//****************************************** // SUPER NINTENDO MODULE //****************************************** #ifdef enable_SNES /****************************************** Defines *****************************************/ // SNES Hi and LoRom, SA is HI with different Sram dumping #define EX 4 #define SA 3 #define HI 1 #define LO 0 /****************************************** Variables *****************************************/ // Define SNES Cart Reader Variables int romSpeed = 0; // 0 = SlowROM, 3 = FastROM 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 // 227 = ROM & RAM & GameBoy data, 243 = CX4, 246 = ROM & DSP2 byte romSizeExp = 0; // ROM-Size Exponent boolean NP = false; byte cx4Type = 0; byte cx4Map = 0; boolean altconf = 0; /****************************************** Menu *****************************************/ // SNES/Nintendo Power SF Memory start menu static const char snsMenuItem1[] PROGMEM = "Super Nintendo"; static const char snsMenuItem2[] PROGMEM = "NPower SF Memory"; static const char snsMenuItem3[] PROGMEM = "Satellaview BS-X"; static const char snsMenuItem4[] PROGMEM = "Flash repro"; #ifdef clockgen_calibration static const char snsMenuItem5[] PROGMEM = "Calibrate Clock"; static const char snsMenuItem6[] PROGMEM = "Reset"; static const char* const menuOptionsSNS[] PROGMEM = {snsMenuItem1, snsMenuItem2, snsMenuItem3, snsMenuItem4, snsMenuItem5, snsMenuItem6}; #else static const char snsMenuItem5[] PROGMEM = "Reset"; static const char* const menuOptionsSNS[] PROGMEM = {snsMenuItem1, snsMenuItem2, snsMenuItem3, snsMenuItem4, snsMenuItem5}; #endif // SNES menu items static const char SnesMenuItem1[] PROGMEM = "Read Rom"; static const char SnesMenuItem2[] PROGMEM = "Read Save"; static const char SnesMenuItem3[] PROGMEM = "Write Save"; static const char SnesMenuItem4[] PROGMEM = "Test SRAM"; static const char SnesMenuItem5[] PROGMEM = "Cycle cart"; static const char SnesMenuItem6[] PROGMEM = "Force cart type"; static const char SnesMenuItem7[] PROGMEM = "Reset"; static const char* const menuOptionsSNES[] PROGMEM = {SnesMenuItem1, SnesMenuItem2, SnesMenuItem3, SnesMenuItem4, SnesMenuItem5, SnesMenuItem6, SnesMenuItem7}; // Manual config menu items static const char confMenuItem1[] PROGMEM = "Use header info"; static const char confMenuItem2[] PROGMEM = "4MB LoRom 256K Sram"; static const char confMenuItem3[] PROGMEM = "4MB HiRom 64K Sram"; static const char confMenuItem4[] PROGMEM = "6MB ExRom 256K Sram"; static const char confMenuItem5[] PROGMEM = "Reset"; static const char* const menuOptionsConfManual[] PROGMEM = {confMenuItem1, confMenuItem2, confMenuItem3, confMenuItem4, confMenuItem5}; // Repro menu items static const char reproMenuItem1[] PROGMEM = "LoRom (P0)"; static const char reproMenuItem2[] PROGMEM = "HiRom (P0)"; static const char reproMenuItem3[] PROGMEM = "ExLoRom (P1)"; static const char reproMenuItem4[] PROGMEM = "ExHiRom (P1)"; static const char reproMenuItem5[] PROGMEM = "Reset"; static const char* const menuOptionsRepro[] PROGMEM = {reproMenuItem1, reproMenuItem2, reproMenuItem3, reproMenuItem4, reproMenuItem5}; // SNES repro menu void reproMenu() { // create menu with title and 6 options to choose from unsigned char snsRepro; // Copy menuOptions out of progmem convertPgm(menuOptionsRepro, 5); snsRepro = question_box(F("Select Repro Type"), menuOptions, 5, 0); // wait for user choice to come back from the question box menu switch (snsRepro) { #ifdef enable_FLASH case 0: // LoRom display_Clear(); display_Update(); mapping = 0; setup_Flash8(); id_Flash8(); wait(); mode = mode_FLASH8; break; case 1: // HiRom display_Clear(); display_Update(); mapping = 1; setup_Flash8(); id_Flash8(); wait(); mode = mode_FLASH8; break; case 2: // ExLoRom display_Clear(); display_Update(); mapping = 2; setup_Flash8(); id_Flash8(); wait(); mode = mode_FLASH8; break; case 3: // ExHiRom display_Clear(); display_Update(); mapping = 3; setup_Flash8(); id_Flash8(); wait(); mode = mode_FLASH8; break; #endif case 4: resetArduino(); break; } } // SNES start menu void snsMenu() { // create menu with title and 6 options to choose from unsigned char snsCart; // Copy menuOptions out of progmem #ifdef clockgen_calibration convertPgm(menuOptionsSNS, 6); snsCart = question_box(F("Select Cart Type"), menuOptions, 6, 0); #else convertPgm(menuOptionsSNS, 5); snsCart = question_box(F("Select Cart Type"), menuOptions, 5, 0); #endif // wait for user choice to come back from the question box menu switch (snsCart) { case 0: display_Clear(); display_Update(); setup_Snes(); mode = mode_SNES; break; #ifdef enable_SFM case 1: display_Clear(); display_Update(); setup_SFM(); mode = mode_SFM; break; #endif #ifdef enable_SV case 2: display_Clear(); display_Update(); setup_SV(); mode = mode_SV; break; #endif #ifdef enable_FLASH case 3: reproMenu(); break; #endif case 4: #ifdef clockgen_calibration clkcal(); break; case 5: #endif resetArduino(); break; } } // SNES Menu void snesMenu() { // create menu with title and 7 options to choose from unsigned char mainMenu; // Copy menuOptions out of progmem convertPgm(menuOptionsSNES, 7); mainMenu = question_box(F("SNES Cart Reader"), menuOptions, 7, 0); // wait for user choice to come back from the question box menu switch (mainMenu) { case 0: { if (numBanks > 0) { display_Clear(); // Change working dir to root sd.chdir("/"); // get current time unsigned long startTime = millis(); // start reading from cart readROM_SNES(); // Internal Checksum compare_checksum(); // CRC32 compareCRC("snes.txt", 0, 1, 0); #ifdef global_log save_log(); #endif display_Update(); } else { display_Clear(); print_Error(F("Does not have ROM"), false); } } break; case 1: if (sramSize > 0) { display_Clear(); // Change working dir to