mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-14 08:55:06 +01:00
1042 lines
26 KiB
C++
1042 lines
26 KiB
C++
//******************************************
|
|
// GAME BOY MODULE
|
|
//******************************************
|
|
|
|
/******************************************
|
|
Variables
|
|
*****************************************/
|
|
// Game Boy
|
|
int sramBanks;
|
|
int romBanks;
|
|
uint16_t sramEndAddress = 0;
|
|
|
|
/******************************************
|
|
Menu
|
|
*****************************************/
|
|
// GBx start menu
|
|
static const char gbxMenuItem1[] PROGMEM = "Game Boy (Color)";
|
|
static const char gbxMenuItem2[] PROGMEM = "Game Boy Advance";
|
|
static const char gbxMenuItem3[] PROGMEM = "NPower GB Memory";
|
|
static const char gbxMenuItem4[] PROGMEM = "GB Smart";
|
|
static const char* const menuOptionsGBx[] PROGMEM = {gbxMenuItem1, gbxMenuItem2, gbxMenuItem3, gbxMenuItem4};
|
|
|
|
// GB menu items
|
|
static const char GBMenuItem1[] PROGMEM = "Read Rom";
|
|
static const char GBMenuItem2[] PROGMEM = "Read Save";
|
|
static const char GBMenuItem3[] PROGMEM = "Write Save";
|
|
static const char GBMenuItem4[] PROGMEM = "Flash MBC3 cart";
|
|
static const char GBMenuItem5[] PROGMEM = "Flash MBC5 cart";
|
|
static const char GBMenuItem6[] PROGMEM = "Reset";
|
|
static const char* const menuOptionsGB[] PROGMEM = {GBMenuItem1, GBMenuItem2, GBMenuItem3, GBMenuItem4, GBMenuItem5, GBMenuItem6};
|
|
|
|
// Start menu for both GB and GBA
|
|
void gbxMenu() {
|
|
// create menu with title and 3 options to choose from
|
|
unsigned char gbType;
|
|
// Copy menuOptions out of progmem
|
|
convertPgm(menuOptionsGBx, 4);
|
|
gbType = question_box(F("Select Game Boy"), menuOptions, 4, 0);
|
|
|
|
// wait for user choice to come back from the question box menu
|
|
switch (gbType)
|
|
{
|
|
case 0:
|
|
display_Clear();
|
|
display_Update();
|
|
setup_GB();
|
|
mode = mode_GB;
|
|
break;
|
|
|
|
case 1:
|
|
display_Clear();
|
|
display_Update();
|
|
setup_GBA();
|
|
mode = mode_GBA;
|
|
break;
|
|
|
|
case 2:
|
|
display_Clear();
|
|
display_Update();
|
|
setup_GBM();
|
|
mode = mode_GBM;
|
|
break;
|
|
|
|
case 3:
|
|
display_Clear();
|
|
display_Update();
|
|
setup_GBSmart();
|
|
mode = mode_GB_GBSmart;
|
|
break;
|
|
}
|
|
}
|
|
|
|
void gbMenu() {
|
|
// create menu with title and 6 options to choose from
|
|
unsigned char mainMenu;
|
|
// Copy menuOptions out of progmem
|
|
convertPgm(menuOptionsGB, 6);
|
|
mainMenu = question_box(F("GB Cart Reader"), menuOptions, 6, 0);
|
|
|
|
// wait for user choice to come back from the question box menu
|
|
switch (mainMenu)
|
|
{
|
|
case 0:
|
|
display_Clear();
|
|
// Change working dir to root
|
|
sd.chdir("/");
|
|
readROM_GB();
|
|
compare_checksum_GB();
|
|
break;
|
|
|
|
case 1:
|
|
display_Clear();
|
|
// Does cartridge have SRAM
|
|
if (sramEndAddress > 0) {
|
|
// Change working dir to root
|
|
sd.chdir("/");
|
|
readSRAM_GB();
|
|
}
|
|
else {
|
|
print_Error(F("Cart has no Sram"), false);
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
display_Clear();
|
|
// Does cartridge have SRAM
|
|
if (sramEndAddress > 0) {
|
|
// Change working dir to root
|
|
sd.chdir("/");
|
|
writeSRAM_GB();
|
|
unsigned long wrErrors;
|
|
wrErrors = verifySRAM_GB();
|
|
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 {
|
|
print_Error(F("Cart has no Sram"), false);
|
|
}
|
|
break;
|
|
|
|
case 3:
|
|
// Change working dir to root
|
|
sd.chdir("/");
|
|
//MBC3
|
|
