//****************************************** // NES MODULE //****************************************** // unfinished and untested // mostly copy&pasted from "Famicom Dumper" 2019-08-31 by skaman // also based on "CoolArduino" by HardWareMan // Pinout changes: LED and CIRAM_A10 //Line Content //25 Supported Mappers //99 Defines //129 Variables //180 Menu //265 Setup //294 Low Level Functions //541 CRC Functions //596 File Functions //758 Config Functions //1252 ROM Functions //2332 RAM Functions //2614 Eeprom Functions /****************************************** Supported Mappers *****************************************/ // Supported Mapper Array (iNES Mapper #s) // Format = {mapper,prglo,prghi,chrlo,chrhi,ramlo,ramhi} static const byte PROGMEM mapsize [] = { 0, 0, 1, 0, 1, 0, 0, // nrom 1, 1, 5, 0, 5, 0, 3, // mmc1 [sram r/w] 2, 3, 4, 0, 0, 0, 0, // uxrom 3, 0, 1, 0, 3, 0, 0, // cnrom 4, 1, 5, 0, 6, 0, 1, // mmc3 [sram r/w] 5, 3, 5, 5, 7, 0, 3, // mmc5 [sram r/w] 7, 3, 4, 0, 0, 0, 0, // axrom 9, 3, 3, 5, 5, 0, 0, // mmc2 (punch out) 10, 3, 4, 4, 5, 1, 1, // mmc4 [sram r/w] 13, 1, 1, 0, 0, 0, 0, // cprom (videomation) 16, 3, 4, 5, 6, 0, 1, // bandai x24c02 [eep r/w] 18, 3, 4, 5, 6, 0, 1, // jaleco ss8806 [sram r/w] 19, 3, 4, 5, 6, 0, 1, // namco 106/163 [sram r/w] 21, 4, 4, 5, 6, 0, 1, // vrc4a/vrc4c [sram r/w] 22, 3, 3, 5, 5, 0, 0, // vrc2a 23, 3, 3, 5, 6, 0, 0, // vrc2b/vrc4e 24, 4, 4, 5, 5, 0, 0, // vrc6a (akumajou densetsu) 25, 3, 4, 5, 6, 0, 1, // vrc2c/vrc4b/vrc4d [sram r/w] 26, 4, 4, 5, 6, 1, 1, // vrc6b [sram r/w] 32, 3, 4, 5, 5, 0, 0, // irem g-101 33, 3, 4, 5, 6, 0, 0, // taito tc0190 34, 3, 3, 0, 0, 0, 0, // bnrom [nina-1 NOT SUPPORTED] 37, 4, 4, 6, 6, 0, 0, // (super mario bros + tetris + world cup) 47, 4, 4, 6, 6, 0, 0, // (super spike vball + world cup) 48, 3, 4, 6, 6, 0, 0, // taito tc0690 65, 3, 4, 5, 6, 0, 0, // irem h-3001 66, 2, 3, 2, 3, 0, 0, // gxrom/mhrom 67, 3, 3, 5, 5, 0, 0, // sunsoft 3 68, 3, 3, 5, 6, 0, 1, // sunsoft 4 [sram r/w] 69, 3, 4, 5, 6, 0, 1, // sunsoft fme-7/5a/5b [sram r/w] 70, 3, 3, 5, 5, 0, 0, // bandai 71, 2, 4, 0, 0, 0, 0, // camerica/codemasters [UNLICENSED] 72, 3, 3, 5, 5, 0, 0, // jaleco jf-17 73, 3, 3, 0, 0, 0, 0, // vrc3 (salamander) 75, 3, 3, 5, 5, 0, 0, // vrc1 76, 3, 3, 5, 5, 0, 0, // namco 109 variant (megami tensei: digital devil story) 77, 3, 3, 3, 3, 0, 0, // (napoleon senki) 78, 3, 3, 5, 5, 0, 0, // irem 74hc161/32 80, 3, 3, 5, 6, 0, 0, // taito x1-005 82, 3, 3, 5, 6, 0, 0, // taito x1-017 85, 3, 5, 0, 5, 0, 1, // vrc7 [sram r/w] 86, 3, 3, 4, 4, 0, 0, // jaleco jf-13 (moero pro yakyuu) 87, 0, 1, 2, 3, 0, 0, 88, 3, 3, 5, 5, 0, 0, // namco (dxrom variant) 89, 3, 3, 5, 5, 0, 0, // sunsoft 2 variant (tenka no goikenban: mito koumon) 92, 4, 4, 5, 5, 0, 0, // jaleco jf-19/jf-21 93, 3, 3, 0, 0, 0, 0, // sunsoft 2 94, 3, 3, 0, 0, 0, 0, // hvc-un1rom (senjou no ookami) 95, 3, 3, 3, 3, 0, 0, // namcot-3425 (dragon buster) 96, 3, 3, 0, 0, 0, 0, // (oeka kids) 97, 4, 4, 0, 0, 0, 0, // irem tam-s1 (kaiketsu yanchamaru) 105, 4, 4, 0, 0, 0, 0, // (nintendo world Championships 1990) [UNTESTED] 118, 3, 4, 5, 5, 0, 1, // txsrom/mmc3 [sram r/w] 119, 3, 3, 4, 4, 0, 0, // tqrom/mmc3 140, 3, 3, 3, 5, 0, 0, // jaleco jf-11/jf-14 152, 2, 3, 5, 5, 0, 0, 153, 5, 5, 0, 0, 1, 1, // (famicom jump ii) [sram r/w] 154, 3, 3, 5, 5, 0, 0, // namcot-3453 (devil man) 155, 3, 3, 3, 5, 0, 1, // mmc1 variant [sram r/w] 159, 3, 4, 5, 6, 1, 1, // bandai x24c01 [eep r/w] 180, 3, 3, 0, 0, 0, 0, // unrom variant (crazy climber) 184, 1, 1, 2, 3, 0, 0, // sunsoft 1 185, 0, 1, 1, 1, 0, 0, // cnrom lockout 206, 1, 3, 2, 4, 0, 0, // dxrom 207, 4, 4, 5, 5, 0, 0, // taito x1-005 variant (fudou myouou den) 210, 3, 5, 5, 6, 0, 0, // namco 175/340 }; /****************************************** Defines *****************************************/ #define ROMSEL_HI PORTF |= (1<<1) #define ROMSEL_LOW PORTF &= ~(1<<1) #define PHI2_HI PORTF |= (1<<0) #define PHI2_LOW PORTF &= ~(1<<0) #define PRG_READ PORTF |= (1<<7) #define PRG_WRITE PORTF &= ~(1<<7) #define CHR_READ_HI PORTF |= (1<<5) #define CHR_READ_LOW PORTF &= ~(1<<5) #define CHR_WRITE_HI PORTF |= (1<<2) #define CHR_WRITE_LOW PORTF &= ~(1<<2) // RGB LED COMMON ANODE #define LED_RED_OFF PORTB |= (1<<6) #define LED_RED_ON PORTB &= ~(1<<6) #define LED_GREEN_OFF PORTB |= (1<<5) #define LED_GREEN_ON PORTB &= ~(1<<5) #define LED_BLUE_OFF PORTB |= (1<<4) #define LED_BLUE_ON PORTB &= ~(1<<4) #define MODE_READ { PORTK = 0xFF; DDRK = 0; } #define MODE_WRITE DDRK = 0xFF #define press 1 #define doubleclick 2 #define hold 3 #define longhold 4 /****************************************** Variables *****************************************/ // Mapper byte mapcount = (sizeof(mapsize) / sizeof(mapsize[0])) / 7; boolean mapfound = false; byte mapselect; int PRG[] = {16, 32, 64, 128, 256, 512}; byte prglo = 0; // Lowest Entry byte prghi = 5; // Highest Entry int CHR[] = {0, 8, 16, 32, 64, 128, 256, 512}; byte chrlo = 0; // Lowest Entry byte chrhi = 7; // Highest Entry byte RAM[] = {0, 8, 16, 32}; byte ramlo = 0; // Lowest Entry byte ramhi = 3; // Highest Entry int banks; int prg; int chr; byte ram; boolean vrc4e = false; byte prgchk0; byte prgchk1; int eepsize; byte bytecheck; // Files File sdFile; char fileCount[3]; File nesFile; char filePRG[] = "PRG.bin"; char fileCHR[] = "CHR.bin"; char fileNES[] = "CART.nes"; // Cartridge Config byte mapper; byte newmapper; byte prgsize; byte newprgsize; byte chrsize; byte newchrsize; byte ramsize; byte newramsize; // Button int b = 0; /****************************************** Menu *****************************************/ static const char menuItem1[] PROGMEM = "Select Mapper"; static const char menuItem2[] PROGMEM = "Read Complete Cart"; static const char menuItem3[] PROGMEM = "Read PRG"; static const char menuItem4[] PROGMEM = "Read CHR"; static const char menuItem5[] PROGMEM = "Read RAM"; static const char menuItem6[] PROGMEM = "Write RAM"; static const char* const baseMenu[] PROGMEM = {menuItem1, menuItem2, menuItem3, menuItem4, menuItem5, menuItem6}; // NES start menu void nesMenu() { display_Clear(); display_Update(); setup_NES(); checkStatus_NES(); nesCartMenu(); mode = mode_NES; } void nesCartMenu() { // create menu with title " FAMICOM CART READER" and 6 options to choose from convertPgm(baseMenu, 6); unsigned char answer = question_box(F("NES CART READER"), menuOptions, 6, 0); // wait for user choice to come back from the question box menu switch (answer) { // Select Mapper case 0: setMapper(); checkMapperSize(); setPRGSize(); setCHRSize(); setRAMSize(); break; // Read Complete Cart case 1: CartStart(); readPRG(); delay(2000); readCHR(); delay(2000); outputNES(); delay(2000); readRAM(); delay(2000); resetROM(); CartFinish(); break; // Read PRG case 2: CreateROMFolderInSD(); readPRG(); resetROM(); wait(); break; // Read CHR case 3: CreateROMFolderInSD(); readCHR(); resetROM(); wait(); break; // Read RAM case 4: CreateROMFolderInSD(); readRAM(); resetROM(); wait(); break; // Write RAM case 5: writeRAM(); resetROM(); wait(); break; } } /****************************************** Setup *****************************************/ void setup_NES() { // CPU R/W, IRQ, PPU /RD, PPU /A13, CIRAM /CE, PPU /WR, /ROMSEL, PHI2 DDRF = 0b10110111; // CPU R/W, IRQ, PPU /RD, PPU /A13, CIRAM /CE, PPU /WR, /ROMSEL, PHI2 PORTF = 0b11111111; // A0-A7 to Output DDRL = 0xFF; // A8-A14 to Output DDRA = 0xFF; // Set CIRAM A10 to Input DDRC &= ~(1 << 2); // Activate Internal Pullup Resistors PORTC |= (1 << 2); // Set D0-D7 to Input PORTK = 0xFF; DDRK = 0; set_address(0); LED_RED_OFF; LED_GREEN_OFF; LED_BLUE_OFF; } /****************************************** Low Level Functions *****************************************/ static void phi2_init() { int i = 0x80; unsigned char h = PORTF |= (1 << 0); unsigned char l = PORTF &= ~(1 << 0); while (i != 0) { PORTL = l; PORTL = h; i--; } } static void set_address(unsigned int address) { unsigned char l = address & 0xFF; unsigned char h = address >> 8; PORTL = l; PORTA = h; // PPU /A13 if ((address >> 13) & 1) PORTF &= ~(1 << 4); else PORTF |= 1 << 4; } static void set_romsel(unsigned int address) { if (address & 0x8000) { ROMSEL_LOW; } else { ROMSEL_HI; } } static unsigned char read_prg_byte(unsigned int address) { MODE_READ; PRG_READ; set_address(address); PHI2_HI; set_romsel(address); _delay_us(1); return