root sd.chdir("/"); readSRAM(); } else { display_Clear(); print_Error(F("Does not have SRAM"), false); } break; case 2: if (sramSize > 0) { display_Clear(); // Change working dir to root sd.chdir("/"); writeSRAM(1); unsigned long wrErrors; wrErrors = verifySRAM(); if (wrErrors == 0) { println_Msg(F("Verified OK")); display_Update(); } else { print_Msg(F("Error: ")); print_Msg(wrErrors); println_Msg(F(" bytes ")); print_Error(F("did not verify."), false); } } else { display_Clear(); print_Error(F("Does not have SRAM"), false); } break; case 3: if (sramSize > 0) { display_Clear(); println_Msg(F("Warning:")); println_Msg(F("This can erase")); println_Msg(F("your save games")); println_Msg(F("")); println_Msg(F("")); println_Msg(F("Press any button to")); println_Msg(F("start sram testing")); display_Update(); wait(); display_Clear(); // Change working dir to root sd.chdir("/"); readSRAM(); eraseSRAM(0x00); eraseSRAM(0xFF); writeSRAM(0); unsigned long wrErrors = verifySRAM(); if (wrErrors == 0) { println_Msg(F("Restored OK")); display_Update(); } else { print_Msg(F("Error: ")); print_Msg(wrErrors); println_Msg(F(" bytes ")); print_Error(F("did not verify."), false); } } else { display_Clear(); print_Error(F("Does not have SRAM"), false); } break; case 4: // For arcademaster1 (Markfrizb) multi-game carts // Set reset pin to output (PH0) DDRH |= (1 << 0); // Switch RST(PH0) to LOW PORTH &= ~(1 << 0); // Note: It is probably not intended to reset CIC or clocks here // But if that's false, uncomment this: // stopSnesClocks_resetCic_resetCart(); display_Clear(); print_Msg(F("Resetting...")); display_Update(); delay(3000); // wait 3 secs to switch to next game resetArduino(); break; case 5: confMenuManual(); display_Clear(); display_Update(); break; case 6: stopSnesClocks_resetCic_resetCart(); resetArduino(); break; } //println_Msg(F("")); println_Msg(F("Press Button...")); display_Update(); wait(); } // Menu for manual configuration void confMenuManual() { // create menu with title and 5 options to choose from unsigned char subMenu; // Copy menuOptions out of progmem convertPgm(menuOptionsConfManual, 5); subMenu = question_box(F("Choose mapping"), menuOptions, 5, 0); // wait for user choice to come back from the question box menu switch (subMenu) { case 0: break; case 1: romType = LO; numBanks = 128; sramSize = 256; strcpy(romName, "LOROM"); break; case 2: romType = HI; numBanks = 64; sramSize = 64; strcpy(romName, "HIROM"); break; case 3: romType = EX; numBanks = 96; sramSize = 256; strcpy(romName, "EXROM"); break; case 4: // Reset stopSnesClocks_resetCic_resetCart(); resetArduino(); break; } } void stopSnesClocks_resetCic_resetCart() { DDRG |= (1 << 1); // Set cicrstPin(PG1) to Output PORTG |= (1 << 1); // pull high = reset CIC DDRH |= (1 << 0); // Set RST(PH0) pin to Output PORTH &= ~(1 << 0); // Switch RST(PH0) to LOW if (i2c_found) { clockgen.output_enable(SI5351_CLK1, 0); // CPU clock clockgen.output_enable(SI5351_CLK2, 0); // CIC clock clockgen.output_enable(SI5351_CLK0, 0); // master clock } } /****************************************** Setup *****************************************/ void setup_Snes() { // Set cicrstPin(PG1) to Output DDRG |= (1 << 1); // Output a high signal until we're ready to start PORTG |= (1 << 1); // Set cichstPin(PG0) to Input DDRG &= ~(1 << 0); // Set Address Pins to Output //A0-A7 DDRF = 0xFF; //A8-A15 DDRK = 0xFF; //BA0-BA7 DDRL = 0xFF; //PA0-PA7 DDRA = 0xFF; // Set Control Pins to Output RST(PH0) CS(PH3) WR(PH5) RD(PH6) DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6); // Switch RST(PH0) and WR(PH5) to HIGH PORTH |= (1 << 0) | (1 << 5); // Switch CS(PH3) and RD(PH6) to LOW PORTH &= ~((1 << 3) | (1 << 6)); // Set Refresh(PE5) to Output DDRE |= (1 << 5); // Switch Refresh(PE5) to LOW (needed for SA-1) PORTE &= ~(1 << 5); // Set CPU Clock(PH1) to Output DDRH |= (1 << 1); //PORTH &= ~(1 << 1); // Set IRQ(PH4) to Input DDRH &= ~(1 << 4); // Activate Internal Pullup Resistors //PORTH |= (1 << 4); // Set expand(PG5) to Input DDRG &= ~(1 << 5); // Activate Internal Pullup Resistors //PORTG |= (1 << 5); // Set Data Pins (D0-D7) to Input DDRC = 0x00; // Enable Internal Pullups //PORTC = 0xFF; // Unused pins // Set wram(PE4) to Output DDRE |= (1 << 4); //PORTE &= ~(1 << 4); // Set pawr(PJ1) to Output DDRJ |= (1 << 1); //PORTJ &= ~(1 << 1); // Set pard(PJ0) to Output DDRJ |= (1 << 0); //PORTJ &= ~(1 << 0); // Adafruit Clock Generator initializeClockOffset(); if (i2c_found) { // Set clocks to 4Mhz/1Mhz for better SA-1 unlocking clockgen.set_freq(100000000ULL, SI5351_CLK1); // CPU clockgen.set_freq(100000000ULL, SI5351_CLK2); // CIC clockgen.set_freq(400000000ULL, SI5351_CLK0); // EXT // Start outputting master clock, CIC clock clockgen.output_enable(SI5351_CLK1, 0); // no CPU clock yet; seems to affect SA-1 success a lot clockgen.output_enable(SI5351_CLK2, 1); // CIC clock (should go before master clock) clockgen.output_enable(SI5351_CLK0, 1); // master clock // Wait for clock generator clockgen.update_status(); delay(500); } #ifdef clockgen_installed else { display_Clear(); print_Error(F("Clock Generator not found"), true); } #endif // Start CIC by outputting a low signal to cicrstPin(PG1) PORTG &= ~(1 << 1); // Wait for CIC reset delay(500); // Print all the info getCartInfo_SNES(); if (i2c_found) { //Set clocks to standard or else SA-1 sram writing will fail clockgen.set_freq(2147727200ULL, SI5351_CLK0); clockgen.set_freq(357954500ULL, SI5351_CLK1); clockgen.set_freq(307200000ULL, SI5351_CLK2); } } /****************************************** I/O Functions *****************************************/ // Switch control pins to write void controlOut_SNES() { // Switch RD(PH6) and WR(PH5) to HIGH PORTH |= (1 << 6) | (1 << 