writeFlash_GB(3);
|
|
// Reset
|
|
wait();
|
|
resetArduino();
|
|
break;
|
|
|
|
case 4:
|
|
// Change working dir to root
|
|
sd.chdir("/");
|
|
//MBC5
|
|
writeFlash_GB(5);
|
|
// Reset
|
|
wait();
|
|
resetArduino();
|
|
break;
|
|
|
|
case 5:
|
|
resetArduino();
|
|
break;
|
|
}
|
|
println_Msg(F(""));
|
|
println_Msg(F("Press Button..."));
|
|
display_Update();
|
|
wait();
|
|
}
|
|
|
|
/******************************************
|
|
Setup
|
|
*****************************************/
|
|
void setup_GB() {
|
|
// Set RST(PH0) to Input
|
|
DDRH &= ~(1 << 0);
|
|
// Activate Internal Pullup Resistors
|
|
PORTH |= (1 << 0);
|
|
|
|
// Set Address Pins to Output
|
|
//A0-A7
|
|
DDRF = 0xFF;
|
|
//A8-A15
|
|
DDRK = 0xFF;
|
|
|
|
// Set Control Pins to Output CS(PH3) WR(PH5) RD(PH6)
|
|
DDRH |= (1 << 3) | (1 << 5) | (1 << 6);
|
|
// Output a high signal on all pins, pins are active low therefore everything is disabled now
|
|
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
|
|
|
|
// Set Data Pins (D0-D7) to Input
|
|
DDRC = 0x00;
|
|
// Disable Internal Pullups
|
|
//PORTC = 0x00;
|
|
|
|
delay(400);
|
|
|
|
// Print start page
|
|
getCartInfo_GB();
|
|
display_Clear();
|
|
if (strcmp(checksumStr, "00") != 0) {
|
|
println_Msg(F("GB Cart Info"));
|
|
print_Msg(F("Name: "));
|
|
println_Msg(romName);
|
|
print_Msg(F("Rom Type: "));
|
|
switch (romType) {
|
|
case 0: print_Msg(F("ROM ONLY")); break;
|
|
case 1: print_Msg(F("MBC1")); break;
|
|
case 2: print_Msg(F("MBC1+RAM")); break;
|
|
case 3: print_Msg(F("MBC1+RAM")); break;
|
|
case 5: print_Msg(F("MBC2")); break;
|
|
case 6: print_Msg(F("MBC2")); break;
|
|
case 8: print_Msg(F("ROM+RAM")); break;
|
|
case 9: print_Msg(F("ROM ONLY")); break;
|
|
case 11: print_Msg(F("MMM01")); break;
|
|
case 12: print_Msg(F("MMM01+RAM")); break;
|
|
case 13: print_Msg(F("MMM01+RAM")); break;
|
|
case 15: print_Msg(F("MBC3+TIMER")); break;
|
|
case 16: print_Msg(F("MBC3+TIMER+RAM")); break;
|
|
case 17: print_Msg(F("MBC3")); break;
|
|
case 18: print_Msg(F("MBC3+RAM")); break;
|
|
case 19: print_Msg(F("MBC3+RAM")); break;
|
|
case 21: print_Msg(F("MBC4")); break;
|
|
case 22: print_Msg(F("MBC4+RAM")); break;
|
|
case 23: print_Msg(F("MBC4+RAM")); break;
|
|
case 25: print_Msg(F("MBC5")); break;
|
|
case 26: print_Msg(F("MBC5+RAM")); break;
|
|
case 27: print_Msg(F("MBC5+RAM")); break;
|
|
case 28: print_Msg(F("MBC5+RUMBLE")); break;
|
|
case 29: print_Msg(F("MBC5+RUMBLE+RAM")); break;
|
|
case 30: print_Msg(F("MBC5+RUMBLE+RAM")); break;
|
|
case 252: print_Msg(F("Gameboy Camera")); break;
|
|
default: print_Msg(F("Not found"));
|
|
}
|
|
println_Msg(F(" "));
|
|
print_Msg(F("Rom Size: "));
|
|
switch (romSize) {
|
|
case 0: print_Msg(F("32KB")); break;
|
|
case 1: print_Msg(F("64KB")); break;
|
|
case 2: print_Msg(F("128KB")); break;
|
|
case 3: print_Msg(F("256KB")); break;
|
|
case 4: print_Msg(F("512KB")); break;
|
|
case 5: print_Msg(F("1MB")); break;
|
|
case 6: print_Msg(F("2MB")); break;
|
|
case 7: print_Msg(F("4MB")); break;
|
|
case 82: print_Msg(F("1.1MB")); break;
|
|
case 83: print_Msg(F("1.2MB")); break;
|
|
case 84: print_Msg(F("1.5MB)")); break;
|
|
default: print_Msg(F("Not found"));
|
|
}
|
|
println_Msg(F(""));
|
|
print_Msg(F("Banks: "));
|
|
println_Msg(romBanks);
|
|
|
|
print_Msg(F("Sram Size: "));
|
|
switch (sramSize) {
|
|
case 0:
|
|
if (romType == 6) {
|
|
print_Msg(F("512B"));
|
|
}
|
|
else {
|
|
print_Msg(F("None"));
|
|
}
|
|
break;
|
|
case 1: print_Msg(F("2KB")); break;
