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cartreader/Cart_Reader/GBA.ino

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//******************************************
// GAME BOY ADVANCE MODULE
//******************************************
#ifdef enable_GBX
/******************************************
Variables
*****************************************/
char calcChecksumStr[5];
boolean readType;
/******************************************
Menu
*****************************************/
// GBA menu items
static const char GBAMenuItem1[] PROGMEM = "Read ROM";
static const char GBAMenuItem2[] PROGMEM = "Read Save";
static const char GBAMenuItem3[] PROGMEM = "Write Save";
static const char GBAMenuItem4[] PROGMEM = "Force Savetype";
static const char GBAMenuItem5[] PROGMEM = "Flash Repro";
static const char GBAMenuItem6[] PROGMEM = "Reset";
static const char* const menuOptionsGBA[] PROGMEM = { GBAMenuItem1, GBAMenuItem2, GBAMenuItem3, GBAMenuItem4, GBAMenuItem5, GBAMenuItem6 };
// Rom menu
static const char GBARomItem1[] PROGMEM = "1 MB";
static const char GBARomItem2[] PROGMEM = "2 MB";
static const char GBARomItem3[] PROGMEM = "4 MB";
static const char GBARomItem4[] PROGMEM = "8 MB";
static const char GBARomItem5[] PROGMEM = "16 MB";
static const char GBARomItem6[] PROGMEM = "32 MB";
static const char* const romOptionsGBA[] PROGMEM = { GBARomItem1, GBARomItem2, GBARomItem3, GBARomItem4, GBARomItem5, GBARomItem6 };
// Save menu
static const char GBASaveItem1[] PROGMEM = "4K EEPROM";
static const char GBASaveItem2[] PROGMEM = "64K EEPROM";
static const char GBASaveItem3[] PROGMEM = "256K SRAM/FRAM";
static const char GBASaveItem4[] PROGMEM = "512K SRAM/FRAM";
static const char GBASaveItem5[] PROGMEM = "512K FLASH";
static const char GBASaveItem6[] PROGMEM = "1M FLASH";
static const char* const saveOptionsGBA[] PROGMEM = { GBASaveItem1, GBASaveItem2, GBASaveItem3, GBASaveItem4, GBASaveItem5, GBASaveItem6 };
void gbaMenu() {
// create menu with title and 4 options to choose from
unsigned char mainMenu;
// Copy menuOptions out of progmem
convertPgm(menuOptionsGBA, 6);
mainMenu = question_box(F("GBA Cart Reader"), menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (mainMenu) {
case 0:
// Read rom
switch (cartSize) {
case 0:
// create submenu with title and 4 options to choose from
unsigned char GBARomMenu;
// Copy menuOptions out of progmem
convertPgm(romOptionsGBA, 6);
GBARomMenu = question_box(F("Select ROM size"), menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (GBARomMenu) {
case 0:
// 1MB
cartSize = 0x100000;
break;
case 1:
// 2MB
cartSize = 0x200000;
break;
case 2:
// 4MB
cartSize = 0x400000;
break;
case 3:
// 8MB
cartSize = 0x800000;
break;
case 4:
// 16MB
cartSize = 0x1000000;
break;
case 5:
// 32MB
cartSize = 0x2000000;
break;
}
break;
case 1:
// 1MB
cartSize = 0x100000;
break;
case 4:
// 4MB
cartSize = 0x400000;
break;
case 8:
// 8MB
cartSize = 0x800000;
break;
case 16:
// 16MB
cartSize = 0x1000000;
break;
case 32:
// 32MB
cartSize = 0x2000000;
break;
}
display_Clear();
// Change working dir to root
sd.chdir("/");
readROM_GBA();
sd.chdir("/");
// Internal Checksum
compare_checksum_GBA();
// CRC32
compareCRC("gba.txt", 0, 1, 0);
#ifdef global_log
save_log();
#endif
println_Msg(F("Press Button..."));
display_Update();
wait();
break;
case 1:
// Read save
if (saveType == 0) {
// create submenu with title and 6 options to choose from