5); // Switch CS(PH3) to LOW PORTH &= ~(1 << 3); } // Switch control pins to read void controlIn_SNES() { // Switch WR(PH5) to HIGH PORTH |= (1 << 5); // Switch CS(PH3) and RD(PH6) to LOW PORTH &= ~((1 << 3) | (1 << 6)); } /****************************************** Low level functions *****************************************/ // Write one byte of data to a location specified by bank and address, 00:0000 void writeBank_SNES(byte myBank, word myAddress, byte myData) { PORTL = myBank; PORTF = myAddress & 0xFF; PORTK = (myAddress >> 8) & 0xFF; PORTC = myData; // Arduino running at 16Mhz -> one nop = 62.5ns // Wait till output is stable __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"); // Switch WR(PH5) to LOW PORTH &= ~(1 << 5); // Leave WR low for at least 60ns __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""nop\n\t""nop\n\t""nop\n\t""nop\n\t"); // Switch WR(PH5) to HIGH PORTH |= (1 << 5); // 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""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"); } // Read one byte of data from a location specified by bank and address, 00:0000 byte readBank_SNES(byte myBank, word myAddress) { PORTL = myBank; PORTF = myAddress & 0xFF; PORTK = (myAddress >> 8) & 0xFF; // Wait for the Byte to appear on the data bus // Arduino running at 16Mhz -> one nop = 62.5ns // slowRom is good for 200ns, fastRom is <= 120ns; S-CPU best case read speed: 3.57MHz / 280ns // let's be conservative and use 6 x 62.5 = 375ns NOP; NOP; NOP; NOP; NOP; NOP; // Read byte tempByte = PINC; return tempByte; } void readLoRomBanks( unsigned int start, unsigned int total, FsFile *file) { byte buffer[1024] = { 0 }; uint16_t c = 0; uint16_t currByte = 32768; //Initialize progress bar uint32_t processedProgressBar = 0; uint32_t totalProgressBar = (uint32_t)(total - start) * 1024; draw_progressbar(0, totalProgressBar); for (int currBank = start; currBank < total; currBank++) { PORTL = currBank; // Blink led blinkLED(); currByte = 32768; while (1) { c = 0; while (c < 1024) { PORTF = (currByte & 0xFF); PORTK = ((currByte >> 8) & 0xFF); // Wait for the Byte to appear on the data bus // Arduino running at 16Mhz -> one nop = 62.5ns // slowRom is good for 200ns, fastRom is <= 120ns; S-CPU best case read speed: 3.57MHz / 280ns // let's be conservative and use 6 x 62.5 = 375ns NOP; NOP; NOP; NOP; NOP; NOP; buffer[c] = PINC; c++; currByte++; } file->write(buffer, 1024); // exit while(1) loop once the uint16_t currByte overflows from 0xffff to 0 (current bank is done) if (currByte == 0) break; } // update progress bar processedProgressBar += 1024; draw_progressbar(processedProgressBar, totalProgressBar); } } void readHiRomBanks( unsigned int start, unsigned int total, FsFile *file) { byte buffer[1024] = { 0 }; uint16_t c = 0; uint16_t currByte = 0; //Initialize progress bar uint32_t processedProgressBar = 0; uint32_t totalProgressBar = (uint32_t)(total - start) * 1024; draw_progressbar(0, totalProgressBar); for (int currBank = start; currBank < total; currBank++) { PORTL = currBank; // Blink led blinkLED(); currByte = 0; while (1) { c = 0; while (c < 1024) { PORTF = (currByte & 0xFF); PORTK = ((currByte >> 8) & 0xFF); // Wait for the Byte to appear on the data bus // Arduino running at 16Mhz -> one nop = 62.5ns // slowRom is good for 200ns, fastRom is <= 120ns; S-CPU best case read speed: 3.57MHz / 280ns // let's be conservative and use 6 x 62.5 = 375ns NOP; NOP; NOP; NOP; NOP; NOP; buffer[c] = PINC; c++; currByte++; } file->write(buffer, 1024); // exit while(1) loop once the uint16_t currByte overflows from 0xffff to 0 (current bank is done) if (currByte == 0) break; } // update progress bar processedProgressBar += 1024; draw_progressbar(processedProgressBar, totalProgressBar); } } /****************************************** SNES ROM Functions ******************************************/ void getCartInfo_SNES() { boolean manualConfig = 0; //Prime SA1 cartridge uint16_t c = 0; uint16_t currByte = 0; byte buffer[1024] = { 0 }; PORTL = 192; while (c < 1024) { PORTF = (currByte & 0xFF); PORTK = ((currByte >> 8) & 0xFF); // Wait for the Byte to appear on the data bus // Arduino running at 16Mhz -> one nop = 62.5ns // slowRom is good for 200ns, fastRom is <= 120ns; S-CPU best case read speed: 3.57MHz / 280ns // let's be conservative and use 6 x 62.5 = 375ns NOP; NOP; NOP; NOP; NOP; NOP; buffer[c] = PINC; c++; currByte++; } // Print start page if (checkcart_SNES() == 0) { // Checksum either corrupt or 0000 manualConfig = 1; errorLvl = 1; setColor_RGB(255, 0, 0); display_Clear(); println_Msg(F("ERROR")); println_Msg(F("Rom header corrupt")); println_Msg(F("or missing")); println_Msg(F("")); println_Msg(F("")); println_Msg(F("Press button for")); println_Msg(F("manual configuration")); println_Msg(F("or powercycle if SA1")); display_Update(); wait(); // Wait() clears errors but in this case we still have an error errorLvl = 1; } display_Clear(); print_Msg(F("Name: ")); println_Msg(romName); print_Msg(F("Type: ")); if (romType == HI) print_Msg(F("HiROM")); else if (romType == LO) print_Msg(F("LoROM")); else if (romType == EX) print_Msg(F("ExHiRom")); else print_Msg(romType); print_Msg(F(" ")); if (romSpeed == 0) println_Msg(F("SlowROM")); else if (romSpeed == 2) println_Msg(F("SlowROM")); else if (romSpeed == 3) println_Msg(F("FastROM")); else println_Msg(romSpeed); print_Msg(F("ICs: ROM ")); if (romChips == 0) println_Msg(F("ONLY")); else if (romChips == 1) println_Msg(F("RAM")); else if (romChips == 2) println_Msg(F("SAVE")); else if (romChips == 3) println_Msg(F("DSP1")); else if (romChips == 4) println_Msg(F("DSP1 RAM")); else if (romChips == 5) println_Msg(F("DSP1 SAVE")); else if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) println_Msg(F("SuperFX")); else