|
|
case 2: print_Msg(F("8KB")); break;
|
|
case 3: print_Msg(F("32KB")); break;
|
|
case 4: print_Msg(F("128KB")); break;
|
|
default: print_Msg(F("Not found"));
|
|
}
|
|
println_Msg(F(""));
|
|
print_Msg(F("Checksum: "));
|
|
println_Msg(checksumStr);
|
|
display_Update();
|
|
|
|
// Wait for user input
|
|
println_Msg(F("Press Button..."));
|
|
display_Update();
|
|
wait();
|
|
}
|
|
else {
|
|
print_Error(F("GAMEPAK ERROR"), true);
|
|
}
|
|
}
|
|
|
|
/******************************************
|
|
I/O Functions
|
|
*****************************************/
|
|
|
|
/******************************************
|
|
Low level functions
|
|
*****************************************/
|
|
// Switch data pins to read
|
|
void dataIn_GB() {
|
|
// Set to Input
|
|
DDRC = 0x00;
|
|
}
|
|
|
|
byte readByte_GB(word myAddress) {
|
|
PORTF = myAddress & 0xFF;
|
|
PORTK = (myAddress >> 8) & 0xFF;
|
|
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
// Switch CS(PH3) and RD(PH6) to LOW
|
|
PORTH &= ~((1 << 3) | (1 << 6));
|
|
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
// Read
|
|
byte tempByte = PINC;
|
|
|
|
// Switch CS(PH3) and RD(PH6) to HIGH
|
|
PORTH |= (1 << 3) | (1 << 6);
|
|
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
return tempByte;
|
|
}
|
|
|
|
void writeByte_GB(int myAddress, uint8_t myData) {
|
|
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");
|
|
|
|
// Pull WR(PH5) low
|
|
PORTH &= ~(1 << 5);
|
|
|
|
// Leave WE low for at least 60ns
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
|
|
// Pull WR(PH5) HIGH
|
|
PORTH |= (1 << 5);
|
|
|
|
// Leave WE high for at least 50ns
|
|
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
|
}
|
|
|
|
/******************************************
|
|
Game Boy functions
|
|
*****************************************/
|
|
// Read Cartridge Header
|
|
void getCartInfo_GB() {
|
|
romType = readByte_GB(0x0147);
|
|
romSize = readByte_GB(0x0148);
|
|
sramSize = readByte_GB(0x0149);
|
|
|
|
// ROM banks
|
|
romBanks = 2; // Default 32K
|
|
if (romSize >= 1) { // Calculate rom size
|
|
romBanks = 2 << romSize;
|
|
}
|
|
|
|
// RAM banks
|
|
sramBanks = 0; // Default 0K RAM
|
|
if (romType == 6) {
|
|
sramBanks = 1;
|
|
}
|
|
switch (sramSize) {
|
|
case 2:
|
|
sramBanks = 1;
|
|
break;
|
|
case 3:
|
|
sramBanks = 4;
|
|
break;
|
|
case 4:
|
|
sramBanks = 16;
|
|
break;
|
|
case 5:
|
|
sramBanks = 8;
|
|
break;
|
|
}
|
|
|
|
// RAM end address
|
|
if (romType == 6) {
|
|
sramEndAddress = 0xA1FF; // MBC2 512bytes (nibbles)
|
|
}
|
|
if (sramSize == 1) {
|
|
sramEndAddress = 0xA7FF; // 2K RAM
|
|
}
|
|
if (sramSize > 1) {
|
|
sramEndAddress = 0xBFFF; // 8K RAM
|
|
}
|
|
|
|
// Get Checksum as string
|
|
sprintf(checksumStr, "%02X%02X", readByte_GB(0x014E), readByte_GB(0x014F));
|
|
|
|
// Get name
|
|
byte myByte = 0;
|
|
byte myLength = 0;
|
|
|
|
for (int addr = 0x0134; addr <= 0x13C; addr++) {
|
|
myByte = readByte_GB(addr);
|
|
if (((char(myByte) >= 48 && char(myByte) <= 57) || (char(myByte) >= 65 && char(myByte) <= 122)) && myLength < 15) {
|
|
romName[myLength] = char(myByte);
|
|
myLength++;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Dump ROM
|
|
void readROM_GB() {
|
|
// Get name, add extension and convert to char array for sd lib
|
|
strcpy(fileName, romName);
|
|
strcat(fileName, ".GB");
|
|
|
|
// create a new folder for the rom file
|
|
EEPROM_readAnything(0, foldern);
|
|
sprintf(folder, "GB/ROM/%s/%d", romName, foldern);
|
|