PINK; } static unsigned char read_chr_byte(unsigned int address) { MODE_READ; PHI2_HI; ROMSEL_HI; set_address(address); CHR_READ_LOW; _delay_us(1); uint8_t result = PINK; CHR_READ_HI; return result; } static void write_prg_byte(unsigned int address, uint8_t data) { PHI2_LOW; ROMSEL_HI; MODE_WRITE; PRG_WRITE; PORTK = data; set_address(address); // PHI2 low, ROMSEL always HIGH // _delay_us(1); PHI2_HI; //_delay_us(10); set_romsel(address); // ROMSEL is low if need, PHI2 high _delay_us(1); // WRITING //_delay_ms(1); // WRITING // PHI2 low, ROMSEL high PHI2_LOW; _delay_us(1); ROMSEL_HI; // Back to read mode // _delay_us(1); PRG_READ; MODE_READ; set_address(0); // Set phi2 to high state to keep cartridge unreseted // _delay_us(1); PHI2_HI; // _delay_us(1); } static void write_chr_byte(unsigned int address, uint8_t data) { PHI2_LOW; ROMSEL_HI; MODE_WRITE; PORTK = data; set_address(address); // PHI2 low, ROMSEL always HIGH //_delay_us(10); CHR_WRITE_LOW; _delay_us(1); // WRITING //_delay_ms(1); // WRITING CHR_WRITE_HI; //_delay_us(1); MODE_READ; set_address(0); PHI2_HI; //_delay_us(1); } static void write_prg(unsigned int address, unsigned int len, uint8_t* data) { LED_RED_ON; while (len > 0) { write_prg_byte(address, *data); address++; len--; data++; } //_delay_ms(1); LED_RED_OFF; } static void write_chr(unsigned int address, unsigned int len, uint8_t* data) { LED_RED_ON; while (len > 0) { write_chr_byte(address, *data); address++; len--; data++; } //_delay_ms(1); LED_RED_OFF; } static void reset_phi2() { LED_RED_ON; LED_GREEN_ON; PHI2_LOW; ROMSEL_HI; _delay_ms(100); PHI2_HI; LED_RED_OFF; LED_GREEN_OFF; } void resetROM() { set_address(0); PHI2_HI; ROMSEL_HI; } void write_mmc1_byte(unsigned int address, uint8_t data) { // write loop for 5 bit register if (address >= 0xE000) { for (int i = 0; i < 5; i++) { write_reg_byte(address, data >> i); // shift 1 bit into temp register [WRITE RAM SAFE] } } else { for (int j = 0; j < 5; j++) { write_prg_byte(address, data >> j); // shift 1 bit into temp register } } } // REFERENCE FOR REGISTER WRITE TO 0xE000/0xF000 // PORTF 7 = CPU R/W = 0 // PORTF 6 = /IRQ = 1 // PORTF 5 = PPU /RD = 1 // PORTF 4 = PPU /A13 = 1 // PORTF 3 = CIRAM /CE = 1 // PORTF 2 = PPU /WR = 1 // PORTF 1 = /ROMSEL // PORTF 0 = PHI2 (M2) // WRITE RAM SAFE TO REGISTERS 0xE000/0xF000 static void write_reg_byte(unsigned int address, uint8_t data) { // FIX FOR MMC1 RAM CORRUPTION PHI2_LOW; ROMSEL_HI; // A15 HI = E000 MODE_WRITE; PRG_WRITE; // CPU R/W LO PORTK = data; set_address(address); // PHI2 low, ROMSEL always HIGH // DIRECT PIN TO PREVENT RAM CORRUPTION // DIFFERENCE BETWEEN M2 LO AND ROMSEL HI MUST BE AROUND 33ns // IF TIME IS GREATER THAN 33ns THEN WRITES TO 0xE000/0xF000 WILL CORRUPT RAM AT 0x6000/0x7000 PORTF = 0b01111101; // ROMSEL LO/M2 HI PORTF = 0b01111110; // ROMSEL HI/M2 LO _delay_us(1); // Back to read mode PRG_READ; MODE_READ; set_address(0); // Set phi2 to high state to keep cartridge unreseted PHI2_HI; } static void write_ram_byte(unsigned int address, uint8_t data) { // Mapper 19 (Namco 106/163) WRITE RAM SAFE ($E000-$FFFF) PHI2_LOW; ROMSEL_HI; MODE_WRITE; PRG_WRITE; PORTK = data; set_address(address); // PHI2 low, ROMSEL always HIGH PHI2_HI; ROMSEL_LOW; // SET /ROMSEL LOW OTHERWISE CORRUPTS RAM _delay_us(1); // WRITING // PHI2 low, ROMSEL high PHI2_LOW; _delay_us(1); ROMSEL_HI; // Back to read mode PRG_READ; MODE_READ; set_address(0); // Set phi2 to high state to keep cartridge unreseted PHI2_HI; } static void write_wram_byte(unsigned int address, uint8_t data) { // Mapper 5 (MMC5) RAM PHI2_LOW; ROMSEL_HI; set_address(address); PORTK = data; _delay_us(1); MODE_WRITE; PRG_WRITE; PHI2_HI; _delay_us(1); // WRITING PHI2_LOW; ROMSEL_HI; // Back to read mode PRG_READ; MODE_READ; set_address(0); // Set phi2 to high state to keep cartridge unreseted PHI2_HI; } int int_pow(int base, int exp) { // Power for int int result = 1; while (exp) { if (exp & 1) result *= base; exp /= 2; base *= base; } return result; } /****************************************** CRC Functions *****************************************/ File crcFile; char tempCRC[9]; inline uint32_t updateCRC32(uint8_t ch, uint32_t crc) { uint32_t idx = ((crc) ^ (ch)) & 0xff; uint32_t tab_value = pgm_read_dword(crc_32_tab + idx); return tab_value ^ ((crc) >> 8); } uint32_t crc32(File &file, uint32_t &charcnt) { uint32_t oldcrc32 = 0xFFFFFFFF; charcnt = 0; while (file.available()) { crcFile.read(sdBuffer, 512); for (int x = 0; x < 512; x++) { uint8_t c = sdBuffer[x]; charcnt++; oldcrc32 = updateCRC32(c, oldcrc32); } } return ~oldcrc32; } uint32_t crc32EEP(File &file, uint32_t &charcnt) { uint32_t oldcrc32 = 0xFFFFFFFF; charcnt = 0; while (file.available()) { crcFile.read(sdBuffer, 128); for (int x = 0; x < 128; x++) { uint8_t c = sdBuffer[x]; charcnt++; oldcrc32 = updateCRC32(c, oldcrc32); } } return ~oldcrc32; } void calcCRC(char* checkFile, unsigned long filesize) { uint32_t crc; crcFile = sd.open(checkFile); if (filesize < 1024) crc = crc32EEP(crcFile, filesize); else crc = crc32(crcFile, filesize); crcFile.close(); sprintf(tempCRC, "%08lX", crc); print_Msg(F("CRC: ")); println_Msg(tempCRC); display_Update(); } /****************************************** File Functions *****************************************/ void CreateROMFolderInSD() { sd.chdir(); sprintf(folder, "NES/ROM"); sd.mkdir(folder, true); sd.chdir(folder); } void CreatePRGFileInSD() { strcpy(fileName, "PRG"); strcat(fileName, ".bin"); for (byte i = 0; i < 100; i++) { if (!sd.exists(fileName)) { sdFile = sd.open(fileName, O_RDWR | O_CREAT); break; } sprintf(fileCount, "%02d", i); strcpy(fileName, "PRG."); strcat(fileName, fileCount); strcat(fileName, ".bin"); } if (!sdFile) { LED_RED_ON; display_Clear(); println_Msg(F("PRG FILE FAILED!")); display_Update(); print_Error(F("SD Error"), true); LED_RED_OFF; } } void CreateCHRFileInSD() { strcpy(fileName, "CHR"); strcat(fileName, ".bin"); for (byte i = 0; i < 100; i++) { if (!sd.exists(fileName)) { sdFile = sd.open(fileName, O_RDWR | O_CREAT); break; } sprintf(fileCount, "%02d", i); strcpy(fileName, "CHR."); strcat(fileName, fileCount); strcat(fileName, ".bin"); } if (!sdFile) { LED_RED_ON; display_Clear(); println_Msg(F("CHR FILE FAILED!")); display_Update(); print_Error(F("SD Error"), true); LED_RED_OFF; } } void CreateRAMFileInSD() { strcpy(fileName, "RAM"); strcat(fileName, ".bin"); for (byte i = 0; i < 100; i++) { if (!sd.exists(fileName)) { sdFile = sd.open(fileName, O_RDWR | O_CREAT); break; } sprintf(fileCount, "%02d", i); strcpy(fileName, "RAM."); strcat(fileName, fileCount); strcat(fileName, ".bin"); } if (!sdFile) { LED_RED_ON; display_Clear(); println_Msg(F("RAM FILE FAILED!")); display_Update(); print_Error(F("SD Error"), true); LED_RED_OFF; } } void outputNES() { display_Clear(); LED_RED_ON; LED_GREEN_ON; LED_BLUE_ON; if (!sdFile.open(filePRG, FILE_READ)) { LED_GREEN_OFF; LED_BLUE_OFF; display_Clear(); println_Msg(F("PRG FILE FAILED!")); display_Update(); print_Error(F("SD Error"), true); } if (!sd.exists(fileNES)) { nesFile = sd.open(fileNES, O_RDWR | O_CREAT); } if (!nesFile) { LED_GREEN_OFF; LED_BLUE_OFF; display_Clear(); println_Msg(F("NES FILE FAILED!")); display_Update(); print_Error(F("SD Error"), true); } size_t n; while ((n = sdFile.read(sdBuffer, sizeof(sdBuffer))) > 0) { nesFile.write(sdBuffer, n); } sdFile.close(); if (sd.exists(fileCHR)) { if (!sdFile.open(fileCHR, FILE_READ)) { LED_GREEN_OFF; LED_BLUE_OFF; display_Clear(); println_Msg(F("CHR FILE FAILED!")); display_Update(); print_Error(F("SD Error"), true); } while ((n = sdFile.read(sdBuffer, sizeof(sdBuffer))) > 0) { nesFile.write(sdBuffer, n); } sdFile.close(); } nesFile.flush(); nesFile.close(); println_Msg(F("NES FILE OUTPUT!")); println_Msg(F("")); display_Update(); calcCRC(fileNES, (prg + chr) * 1024); LED_RED_OFF; LED_GREEN_OFF; LED_BLUE_OFF; } void CartStart() { sd.chdir(); EEPROM_readAnything(0, foldern); // FOLDER # sprintf(folder, "NES/CART/%d", foldern); sd.mkdir(folder, true); sd.chdir(folder); } void CartFinish() { foldern += 1; EEPROM_writeAnything(0, foldern); // FOLDER # sd.chdir(); } /****************************************** Config Functions *****************************************/ void setMapper() { #ifdef enable_OLED chooseMapper: // Read stored mapper EEPROM_readAnything(7, newmapper); if (newmapper > 220) newmapper = 0; // Split