if (romChips == 52) { println_Msg(F("SA1 RAM")); romType = SA; } else if (romChips == 53) { println_Msg(F("SA1 RAM BATT")); romType = SA; } else if (romChips == 67) { println_Msg(F("SDD1")); } else if (romChips == 69) { println_Msg(F("SDD1 BATT")); } else if (romChips == 227) println_Msg(F("RAM GBoy")); else if (romChips == 243) println_Msg(F("CX4")); else if (romChips == 246) println_Msg(F("DSP2")); else if (romChips == 245) println_Msg(F("SPC RAM BATT")); else if (romChips == 249) println_Msg(F("SPC RAM RTC")); else println_Msg(F("")); if (altconf) print_Msg(F("Rom Size: ")); else print_Msg(F("ROM Size: ")); print_Msg(romSize); println_Msg(F("Mbit")); print_Msg(F("Banks: ")); print_Msg(numBanks); print_Msg(F(" Chips: ")); println_Msg(romChips); print_Msg(F("Sram Size: ")); print_Msg(sramSize); println_Msg(F("Kbit")); print_Msg(F("ROM Version: 1.")); println_Msg(romVersion); print_Msg(F("Checksum: ")); println_Msg(checksumStr); display_Update(); // Wait for user input #if (defined(enable_LCD) || defined(enable_OLED)) println_Msg(F(" ")); println_Msg(F(" ")); println_Msg(F("Press Button...")); display_Update(); wait(); #endif #ifdef enable_serial println_Msg(F(" ")); #endif // Start manual config if (manualConfig == 1) { confMenuManual(); } } void checkAltConf(char crcStr[9]) { char tempStr2[5]; char tempStr3[9]; altconf = 0; if (myFile.open("snes.txt", O_READ)) { // Get cart info display_Clear(); print_Msg(F("Searching database...")); display_Update(); while (myFile.available()) { // Skip first line with name skip_line(&myFile); // Skip over the CRC checksum myFile.seekSet(myFile.curPosition() + 9); // Get internal ROM checksum as string for (byte j = 0; j < 4; j++) { tempStr2[j] = char(myFile.read()); } tempStr2[4] = '\0'; // Check if checksum string is a match else go to next entry in database if (strcmp(tempStr2, checksumStr) == 0) { print_Msg(F("...")); display_Update(); // Skip the , in the file myFile.seekSet(myFile.curPosition() + 1); // Read the CRC32 of the SNES header out of database for (byte k = 0; k < 8; k++) { tempStr3[k] = char(myFile.read()); } tempStr3[8] = '\0'; // Skip the , in the file myFile.seekSet(myFile.curPosition() + 1); // Read file size byte romSize2 = (myFile.read() - 48) * 10 + (myFile.read() - 48); // Skip the , in the file myFile.seekSet(myFile.curPosition() + 1); // Read number of banks byte numBanks2 = (myFile.read() - 48) * 100 + (myFile.read() - 48) * 10 + (myFile.read() - 48); // Some games have the same checksum, so compare CRC32 of header area with database too if (strcmp(tempStr3, crcStr) == 0) { println_Msg(F("")); println_Msg(F("Found")); display_Update(); // Game found, check if ROM sizes differ but only change ROM size if non- standard size found in database, else trust the header to be right and the database to be wrong if (((romSize != romSize2) || (numBanks != numBanks2)) && ((romSize2 == 10) || (romSize2 == 12) || (romSize2 == 20) || (romSize2 == 24) || (romSize2 == 48))) { // Correct size println_Msg(F("Correcting size")); print_Msg(F("Size: ")); print_Msg(romSize); print_Msg(F(" -> ")); print_Msg(romSize2); println_Msg(F("Mbit")); print_Msg(F("Banks: ")); print_Msg(numBanks); print_Msg(F(" -> ")); println_Msg(numBanks2); println_Msg(F("")); println_Msg(F("")); print_Msg(F("Header CRC: ")); println_Msg(crcStr); display_Update(); delay(1000); romSize = romSize2; numBanks = numBanks2; altconf = 1; } break; } } // If no match go to next entry else { // skip rest of line myFile.seekSet(myFile.curPosition() + 18); // skip third empty line skip_line(&myFile); } } // Close the file: myFile.close(); } } // Read header boolean checkcart_SNES() { // set control to read dataIn(); uint16_t c = 0; uint16_t headerStart = 0xFFB0; uint16_t currByte = headerStart; byte snesHeader[80] = { 0 }; PORTL = 0; while (c < 80) { PORTF = (currByte & 0xFF); PORTK = ((currByte >> 8) & 0xFF); NOP; NOP; NOP; NOP; NOP; NOP; NOP; NOP; NOP; NOP; NOP; NOP; snesHeader[c] = PINC; c++; currByte++; } // Calculate CRC32 of header uint32_t oldcrc32 = 0xFFFFFFFF; for (int c = 0; c < 80; c++) { oldcrc32 = updateCRC(snesHeader[c], oldcrc32); } char crcStr[9]; sprintf(crcStr, "%08lX", ~oldcrc32); // Get Checksum as string sprintf(checksumStr, "%02X%02X", snesHeader[0xFFDF - headerStart], snesHeader[0xFFDE - headerStart]); romType = snesHeader[0xFFD5 - headerStart]; if ((romType >> 5) != 1) { // Detect invalid romType byte due to too long ROM name (22 chars) romType = LO; // LoROM // Krusty's Super Fun House (U) 1.0 & Contra 3 (U) } else if (romType == 0x35) { romType = EX; // Check if ExHiROM } else if (romType == 0x3A) { romType = HI; // Check if SPC7110 } else { romType &= 1; // Must be LoROM or HiROM } // Check RomSpeed romSpeed = (snesHeader[0xFFD5 - headerStart] >> 4); // Check RomChips romChips = snesHeader[0xFFD6 - headerStart]; if (romChips == 69) { romSize = 48; numBanks = 96; romType = HI; } else if (romChips == 67) { romSize = 32; numBanks = 64; romType = HI; } else if (romChips == 243) { cx4Type = snesHeader[0xFFC9 - headerStart] & 0xF; if (cx4Type == 2) { // X2 romSize = 12; numBanks = 48; } else if (cx4Type == 3) { // X3 romSize = 16; numBanks = 64; } } else if ((romChips == 245) && (romType == HI)) { romSize = 24; numBanks = 48; } else if ((romChips == 249) && (romType == HI)) { romSize = 40; numBanks = 80; } else { // Check RomSize byte romSizeExp = snesHeader[0xFFD7 - headerStart] - 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, pass CRC32 of snesHeader but filter out 0000 and FFFF checksums if (!(strcmp(checksumStr, "0000") == 0) && !