sd.mkdir(folder, true);
|
|
sd.chdir(folder);
|
|
|
|
display_Clear();
|
|
print_Msg(F("Saving to "));
|
|
print_Msg(folder);
|
|
println_Msg(F("/..."));
|
|
display_Update();
|
|
|
|
// write new folder number back to eeprom
|
|
foldern = foldern + 1;
|
|
EEPROM_writeAnything(0, foldern);
|
|
|
|
//open file on sd card
|
|
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
|
print_Error(F("Can't create file on SD"), true);
|
|
}
|
|
|
|
uint16_t romAddress = 0;
|
|
|
|
// Read number of banks and switch banks
|
|
for (uint16_t bank = 1; bank < romBanks; bank++) {
|
|
// Switch data pins to output
|
|
dataOut();
|
|
|
|
if (romType >= 5) { // MBC2 and above
|
|
writeByte_GB(0x2100, bank); // Set ROM bank
|
|
}
|
|
else { // MBC1
|
|
writeByte_GB(0x6000, 0); // Set ROM Mode
|
|
writeByte_GB(0x4000, bank >> 5); // Set bits 5 & 6 (01100000) of ROM bank
|
|
writeByte_GB(0x2000, bank & 0x1F); // Set bits 0 & 4 (00011111) of ROM bank
|
|
}
|
|
|
|
// Switch data pins to intput
|
|
dataIn_GB();
|
|
|
|
if (bank > 1) {
|
|
romAddress = 0x4000;
|
|
}
|
|
|
|
// Read up to 7FFF per bank
|
|
while (romAddress <= 0x7FFF) {
|
|
uint8_t readData[512];
|
|
for (int i = 0; i < 512; i++) {
|
|
readData[i] = readByte_GB(romAddress + i);
|
|
}
|
|
myFile.write(readData, 512);
|
|
romAddress += 512;
|
|
}
|
|
}
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
}
|
|
|
|
unsigned int calc_checksum_GB (char* fileName, char* folder) {
|
|
unsigned int calcChecksum = 0;
|
|
// int calcFilesize = 0; // unused
|
|
unsigned long i = 0;
|
|
int c = 0;
|
|
|
|
if (strcmp(folder, "root") != 0)
|
|
sd.chdir(folder);
|
|
|
|
// If file exists
|
|
if (myFile.open(fileName, O_READ)) {
|
|
//calcFilesize = myFile.fileSize() * 8 / 1024 / 1024; // unused
|
|
for (i = 0; i < (myFile.fileSize() / 512); i++) {
|
|
myFile.read(sdBuffer, 512);
|
|
for (c = 0; c < 512; c++) {
|
|
calcChecksum += sdBuffer[c];
|
|
}
|
|
}
|
|
myFile.close();
|
|
sd.chdir();
|
|
// Subtract checksum bytes
|
|
calcChecksum -= readByte_GB(0x014E);
|
|
calcChecksum -= readByte_GB(0x014F);
|
|
|
|
// Return result
|
|
return (calcChecksum);
|
|
}
|
|
// Else show error
|
|
else {
|
|
print_Error(F("DUMP ROM 1ST"), false);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
boolean compare_checksum_GB() {
|
|
|
|
println_Msg(F("Calculating Checksum"));
|
|
display_Update();
|
|
|
|
strcpy(fileName, romName);
|
|
strcat(fileName, ".GB");
|
|
|
|
// last used rom folder
|
|
EEPROM_readAnything(0, foldern);
|
|
sprintf(folder, "GB/ROM/%s/%d", romName, foldern - 1);
|
|
|
|
char calcsumStr[5];
|
|
sprintf(calcsumStr, "%04X", calc_checksum_GB(fileName, folder));
|
|
|
|
if (strcmp(calcsumStr, checksumStr) == 0) {
|
|
print_Msg(F("Result: "));
|
|
println_Msg(calcsumStr);
|
|
println_Msg(F("Checksum matches"));
|
|
display_Update();
|
|
return 1;
|
|
}
|
|
else {
|
|
print_Msg(F("Result: "));
|
|
println_Msg(calcsumStr);
|
|
print_Error(F("Checksum Error"), false);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// Read RAM
|
|
void readSRAM_GB() {
|
|
// Does cartridge have RAM
|
|
if (sramEndAddress > 0) {
|
|
|
|
// Get name, add extension and convert to char array for sd lib
|
|
strcpy(fileName, romName);
|
|
strcat(fileName, ".sav");
|
|
|
|
// create a new folder for the save file
|
|
EEPROM_readAnything(0, foldern);
|
|
sprintf(folder, "GB/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);
|
|
}
|
|
|
|
dataIn_GB();
|
|
|
|
// MBC2 Fix (unknown why this fixes it, maybe has to read ROM before RAM?)