into digits byte hundreds = newmapper / 100; byte tens = newmapper / 10 - hundreds * 10; byte units = newmapper - hundreds * 100 - tens * 10; // Cycle through al 3 digits for (byte digit = 0; digit < 3; digit++) { while (1) { display.clearDisplay(); display.setCursor(0, 0); display.println("Select Mapper:"); display.setCursor(23, 20); display.println(hundreds); display.setCursor(43, 20); display.println(tens); display.setCursor(63, 20); display.println(units); display.println(""); display.println(F("Press to change")); display.println(F("Hold to select")); if (digit == 0) { display.drawLine(20, 30, 30, 30, WHITE); display.drawLine(40, 30, 50, 30, BLACK); display.drawLine(60, 30, 70, 30, BLACK); } else if (digit == 1) { display.drawLine(20, 30, 30, 30, BLACK); display.drawLine(40, 30, 50, 30, WHITE); display.drawLine(60, 30, 70, 30, BLACK); } else if (digit == 2) { display.drawLine(20, 30, 30, 30, BLACK); display.drawLine(40, 30, 50, 30, BLACK); display.drawLine(60, 30, 70, 30, WHITE); } /* Check Button 1 click 2 doubleClick 3 hold 4 longHold */ int b = checkButton(); if (b == 1) { if (digit == 0) { if (hundreds < 2) hundreds++; else hundreds = 0; } else if (digit == 1) { if (hundreds == 2) { if (tens < 1) tens++; else tens = 0; } else { if (tens < 9) tens++; else tens = 0; } } else if (digit == 2) { if (units < 9) units++; else units = 0; } } else if (b == 2) { if (digit == 0) { if (hundreds > 0) hundreds--; else hundreds = 2; } else if (digit == 1) { if (hundreds == 2) { if (tens > 0) tens--; else tens = 1; } else { if (tens > 0) tens--; else tens = 9; } } else if (digit == 2) { if (units > 0) units--; else units = 9; } } else if (b == 3) { break; } display.display(); } } display.clearDisplay(); display.setCursor(0, 0); newmapper = hundreds * 100 + tens * 10 + units; // Check if valid boolean validMapper = 0; byte mapcount = (sizeof(mapsize) / sizeof(mapsize[0])) / 7; for (byte currMaplist = 0; currMaplist < mapcount; currMaplist++) { if (pgm_read_byte(mapsize + currMaplist * 7) == newmapper) validMapper = 1; } if (!validMapper) { errorLvl = 1; display.println("Mapper not supported"); display.display(); wait_btn(); goto chooseMapper; } #else setmapper: String newmap; mapfound = false; Serial.println(F("SUPPORTED MAPPERS:")); for (int i = 0; i < mapcount; i++) { index = i * 7; mapselect = pgm_read_byte(mapsize + index); Serial.print(mapselect); if (i < mapcount - 1) { if ((i != 0) && ((i + 1) % 10 == 0)) Serial.println(F("")); else Serial.print(F("\t")); } else Serial.println(F("")); } Serial.print(F("Enter Mapper: ")); while (Serial.available() == 0) {} newmap = Serial.readStringUntil('\n'); Serial.println(newmap); newmapper = newmap.toInt(); for (int i = 0; i < mapcount; i++) { index = i * 7; mapselect = pgm_read_byte(mapsize + index); if (newmapper == mapselect) mapfound = true; } if (mapfound == false) { Serial.println(F("MAPPER NOT SUPPORTED!")); Serial.println(F("")); newmapper = 0; goto setmapper; } #endif EEPROM_writeAnything(7, newmapper); mapper = newmapper; } void checkMapperSize() { for (int i = 0; i < mapcount; i++) { index = i * 7; byte mapcheck = pgm_read_byte(mapsize + index); if (mapcheck == mapper) { prglo = pgm_read_byte(mapsize + index + 1); prghi = pgm_read_byte(mapsize + index + 2); chrlo = pgm_read_byte(mapsize + index + 3); chrhi = pgm_read_byte(mapsize + index + 4); ramlo = pgm_read_byte(mapsize + index + 5); ramhi = pgm_read_byte(mapsize + index + 6); break; } } } void setPRGSize() { #ifdef enable_OLED display_Clear(); if (prglo == prghi) newprgsize = prglo; else { b = 0; int i = prglo; while (1) { display_Clear(); print_Msg(F("PRG Size: ")); println_Msg(PRG[i]); println_Msg(F("")); println_Msg(F("Press to Change")); println_Msg(F("Hold to Select")); display_Update(); b = checkButton(); if (b == doubleclick) { // Previous if (i == prglo) i = prghi; else i--; } if (b == press) { // Next if (i == prghi) i = prglo; else i++; } if (b == hold) { // Long Press - Execute newprgsize = i; break; } } display.setCursor(0, 56); // Display selection at bottom } print_Msg(F("PRG SIZE ")); print_Msg(PRG[newprgsize]); println_Msg(F("K")); display_Update(); delay(1000); #else if (prglo == prghi) newprgsize = prglo; else { setprg: String sizePRG; for (int i = 0; i < (prghi - prglo + 1); i++) { Serial.print(F("Select PRG Size: ")); Serial.print(i); Serial.print(F(" = ")); Serial.print(PRG[i + prglo]); Serial.println(F("K")); } Serial.print(F("Enter PRG Size: ")); while (Serial.available() == 0) {} sizePRG = Serial.readStringUntil('\n'); Serial.println(sizePRG); newprgsize = sizePRG.toInt() + prglo; if (newprgsize > prghi) { Serial.println(F("SIZE NOT SUPPORTED")); Serial.println(F("")); goto setprg; } } Serial.print(F("PRG Size = ")); Serial.print(PRG[newprgsize]); Serial.println(F("K")); #endif EEPROM_writeAnything(8, newprgsize); prgsize = newprgsize; } void setCHRSize() { #ifdef enable_OLED display_Clear(); if (chrlo == chrhi) newchrsize = chrlo; else { b = 0; int i = chrlo; while (1) { display_Clear(); print_Msg(F("CHR Size: ")); println_Msg(CHR[i]); println_Msg(F("")); println_Msg(F("Press to Change")); println_Msg(F("Hold to Select")); display_Update(); b = checkButton(); if (b == doubleclick) { // Previous if (i == chrlo) i = chrhi; else i--; } if (b == press) { // Next if (i == chrhi) i = chrlo; else i++; } if (b == hold) { // Long Press - Execute newchrsize = i; break; } } display.setCursor(0, 56); // Display selection at bottom } print_Msg(F("CHR SIZE ")); print_Msg(CHR[newchrsize]); println_Msg(F("K")); display_Update(); delay(1000); #else if (chrlo == chrhi) newchrsize = chrlo; else { setchr: String sizeCHR; for (int i = 0; i < (chrhi - chrlo + 1); i++) { Serial.print(F("Select CHR Size: ")); Serial.print(i); Serial.print(F(" = ")); Serial.print(CHR[i + chrlo]); Serial.println(F("K")); } Serial.print(F("Enter CHR Size: ")); while (Serial.available() == 0) {} sizeCHR = Serial.readStringUntil('\n'); Serial.println(sizeCHR); newchrsize = sizeCHR.toInt() + chrlo; if (newchrsize > chrhi) { Serial.println(F("SIZE NOT SUPPORTED")); Serial.println(F("")); goto setchr; } } Serial.print(F("CHR Size = ")); Serial.print(CHR[newchrsize]); Serial.println(F("K")); #endif EEPROM_writeAnything(9, newchrsize); chrsize = newchrsize; } void setRAMSize() { #ifdef enable_OLED display_Clear(); if (ramlo == ramhi) newramsize = ramlo; else { b = 0; int i = 0; while (1) { display_Clear(); print_Msg(F("RAM Size: ")); if (mapper == 16) println_Msg(RAM[i] * 32); else if (mapper == 159) println_Msg(RAM[i] * 16); else println_Msg(RAM[i]); println_Msg(F("")); println_Msg(F("Press to Change")); println_Msg(F("Hold to Select")); display_Update(); b = checkButton(); if (b == doubleclick) { // Previous Mapper if (i == 0) i = ramhi; else i--; } if (b == press) { // Next if (i == ramhi) i = 0; else i++; } if (b == hold) { // Long Press - Execute newramsize = i; break; } } display.setCursor(0, 56); // Display selection at bottom } if ((mapper == 16) || (mapper == 159)) { int sizeEEP = 0; print_Msg(F("EEPROM SIZE ")); if (mapper == 16) sizeEEP = RAM[newramsize] * 32; else sizeEEP = RAM[newramsize] * 16; print_Msg(sizeEEP); println_Msg(F("B")); } else { print_Msg(F("RAM SIZE ")); print_Msg(RAM[newramsize]); println_Msg(F("K")); } display_Update(); delay(1000); #else if (ramlo == ramhi) newramsize = ramlo; else { setram: String sizeRAM; for (int i = 0; i < (ramhi - ramlo + 1); i++) { Serial.print(F("Select RAM Size: ")); Serial.print(i); Serial.print(F(" = ")); if ((mapper == 16) || (mapper == 159)) { if (mapper == 16) Serial.print(RAM[i + ramlo] * 32); else Serial.print(RAM[i + ramlo] * 16); Serial.println(F("B")); } else { Serial.print(RAM[i + ramlo]); Serial.println(F("K")); } } Serial.print(F("Enter RAM Size: ")); while (Serial.available() == 0) {} sizeRAM = Serial.readStringUntil('\n'); Serial.println(sizeRAM); newramsize = sizeRAM.toInt() + ramlo; if (newramsize > ramhi) { Serial.println(F("SIZE NOT SUPPORTED")); Serial.println(F("")); goto setram; } } if ((mapper == 16) || (mapper == 159)) { int sizeEEP = 0; Serial.print(F("EEPROM Size = ")); if (mapper == 16) sizeEEP = RAM[newramsize] * 32; else sizeEEP = RAM[newramsize] * 16; Serial.print(sizeEEP); Serial.println(F("B")); Serial.println(F("")); } else { Serial.print(F("RAM Size = ")); Serial.print(RAM[newramsize]); Serial.println(F("K")); Serial.println(F("")); } #endif