unsigned char GBASaveMenu;
// Copy menuOptions out of progmem
convertPgm(saveOptionsGBA, 6);
GBASaveMenu = question_box(F("Select save type"), menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (GBASaveMenu) {
case 0:
// 4K EEPROM
saveType = 1;
break;
case 1:
// 64K EEPROM
saveType = 2;
break;
case 2:
// 256K SRAM/FRAM
saveType = 3;
break;
case 3:
// 512K SRAM/FRAM
saveType = 6;
break;
case 4:
// 512K FLASH
saveType = 4;
break;
case 5:
// 1M FLASH
saveType = 5;
break;
}
}
switch (saveType) {
case 1:
display_Clear();
sd.chdir("/");
// 4K EEPROM
readEeprom_GBA(4);
setROM_GBA();
break;
case 2:
display_Clear();
sd.chdir("/");
// 64K EEPROM
readEeprom_GBA(64);
setROM_GBA();
break;
case 3:
display_Clear();
sd.chdir("/");
// 256K SRAM/FRAM
readSRAM_GBA(1, 32768, 0);
setROM_GBA();
break;
case 4:
display_Clear();
sd.chdir("/");
// 512K FLASH
readFLASH_GBA(1, 65536, 0);
setROM_GBA();
break;
case 5:
display_Clear();
sd.chdir("/");
// 1M FLASH (divided into two banks)
switchBank_GBA(0x0);
setROM_GBA();
readFLASH_GBA(1, 65536, 0);
switchBank_GBA(0x1);
setROM_GBA();
readFLASH_GBA(0, 65536, 65536);
setROM_GBA();
break;
case 6:
display_Clear();
sd.chdir("/");
// 512K SRAM/FRAM
readSRAM_GBA(1, 65536, 0);
setROM_GBA();
break;
}
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
break;
case 2:
// Write save
if (saveType == 0) {
// create submenu with title and 6 options to choose from
unsigned char GBASavesMenu;
// Copy menuOptions out of progmem
convertPgm(saveOptionsGBA, 6);
GBASavesMenu = question_box(F("Select save type"), menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (GBASavesMenu) {
case 0:
// 4K EEPROM
saveType = 1;
break;
case 1:
// 64K EEPROM
saveType = 2;
break;
case 2:
// 256K SRAM/FRAM
saveType = 3;
break;
case 3:
// 512K SRAM/FRAM
saveType = 6;
break;
case 4:
// 512K FLASH
saveType = 4;
break;
case 5:
// 1M FLASH
saveType = 5;
break;
}
}
switch (saveType) {
case 1:
display_Clear();
sd.chdir("/");
// 4K EEPROM
writeEeprom_GBA(4);
writeErrors = verifyEEP_GBA(4);
if (writeErrors == 0) {
println_Msg(F("Verified OK"));
display_Update();
} else {
print_Msg(F("Error: "));
print_Msg(writeErrors);
println_Msg(F(" bytes "));
print_Error(F("did not verify."), false);
}
setROM_GBA();
break;
case 2:
display_Clear();
sd.chdir("/");
// 64K EEPROM
writeEeprom_GBA(64);
writeErrors = verifyEEP_GBA(64);
if (writeErrors == 0) {
println_Msg(F("Verified OK"));
display_Update();
} else {
print_Msg(F("Error: "));
print_Msg(writeErrors);
println_Msg(F(" bytes "));
print_Error(F("did not verify."), false);
}
setROM_GBA();
break;
case 3:
display_Clear();
// Change working dir to root
sd.chdir("/");
// 256K SRAM/FRAM
writeSRAM_GBA(1, 32768, 0);
writeErrors = verifySRAM_GBA(32768, 0);
if (writeErrors == 0) {
println_Msg(F("Verified OK"));
display_Update();
} else {
print_Msg(F("Error: "));
print_Msg(writeErrors);
println_Msg(F(" bytes "));
print_Error(F("did not verify."), false);
}
setROM_GBA();
break;
case 4:
display_Clear();
sd.chdir("/");
// 512K FLASH
idFlash_GBA();
resetFLASH_GBA();
print_Msg(F("FLASH ID: "));
println_Msg(flashid);
println_Msg(F(""));
println_Msg(F("FLASH Type: "));
if (strcmp(flashid, "1F3D") == 0) {
println_Msg(F("Atmel AT29LV512"));
} else if (strcmp(flashid, "BFD4") == 0) {
println_Msg(F("SST 39VF512"));
} else if (strcmp(flashid, "C21C") == 0) {
println_Msg(F("Macronix MX29L512"));
} else if (strcmp(flashid, "321B") == 0) {
println_Msg(F("Panasonic MN63F805MNP"));