|
|
readByte_GB(0x0134);
|
|
|
|
dataOut();
|
|
if (romType <= 4) { // MBC1
|
|
writeByte_GB(0x6000, 1); // Set RAM Mode
|
|
}
|
|
|
|
// Initialise MBC
|
|
writeByte_GB(0x0000, 0x0A);
|
|
|
|
// Switch SRAM banks
|
|
for (uint8_t bank = 0; bank < sramBanks; bank++) {
|
|
dataOut();
|
|
writeByte_GB(0x4000, bank);
|
|
|
|
// Read SRAM
|
|
dataIn_GB();
|
|
for (uint16_t sramAddress = 0xA000; sramAddress <= sramEndAddress; sramAddress += 64) {
|
|
uint8_t readData[64];
|
|
for (uint8_t i = 0; i < 64; i++) {
|
|
readData[i] = readByte_GB(sramAddress + i);
|
|
}
|
|
myFile.write(readData, 64);
|
|
}
|
|
}
|
|
|
|
// Disable SRAM
|
|
dataOut();
|
|
writeByte_GB(0x0000, 0x00);
|
|
dataIn_GB();
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
|
|
// Signal end of process
|
|
print_Msg(F("Saved to "));
|
|
print_Msg(folder);
|
|
println_Msg(F("/"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Error(F("Cart has no SRAM"), false);
|
|
}
|
|
}
|
|
|
|
// Write RAM
|
|
void writeSRAM_GB() {
|
|
// Does cartridge have SRAM
|
|
if (sramEndAddress > 0) {
|
|
|
|
filePath[0] = '\0';
|
|
sd.chdir("/");
|
|
fileBrowser(F("Select sav file"));
|
|
// Create filepath
|
|
sprintf(filePath, "%s/%s", filePath, fileName);
|
|
|
|
//open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
// Set pins to input
|
|
dataIn_GB();
|
|
|
|
// MBC2 Fix (unknown why this fixes it, maybe has to read ROM before RAM?)
|
|
readByte_GB(0x0134);
|
|
|
|
dataOut();
|
|
|
|
if (romType <= 4) { // MBC1
|
|
writeByte_GB(0x6000, 1); // Set RAM Mode
|
|
}
|
|
|
|
// Initialise MBC
|
|
writeByte_GB(0x0000, 0x0A);
|
|
|
|
// Switch RAM banks
|
|
for (uint8_t bank = 0; bank < sramBanks; bank++) {
|
|
writeByte_GB(0x4000, bank);
|
|
|
|
// Write RAM
|
|
for (uint16_t sramAddress = 0xA000; sramAddress <= sramEndAddress; sramAddress++) {
|
|
// Pull CS(PH3) LOW
|
|
PORTH &= ~(1 << 3);
|
|
// Write to RAM
|
|
writeByte_GB(sramAddress, myFile.read());
|
|
asm volatile("nop");
|
|
asm volatile("nop");
|
|
asm volatile("nop");
|
|
// Pull CS(PH3) HIGH
|
|
PORTH |= (1 << 3) ;
|
|
}
|
|
}
|
|
// Disable RAM
|
|
writeByte_GB(0x0000, 0x00);
|
|
|
|
// Set pins to input
|
|
dataIn_GB();
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
display_Clear();
|
|
println_Msg(F("SRAM writing finished"));
|
|
display_Update();
|
|
|
|
}
|
|
else {
|
|
print_Error(F("File doesnt exist"), false);
|
|
}
|
|
}
|
|
else {
|
|
print_Error(F("Cart has no SRAM"), false);
|
|
}
|
|
}
|
|
|
|
// Check if the SRAM was written without any error
|
|
unsigned long verifySRAM_GB() {
|
|
|
|
//open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
|
|
// Variable for errors
|
|
writeErrors = 0;
|
|
|
|
dataIn_GB();
|
|
|
|
// MBC2 Fix (unknown why this fixes it, maybe has to read ROM before RAM?)