EEPROM_writeAnything(10, newramsize); ramsize = newramsize; } void checkStatus_NES() { EEPROM_readAnything(7, mapper); EEPROM_readAnything(8, prgsize); EEPROM_readAnything(9, chrsize); EEPROM_readAnything(10, ramsize); prg = (int_pow(2, prgsize)) * 16; if (chrsize == 0) chr = 0; // 0K else chr = (int_pow(2, chrsize)) * 4; if (ramsize == 0) ram = 0; // 0K else ram = (int_pow(2, ramsize)) * 4; display_Clear(); println_Msg(F("NES CART READER")); println_Msg(F("CURRENT SETTINGS")); println_Msg(F("")); print_Msg(F("MAPPER: ")); println_Msg(mapper); print_Msg(F("PRG SIZE: ")); print_Msg(prg); println_Msg(F("K")); print_Msg(F("CHR SIZE: ")); print_Msg(chr); println_Msg(F("K")); print_Msg(F("RAM SIZE: ")); if ((mapper == 16) || (mapper == 159)) { if (mapper == 16) print_Msg(ram * 32); else print_Msg(ram * 16); println_Msg(F("B")); } else { print_Msg(ram); println_Msg(F("K")); } display_Update(); wait(); } /****************************************** ROM Functions *****************************************/ void dumpPRG(word base, word address) { for (int x = 0; x < 512; x++) { sdBuffer[x] = read_prg_byte(base + address + x); } sdFile.write(sdBuffer, 512); } void dumpCHR(word address) { for (int x = 0; x < 512; x++) { sdBuffer[x] = read_chr_byte(address + x); } sdFile.write(sdBuffer, 512); } void dumpMMC5RAM(word base, word address) { // MMC5 SRAM DUMP - PULSE M2 LO/HI for (int x = 0; x < 512; x++) { PHI2_LOW; sdBuffer[x] = read_prg_byte(base + address + x); } sdFile.write(sdBuffer, 512); } void writeMMC5RAM(word base, word address) { // MMC5 SRAM WRITE sdFile.read(sdBuffer, 512); for (int x = 0; x < 512; x++) { do { write_prg_byte(0x5102, 2); // PRG RAM PROTECT1 write_prg_byte(0x5103, 1); // PRG RAM PROTECT2 write_wram_byte(base + address + x, sdBuffer[x]); bytecheck = read_prg_byte(base + address + x); } while (bytecheck != sdBuffer[x]); // CHECK WRITTEN BYTE } write_prg_byte(0x5102, 0); // PRG RAM PROTECT1 write_prg_byte(0x5103, 0); // PRG RAM PROTECT2 } void readPRG() { display_Clear(); display_Update(); LED_BLUE_ON; set_address(0); _delay_us(1); CreatePRGFileInSD(); word base = 0x8000; if (sdFile) { switch (mapper) { case 0: case 3: case 13: case 87: // 16K/32K case 184: // 32K case 185: // 16K/32K for (word address = 0; address < ((prgsize * 0x4000) + 0x4000); address += 512) { // 16K or 32K dumpPRG(base, address); } break; case 1: case 155: // 32K/64K/128K/256K/512K banks = int_pow(2, prgsize) - 1; for (int i = 0; i < banks; i++) { // 16K Banks ($8000-$BFFF) write_prg_byte(0x8000, 0x80); // Clear Register write_mmc1_byte(0x8000, 0x0C); // Switch 16K Bank ($8000-$BFFF) + Fixed Last Bank ($C000-$FFFF) if (prgsize > 4) // 512K write_mmc1_byte(0xA000, 0x00); // Reset 512K Flag for Lower 256K if (i > 15) // Switch Upper 256K write_mmc1_byte(0xA000, 0x10); // Set 512K Flag write_mmc1_byte(0xE000, i); for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } for (word address = 0x4000; address < 0x8000; address += 512) { // Final Bank ($C000-$FFFF) dumpPRG(base, address); } break; case 2: for (int i = 0; i < 8; i++) { // 128K/256K write_prg_byte(0x8000, i); for (word address = 0x0; address < (((prgsize - 3) * 0x4000) + 0x4000); address += 512) { dumpPRG(base, address); } } break; case 4: case 47: case 118: case 119: banks = ((int_pow(2, prgsize) * 2)) - 2; // Set Number of Banks if (mapper == 47) write_prg_byte(0xA001, 0x80); // Block Register - PRG RAM Chip Enable, Writable for (int i = 0; i < banks; i += 2) { // 32K/64K/128K/256K/512K if (mapper == 47) { if (i == 0) write_prg_byte(0x6000, 0); // Switch to Lower Block else if (i == 16) write_prg_byte(0x6000, 1); // Switch to Upper Block } write_prg_byte(0x8000, 6); // PRG Bank 0 ($8000-$9FFF) write_prg_byte(0x8001, i); write_prg_byte(0x8000, 7); // PRG Bank 1 ($A000-$BFFF) write_prg_byte(0x8001, i + 1); for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } for (word address = 0x4000; address < 0x8000; address += 512) { // Final 2 Banks ($C000-$FFFF) dumpPRG(base, address); } break; case 5: // 128K/256K/512K banks = int_pow(2, prgsize) * 2; write_prg_byte(0x5100, 3); // 8K PRG Banks for (int i = 0; i < banks; i += 2) { // 128K/256K/512K write_prg_byte(0x5114, i | 0x80); write_prg_byte(0x5115, (i + 1) | 0x80); for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } break; case 7: // 128K/256K case 34: case 77: case 96: // 128K banks = int_pow(2, prgsize) / 2; for (int i = 0; i < banks; i++) { // 32K Banks write_prg_byte(0x8000, i); for (word address = 0x0; address < 0x8000; address += 512) { // 32K Banks ($8000-$FFFF) dumpPRG(base, address); } } break; case 9: // 128K for (int i = 0; i < 13; i++) { // 16-3 = 13 = 128K write_prg_byte(0xA000, i); // $8000-$9FFF for (word address = 0x0; address < 0x2000; address += 512) { // Switch Bank ($8000-$9FFF) dumpPRG(base, address); } } for (word address = 0x2000; address < 0x8000; address += 512) { // Final 3 Banks ($A000-$FFFF) dumpPRG(base, address); } break; case 10: // 128K/256K for (int i = 0; i < (((prgsize - 3) * 8) + 7); i++) { write_prg_byte(0xA000, i); // $8000-$BFFF for (word address = 0x0; address < 0x4000; address += 512) { // Switch Bank ($8000-$BFFF) dumpPRG(base, address); } } for (word address = 0x4000; address < 0x8000; address += 512) { // Final Bank ($C000-$FFFF) dumpPRG(base, address); } break; case 16: case 159: // 128K/256K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { write_prg_byte(0x6008, i); // Submapper 4 write_prg_byte(0x8008, i); // Submapper 5 for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 18: // 128K/256K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i += 2) { write_prg_byte(0x8000, i & 0xF); write_prg_byte(0x8001, (i >> 4) & 0xF); write_prg_byte(0x8002, (i + 1) & 0xF); write_prg_byte(0x8003, ((i + 1) >> 4) & 0xF); for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } break; case 19: // 128K/256K for (int j = 0; j < 64; j++) { // Init Register write_ram_byte(0xE000, 0); // PRG Bank 0 ($8000-$9FFF) } banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i++) { write_ram_byte(0xE000, i); // PRG Bank 0 ($8000-$9FFF) for (word address = 0x0; address < 0x2000; address += 512) { dumpPRG(base, address); } } break; case 21: case 22: case 23: case 25: case 65: case 75: // 128K/256K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i += 2) { write_prg_byte(0x8000, i); write_prg_byte(0xA000, i + 1); for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } break; case 24: case 26: // 256K case 78: // 128K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { // 128K write_prg_byte(0x8000, i); for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 32: // 128K/256K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i++) { // 128K/256K write_prg_byte(0x9000, 1); // PRG Mode 0 - Read $A000-$BFFF to avoid difference between Modes 0 and 1 write_prg_byte(0xA000, i); // PRG Bank for (word address = 0x2000; address < 0x4000; address += 512) { // 8K Banks ($A000-$BFFF) dumpPRG(base, address); } } break; case 33: case 48: // 128K/256K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i += 2) { write_prg_byte(0x8000, i); // PRG Bank 0 ($8000-$9FFF) write_prg_byte(0x8001, i + 1); // PRG Bank 1 ($A000-$BFFF) for (word address = 0x0; address < 0x4000; address += 512) { // 8K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 37: banks = ((int_pow(2, prgsize) * 2)) - 2; // Set Number of Banks write_prg_byte(0xA001, 0x80); // Block Register - PRG RAM Chip Enable, Writable for (int i = 0; i < banks; i += 2) { // 256K if (i == 0) write_prg_byte(0x6000, 0); // Switch to Lower Block ($0000-$FFFF) else if (i == 8) write_prg_byte(0x6000, 3); // Switch to 2nd 64K Block ($10000-$1FFFF) else if (i == 16) write_prg_byte(0x6000, 4); // Switch to 128K Block ($20000-$3FFFF) write_prg_byte(0x8000, 6); // PRG Bank 0 ($8000-$9FFF) write_prg_byte(0x8001, i); write_prg_byte(0x8000, 7); // PRG Bank 1 ($A000-$BFFF) write_prg_byte(0x8001, i + 1); for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } for (word address = 0x4000; address < 0x8000; address += 512) { // Final 2 Banks ($C000-$FFFF) dumpPRG(base, address); } break; case 66: // 64K/128K banks = int_pow(2, prgsize) / 2; for (int i = 0; i < banks; i++) { // 64K/128K write_prg_byte(0x8000, i << 4); // bits 4-5 for (word address = 0x0; address < 0x8000; address += 512) { // 32K Banks ($8000-$FFFF) dumpPRG(base, address); } } break; case 