; currBank < 0x18; currBank++) {
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//startAddr = 0x5000
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for (long currByte = 0x5000; currByte < 0x6000; currByte += 512) {
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myFile.read(sdBuffer, 512);
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for (unsigned long c = 0; c < 512; c++) {
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//startBank = 0x10; CS low
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writeBank_SV(currBank, currByte + c, sdBuffer[c]);
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}
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}
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draw_progressbar(((currBank - 0x10) * 0x1000), 32768);
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}
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// Finish progressbar
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draw_progressbar(32768, 32768);
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delay(100);
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// Set pins to input
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dataIn();
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// Close the file:
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myFile.close();
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println_Msg("");
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println_Msg(F("SRAM writing finished"));
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display_Update();
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} else {
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print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
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}
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}
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// Check if the SRAM was written without any error
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unsigned long verifySRAM_SV() {
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//open file on sd card
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if (myFile.open(filePath, O_READ)) {
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// Variable for errors
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writeErrors = 0;
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// Set control
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controlIn_SNES();
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//startBank = 0x10; endBank = 0x17; CS low
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for (byte BSBank = 0x10; BSBank < 0x18; BSBank++) {
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//startAddr = 0x5000
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for (long currByte = 0x5000; currByte < 0x6000; currByte += 512) {
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//fill sdBuffer
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myFile.read(sdBuffer, 512);
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for (unsigned long c = 0; c < 512; c++) {
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if ((readBank_SV(BSBank, currByte + c)) != sdBuffer[c]) {
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writeErrors++;
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}
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}
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}
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}
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// Close the file:
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myFile.close();
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return writeErrors;
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} else {
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print_Error(F("Can't open file"));
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return 1;
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}
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}
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/******************************************
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SatellaView 8M Memory Pack functions
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*****************************************/
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// Read memory pack to SD card
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void readROM_SV() {
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// Set control
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dataIn();
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controlIn_SNES();
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// Get name, add extension and convert to char array for sd lib
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createFolder("SNES", "ROM", "MEMPACK", "bs");
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//clear the screen
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display_Clear();
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print_STR(saving_to_STR, 0);
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print_Msg(folder);
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println_Msg(F("/..."));
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display_Update();
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// write new folder number back to eeprom
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foldern = foldern + 1;
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EEPROM_writeAnything(0, foldern);
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//open file on sd card
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if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
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print_FatalError(create_file_STR);
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}
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// Read Banks
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for (int currBank = 0x40; currBank < 0x50; currBank++) {
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// Dump the bytes to SD 512B at a time
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for (long currByte = 0; currByte < 65536; currByte += 512) {
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draw_progressbar((currBank - 0x40) * 0x10000 + currByte, 0x100000);
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for (int c = 0; c < 512; c++) {
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sdBuffer[c] = readBank_SV(currBank, currByte + c);
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}
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myFile.write(sdBuffer, 512);
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}
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}
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draw_progressbar(0x100000, 0x100000); //Finish drawing progress bar
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// Close the file:
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myFile.close();
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println_Msg(F("Read pack completed"));
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display_Update();
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wait();
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}
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void writeROM_SV(void) {
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// Get Checksum as string to make sure that BS-X cart is inserted
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dataIn();
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controlIn_SNES();
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sprintf(checksumStr, "%02X%02X", readBank_SV(0, 65503), readBank_SV(0, 65502));
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//if CRC is not 8B86, BS-X cart is not inserted. Display error and reset
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if (strcmp("8B86", checksumStr) != 0) {
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display_Clear();
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print_FatalError(F("Error: Must use BS-X cart"));
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}
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//Display file Browser and wait user to select a file. Size must be 1MB.
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filePath[0] = '\0';
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sd.chdir("/");
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fileBrowser(F("Select BS file"));
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// Create filepath
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sprintf(filePath, "%s/%s", filePath, fileName);