|
|
readByte_GB(0x0134);
|
|
|
|
// Does cartridge have RAM
|
|
if (sramEndAddress > 0) {
|
|
dataOut();
|
|
if (romType <= 4) { // MBC1
|
|
writeByte_GB(0x6000, 1); // Set RAM Mode
|
|
}
|
|
|
|
// Initialise MBC
|
|
writeByte_GB(0x0000, 0x0A);
|
|
|
|
// Switch SRAM banks
|
|
for (uint8_t bank = 0; bank < sramBanks; bank++) {
|
|
dataOut();
|
|
writeByte_GB(0x4000, bank);
|
|
|
|
// Read SRAM
|
|
dataIn_GB();
|
|
for (uint16_t sramAddress = 0xA000; sramAddress <= sramEndAddress; sramAddress += 64) {
|
|
//fill sdBuffer
|
|
myFile.read(sdBuffer, 64);
|
|
for (int c = 0; c < 64; c++) {
|
|
if (readByte_GB(sramAddress + c) != sdBuffer[c]) {
|
|
writeErrors++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
dataOut();
|
|
// Disable RAM
|
|
writeByte_GB(0x0000, 0x00);
|
|
dataIn_GB();
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
return writeErrors;
|
|
}
|
|
else {
|
|
print_Error(F("Can't open file"), true);
|
|
}
|
|
}
|
|
|
|
// Write 29F032 flashrom
|
|
// A0-A13 directly connected to cart edge -> 16384(0x0-0x3FFF) bytes per bank -> 256(0x0-0xFF) banks
|
|
// A14-A21 connected to MBC5
|
|
void writeFlash_GB(byte MBC) {
|
|
// Launch filebrowser
|
|
filePath[0] = '\0';
|
|
sd.chdir("/");
|
|
fileBrowser(F("Select file"));
|
|
display_Clear();
|
|
|
|
// Create filepath
|
|
sprintf(filePath, "%s/%s", filePath, fileName);
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
// Get rom size from file
|
|
myFile.seekCur(0x147);
|
|
romType = myFile.read();
|
|
romSize = myFile.read();
|
|
// Go back to file beginning
|
|
myFile.seekSet(0);
|
|
|
|
// ROM banks
|
|
romBanks = 2; // Default 32K
|
|
if (romSize >= 1) { // Calculate rom size
|
|
romBanks = 2 << romSize;
|
|
}
|
|
|
|
// Set data pins to output
|
|
dataOut();
|
|
|
|
// Set ROM bank hi 0
|
|
writeByte_GB(0x3000, 0);
|
|
// Set ROM bank low 0
|
|
writeByte_GB(0x2000, 0);
|
|
delay(100);
|
|
|
|
// Reset flash
|
|
writeByte_GB(0x555, 0xf0);
|
|
delay(100);
|
|
|
|
// ID command sequence
|
|
writeByte_GB(0x555, 0xaa);
|
|
writeByte_GB(0x2aa, 0x55);
|
|
writeByte_GB(0x555, 0x90);
|
|
|
|
dataIn_GB();
|
|
|
|
// Read the two id bytes into a string
|
|
sprintf(flashid, "%02X%02X", readByte_GB(0), readByte_GB(1));
|
|
|
|
if (strcmp(flashid, "04D4") == 0) {
|
|
println_Msg(F("MBM29F033C"));
|
|
print_Msg(F("Banks: "));
|
|
print_Msg(romBanks);
|
|
println_Msg(F("/256"));
|
|
display_Update();
|
|
}
|
|
else if (strcmp(flashid, "0141") == 0) {
|
|
println_Msg(F("AM29F032B"));
|
|
print_Msg(F("Banks: "));
|
|
print_Msg(romBanks);
|
|
println_Msg(F("/256"));
|
|
display_Update();
|
|
}
|
|
else if (strcmp(flashid, "01AD") == 0) {
|
|
println_Msg(F("AM29F016B"));
|
|
print_Msg(F("Banks: "));
|
|
print_Msg(romBanks);
|
|
println_Msg(F("/128"));
|
|
display_Update();
|
|
}
|
|
else if (strcmp(flashid, "04AD") == 0) {
|
|
println_Msg(F("AM29F016D"));
|
|
print_Msg(F("Banks: "));
|
|