(strcmp(checksumStr, "FFFF") == 0)) { checkAltConf(crcStr); } // Get name byte myByte = 0; byte myLength = 0; for (unsigned int i = 0xFFC0; i < 0xFFD4; i++) { myByte = snesHeader[i - headerStart]; if (isprint(myByte) && myByte != '<' && myByte != '>' && myByte != ':' && myByte != '"' && myByte != '/' && myByte != '\\' && myByte != '|' && myByte != '?' && myByte != '*') { romName[myLength] = char(myByte); } else { if (romName[myLength - 1] == 0x5F) myLength--; romName[myLength] = 0x5F; } myLength++; } // Strip trailing white space for (unsigned int i = myLength - 1; i > 0; i--) { if ((romName[i] != 0x5F) && (romName[i] != 0x20)) break; romName[i] = 0x00; myLength--; } // If name consists out of all japanese characters use game code if (myLength == 0) { // Get rom code romName[0] = 'S'; romName[1] = 'H'; romName[2] = 'V'; romName[3] = 'C'; romName[4] = '-'; for (unsigned int i = 0; i < 4; i++) { myByte = snesHeader[0xFFB2 + i - headerStart]; if (((char(myByte) >= 48 && char(myByte) <= 57) || (char(myByte) >= 65 && char(myByte) <= 122)) && myLength < 4) { romName[myLength + 5] = char(myByte); myLength++; } } if (myLength == 0) { // Rom code unknown romName[0] = 'U'; romName[1] = 'N'; romName[2] = 'K'; romName[3] = 'N'; romName[4] = 'O'; romName[5] = 'W'; romName[6] = 'N'; } } // Read sramSizeExp byte sramSizeExp; if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) { // SuperFX if (snesHeader[0x7FDA - headerStart] == 0x33) { sramSizeExp = snesHeader[0x7FBD - headerStart]; } else { if (strncmp(romName, "STARFOX2", 8) == 0) { sramSizeExp = 6; } else { sramSizeExp = 5; } } } else { // No SuperFX sramSizeExp = snesHeader[0xFFD8 - headerStart]; } // Calculate sramSize // Fail states usually have sramSizeExp at 255 (no cart inserted, SA-1 failure, etc) if (sramSizeExp != 0 && sramSizeExp != 255) { sramSizeExp = sramSizeExp + 3; sramSize = 1; while (sramSizeExp--) sramSize *= 2; } else { sramSize = 0; } // Check Cart Country //int cartCountry = snesHeader[0xFFD9 - headerStart]; // ROM Version romVersion = snesHeader[0xFFDB - headerStart]; // Test if checksum is equal to reverse checksum if (((word(snesHeader[0xFFDC - headerStart]) + (word(snesHeader[0xFFDD - headerStart]) * 256)) + (word(snesHeader[0xFFDE - headerStart]) + (word(snesHeader[0xFFDF - headerStart]) * 256))) == 65535 ) { if (strcmp("0000", checksumStr) == 0) { return 0; } else { return 1; } } // Either rom checksum is wrong or no cart is inserted else { 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 == 10) || (calcFilesize == 12) || (calcFilesize == 20) || (calcFilesize == 24)) { unsigned long calcBase = 0; unsigned long calcMirror = 0; byte calcMirrorCount = 0; if (calcFilesize > 16) calcBase = 2097152; else calcBase = 1048576; calcMirror = myFile.fileSize() - calcBase; calcMirrorCount = calcBase / calcMirror; // Momotarou Dentetsu Happy Fix 3MB (24Mbit) if ((calcFilesize == 24) && (romChips == 245)) { 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 { // Base 8/16 Mbit chunk for (j = 0; j < (calcBase / 512); j++) { myFile.read(sdBuffer, 512); for (c = 0; c < 512; c++) { calcChecksumChunk += sdBuffer[c]; } } calcChecksum = calcChecksumChunk; calcChecksumChunk = 0; // Add the mirrored chunk for (j = 0; j < (calcMirror / 512); j++) { myFile.read(sdBuffer, 512); for (c = 0; c < 512; c++) { calcChecksumChunk += sdBuffer[c]; } } calcChecksum += calcMirrorCount * 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 { // Else show error print_Error(F("DUMP ROM 1ST"), false); return 0; } } boolean compare_checksum() { print_Msg(F("Checksum...")); display_Update(); strcpy(fileName, romName); strcat(fileName, ".sfc"); // last used rom folder EEPROM_readAnything(0, foldern); sprintf(folder, "SNES/ROM/%s/%d", romName, foldern - 1); char calcsumStr[5]; sprintf(calcsumStr, "%04X", calc_checksum(fileName, folder)); if (strcmp(calcsumStr, checksumStr) == 0) { println_Msg(F("OK")); //println_Msg(calcsumStr); display_Update(); return 1; } else { print_Msg(F("Error ")); print_Msg(calcsumStr); print_Error(F(" "), 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, "SNES/ROM/%s/%d", romName, foldern); sd.mkdir(folder, true); sd.chdir(folder); //clear the screen 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("Can't create file on SD"), true); } //Dump Derby Stallion '96 (Japan) Actual Size is 24Mb if ((romType == LO) && (numBanks == 128) && (strcmp("CC86", checksumStr) == 0)) { // Read Banks 0x00-0x3F for the 1st/2nd MB for (int currBank = 0; currBank < 64; currBank++) { // Dump the bytes to SD 512B at a time for (long currByte = 32768; currByte < 65536; currByte += 512) { for (int c = 0; c < 512; c++) { sdBuffer[c] = readBank_SNES(currBank, currByte + c); } myFile.write(sdBuffer, 512); } } //Read Bank 0x80-9F for the 3rd MB for (int currBank = 128; currBank < 160; currBank++) { // Dump the bytes to SD 512B at a time for (long currByte = 32768; currByte < 65536; currByte += 512) { for (int c = 0; c < 512; c++) { sdBuffer[c] = readBank_SNES(currBank, currByte + c); } myFile.write(sdBuffer, 512); } } } //Dump Low-type ROM else if (romType == LO) { if (romChips == 243) { //0xF3 cx4Map = readBank_SNES(0, 32594); //0x7F52 if ((cx4Type == 2) && (cx4Map != 0)) { //X2 dataOut(); controlOut_SNES(); writeBank_SNES(0, 32594, 0); // Set 0x7F52 to 0 dataIn(); controlIn_SNES(); } else if ((cx4Type == 3) && (cx4Map == 0)) { //X3 dataOut(); controlOut_SNES(); writeBank_SNES(0, 32594, 1); // Set 0x7F52 to 1 dataIn(); controlIn_SNES(); } } if (romSize > 24) { // ROM > 96 banks (up to 128 banks) readLoRomBanks( 0x80, numBanks + 0x80, &myFile ); } else { // Read up to 96 banks starting at bank 0×00. readLoRomBanks( 0, numBanks, &myFile ); } if (romChips == 243) { //0xF3 // Restore CX4 Mapping Register dataOut(); controlOut_SNES(); writeBank_SNES(0, 32594, cx4Map); // 0x7F52 dataIn(); controlIn_SNES(); } } // Dump SDD1 High-type ROM else if ((romType == HI) && (romChips == 69 || romChips == 67)) { println_Msg(F("Dumping SDD1 HiRom")); display_Update(); controlIn_SNES(); byte initialSOMap = readBank_SNES(0, 18439); for (int currMemmap = 0; currMemmap < (numBanks / 16); currMemmap++) { dataOut(); controlOut_SNES(); writeBank_SNES(0, 18439, currMemmap); dataIn(); controlIn_SNES(); readHiRomBanks( 240, 256, &myFile ); if (currMemmap == 2) display_Clear(); // need more space for the progress bars } dataOut(); controlOut_SNES(); writeBank_SNES(0, 18439, initialSOMap); dataIn(); controlIn_SNES(); } // Dump SPC7110 High-type ROM else if ((romType == HI) && ((romChips == 245) || (romChips == 249))) { println_Msg(F("Dumping SPC7110 HiRom")); display_Update(); // 0xC00000-0xDFFFFF //print_Msg(F("Part 1")); display_Update(); readHiRomBanks( 192, 224, &myFile ); if (numBanks > 32) { dataOut(); controlOut_SNES(); // Set 0x4834 to 0xFF writeBank_SNES( 0, 0x4834, 0xFF ); dataIn(); controlIn_SNES(); // 0xE00000-0xEFFFFF //print_Msg(F(" 2")); display_Update(); readHiRomBanks( 224, 240, &myFile ); if (numBanks > 48) { // 0xF00000-0xFFFFFF //print_Msg(F(" 3")); display_Update(); readHiRomBanks( 240, 256, &myFile ); dataOut(); controlOut_SNES(); // Set 0x4833 to 3 writeBank_SNES( 0, 0x4833, 3 ); dataIn(); controlIn_SNES(); // 0xF00000-0xFFFFFF //print_Msg(F(" 4")); display_Update(); readHiRomBanks( 240, 256, &myFile ); } //println_Msg(F("")); display_Clear(); // need more space due to the 4 progress bars // Return mapping registers to initial settings... dataOut(); controlOut_SNES(); writeBank_SNES( 0, 0x4833, 2 ); writeBank_SNES( 0, 0x4834, 0 ); dataIn(); controlIn_SNES(); } } // Dump standard High-type ROM else if ((romType == HI) || (romType == SA) || (romType == EX)) { println_Msg(F("Dumping HiRom...")); display_Update(); readHiRomBanks( 192, numBanks + 192, &myFile ); } // Close the file: myFile.close(); } /****************************************** SNES SRAM Functions *****************************************/ // Write file to SRAM void writeSRAM (boolean browseFile) { if (browseFile) { filePath[0] = '\0'; sd.chdir("/"); fileBrowser(F("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(); int sramBanks = 0; // LoRom if (romType == LO) { // Sram size long lastByte = (long(sramSize) * 128); if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) { // SuperFX if (lastByte > 0x10000) { // Large SuperFX SRAM (no known carts) sramBanks = lastByte / 0x10000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0x0000; currByte < 0x10000; currByte++) { writeBank_SNES(currBank, currByte, myFile.read()); } } } else { // SuperFX SRAM for (long currByte = 0; currByte < lastByte; currByte++) { writeBank_SNES(0x70, currByte, myFile.read()); } } } else if (lastByte > 0x8000) { // Large SRAM Fix sramBanks = lastByte / 0x8000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0x0000; currByte < 0x8000; currByte++) { writeBank_SNES(currBank, currByte, myFile.read()); } } } else { for (long currByte = 0; currByte < lastByte; currByte++) { writeBank_SNES(0x70, currByte, myFile.read()); } } } // HiRom else if (romType == HI) { if ((romChips == 245) || (romChips == 249)) { // SPC7110 SRAM // Configure SPC7110 SRAM Register // Set 0x4830 to 0x80 writeBank_SNES(0, 0x4830, 0x80); // Sram size long lastByte = (long(sramSize) * 128) + 0x6000; // Write to sram bank for (long currByte = 0x6000; currByte < lastByte; currByte++) { writeBank_SNES(0x30, currByte, myFile.read()); } // Reset SPC7110 SRAM Register dataOut(); // Reset 0x4830 to 0x0 writeBank_SNES(0, 0x4830, 0); dataIn(); } else { // Writing SRAM on HiRom needs CS(PH3) to be high PORTH |= (1 << 3); // Sram size long lastByte = (long(sramSize) * 128); if (lastByte > 0x2000) { // Large SRAM Fix sramBanks = lastByte / 0x2000; for (int currBank = 0x30; currBank < sramBanks + 0x30; currBank++) { for (long currByte = 0x6000; currByte < 0x8000; currByte++) { writeBank_SNES(currBank, currByte, myFile.read()); } } } else { lastByte += 0x6000; // Write to sram bank 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) { long lastByte = (long(sramSize) * 128); if (i2c_found) { // Enable CPU Clock clockgen.output_enable(SI5351_CLK1, 1); } // Direct writes to BW-RAM (SRAM) in banks 0x40-0x43 don't work // Break BW-RAM (SRAM) into 0x2000 blocks byte lastBlock = 0; lastBlock = lastByte / 0x2000; // Writing SRAM on SA1 needs CS(PH3) to be high // PORTH |= (1 << 3); // Setup BW-RAM // Set 0x2224 (SNES BMAPS) to map SRAM Block 0 to 0x6000-0x7FFF writeBank_SNES(0, 0x2224, 0); // Set 0x2226 (SNES SBWE) to 0x80 Write Enable writeBank_SNES(0, 0x2226, 0x80); // Set 0x2228 (SNES BWPA) to 0x00 BW-RAM Write-Protected Area writeBank_SNES(0, 0x2228, 0); delay(1000); // Use $2224 (SNES) to map BW-RAM block to 0x6000-0x7FFF // Use $2226 (SNES) to write enable the BW-RAM byte firstByte = 0; for (byte currBlock = 0; currBlock < lastBlock; currBlock++) { // Set 0x2224 (SNES BMAPS) to map SRAM Block to 0x6000-0x7FFF writeBank_SNES(0, 0x2224, currBlock); // Set 0x2226 (SNES SBWE) to 0x80 Write Enable writeBank_SNES(0, 0x2226, 0x80); for (long currByte = 0x6000; currByte < 0x8000; currByte += 512) { myFile.read(sdBuffer, 512); if ((currBlock == 0) && (currByte == 0x6000)) { firstByte = sdBuffer[0]; } for (int c = 0; c < 512; c++) { writeBank_SNES(0, currByte + c, sdBuffer[c]); } } } // Rewrite First Byte writeBank_SNES(0, 0x2224, 0); writeBank_SNES(0, 0x2226, 0x80); writeBank_SNES(0, 0x6000, firstByte); if (i2c_found) { // Disable CPU clock clockgen.output_enable(SI5351_CLK1, 0); } } // 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, "SNES/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); } int sramBanks = 0; if (romType == LO) { // Sram size long lastByte = (long(sramSize) * 