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Combines "Flash MBC3" and "Flash MBC5"; adds "Flash cart and write latest save"

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This commit is contained in:
Dakkaron 2021-07-02 09:36:24 +02:00
parent 34e7f90d70
commit f554adccce
1 changed files with 96 additions and 91 deletions
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117
Cart_Reader/GB.ino
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@ -28,8 +28,8 @@ static const char* const menuOptionsGBx[] PROGMEM = {gbxMenuItem1, gbxMenuItem2,
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 GBMenuItem4[] PROGMEM = "Flash Cart";
static const char GBMenuItem5[] PROGMEM = "Flash Cart and Save";
static const char GBMenuItem6[] PROGMEM = "Reset";
static const char* const menuOptionsGB[] PROGMEM = {GBMenuItem1, GBMenuItem2, GBMenuItem3, GBMenuItem4, GBMenuItem5, GBMenuItem6};
@ -145,7 +145,7 @@ void gbMenu() {
sd.chdir("/");
fileBrowser(F("Select file"));
display_Clear();
writeFlash_GB(3);
writeFlash_GB();
// Reset
wait();
resetArduino();
@ -160,7 +160,50 @@ void gbMenu() {
sd.chdir("/");
fileBrowser(F("Select file"));
display_Clear();
writeFlash_GB(5);
writeFlash_GB();
getCartInfo_GB();
// Does cartridge have SRAM
if (sramEndAddress > 0) {
// Remove file name ending
int pos=-1;
while (fileName[++pos]!='\0') {
if (fileName[pos]=='.') {
fileName[pos]='\0';
break;
}
}
sprintf(filePath, "/GB/SAVE/%s/", fileName);
if (sd.exists(filePath)) {
println_Msg(F("Save folder found"));
EEPROM_readAnything(0, foldern);
for (int i=foldern;i>=0;i--) {
sprintf(filePath, "/GB/SAVE/%s/%d/%s.SAV", fileName, i, fileName);
if (sd.exists(filePath)) {
print_Msg(F("Save slot "));
print_Msg(i);
println_Msg(F(" found."));
sprintf(filePath, "/GB/SAVE/%s/%d", fileName, i);
sprintf(fileName, "%s.SAV", fileName);
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);
}
// Reset
wait();
resetArduino();
@ -773,7 +816,7 @@ unsigned long verifySRAM_GB() {
// 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) {
void writeFlash_GB() {
// Create filepath
sprintf(filePath, "%s/%s", filePath, fileName);
@ -851,11 +894,20 @@ void writeFlash_GB(byte MBC) {
display_Update();
}
else {
print_Msg(F("Flash ID: "));
println_Msg(flashid);
println_Msg(F("S29GL032M90TCIR4"));
print_Msg(F("Banks: "));
print_Msg(romBanks);
println_Msg(F("/256"));
display_Update();
}
/*else {
print_Msg(F("Flash ID: "));
println_Msg(flashid);
display_Update();
print_Error(F("Unknown flashrom"), true);
}
}*/
dataOut();
// Reset flash
@ -916,8 +968,7 @@ void writeFlash_GB(byte MBC) {
}
}
if (MBC == 3) {
println_Msg(F("Writing flash MBC3"));
println_Msg(F("Writing flash MBC3/MBC5"));
display_Update();
// Write flash
@ -932,6 +983,8 @@ void writeFlash_GB(byte MBC) {
// Set ROM bank
writeByte_GB(0x2100, currBank);
// 0x2A8000 fix
writeByte_GB(0x4000, 0x0);
if (currBank > 0) {
currAddr = 0x4000;
@ -968,54 +1021,6 @@ void writeFlash_GB(byte MBC) {
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();