print_Msg(romBanks);
|
|
println_Msg(F("/128"));
|
|
display_Update();
|
|
}
|
|
else if (strcmp(flashid, "01D5") == 0) {
|
|
println_Msg(F("AM29F080B"));
|
|
print_Msg(F("Banks: "));
|
|
print_Msg(romBanks);
|
|
println_Msg(F("/64"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Msg(F("Flash ID: "));
|
|
println_Msg(flashid);
|
|
display_Update();
|
|
print_Error(F("Unknown flashrom"), true);
|
|
}
|
|
dataOut();
|
|
|
|
// Reset flash
|
|
writeByte_GB(0x555, 0xf0);
|
|
|
|
delay(100);
|
|
println_Msg(F("Erasing flash"));
|
|
display_Update();
|
|
|
|
// Erase flash
|
|
writeByte_GB(0x555, 0xaa);
|
|
writeByte_GB(0x2aa, 0x55);
|
|
writeByte_GB(0x555, 0x80);
|
|
writeByte_GB(0x555, 0xaa);
|
|
writeByte_GB(0x2aa, 0x55);
|
|
writeByte_GB(0x555, 0x10);
|
|
|
|
dataIn_GB();
|
|
|
|
// Read the status register
|
|
byte statusReg = readByte_GB(0);
|
|
|
|
// After a completed erase D7 will output 1
|
|
while ((statusReg & 0x80) != 0x80) {
|
|
// Blink led
|
|
PORTB ^= (1 << 4);
|
|
delay(100);
|
|
// Update Status
|
|
statusReg = readByte_GB(0);
|
|
}
|
|
|
|
// Blankcheck
|
|
println_Msg(F("Blankcheck"));
|
|
display_Update();
|
|
|
|
// Read x number of banks
|
|
for (int currBank = 0; currBank < romBanks; currBank++) {
|
|
// Blink led
|
|
PORTB ^= (1 << 4);
|
|
|
|
dataOut();
|
|
|
|
// Set ROM bank
|
|
writeByte_GB(0x2000, currBank);
|
|
dataIn();
|
|
|
|
for (unsigned int currAddr = 0x4000; currAddr < 0x7FFF; currAddr += 512) {
|
|
uint8_t readData[512];
|
|
for (int currByte = 0; currByte < 512; currByte++) {
|
|
readData[currByte] = readByte_GB(currAddr + currByte);
|
|
}
|
|
for (int j = 0; j < 512; j++) {
|
|
if (readData[j] != 0xFF) {
|
|
println_Msg(F("Not empty"));
|
|
print_Error(F("Erase failed"), true);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (MBC == 3) {
|
|
println_Msg(F("Writing flash MBC3"));
|
|
display_Update();
|
|
|
|
// Write flash
|
|
dataOut();
|
|
|
|
uint16_t currAddr = 0;
|
|
uint16_t endAddr = 0x3FFF;
|
|
|
|
for (int currBank = 0; currBank < romBanks; currBank++) {
|
|
// Blink led
|
|
PORTB ^= (1 << 4);
|
|
|
|
// Set ROM bank
|
|
writeByte_GB(0x2100, currBank);
|
|
|
|
if (currBank > 0) {
|
|
currAddr = 0x4000;
|
|
endAddr = 0x7FFF;
|
|
}
|
|
|
|
while (currAddr <= endAddr) {
|
|
myFile.read(sdBuffer, 512);
|
|
|
|
for (int currByte = 0; currByte < 512; currByte++) {
|
|
// Write command sequence
|
|
writeByte_GB(0x555, 0xaa);
|
|
writeByte_GB(0x2aa, 0x55);
|
|
writeByte_GB(0x555, 0xa0);
|
|
// Write current byte
|
|
writeByte_GB(currAddr + currByte, sdBuffer[currByte]);
|
|
|
|
// Set data pins to input
|
|
dataIn();
|
|
|
|
// Setting CS(PH3) and OE/RD(PH6) LOW
|
|
PORTH &= ~((1 << 3) | (1 << 6));
|
|
|
|
// Busy check
|
|
while ((PINC & 0x80) != (sdBuffer[currByte] & 0x80)) {
|
|
}
|
|
|
|
// Switch CS(PH3) and OE/RD(PH6) to HIGH
|
|
PORTH |= (1 << 3) | (1 << 6);
|
|
|
|
// Set data pins to output