67: // 128K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { // 128K write_reg_byte(0xF800, i); // [WRITE RAM SAFE] for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 68: case 73: // 128K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { // 128K write_reg_byte(0xF000, i); // [WRITE RAM SAFE] for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 69: // 128K/256K banks = int_pow(2, prgsize) * 2; write_prg_byte(0x8000, 8); // Command Register - PRG Bank 0 write_prg_byte(0xA000, 0); // Parameter Register - PRG RAM Disabled, PRG ROM, Bank 0 to $6000-$7FFF for (int i = 0; i < banks; i++) { // 128K/256K write_prg_byte(0x8000, 9); // Command Register - PRG Bank 1 write_prg_byte(0xA000, i); // Parameter Register - ($8000-$9FFF) for (word address = 0x0000; address < 0x2000; address += 512) { // 8K Banks ($8000-$9FFF) dumpPRG(base, address); } } break; case 70: case 89: case 93: // 128K case 152: // 64K/128K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { // 128K write_prg_byte(0x8000, i << 4); for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 71: // 64K/128K/256K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { write_prg_byte(0xC000, i); for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 72: // 128K banks = int_pow(2, prgsize); write_prg_byte(0x8000, 0); // Reset Register for (int i = 0; i < banks; i++) { // 128K write_prg_byte(0x8000, i | 0x80); // PRG Command + Bank write_prg_byte(0x8000, i); // PRG Bank for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 76: case 88: case 95: case 154: // 128K case 206: // 32K/64K/128K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i += 2) { write_prg_byte(0x8000, 6); // PRG ROM Command ($8000-$9FFF) write_prg_byte(0x8001, i); // PRG Bank write_prg_byte(0x8000, 7); // PRG ROM Command ($A000-$BFFF) write_prg_byte(0x8001, i + 1); // PRG Bank for (word address = 0x0; address < 0x4000; address += 512) { // 8K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 80: // 128K case 207: // 256K [CART SOMETIMES NEEDS POWERCYCLE] banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i += 2) { write_prg_byte(0x7EFA, i); // PRG Bank 0 ($8000-$9FFF) write_prg_byte(0x7EFC, i + 1); // PRG Bank 1 ($A000-$BFFF) for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } break; case 82: // 128K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i += 2) { write_prg_byte(0x7EFA, i << 2); // PRG Bank 0 ($8000-$9FFF) write_prg_byte(0x7EFB, (i + 1) << 2); // PRG Bank 1 ($A000-$BFFF) for (word address = 0x0; address < 0x4000; address += 512) { // 8K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 85: // 128K/512K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i++) { write_prg_byte(0x8000, i); // PRG Bank 0 ($8000-$9FFF) for (word address = 0x0; address < 0x2000; address += 512) { // 8K Banks ($8000-$9FFF) dumpPRG(base, address); } } break; case 86: case 140: // 128K banks = int_pow(2, prgsize) / 2; for (int i = 0; i < banks; i++) { // 128K write_prg_byte(0x6000, i << 4); // bits 4-5 for (word address = 0x0; address < 0x8000; address += 512) { // 32K Banks ($8000-$FFFF) dumpPRG(base, address); } } break; case 92: // 256K banks = int_pow(2, prgsize); write_prg_byte(0x8000, 0); // Reset Register for (int i = 0; i < banks; i++) { // 256K write_prg_byte(0x8000, i | 0x80); // PRG Command + Bank write_prg_byte(0x8000, i); // PRG Bank for (word address = 0x4000; address < 0x8000; address += 512) { // 16K Banks ($C000-$FFFF) dumpPRG(base, address); } } break; case 94: banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { // 128K write_prg_byte(0x8000, i << 2); for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } break; case 97: // 256K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { // 256K write_prg_byte(0x8000, i); // PRG Bank for (word address = 0x4000; address < 0x8000; address += 512) { // 16K Banks ($C000-$FFFF) dumpPRG(base, address); } } break; case 105: // 256K write_mmc1_byte(0xA000, 0x00); // Clear PRG Init/IRQ (Bit 4) write_mmc1_byte(0xA000, 0x10); // Set PRG Init/IRQ (Bit 4) to enable bank swapping for (int i = 0; i < 4; i++) { // PRG CHIP 1 128K write_mmc1_byte(0xA000, i << 1); for (word address = 0x0; address < 0x8000; address += 512) { // 32K Banks ($8000-$FFFF) dumpPRG(base, address); } } write_mmc1_byte(0x8000, 0x0C); // Switch 16K Bank ($8000-$BFFF) + Fixed Last Bank ($C000-$FFFF) write_mmc1_byte(0xA000, 0x08); // Select PRG CHIP 2 (Bit 3) for (int j = 0; j < 8; j++) { // PRG CHIP 2 128K write_mmc1_byte(0xE000, j); for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 180: // 128K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { write_prg_byte(0x8000, i); for (word address = 0x4000; address < 0x8000; address += 512) { // 16K Banks ($C000-$FFFF) dumpPRG(base, address); } } break; case 153: // 512K banks = int_pow(2, prgsize); for (int i = 0; i < banks; i++) { // 512K write_prg_byte(0x8000, i >> 4); // PRG Outer Bank (Documentation says duplicate over $8000-$8003 registers) write_prg_byte(0x8001, i >> 4); // PRG Outer Bank write_prg_byte(0x8002, i >> 4); // PRG Outer Bank write_prg_byte(0x8003, i >> 4); // PRG Outer Bank write_prg_byte(0x8008, i & 0xF); // PRG Inner Bank for (word address = 0x0000; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF) dumpPRG(base, address); } } break; case 210: // 128K/256K banks = int_pow(2, prgsize) * 2; for (int i = 0; i < banks; i += 2) { write_prg_byte(0xE000, i); // PRG Bank 0 ($8000-$9FFF) [WRITE NO RAM] write_prg_byte(0xE800, i + 1); // PRG Bank 1 ($A000-$BFFF) [WRITE NO RAM] for (word address = 0x0; address < 0x4000; address += 512) { dumpPRG(base, address); } } break; } sdFile.flush(); sdFile.close(); println_Msg(F("PRG FILE DUMPED!")); println_Msg(F("")); display_Update(); calcCRC(fileName, prg * 1024); } set_address(0); PHI2_HI; ROMSEL_HI; LED_BLUE_OFF; } void readCHR() { display_Clear(); display_Update(); LED_GREEN_ON; set_address(0); _delay_us(1); if (chrsize == 0) { println_Msg(F("CHR SIZE 0K")); display_Update(); } else { CreateCHRFileInSD(); if (sdFile) { switch (mapper) { case 0: // 8K for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } break; case 1: case 155: banks = int_pow(2, chrsize); for (int i = 0; i < banks; i += 2) { // 8K/16K/32K/64K/128K (Bank #s are based on 4K Banks) write_prg_byte(0x8000, 0x80); // Clear Register write_mmc1_byte(0xA000, i); for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 3: // 8K/16K/32K case 66: // 16K/32K case 70: case 152: // 128K banks = int_pow(2, chrsize) / 2; for (int i = 0; i < banks; i++) { // 8K Banks write_prg_byte(0x8000, i); // CHR Bank 0 for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 4: case 47: case 118: case 119: banks = int_pow(2, chrsize) * 4; if (mapper == 47) write_prg_byte(0xA001, 0x80); // Block Register - PRG RAM Chip Enable, Writable for (int i = 0; i < banks; i += 4) { // 8K/16K/32K/64K/128K/256K if (mapper == 47) { if (i == 0) write_prg_byte(0x6000, 0); // Switch to Lower Block else if (i == 128) write_prg_byte(0x6000, 1); // Switch to Upper Block } write_prg_byte(0x8000, 0); // CHR Bank 0 ($0000-$07FF) write_prg_byte(0x8001, i); write_prg_byte(0x8000, 1); // CHR Bank 1 ($0800-$0FFF) write_prg_byte(0x8001, i + 2); for (word address = 0x0; address < 0x1000; address += 512) { dumpCHR(address); } } break; case 5: // 128K/256K/512K banks = int_pow(2, chrsize) / 2; write_prg_byte(0x5101, 0); // 8K CHR Banks for (int i = 0; i < banks; i++) { if (i == 0) write_prg_byte(0x5130, 0); // Set Upper 2 bits else if (i == 8) write_prg_byte(0x5130, 1); // Set Upper 2 bits else if (i == 16) write_prg_byte(0x5130, 2); // Set Upper 2 bits else if (i == 24) write_prg_byte(0x5130, 3); // Set Upper 2 bits write_prg_byte(0x5127, i); for (word address = 0x0; address < 0x2000; address += 512) { // ($0000-$1FFF) dumpCHR(address); } } break; case 9: case 10: // Mapper 9: 128K, Mapper 10: 64K/128K if (mapper == 9) banks = 32; else // Mapper 10 banks = int_pow(2, chrsize); for (int i = 0; i < banks; i++) { // 64K/128K write_prg_byte(0xB000, i); write_prg_byte(0xC000, i); for (word address = 0x0; address < 0x1000; address += 512) { dumpCHR(address); } } break; case 16: case 159: // 128K/256K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i++) { write_prg_byte(0x6000, i); // Submapper 4 write_prg_byte(0x8000, i); // Submapper 5 for (word address = 0x0; address < 0x400; address += 