} else {
println_Msg(F("Unknown"));
//print_Error(F(""), true);
}
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
display_Clear();
display_Update();
if (strcmp(flashid, "1F3D") == 0) { // Atmel
writeFLASH_GBA(1, 65536, 0, 1);
verifyFLASH_GBA(65536, 0);
} else {
eraseFLASH_GBA();
if (blankcheckFLASH_GBA(65536)) {
writeFLASH_GBA(1, 65536, 0, 0);
verifyFLASH_GBA(65536, 0);
} else {
print_Error(F("Erase failed"), false);
}
}
setROM_GBA();
break;
case 5:
display_Clear();
sd.chdir("/");
// 1M FLASH
idFlash_GBA();
resetFLASH_GBA();
print_Msg(F("Flashrom ID: "));
println_Msg(flashid);
println_Msg(F(""));
println_Msg(F("Flashrom Type: "));
if (strcmp(flashid, "C209") == 0) {
println_Msg(F("Macronix MX29L010"));
} else if (strcmp(flashid, "6213") == 0) {
println_Msg(F("SANYO LE26FV10N1TS"));
} else {
println_Msg(F("Unknown"));
//print_Error(F(""), true);
}
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
display_Clear();
display_Update();
eraseFLASH_GBA();
// 131072 bytes are divided into two 65536 byte banks
switchBank_GBA(0x0);
setROM_GBA();
if (blankcheckFLASH_GBA(65536)) {
writeFLASH_GBA(1, 65536, 0, 0);
verifyFLASH_GBA(65536, 0);
} else {
print_Error(F("Erase failed"), false);
}
switchBank_GBA(0x1);
setROM_GBA();
if (blankcheckFLASH_GBA(65536)) {
writeFLASH_GBA(0, 65536, 65536, 0);
verifyFLASH_GBA(65536, 65536);
} else {
print_Error(F("Erase failed"), false);
}
setROM_GBA();
break;
case 6:
display_Clear();
// Change working dir to root
sd.chdir("/");
// 512K SRAM/FRAM
writeSRAM_GBA(1, 65536, 0);
writeErrors = verifySRAM_GBA(65536, 0);
if (writeErrors == 0) {
println_Msg(F("Verified OK"));
display_Update();
} else {
print_Msg(F("Error: "));
print_Msg(writeErrors);
println_Msg(F(" bytes "));
print_Error(F("did not verify."), false);
}
setROM_GBA();
break;
}
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
break;
case 3:
display_Clear();
// create submenu with title and 7 options to choose from
unsigned char GBASaveMenu;
// Copy menuOptions out of progmem
convertPgm(saveOptionsGBA, 6);
GBASaveMenu = question_box(F("Select save type"), menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (GBASaveMenu) {
case 0:
// 4K EEPROM
saveType = 1;
break;
case 1:
// 64K EEPROM
saveType = 2;
break;
case 2:
// 256K SRAM/FRAM
saveType = 3;
break;
case 3:
// 512K SRAM/FRAM
saveType = 6;
break;
case 4:
// 512K FLASH
saveType = 4;
break;
case 5:
// 1M FLASH
saveType = 5;
break;
}
display_Clear();
break;
case 4:
display_Clear();
flashRepro_GBA();
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
resetArduino();
break;
case 5:
resetArduino();
break;
}
}
/******************************************
Setup
*****************************************/
void setup_GBA() {
setROM_GBA();
// Get cart info
getCartInfo_GBA();
display_Clear();
// Print start page
print_Msg(F("Title: "));
println_Msg(romName);
print_Msg(F("Serial: "));
println_Msg(cartID);
print_Msg(F("Revision: "));
println_Msg(romVersion);
print_Msg(F("ROM Size: "));
if (cartSize == 0)
println_Msg(F("Unknown"));
else {
print_Msg(cartSize);
println_Msg(F(" MB"));
}
print_Msg(F("Save Type: "));
switch (saveType) {
case 0:
println_Msg(F("None/Unknown"));
break;
case 1:
println_Msg(F("4K EEPROM"));
break;
case 2:
println_Msg(F("64K EEPROM"));
break;
case 3:
println_Msg(F("256K SRAM"));
break;
case 4:
println_Msg(F("512K FLASH"));
break;
case 5:
println_Msg(F("1M FLASH"));
break;
}