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display_Clear();
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//open file on sd card
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if (myFile.open(filePath, O_READ)) {
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fileSize = myFile.fileSize();
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if (fileSize != 0x100000) {
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println_Msg(F("File must be 1MB"));
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display_Update();
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myFile.close();
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wait();
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return;
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}
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//Disable 8M memory pack write protection
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dataOut();
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controlOut_SNES();
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writeBank_SV(0x0C, 0x5000, 0x80); //Modify write enable register
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writeBank_SV(0x0E, 0x5000, 0x80); //Commit register modification
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//Erase memory pack
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println_Msg(F("Erasing pack..."));
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display_Update();
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eraseAll_SV();
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//Blank check
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//Set pins to input
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dataIn();
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controlIn_SNES();
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println_Msg(F("Blank check..."));
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display_Update();
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for (int currBank = 0xC0; currBank < 0xD0; currBank++) {
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draw_progressbar(((currBank - 0xC0) * 0x10000), 0x100000);
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for (long currByte = 0; currByte < 65536; currByte++) {
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if (0xFF != readBank_SV(currBank, currByte)) {
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println_Msg(FS(FSTRING_EMPTY));
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println_Msg(F("Erase failed"));
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display_Update();
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myFile.close();
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wait();
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return;
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}
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}
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}
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draw_progressbar(0x100000, 0x100000);
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//Write memory pack
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dataOut();
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controlOut_SNES();
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println_Msg(F("Writing pack..."));
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display_Update();
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for (int currBank = 0xC0; currBank < 0xD0; currBank++) {
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draw_progressbar(((currBank - 0xC0) * 0x10000), 0x100000);
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for (long currByte = 0; currByte < 65536; currByte++) {
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writeBank_SV(0xC0, 0x0000, 0x10); //Program Byte
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writeBank_SV(currBank, currByte, myFile.read());
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writeBank_SV(0xC0, 0x0000, 0x70); //Status Mode
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writeCheck_SV();
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}
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}
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writeBank_SV(0xC0, 0x0000, 0x70); //Status Mode
|
|
writeCheck_SV();
|
|
writeBank_SV(0xC0, 0x0000, 0xFF); //Terminate write
|
|
draw_progressbar(0x100000, 0x100000);
|
|
|
|
|
|
//Verify
|
|
dataIn(); //Set pins to input
|
|
controlIn_SNES();
|
|
myFile.seekSet(0); // Go back to file beginning
|
|
print_STR(verifying_STR, 1);
|
|
display_Update();
|
|
for (int currBank = 0xC0; currBank < 0xD0; currBank++) {
|
|
draw_progressbar(((currBank - 0xC0) * 0x10000), 0x100000);
|
|
for (long currByte = 0; currByte < 65536; currByte++) {
|
|
if (myFile.read() != readBank_SV(currBank, currByte)) {
|
|
println_Msg(FS(FSTRING_EMPTY));
|
|
println_Msg(F("Verify failed"));
|
|
display_Update();
|
|
myFile.close();
|
|
wait();
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
draw_progressbar(0x100000, 0x100000);
|
|
println_Msg(F("Finished successfully"));
|
|
display_Update();
|
|
wait();
|
|
|
|
} else {
|
|
print_Error(FS(FSTRING_FILE_DOESNT_EXIST));
|
|
}
|
|
}
|
|
|
|
void eraseCheck_SV(void) {
|
|
byte ret;
|
|
dataIn();
|
|
controlIn_SNES();
|
|
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0004);
|
|
|
|
// CE or OE must be toggled with each subsequent status read or the
|
|
// completion of a program or erase operation will not be evident.
|
|
while ((ret & 0x80) == 0x00) { //Wait until X.bit7 = 1
|
|
controlOut_SNES();
|
|
// Switch CS(PH3) High
|
|
PORTH |= (1 << 3);
|
|
// Leave CE high for at least 60ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
controlIn_SNES();
|
|
// Leave CE low for at least 50ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0004);
|
|
}
|
|
// Switch to write
|
|
dataOut();
|
|
controlOut_SNES();
|
|
}
|
|
|
|
void supplyCheck_SV(void) {
|
|
byte ret;
|
|
dataIn();
|
|
controlIn_SNES();
|
|
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0004);
|
|
|
|
// CE or OE must be toggled with each subsequent status read or the
|
|
// completion of a program or erase operation will not be evident.
|
|
while ((ret & 0x08) == 0x08) { //Wait until X.bit3 = 0
|
|
controlOut_SNES();
|
|
// Switch CS(PH3) High
|
|
PORTH |= (1 << 3);
|
|
// Leave CE high for at least 60ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
controlIn_SNES();
|
|
// Leave CE low for at least 50ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0004);
|
|
}
|
|
// Switch to write
|
|
dataOut();
|
|
controlOut_SNES();
|
|
}
|
|
|
|
void writeCheck_SV(void) {
|
|
byte ret;
|
|
dataIn();
|
|
controlIn_SNES();
|
|
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0000);
|
|
|
|
// CE or OE must be toggled with each subsequent status read or the
|
|
// completion of a program or erase operation will not be evident.
|
|
while ((ret & 0x80) == 0x00) {
|
|
controlOut_SNES();
|
|
// Switch CS(PH3) High
|
|
PORTH |= (1 << 3);
|
|
// Leave CE high for at least 60ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
controlIn_SNES();
|
|
// Leave CE low for at least 50ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0000);
|
|
}
|
|
// Switch to write
|
|
dataOut();
|
|
controlOut_SNES();
|
|
}
|
|
|
|
|
|
void detectCheck_SV(void) {
|
|
int i = 0;
|
|
byte ret;
|
|
dataIn();
|
|
controlIn_SNES();
|
|
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0002);
|
|
|
|
// CE or OE must be toggled with each subsequent status read or the
|
|
// completion of a program or erase operation will not be evident.
|
|
while ((ret & 0x80) == 0x00) {
|
|
i++;
|
|
if (i > 10000) {
|
|
//timeout
|
|
break;
|
|
}
|
|
controlOut_SNES();
|
|
// Switch CS(PH3) High
|
|
PORTH |= (1 << 3);
|
|
// Leave CE high for at least 60ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
controlIn_SNES();
|
|
// Leave CE low for at least 50ns
|
|
__asm__("nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t"
|
|
"nop\n\t");
|
|
// Read register
|
|
ret = readBank_SV(0xC0, 0x0002);
|
|
}
|
|
// Switch to write
|
|
dataOut();
|
|
controlOut_SNES();
|
|
}
|
|
|
|
|
|
void eraseAll_SV(void) {
|
|
dataOut();
|
|
controlOut_SNES();
|
|
writeBank_SV(0xC0, 0x0000, 0x50); //Clear Status Registers
|
|
writeBank_SV(0xC0, 0x0000, 0x71); //Status Mode
|
|
supplyCheck_SV();
|
|
writeBank_SV(0xC0, 0x0000, 0xA7); //Chip Erase
|
|
writeBank_SV(0xC0, 0x0000, 0xD0); //Confirm
|
|
writeBank_SV(0xC0, 0x0000, 0x71); //Status Mode
|
|
eraseCheck_SV();
|
|
writeBank_SV(0xC0, 0x0000, 0xFF); //Teriminate
|
|
}
|
|
|
|
#endif
|
|
|
|
//******************************************
|
|
// End of File
|
|
//******************************************
|