512) { dumpCHR(address); } } break; case 18: // 128K/256K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i++) { write_prg_byte(0xA000, i & 0xF); // CHR Bank Lower 4 bits write_prg_byte(0xA001, (i >> 4) & 0xF); // CHR Bank Upper 4 bits for (word address = 0x0; address < 0x400; address += 512) { dumpCHR(address); } } break; case 19: // 128K/256K for (int j = 0; j < 64; j++) { // Init Register write_ram_byte(0xE800, 0xC0); // CHR RAM High/Low Disable (ROM Enable) } banks = int_pow(2, chrsize) * 4; write_ram_byte(0xE800, 0xC0); // CHR RAM High/Low Disable (ROM Enable) for (int i = 0; i < banks; i += 8) { write_prg_byte(0x8000, i); // CHR Bank 0 write_prg_byte(0x8800, i + 1); // CHR Bank 1 write_prg_byte(0x9000, i + 2); // CHR Bank 2 write_prg_byte(0x9800, i + 3); // CHR Bank 3 write_prg_byte(0xA000, i + 4); // CHR Bank 4 write_prg_byte(0xA800, i + 5); // CHR Bank 5 write_prg_byte(0xB000, i + 6); // CHR Bank 6 write_prg_byte(0xB800, i + 7); // CHR Bank 7 for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 21: // 128K/256K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i++) { write_prg_byte(0xB000, i & 0xF); // CHR Bank Lower 4 bits if (banks == 128) write_prg_byte(0xB002, (i >> 4) & 0xF); // CHR Bank Upper 4 bits VRC4a (Wai Wai World 2) else // banks == 256 write_prg_byte(0xB040, (i >> 4) & 0xF); // CHR Bank Upper 4 bits VRC4c (Ganbare Goemon Gaiden 2) for (word address = 0x0; address < 0x400; address += 512) { dumpCHR(address); } } break; case 22: // 128K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i++) { write_prg_byte(0xB000, (i << 1) & 0xF); // CHR Bank Lower 4 bits write_prg_byte(0xB002, (i >> 3) & 0xF); // CHR Bank Upper 4 bits for (word address = 0x0; address < 0x400; address += 512) { dumpCHR(address); } } break; case 23: // 128K // Detect VRC4e Carts - read PRG 0x1FFF6 (DATE) // Boku Dracula-kun = 890810, Tiny Toon = 910809 write_prg_byte(0x8000, 15); prgchk0 = read_prg_byte(0x9FF6); prgchk1 = read_prg_byte(0x9FF7); if ((prgchk0 == 0x30) && (prgchk1 == 0x38)) { // Check for "08" in middle of date vrc4e = true; // VRC4e Cart } banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i++) { write_prg_byte(0xB000, i & 0xF); // CHR Bank Lower 4 bits if (vrc4e == true) write_prg_byte(0xB004, (i >> 4) & 0xF); // CHR Bank Upper 4 bits VRC4e (Boku Dracula-kun/Tiny Toon) else write_prg_byte(0xB001, (i >> 4) & 0xF); // CHR Bank Upper 4 bits VRC2b/VRC4f for (word address = 0x0; address < 0x400; address += 512) { dumpCHR(address); } } break; case 24: // 128K banks = int_pow(2, chrsize) * 4; write_prg_byte(0xB003, 0); // PPU Banking Mode 0 for (int i = 0; i < banks; i += 8) { write_prg_byte(0xD000, i); // CHR Bank 0 write_prg_byte(0xD001, i + 1); // CHR Bank 1 write_prg_byte(0xD002, i + 2); // CHR Bank 2 write_prg_byte(0xD003, i + 3); // CHR Bank 3 write_prg_byte(0xE000, i + 4); // CHR Bank 4 [WRITE NO RAM] write_prg_byte(0xE001, i + 5); // CHR Bank 5 [WRITE NO RAM] write_prg_byte(0xE002, i + 6); // CHR Bank 6 [WRITE NO RAM] write_prg_byte(0xE003, i + 7); // CHR Bank 7 [WRITE NO RAM] for (word address = 0x0; address < 0x2000; address += 512) { // 1K Banks dumpCHR(address); } } break; case 25: // 128K/256K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i++) { write_prg_byte(0xB000, i & 0xF); // CHR Bank Lower 4 bits if ((ramsize > 0) || (banks == 128)) // VRC2c (Ganbare Goemon Gaiden)/VRC4b (Bio Miracle/Gradius 2/Racer Mini) write_prg_byte(0xB002, (i >> 4) & 0xF); // CHR Bank Upper 4 bits VRC2c/VRC4b else write_prg_byte(0xB008, (i >> 4) & 0xF); // CHR Bank Upper 4 bits VRC4d (Teenage Mutant Ninja Turtles) for (word address = 0x0; address < 0x400; address += 512) { dumpCHR(address); } } break; case 26: // 128K/256K banks = int_pow(2, chrsize) * 4; write_prg_byte(0xB003, 0); // PPU Banking Mode 0 for (int i = 0; i < banks; i += 8) { write_prg_byte(0xD000, i); // CHR Bank 0 write_prg_byte(0xD002, i + 1); // CHR Bank 1 write_prg_byte(0xD001, i + 2); // CHR Bank 2 write_prg_byte(0xD003, i + 3); // CHR Bank 3 write_reg_byte(0xE000, i + 4); // CHR Bank 4 [WRITE RAM SAFE] write_reg_byte(0xE002, i + 5); // CHR Bank 5 [WRITE RAM SAFE] write_reg_byte(0xE001, i + 6); // CHR Bank 6 [WRITE RAM SAFE] write_reg_byte(0xE003, i + 7); // CHR Bank 7 [WRITE RAM SAFE] for (word address = 0x0; address < 0x2000; address += 512) { // 1K Banks dumpCHR(address); } } break; case 32: // 128K case 65: // 128K/256K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i += 8) { write_prg_byte(0xB000, i); // CHR Bank 0 write_prg_byte(0xB001, i + 1); // CHR Bank 1 write_prg_byte(0xB002, i + 2); // CHR Bank 2 write_prg_byte(0xB003, i + 3); // CHR Bank 3 write_prg_byte(0xB004, i + 4); // CHR Bank 4 write_prg_byte(0xB005, i + 5); // CHR Bank 5 write_prg_byte(0xB006, i + 6); // CHR Bank 6 write_prg_byte(0xB007, i + 7); // CHR Bank 7 for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 33: // 128K/256K case 48: // 256K banks = int_pow(2, chrsize) * 2; for (int i = 0; i < banks; i += 2) { // 2K Banks write_prg_byte(0x8002, i); // CHR Bank 0 write_prg_byte(0x8003, i + 1); // CHR Bank 1 for (word address = 0x0; address < 0x1000; address += 512) { dumpCHR(address); } } break; case 37: banks = int_pow(2, chrsize) * 4; write_prg_byte(0xA001, 0x80); // Block Register - PRG RAM Chip Enable, Writable for (int i = 0; i < banks; i += 4) { // 256K if (i == 0) write_prg_byte(0x6000, 0); // Switch to Lower Block ($00000-$1FFFF) else if (i == 128) write_prg_byte(0x6000, 4); // Switch to Upper Block ($20000-$3FFFF) write_prg_byte(0x8000, 0); // CHR Bank 0 ($0000-$07FF) write_prg_byte(0x8001, i); write_prg_byte(0x8000, 1); // CHR Bank 1 ($0800-$0FFF) write_prg_byte(0x8001, i + 2); for (word address = 0x0; address < 0x1000; address += 512) { dumpCHR(address); } } break; case 67: // 128K banks = int_pow(2, chrsize) * 2; for (int i = 0; i < banks; i += 4) { // 2K Banks write_prg_byte(0x8800, i); // CHR Bank 0 write_prg_byte(0x9800, i + 1); // CHR Bank 1 write_prg_byte(0xA800, i + 2); // CHR Bank 2 write_prg_byte(0xB800, i + 3); // CHR Bank 3 for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 68: // 128K/256K banks = int_pow(2, chrsize) * 2; for (int i = 0; i < banks; i += 4) { // 2K Banks write_prg_byte(0x8000, i); // CHR Bank 0 write_prg_byte(0x9000, i + 1); // CHR Bank 1 write_prg_byte(0xA000, i + 2); // CHR Bank 2 write_prg_byte(0xB000, i + 3); // CHR Bank 3 for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 69: // 128K/256K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i++) { write_prg_byte(0x8000, 0); // Command Register - CHR Bank 0 write_prg_byte(0xA000, i); // Parameter Register - ($0000-$03FF) for (word address = 0x0; address < 0x400; address += 512) { // 1K Banks dumpCHR(address); } } break; case 72: // 128K banks = int_pow(2, chrsize) / 2; write_prg_byte(0x8000, 0); // Reset Register for (int i = 0; i < banks; i++) { // 8K Banks write_prg_byte(0x8000, i | 0x40); // CHR Command + Bank write_prg_byte(0x8000, i); // CHR Bank for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 75: // 128K banks = int_pow(2, chrsize); for (int i = 0; i < banks; i++) { // 4K Banks write_reg_byte(0xE000, i); // CHR Bank Low Bits [WRITE RAM SAFE] write_prg_byte(0x9000, (i & 0x10) >> 3); // High Bit for (word address = 0x0; address < 0x1000; address += 512) { dumpCHR(address); } } break; case 76: // 128K banks = int_pow(2, chrsize) * 2; for (int i = 0; i < banks; i += 2) { // 2K Banks write_prg_byte(0x8000, 2); // CHR Command ($0000-$07FF) 2K Bank write_prg_byte(0x8001, i); // CHR Bank write_prg_byte(0x8000, 3); // CHR Command ($0800-$0FFF) 2K Bank write_prg_byte(0x8001, i + 1); // CHR Bank for (word address = 0x0000; address < 0x1000; address += 512) { dumpCHR(address); } } break; case 77: // 32K banks = int_pow(2, chrsize) * 2; for (int i = 0; i < banks; i++) { // 2K Banks write_prg_byte(0x8000, i << 4); // CHR Bank 0 for (word address = 0x0; address < 0x800; address += 512) { dumpCHR(address); } } break; case 78: // 128K banks = int_pow(2, chrsize) / 2; for (int i = 0; i < banks; i++) { // 8K Banks write_prg_byte(0x8000, i << 4); // CHR Bank 0 for (word address = 0x0; address < 0x2000; address += 512) { // 8K Banks ($0000-$1FFF) dumpCHR(address); } } break; case 80: // 128K/256K case 82: // 128K/256K case 207: // 128K [CART SOMETIMES NEEDS POWERCYCLE] banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i += 4) { write_prg_byte(0x7EF2, i); // CHR