print_Msg(F("Header Checksum: "));
println_Msg(checksumStr);
// Wait for user input
println_Msg("");
println_Msg(F("Press Button..."));
display_Update();
wait();
}
/******************************************
Low level functions
*****************************************/
void setROM_GBA() {
// CS_SRAM(PH0)
DDRH |= (1 << 0);
PORTH |= (1 << 0);
// CS_ROM(PH3)
DDRH |= (1 << 3);
PORTH |= (1 << 3);
// WR(PH5)
DDRH |= (1 << 5);
PORTH |= (1 << 5);
// RD(PH6)
DDRH |= (1 << 6);
PORTH |= (1 << 6);
// AD0-AD7
DDRF = 0xFF;
// AD8-AD15
DDRK = 0xFF;
// AD16-AD23
DDRC = 0xFF;
// Wait
delay(500);
}
word readWord_GBA(unsigned long myAddress) {
// Set address/data ports to output
DDRF = 0xFF;
DDRK = 0xFF;
DDRC = 0xFF;
// Divide address by two to get word addressing
myAddress = myAddress >> 1;
// Output address to address pins,
PORTF = myAddress;
PORTK = myAddress >> 8;
PORTC = myAddress >> 16;
// Pull CS(PH3) to LOW
PORTH &= ~(1 << 3);
// Set address/data ports to input
PORTF = 0x0;
PORTK = 0x0;
DDRF = 0x0;
DDRK = 0x0;
// Pull RD(PH6) to LOW
PORTH &= ~(1 << 6);
// Delay here or read error with repro
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
word myWord = (PINK << 8) | PINF;
// Switch RD(PH6) to HIGH
PORTH |= (1 << 6);
// Switch CS_ROM(PH3) to HIGH
PORTH |= (1 << 3);
return myWord;
}
void writeWord_GBA(unsigned long myAddress, word myWord) {
// Set address/data ports to output
DDRF = 0xFF;
DDRK = 0xFF;
DDRC = 0xFF;
// Divide address by two to get word addressing
myAddress = myAddress >> 1;
// Output address to address pins,
PORTF = myAddress;
PORTK = myAddress >> 8;
PORTC = myAddress >> 16;
// Pull CS(PH3) to LOW
PORTH &= ~(1 << 3);
__asm__("nop\n\t"
"nop\n\t");
// Output data
PORTF = myWord & 0xFF;
PORTK = myWord >> 8;
// Pull WR(PH5) to LOW
PORTH &= ~(1 << 5);
__asm__("nop\n\t"
"nop\n\t");
// Switch WR(PH5) to HIGH
PORTH |= (1 << 5);
// Switch CS_ROM(PH3) to HIGH
PORTH |= (1 << 3);
}
// This function swaps bit at positions p1 and p2 in an integer n
word swapBits(word n, word p1, word p2) {
// Move p1'th to rightmost side
word bit1 = (n >> p1) & 1;
// Move p2'th to rightmost side
word bit2 = (n >> p2) & 1;
// XOR the two bits */
word x = (bit1 ^ bit2);
// Put the xor bit back to their original positions
x = (x << p1) | (x << p2);
// XOR 'x' with the original number so that the two sets are swapped
word result = n ^ x;
return result;
}
// Some repros have D0 and D1 switched
word readWord_GAB(unsigned long myAddress) {
word tempWord = swapBits(readWord_GBA(myAddress), 0, 1);
return tempWord;
}
void writeWord_GAB(unsigned long myAddress, word myWord) {
writeWord_GBA(myAddress, swapBits(myWord, 0, 1));
}
byte readByte_GBA(unsigned long myAddress) {
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data port to input
DDRC = 0x0;
// Output address to address pins,
PORTF = myAddress;
PORTK = myAddress >> 8;
// Pull OE_SRAM(PH6) to LOW
PORTH &= ~(1 << 6);
// Pull CE_SRAM(PH0) to LOW
PORTH &= ~(1 << 0);
// Hold address for at least 25ns and wait 150ns before access
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Read byte
byte tempByte = PINC;
// Pull CE_SRAM(PH0) HIGH
PORTH |= (1 << 0);
// Pull OE_SRAM(PH6) HIGH
PORTH |= (1 << 6);
return tempByte;
}
void writeByte_GBA(unsigned long myAddress, byte myData) {
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data port to output
DDRC = 0xFF;
// Output address to address pins
PORTF = myAddress;
PORTK = myAddress >> 8;