128); if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) { // SuperFX if (lastByte > 0x10000) { // Large SuperFX SRAM (no known carts) sramBanks = lastByte / 0x10000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0x0000; currByte < 0x10000; currByte++) { myFile.write(readBank_SNES(currBank, currByte)); } } } else { // SuperFX SRAM for (long currByte = 0; currByte < lastByte; currByte++) { myFile.write(readBank_SNES(0x70, currByte)); } } } else if (lastByte > 0x8000) { // Large SRAM Fix sramBanks = lastByte / 0x8000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0x0000; currByte < 0x8000; currByte++) { myFile.write(readBank_SNES(currBank, currByte)); } } } else { for (long currByte = 0; currByte < lastByte; currByte++) { myFile.write(readBank_SNES(0x70, currByte)); } } } else if (romType == HI) { if ((romChips == 245) || (romChips == 249)) { // SPC7110 SRAM // Configure SPC7110 SRAM Register dataOut(); // Set 0x4830 to 0x80 writeBank_SNES(0, 0x4830, 0x80); dataIn(); // Sram size long lastByte = (long(sramSize) * 128) + 0x6000; for (long currByte = 0x6000; currByte < lastByte; currByte++) { myFile.write(readBank_SNES(0x30, currByte)); } dataOut(); // Reset 0x4830 to 0x0 writeBank_SNES(0, 0x4830, 0); dataIn(); } else { // Dumping SRAM on HiRom needs CS(PH3) to be high PORTH |= (1 << 3); // Sram size long lastByte = (long(sramSize) * 128); if (lastByte > 0x2000) { // Large SRAM Fix sramBanks = lastByte / 0x2000; for (int currBank = 0x30; currBank < sramBanks + 0x30; currBank++) { for (long currByte = 0x6000; currByte < 0x8000; currByte++) { myFile.write(readBank_SNES(currBank, currByte)); } } } else { lastByte += 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); if (lastByte > 0x10000) { sramBanks = lastByte / 0x10000; for (int currBank = 0x40; currBank < sramBanks + 0x40; currBank++) { for (long currByte = 0; currByte < 0x10000; currByte++) { myFile.write(readBank_SNES(currBank, currByte)); } } } else { for (long currByte = 0x0; currByte < lastByte; currByte++) { myFile.write(readBank_SNES(0x40, currByte)); } } } // Close the file: myFile.close(); // Signal end of process display_Clear(); print_Msg(F("Saved to ")); print_Msg(folder); println_Msg(F("/...")); 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(); int sramBanks = 0; if (romType == LO) { // Sram size long lastByte = (long(sramSize) * 128); if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) { // SuperFX if (lastByte > 0x10000) { // Large SuperFX SRAM (no known carts) sramBanks = lastByte / 0x10000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0; currByte < 0x10000; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } } } else { // SuperFX SRAM for (long currByte = 0; currByte < lastByte; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x70, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } } } else if (lastByte > 0x8000) { // Large SRAM Fix sramBanks = lastByte / 0x8000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0; currByte < 0x8000; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } } } else { for (long currByte = 0; currByte < lastByte; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x70, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } } } else if (romType == HI) { if ((romChips == 245) || (romChips == 249)) { // SPC7110 SRAM // Configure SPC7110 SRAM Register dataOut(); // Set 0x4830 to 0x80 writeBank_SNES(0, 0x4830, 0x80); dataIn(); // Sram size long lastByte = (long(sramSize) * 128) + 0x6000; for (long currByte = 0x6000; currByte < lastByte; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x30, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } dataOut(); // Reset 0x4830 to 0x0 writeBank_SNES(0, 0x4830, 0); dataIn(); } else { // Dumping SRAM on HiRom needs CS(PH3) to be high PORTH |= (1 << 3); // Sram size long lastByte = (long(sramSize) * 128); if (lastByte > 0x2000) { // Large SRAM Fix sramBanks = lastByte / 0x2000; for (int currBank = 0x30; currBank < sramBanks + 0x30; currBank++) { for (long currByte = 0x6000; currByte < 0x8000; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } } } else { lastByte += 0x6000; for (long currByte = 0x6000; currByte < lastByte; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int 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 (int 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); if (lastByte > 0x10000) { sramBanks = lastByte / 0x10000; for (int currBank = 0x40; currBank < sramBanks + 0x40; currBank++) { for (long currByte = 0x0; currByte < 0x10000; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } } } else { for (long currByte = 0x0; currByte < lastByte; currByte += 512) { //fill sdBuffer myFile.read(sdBuffer, 512); for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x40, currByte + c)) != sdBuffer[c]) { writeErrors++; } } } } // Reset SA1 // Set pins to input dataIn(); // Close the file: myFile.close(); if (writeErrors == 0) { println_Msg(F("Verified OK")); } else { print_Msg(F("Error: ")); print_Msg(writeErrors); println_Msg(F(" bytes ")); print_Error(F("did not verify."), false); } display_Update(); wait(); stopSnesClocks_resetCic_resetCart(); display_Clear(); print_Msg(F("Resetting...")); display_Update(); delay(3000); // wait 3 secs resetArduino(); } // 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(); int sramBanks = 0; if (romType == LO) { // Sram size long lastByte = (long(sramSize) * 128); if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) { // SuperFX if (lastByte > 0x10000) { // Large SuperFX SRAM (no known carts) sramBanks = lastByte / 0x10000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0x0000; currByte < 0x10000; currByte++) { writeBank_SNES(currBank, currByte, b); } } } else { // SuperFX SRAM for (long currByte = 0; currByte < lastByte; currByte++) { writeBank_SNES(0x70, currByte, b); } } } else if (lastByte > 0x8000) { // Large SRAM Fix sramBanks = lastByte / 0x8000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0x0000; currByte < 0x8000; currByte++) { writeBank_SNES(currBank, currByte, b); } } } else { for (long currByte = 0; currByte < lastByte; currByte++) { writeBank_SNES(0x70, currByte, b); } } } else if (romType == HI) { if ((romChips == 245) || (romChips == 249)) { // SPC7110 SRAM // Configure SPC7110 SRAM Register // Set 0x4830 to 0x80 writeBank_SNES(0, 0x4830, 0x80); // Sram size long lastByte = (long(sramSize) * 128) + 0x6000; // Write to sram bank for (long currByte = 0x6000; currByte < lastByte; currByte++) { writeBank_SNES(0x30, currByte, b); } // Reset SPC7110 SRAM Register dataOut(); // Reset 0x4830 to 0x0 writeBank_SNES(0, 0x4830, 0); dataIn(); } else { // Writing SRAM on HiRom needs CS(PH3) to be high PORTH |= (1 << 3); // Sram size long lastByte = (long(sramSize) * 128); if (lastByte > 0x2000) { // Large SRAM Fix sramBanks = lastByte / 0x2000; for (int currBank = 0x30; currBank < sramBanks + 0x30; currBank++) { for (long currByte = 0x6000; currByte < 0x8000; currByte++) { writeBank_SNES(currBank, currByte, b); } } } else { lastByte += 0x6000; // Write to sram bank 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); } } // SA1 else if (romType == SA) { long lastByte = (long(sramSize) * 128); if (i2c_found) { // Enable CPU Clock clockgen.output_enable(SI5351_CLK1, 1); } // Direct writes to BW-RAM (SRAM) in banks 0x40-0x43 don't work // Break BW-RAM (SRAM) into 0x2000 blocks // Use $2224 to map BW-RAM block to 0x6000-0x7FFF byte lastBlock = 0; lastBlock = lastByte / 0x2000; // Writing SRAM on SA1 needs CS(PH3) to be high // PORTH |= (1 << 3); // Setup BW-RAM // Set 0x2224 (SNES BMAPS) to map SRAM Block 0 to 0x6000-0x7FFF writeBank_SNES(0, 0x2224, 0); // Set 0x2226 (SNES SBWE) to 0x80 Write Enable writeBank_SNES(0, 0x2226, 0x80); // Set 0x2228 (SNES BWPA) to 0x00 BW-RAM Write-Protected Area writeBank_SNES(0, 0x2228, 0); delay(1000); // Use $2224 (SNES) to map BW-RAM block to 0x6000-0x7FFF // Use $2226 (SNES) to write enable the BW-RAM for (byte currBlock = 0; currBlock < lastBlock; currBlock++) { // Set 0x2224 (SNES BMAPS) to map SRAM Block to 0x6000-0x7FFF writeBank_SNES(0, 0x2224, currBlock); // Set 0x2226 (SNES SBWE) to 0x80 Write Enable writeBank_SNES(0, 0x2226, 0x80); for (long currByte = 0x6000; currByte < 0x8000; currByte += 512) { for (int c = 0; c < 512; c++) { writeBank_SNES(0, currByte + c, b); } } } // Rewrite First Byte writeBank_SNES(0, 0x2224, 0); writeBank_SNES(0, 0x2226, 0x80); writeBank_SNES(0, 0x6000, b); if (i2c_found) { // Disable CPU clock clockgen.output_enable(SI5351_CLK1, 0); } } dataIn(); // Variable for errors writeErrors = 0; // Set control controlIn_SNES(); sramBanks = 0; if (romType == LO) { // Sram size long lastByte = (long(sramSize) * 128); if ((romChips == 19) || (romChips == 20) || (romChips == 21) || (romChips == 26)) { // SuperFX if (lastByte > 0x10000) { // Large SuperFX SRAM (no known carts) sramBanks = lastByte / 0x10000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0; currByte < 0x10000; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != b) { writeErrors++; } } } } } else { // SuperFX SRAM for (long currByte = 0; currByte < lastByte; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x70, currByte + c)) != b) { writeErrors++; } } } } } else if (lastByte > 0x8000) { // Large SRAM Fix sramBanks = lastByte / 0x8000; for (int currBank = 0x70; currBank < sramBanks + 0x70; currBank++) { for (long currByte = 0; currByte < 0x8000; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != b) { writeErrors++; } } } } } else { for (long currByte = 0; currByte < lastByte; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x70, currByte + c)) != b) { writeErrors++; } } } } } else if (romType == HI) { if ((romChips == 245) || (romChips == 249)) { // SPC7110 SRAM // Configure SPC7110 SRAM Register dataOut(); // Set 0x4830 to 0x80 writeBank_SNES(0, 0x4830, 0x80); dataIn(); // Sram size long lastByte = (long(sramSize) * 128) + 0x6000; for (long currByte = 0x6000; currByte < lastByte; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x30, currByte + c)) != b) { writeErrors++; } } } dataOut(); // Reset 0x4830 to 0x0 writeBank_SNES(0, 0x4830, 0); dataIn(); } else { // Dumping SRAM on HiRom needs CS(PH3) to be high PORTH |= (1 << 3); // Sram size long lastByte = (long(sramSize) * 128); if (lastByte > 0x2000) { // Large SRAM Fix sramBanks = lastByte / 0x2000; for (int currBank = 0x30; currBank < sramBanks + 0x30; currBank++) { for (long currByte = 0x6000; currByte < 0x8000; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != b) { writeErrors++; } } } } } else { lastByte += 0x6000; for (long currByte = 0x6000; currByte < lastByte; currByte += 512) { for (int 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 (int c = 0; c < 512; c++) { if ((readBank_SNES(0xB0, currByte + c)) != b) { 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); if (lastByte > 0x10000) { sramBanks = lastByte / 0x10000; for (int currBank = 0x40; currBank < sramBanks + 0x40; currBank++) { for (long currByte = 0x0; currByte < 0x10000; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(currBank, currByte + c)) != b) { writeErrors++; } } } } } else { for (long currByte = 0x0; currByte < lastByte; currByte += 512) { for (int c = 0; c < 512; c++) { if ((readBank_SNES(0x40, currByte + c)) != b) { writeErrors++; } } } } } if (writeErrors == 0) { println_Msg(F("OK")); return 1; } else { println_Msg(F("ERROR")); return 0; } display_Update(); } #endif //****************************************** // End of File //******************************************