Bank 2 [REGISTERS 0x7EF0/0x7EF1 WON'T WORK] write_prg_byte(0x7EF3, i + 1); // CHR Bank 3 write_prg_byte(0x7EF4, i + 2); // CHR Bank 4 write_prg_byte(0x7EF5, i + 3); // CHR Bank 5 for (word address = 0x1000; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 85: // 128K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i += 8) { write_prg_byte(0xA000, i); // CHR Bank 0 write_prg_byte(0xA008, i + 1); // CHR Bank 1 write_prg_byte(0xB000, i + 2); // CHR Bank 2 write_prg_byte(0xB008, i + 3); // CHR Bank 3 write_prg_byte(0xC000, i + 4); // CHR Bank 4 write_prg_byte(0xC008, i + 5); // CHR Bank 5 write_prg_byte(0xD000, i + 6); // CHR Bank 6 write_prg_byte(0xD008, i + 7); // CHR Bank 7 for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 86: // 64K banks = int_pow(2, chrsize) / 2; for (int i = 0; i < banks; i++) { // 8K Banks if (i < 4) write_prg_byte(0x6000, i & 0x3); else write_prg_byte(0x6000, (i | 0x40) & 0x43); for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 87: // 16K/32K banks = int_pow(2, chrsize) / 2; for (int i = 0; i < banks; i++) { // 16K/32K write_prg_byte(0x6000, (((i & 0x1) << 1) | ((i & 0x2) >> 1))); for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 88: // 128K case 95: // 32K case 154: // 128K case 206: // 16K/32K/64K banks = int_pow(2, chrsize) * 4; for (int i = 0; i < banks; i += 2) { // 1K Banks if (i < 64) { write_prg_byte(0x8000, 0); // CHR Command ($0000-$07FF) 2K Bank write_prg_byte(0x8001, i & 0x3F); // CHR Bank for (word address = 0x0; address < 0x800; address += 512) { dumpCHR(address); } } else { write_prg_byte(0x8000, 2); // CHR Command ($1000-$13FF) 1K Bank write_prg_byte(0x8001, i); // CHR Bank write_prg_byte(0x8000, 3); // CHR Command ($1400-$17FF) 1K Bank write_prg_byte(0x8001, i + 1); // CHR Bank for (word address = 0x1000; address < 0x1800; address += 512) { dumpCHR(address); } } } break; case 89: // 128K banks = int_pow(2, chrsize) / 2; for (int i = 0; i < banks; i++) { // 8K Banks if (i < 8) write_prg_byte(0x8000, i & 0x7); else write_prg_byte(0x8000, (i | 0x80) & 0x87); for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 92: // 128K banks = int_pow(2, chrsize) / 2; write_prg_byte(0x8000, 0); // Reset Register for (int i = 0; i < banks; i++) { // 8K Banks write_prg_byte(0x8000, i | 0x40); // CHR Command + Bank write_prg_byte(0x8000, i); // CHR Bank for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 140: // 32K/128K banks = int_pow(2, chrsize) / 2; for (int i = 0; i < banks; i++) { // 8K Banks write_prg_byte(0x6000, i); for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; case 184: // 16K/32K banks = int_pow(2, chrsize); for (int i = 0; i < banks; i++) { // 4K Banks write_prg_byte(0x6000, i); // CHR LOW (Bits 0-2) ($0000-$0FFF) for (word address = 0x0; address < 0x1000; address += 512) { // 4K Banks ($0000-$0FFF) dumpCHR(address); } } break; case 185: // 8K [READ 32K TO OVERRIDE LOCKOUT] for (int i = 0; i < 4; i++) { // Read 32K to locate valid 8K write_prg_byte(0x8000, i); byte chrcheck = read_chr_byte(0); for (word address = 0x0; address < 0x2000; address += 512) { for (int x = 0; x < 512; x++) { sdBuffer[x] = read_chr_byte(address + x); } if (chrcheck != 0xFF) sdFile.write(sdBuffer, 512); } } break; case 210: // 128K/256K banks = int_pow(2, chrsize) * 4; write_prg_byte(0xE800, 0xC0); // CHR RAM DISABLE (Bit 6 and 7) [WRITE NO RAM] for (int i = 0; i < banks; i += 8) { write_prg_byte(0x8000, i); // CHR Bank 0 write_prg_byte(0x8800, i + 1); // CHR Bank 1 write_prg_byte(0x9000, i + 2); // CHR Bank 2 write_prg_byte(0x9800, i + 3); // CHR Bank 3 write_prg_byte(0xA000, i + 4); // CHR Bank 4 write_prg_byte(0xA800, i + 5); // CHR Bank 5 write_prg_byte(0xB000, i + 6); // CHR Bank 6 write_prg_byte(0xB800, i + 7); // CHR Bank 7 for (word address = 0x0; address < 0x2000; address += 512) { dumpCHR(address); } } break; } sdFile.flush(); sdFile.close(); println_Msg(F("CHR FILE DUMPED!")); println_Msg(F("")); display_Update(); calcCRC(fileName, chr * 1024); } } set_address(0); PHI2_HI; ROMSEL_HI; LED_GREEN_OFF; } /****************************************** RAM Functions *****************************************/ void readRAM() { display_Clear(); display_Update(); LED_BLUE_ON; LED_GREEN_ON; set_address(0); _delay_us(1); if (ramsize == 0) { println_Msg(F("RAM SIZE 0K")); display_Update(); } else { CreateRAMFileInSD(); word base = 0x6000; if (sdFile) { switch (mapper) { case 1: case 155: // 8K/16K/32K banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 for (int i = 0; i < banks; i++) { // 8K Banks ($6000-$7FFF) write_prg_byte(0x8000, 0x80); // Clear Register write_mmc1_byte(0x8000, 1 << 3); write_mmc1_byte(0xE000, 0); if (banks == 4) // 32K write_mmc1_byte(0xA000, i << 2); else write_mmc1_byte(0xA000, i << 3); for (word address = 0x0; address < 0x2000; address += 512) { // 8K dumpPRG(base, address); } } break; case 5: // 8K/16K/32K write_prg_byte(0x5100, 3); // 8K PRG Banks banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 if (banks == 2) { // 16K - Split SRAM Chips 8K/8K for (int i = 0; i < (banks / 2); i++) { // Chip 1 write_prg_byte(0x5113, i); for (word address = 0; address < 0x2000; address += 512) { // 8K dumpMMC5RAM(base, address); } } for (int j = 4; j < (banks / 2) + 4; j++) { // Chip 2 write_prg_byte(0x5113, j); for (word address = 0; address < 0x2000; address += 512) { // 8K dumpMMC5RAM(base, address); } } } else { // 8K/32K Single SRAM Chip for (int i = 0; i < banks; i++) { // banks = 1 or 4 write_prg_byte(0x5113, i); for (word address = 0; address < 0x2000; address += 512) { // 8K dumpMMC5RAM(base, address); } } } break; case 16: // 256-byte EEPROM 24C02 case 159: // 128-byte EEPROM 24C01 [Little Endian] if (mapper == 159) eepsize = 128; else eepsize = 256; for (word address = 0; address < eepsize; address++) { EepromREAD(address); } sdFile.write(sdBuffer, eepsize); // display_Clear(); // TEST PURPOSES - DISPLAY EEPROM DATA break; default: if ((mapper == 4) || (mapper == 118)) // 8K write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect else if (mapper == 19) { for (int i = 0; i < 64; i++) { // Init Register write_ram_byte(0xE000, 0); } } else if ((mapper == 21) || (mapper == 25)) // 8K write_prg_byte(0x8000, 0); else if (mapper == 26) // 8K write_prg_byte(0xB003, 0x80); // PRG RAM ENABLE else if (mapper == 68) // 8K write_reg_byte(0xF000, 0x10); // PRG RAM ENABLE [WRITE RAM SAFE] else if (mapper == 69) { // 8K write_prg_byte(0x8000, 8); // Command Register - PRG Bank 0 write_prg_byte(0xA000, 0xC0); // Parameter Register - PRG RAM Enabled, PRG RAM, Bank 0 to $6000-$7FFF } else if (mapper == 85) // 8K write_ram_byte(0xE000, 0x80); // PRG RAM ENABLE else if (mapper == 153) // 8K write_prg_byte(0x800D, 0x20); // PRG RAM Chip Enable for (word address = 0; address < 0x2000; address += 512) { // 8K dumpPRG(base, address); } if (mapper == 85) // 8K write_reg_byte(0xE000, 0); // PRG RAM DISABLE [WRITE RAM SAFE] break; } sdFile.flush(); sdFile.close(); println_Msg(F("RAM FILE DUMPED!")); println_Msg(F("")); display_Update(); if ((mapper == 16) || (mapper == 159)) calcCRC(fileName, eepsize); else calcCRC(fileName, ram * 1024); } } set_address(0); PHI2_HI; ROMSEL_HI; LED_BLUE_OFF; LED_GREEN_OFF; } void writeRAM () { display_Clear(); if (ramsize == 0) { LED_RED_ON; println_Msg(F("RAM SIZE 0K")); display_Update(); } else { fileBrowser(F("Select RAM File")); word base = 0x6000; sd.chdir(); sprintf(filePath, "%s/%s", filePath, fileName); println_Msg(F("Writing File: ")); println_Msg(filePath); println_Msg(fileName); display_Update(); //open file on sd card if (sdFile.open(filePath, O_READ)) { switch (mapper) { case 1: case 155: banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 for (int i = 0; i < banks; i++) { // 8K Banks ($6000-$7FFF) write_prg_byte(0x8000, 0x80); // Clear Register write_mmc1_byte(0x8000, 1 << 3); // PRG ROM MODE 32K write_mmc1_byte(0xE000, 0); // PRG RAM ENABLED if (banks == 4) // 32K write_mmc1_byte(0xA000, i << 2); else write_mmc1_byte(0xA000, i << 3); for (word address = 0x0; address < 0x2000; address += 512) { // 8K sdFile.read(sdBuffer, 512); for (int x = 0; x < 512; x++) { write_prg_byte(base + address + x, sdBuffer[x]); } } } break; case 5: // 8K/16K/32K write_prg_byte(0x5100, 3); // 8K PRG Banks banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 if (banks == 2) { // 16K - Split SRAM Chips 