// Output data to data pins
PORTC = myData;
// Wait till output is stable
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Pull WE_SRAM(PH5) to LOW
PORTH &= ~(1 << 5);
// Pull CE_SRAM(PH0) to LOW
PORTH &= ~(1 << 0);
// Leave WR low for at least 60ns
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Pull CE_SRAM(PH0) HIGH
PORTH |= (1 << 0);
// Pull WE_SRAM(PH5) HIGH
PORTH |= (1 << 5);
// Leave WR high for at least 50ns
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
}
/******************************************
GBA ROM Functions
*****************************************/
// Read info out of rom header
void getCartInfo_GBA() {
char saveTypeStr[14];
// Read Header into array
for (int currWord = 0; currWord < 192; currWord += 2) {
word tempWord = readWord_GBA(currWord);
sdBuffer[currWord] = tempWord & 0xFF;
sdBuffer[currWord + 1] = (tempWord >> 8) & 0xFF;
}
// Compare Nintendo logo against known checksum, 156 bytes starting at 0x04
word logoChecksum = 0;
for (int currByte = 0x4; currByte < 0xA0; currByte++) {
logoChecksum += sdBuffer[currByte];
}
if (logoChecksum != 0x4B1B) {
display_Clear();
print_Error(F("CARTRIDGE ERROR"), false);
strcpy(romName, "ERROR");
println_Msg(F(""));
println_Msg(F(""));
println_Msg(F(""));
println_Msg(F("Press Button to"));
println_Msg(F("ignore or powercycle"));
println_Msg(F("to try again"));
display_Update();
wait();
} else {
char tempStr2[2];
char tempStr[5];
// cart not in list
cartSize = 0;
saveType = 0;
// Get cart ID
cartID[0] = char(sdBuffer[0xAC]);
cartID[1] = char(sdBuffer[0xAD]);
cartID[2] = char(sdBuffer[0xAE]);
cartID[3] = char(sdBuffer[0xAF]);
display_Clear();
println_Msg(F("Searching database..."));
display_Update();
//go to root
sd.chdir();
if (myFile.open("gba.txt", O_READ)) {
char gamename[100];
#ifdef global_log
// Disable log to prevent unnecessary logging
dont_log = true;
#endif
// Loop through file
while (myFile.available()) {
// Skip first line with name
skip_line(&myFile);
// Skip over the CRC checksum
myFile.seekSet(myFile.curPosition() + 9);
// Read 4 bytes into String, do it one at a time so byte order doesn't get mixed up
sprintf(tempStr, "%c", myFile.read());
for (byte i = 0; i < 3; i++) {
sprintf(tempStr2, "%c", myFile.read());
strcat(tempStr, tempStr2);
}
// Check if string is a match
if (strcmp(tempStr, cartID) == 0) {
// Rewind to start of entry
for (byte count_newline = 0; count_newline < 2; count_newline++) {
while (1) {
if (myFile.curPosition() == 0) {
break;
} else if (myFile.peek() == '\n') {
myFile.seekSet(myFile.curPosition() - 1);
break;
} else {
myFile.seekSet(myFile.curPosition() - 1);
}
}
}
if (myFile.curPosition() != 0)
myFile.seekSet(myFile.curPosition() + 2);
// Display database
while (myFile.available()) {
display_Clear();
// Read game name
get_line(gamename, &myFile, 96);
// Skip over the CRC checksum
myFile.seekSet(myFile.curPosition() + 9);
// Read 4 bytes into String, do it one at a time so byte order doesn't get mixed up
sprintf(tempStr, "%c", myFile.read());
for (byte i = 0; i < 3; i++) {
sprintf(tempStr2, "%c", myFile.read());
strcat(tempStr, tempStr2);
}
// Skip the , in the file
myFile.seekSet(myFile.curPosition() + 1);
// Read the next ascii character and subtract 48 to convert to decimal
cartSize = myFile.read() - 48;
// Remove leading 0 for single digit cart sizes
if (cartSize != 0) {
cartSize = cartSize * 10 + myFile.read() - 48;
} else {
cartSize = myFile.read() - 48;
}