|
|
dataOut();
|
|
}
|
|
currAddr += 512;
|
|
}
|
|
}
|
|
}
|
|
|
|
else if (MBC == 5) {
|
|
println_Msg(F("Writing flash MBC5"));
|
|
display_Update();
|
|
|
|
// Write flash
|
|
dataOut();
|
|
|
|
for (int currBank = 0; currBank < romBanks; currBank++) {
|
|
// Blink led
|
|
PORTB ^= (1 << 4);
|
|
|
|
// Set ROM bank
|
|
writeByte_GB(0x2000, currBank);
|
|
// 0x2A8000 fix
|
|
writeByte_GB(0x4000, 0x0);
|
|
|
|
for (unsigned int currAddr = 0x4000; currAddr < 0x7FFF; currAddr += 512) {
|
|
myFile.read(sdBuffer, 512);
|
|
|
|
for (int currByte = 0; currByte < 512; currByte++) {
|
|
// Write command sequence
|
|
writeByte_GB(0x555, 0xaa);
|
|
writeByte_GB(0x2aa, 0x55);
|
|
writeByte_GB(0x555, 0xa0);
|
|
// Write current byte
|
|
writeByte_GB(currAddr + currByte, sdBuffer[currByte]);
|
|
|
|
// Set data pins to input
|
|
dataIn();
|
|
|
|
// Setting CS(PH3) and OE/RD(PH6) LOW
|
|
PORTH &= ~((1 << 3) | (1 << 6));
|
|
|
|
// Busy check
|
|
while ((PINC & 0x80) != (sdBuffer[currByte] & 0x80)) {
|
|
}
|
|
|
|
// Switch CS(PH3) and OE/RD(PH6) to HIGH
|
|
PORTH |= (1 << 3) | (1 << 6);
|
|
|
|
// Set data pins to output
|
|
dataOut();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set data pins to input again
|
|
dataIn_GB();
|
|
|
|
println_Msg(F("Verifying"));
|
|
display_Update();
|
|
|
|
// Go back to file beginning
|
|
myFile.seekSet(0);
|
|
//unsigned int addr = 0; // unused
|
|
writeErrors = 0;
|
|
|
|
// Verify flashrom
|
|
uint16_t romAddress = 0;
|
|
|
|
// Read number of banks and switch banks
|
|
for (uint16_t bank = 1; bank < romBanks; bank++) {
|
|
// Switch data pins to output
|
|
dataOut();
|
|
|
|
if (romType >= 5) { // MBC2 and above
|
|
writeByte_GB(0x2100, bank); // Set ROM bank
|
|
}
|
|
else { // MBC1
|
|
writeByte_GB(0x6000, 0); // Set ROM Mode
|
|
writeByte_GB(0x4000, bank >> 5); // Set bits 5 & 6 (01100000) of ROM bank
|
|
writeByte_GB(0x2000, bank & 0x1F); // Set bits 0 & 4 (00011111) of ROM bank
|
|
}
|
|
|
|
// Switch data pins to intput
|
|
dataIn_GB();
|
|
|
|
if (bank > 1) {
|
|
romAddress = 0x4000;
|
|
}
|
|
// Blink led
|
|
PORTB ^= (1 << 4);
|
|
|
|
// Read up to 7FFF per bank
|
|
while (romAddress <= 0x7FFF) {
|
|
// Fill sdBuffer
|
|
myFile.read(sdBuffer, 512);
|
|
// Compare
|
|
for (int i = 0; i < 512; i++) {
|
|
if (readByte_GB(romAddress + i) != sdBuffer[i]) {
|
|
writeErrors++;
|
|
}
|
|
}
|
|
romAddress += 512;
|
|
}
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
|
|
if (writeErrors == 0) {
|
|
println_Msg(F("OK"));
|
|
display_Update();
|
|
}
|
|
else {
|
|
print_Msg(F("Error: "));
|
|
print_Msg(writeErrors);
|
|
println_Msg(F(" bytes "));
|
|
print_Error(F("did not verify."), false);
|
|
}
|
|
}
|
|
else {
|
|
println_Msg(F("Can't open file"));
|
|
display_Update();
|
|
}
|
|
}
|
|
|
|
//******************************************
|
|
// End of File
|
|
//******************************************
|