8K/8K [ETROM = 16K (ONLY 1ST 8K BATTERY BACKED)] for (int i = 0; i < (banks / 2); i++) { // Chip 1 write_prg_byte(0x5113, i); for (word address = 0; address < 0x2000; address += 512) { // 8K writeMMC5RAM(base, address); } } for (int j = 4; j < (banks / 2) + 4; j++) { // Chip 2 write_prg_byte(0x5113, j); for (word address = 0; address < 0x2000; address += 512) { // 8K writeMMC5RAM(base, address); } } } else { // 8K/32K Single SRAM Chip [EKROM = 8K BATTERY BACKED, EWROM = 32K BATTERY BACKED] for (int i = 0; i < banks; i++) { // banks = 1 or 4 write_prg_byte(0x5113, i); for (word address = 0; address < 0x2000; address += 512) { // 8K writeMMC5RAM(base, address); } } } break; case 16: // 256-byte EEPROM 24C02 case 159: // 128-byte EEPROM 24C01 [Little Endian] if (mapper == 159) eepsize = 128; else eepsize = 256; sdFile.read(sdBuffer, eepsize); for (word address = 0; address < eepsize; address++) { EepromWRITE(address); if ((address % 128) == 0) display_Clear(); print_Msg(F(".")); display_Update(); } break; default: if ((mapper == 4) || (mapper == 118)) // 8K write_prg_byte(0xA001, 0x80); // PRG RAM CHIP ENABLE - Chip Enable, Allow Writes else if (mapper == 19) { for (int i = 0; i < 64; i++) { // Init Register write_ram_byte(0xF800, 0x40); // PRG RAM WRITE ENABLE } write_ram_byte(0xF800, 0x40); // PRG RAM WRITE ENABLE } else if ((mapper == 21) || (mapper == 25)) // 8K write_prg_byte(0x8000, 0); else if (mapper == 26) // 8K write_prg_byte(0xB003, 0x80); // PRG RAM ENABLE // else if (mapper == 68) // 8K // write_reg_byte(0xF000, 0x10); // PRG RAM ENABLE [WRITE RAM SAFE] else if (mapper == 69) { // 8K write_prg_byte(0x8000, 8); // Command Register - PRG Bank 0 write_prg_byte(0xA000, 0xC0); // Parameter Register - PRG RAM Enabled, PRG RAM, Bank 0 to $6000-$7FFF } else if (mapper == 85) // 8K write_ram_byte(0xE000, 0x80); // PRG RAM ENABLE else if (mapper == 153) // 8K write_prg_byte(0x800D, 0x20); // PRG RAM Chip Enable for (word address = 0; address < 0x2000; address += 512) { // 8K sdFile.read(sdBuffer, 512); for (int x = 0; x < 512; x++) { write_prg_byte(base + address + x, sdBuffer[x]); } } if ((mapper == 4) || (mapper == 118)) // 8K write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect else if (mapper == 19) write_ram_byte(0xF800, 0x0F); // PRG RAM WRITE PROTECT else if (mapper == 26) // 8K write_prg_byte(0xB003, 0); // PRG RAM DISABLE // else if (mapper == 68) // 8K // write_reg_byte(0xF000, 0x00); // PRG RAM DISABLE [WRITE RAM SAFE] else if (mapper == 69) { // 8K write_prg_byte(0x8000, 8); // Command Register - PRG Bank 0 write_prg_byte(0xA000, 0); // Parameter Register - PRG RAM Disabled, PRG ROM, Bank 0 to $6000-$7FFF } else if (mapper == 85) // 8K write_reg_byte(0xE000, 0); // PRG RAM DISABLE [WRITE RAM SAFE] break; } sdFile.close(); LED_GREEN_ON; println_Msg(F("")); println_Msg(F("RAM FILE WRITTEN!")); display_Update(); } else { LED_RED_ON; println_Msg(F("SD ERROR")); display_Update(); } } display_Clear(); LED_RED_OFF; LED_GREEN_OFF; sd.chdir(); // root filePath[0] = '\0'; // Reset filePath } /****************************************** Eeprom Functions *****************************************/ // EEPROM MAPPING // 00-01 FOLDER # // 02-05 SNES/GB READER SETTINGS // 06 LED - ON/OFF [SNES/GB] // 07 MAPPER // 08 PRG SIZE // 09 CHR SIZE // 10 RAM SIZE void resetEEPROM() { EEPROM_writeAnything(0, 0); // FOLDER # EEPROM_writeAnything(2, 0); // CARTMODE EEPROM_writeAnything(3, 0); // RETRY EEPROM_writeAnything(4, 0); // STATUS EEPROM_writeAnything(5, 0); // UNKNOWNCRC EEPROM_writeAnything(6, 1); // LED (RESET TO ON) EEPROM_writeAnything(7, 0); // MAPPER EEPROM_writeAnything(8, 0); // PRG SIZE EEPROM_writeAnything(9, 0); // CHR SIZE EEPROM_writeAnything(10, 0); // RAM SIZE } void EepromStart_NES() { write_prg_byte(0x800D, 0x00); // sda low, scl low write_prg_byte(0x800D, 0x60); // sda, scl high write_prg_byte(0x800D, 0x20); // sda low, scl high write_prg_byte(0x800D, 0x00); // START } void EepromStop_NES() { write_prg_byte(0x800D, 0x00); // sda, scl low write_prg_byte(0x800D, 0x20); // sda low, scl high write_prg_byte(0x800D, 0x60); // sda, scl high write_prg_byte(0x800D, 0x40); // sda high, scl low write_prg_byte(0x800D, 0x00); // STOP } void EepromSet0_NES() { write_prg_byte(0x800D, 0x00); // sda low, scl low write_prg_byte(0x800D, 0x20); // sda low, scl high // 0 write_prg_byte(0x800D, 0x00); // sda low, scl low } void EepromSet1_NES() { write_prg_byte(0x800D, 0x40); // sda high, scl low write_prg_byte(0x800D, 0x60); // sda high, scl high // 1 write_prg_byte(0x800D, 0x40); // sda high, scl low write_prg_byte(0x800D, 0x00); // sda low, scl low } void EepromStatus_NES() { // ACK write_prg_byte(0x800D, 0x40); // sda high, scl low write_prg_byte(0x800D, 0x60); // sda high, scl high write_prg_byte(0x800D, 0xE0); // sda high, scl high, read high byte eepStatus = 1; do { eepStatus = (read_prg_byte(0x6000) & 0x10) >> 4; delayMicroseconds(4); } while (eepStatus == 1); write_prg_byte(0x800D, 0x40); // sda high, scl low } void EepromReadData_NES() { // read serial data into buffer for (int i = 0; i < 8; i++) { write_prg_byte(0x800D, 0x60); // sda high, scl high, read low write_prg_byte(0x800D, 0xE0); // sda high, scl high, read high eepbit[i] = (read_prg_byte(0x6000) & 0x10) >> 4; // Read 0x6000 with Mask 0x10 (bit 4) write_prg_byte(0x800D, 0x40); // sda high, scl low } } void EepromDevice_NES() { // 24C02 ONLY EepromSet1_NES(); EepromSet0_NES(); EepromSet1_NES(); EepromSet0_NES(); EepromSet0_NES(); // A2 EepromSet0_NES(); // A1 EepromSet0_NES(); // A0 } void EepromReadMode_NES() { EepromSet1_NES(); // READ EepromStatus_NES(); // ACK } void EepromWriteMode_NES() { EepromSet0_NES(); // WRITE EepromStatus_NES(); // ACK } void EepromFinish_NES() { write_prg_byte(0x800D, 0x00); // sda low, scl low write_prg_byte(0x800D, 0x40); // sda high, scl low write_prg_byte(0x800D, 0x60); // sda high, scl high write_prg_byte(0x800D, 0x40); // sda high, scl low write_prg_byte(0x800D, 0x00); // sda low, scl low } void EepromSetAddress01(byte address) { // 24C01 [Little Endian] for (int i = 0; i < 7; i++) { if (address & 0x1) // Bit is HIGH EepromSet1_NES(); else // Bit is LOW EepromSet0_NES(); address >>= 1; // rotate to the next bit } } void EepromSetAddress02(byte address) { // 24C02 for (int i = 0; i < 8; i++) { if ((address >> 7) & 0x1) // Bit is HIGH EepromSet1_NES(); else // Bit is LOW EepromSet0_NES(); address <<= 1; // rotate to the next bit } EepromStatus_NES(); // ACK } void EepromWriteData01() { // 24C01 [Little Endian] for (int i = 0; i < 8; i++) { if (eeptemp & 0x1) // Bit is HIGH EepromSet1_NES(); else // Bit is LOW EepromSet0_NES(); eeptemp >>= 1; // rotate to the next bit } EepromStatus_NES(); // ACK } void EepromWriteData02() { // 24C02 for (int i = 0; i < 8; i++) { if ((eeptemp >> 7) & 0x1) // Bit is HIGH EepromSet1_NES(); else // Bit is LOW EepromSet0_NES(); eeptemp <<= 1; // rotate to the next bit } EepromStatus_NES(); // ACK } void EepromREAD(byte address) { EepromStart_NES(); // START if (mapper == 159) { // 24C01 EepromSetAddress01(address); // 24C01 [Little Endian] EepromReadMode_NES(); EepromReadData_NES(); EepromFinish_NES(); EepromStop_NES(); // STOP // OR 8 bits into byte eeptemp = eepbit[7] << 7 | eepbit[6] << 6 | eepbit[5] << 5 | eepbit[4] << 4 | eepbit[3] << 3 | eepbit[2] << 2 | eepbit[1] << 1 | eepbit[0]; } else { // 24C02 EepromDevice_NES(); // DEVICE [1010] + ADDR [A2-A0] EepromWriteMode_NES(); EepromSetAddress02(address); EepromStart_NES(); // START EepromDevice_NES(); // DEVICE [1010] + ADDR [A2-A0] EepromReadMode_NES(); EepromReadData_NES(); EepromFinish_NES(); EepromStop_NES(); // STOP // OR 8 bits into byte eeptemp = eepbit[0] << 7 | eepbit[1] << 6 | eepbit[2] << 5 | eepbit[3] << 4 | eepbit[4] << 3 | eepbit[5] << 2 | eepbit[6] << 1 | eepbit[7]; } sdBuffer[address] = eeptemp; } void EepromWRITE(byte address) { eeptemp = sdBuffer[address]; EepromStart_NES(); // START if (mapper == 159) { // 24C01 EepromSetAddress01(address); // 24C01 [Little Endian] EepromWriteMode_NES(); EepromWriteData01(); // 24C01 [Little Endian] } else { // 24C02 EepromDevice_NES(); // DEVICE [1010] + ADDR [A2-A0] EepromWriteMode_NES(); EepromSetAddress02(address); EepromWriteData02(); } EepromStop_NES(); // STOP } //****************************************** // End of File //******************************************