// Skip the , in the file
myFile.seekSet(myFile.curPosition() + 1);
// Read save type into string
get_line(saveTypeStr, &myFile, 14);
// skip third empty line
skip_line(&myFile);
// Print current database entry
println_Msg(gamename);
print_Msg(F("Serial: "));
println_Msg(tempStr);
print_Msg(F("ROM Size: "));
print_Msg(cartSize);
println_Msg(F(" MB"));
print_Msg(F("Save Lib: "));
println_Msg(saveTypeStr);
#if defined(enable_OLED)
println_Msg(F("Press left to Change"));
println_Msg(F("and right to Select"));
#elif defined(enable_LCD)
println_Msg(F(""));
println_Msg(F("Rotate to Change"));
println_Msg(F("Press to Select"));
#elif defined(SERIAL_MONITOR)
println_Msg(F(""));
println_Msg(F("U/D to Change"));
println_Msg(F("Space to Select"));
#endif
display_Update();
int b = 0;
while (1) {
// Check button input
b = checkButton();
// Next
if (b == 1) {
// Break out of loop to read next entry
break;
}
// Previous
else if (b == 2) {
for (byte count_newline = 0; count_newline < 7; count_newline++) {
while (1) {
if (myFile.curPosition() == 0) {
break;
} else if (myFile.peek() == '\n') {
myFile.seekSet(myFile.curPosition() - 1);
break;
} else {
myFile.seekSet(myFile.curPosition() - 1);
}
}
}
if (myFile.curPosition() != 0)
myFile.seekSet(myFile.curPosition() + 2);
break;
}
// Selection made
else if (b == 3) {
// Close file and break to exit both loops
myFile.close();
break;
}
}
}
}
// If no match advance and try again
else {
// skip rest of line
skip_line(&myFile);
// skip third empty line
skip_line(&myFile);
}
}
// Close the file:
myFile.close();
#ifdef global_log
// Enable log again
dont_log = false;
#endif
} else {
print_Error(F("GBA.txt missing"), true);
}
// Get name
byte myByte = 0;
byte myLength = 0;
for (int addr = 0xA0; addr <= 0xAB; addr++) {
myByte = sdBuffer[addr];
if (isprint(myByte) && myByte != '<' && myByte != '>' && myByte != ':' && myByte != '"' && myByte != '/' && myByte != '\\' && myByte != '|' && myByte != '?' && myByte != '*') {
romName[myLength] = char(myByte);
} else {
if (romName[myLength - 1] == 0x5F) myLength--;
romName[myLength] = 0x5F;
}
myLength++;
}
// Strip trailing white space
for (unsigned int i = myLength - 1; i > 0; i--) {
if ((romName[i] != 0x5F) && (romName[i] != 0x20)) break;
romName[i] = 0x00;
myLength--;
}
// Get ROM version
romVersion = sdBuffer[0xBC];
// Get Checksum as string
sprintf(checksumStr, "%02X", sdBuffer[0xBD]);
// Calculate Checksum
int calcChecksum = 0x00;
for (int n = 0xA0; n < 0xBD; n++) {
calcChecksum -= sdBuffer[n];
}
calcChecksum = (calcChecksum - 0x19) & 0xFF;
// Turn into string
sprintf(calcChecksumStr, "%02X", calcChecksum);
// Compare checksum
if (strcmp(calcChecksumStr, checksumStr) != 0) {
display_Clear();
print_Msg(F("Result: "));
println_Msg(calcChecksumStr);
print_Error(F("Checksum Error"), false);
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
}
/* Convert saveTypeStr to saveType
Save types in ROM
EEPROM_Vnnn EEPROM 512 bytes or 8 Kbytes (4Kbit or 64Kbit)
SRAM_Vnnn SRAM 32 Kbytes (256Kbit)
SRAM_F_Vnnn FRAM 32 Kbytes (256Kbit)
FLASH_Vnnn FLASH 64 Kbytes (512Kbit) (ID used in older files)
FLASH512_Vnnn FLASH 64 Kbytes (512Kbit) (ID used in newer files)
FLASH1M_Vnnn FLASH 128 Kbytes (1Mbit)
Save types in Cart Reader Code
0 = Unknown or no save
1 = 4K EEPROM
2 = 64K EEPROM
3 = 256K SRAM
4 = 512K FLASH
5 = 1M FLASH
6 = 512K SRAM
*/
if (saveTypeStr[0] == 'N') {
saveType = 0;
} else if (saveTypeStr[0] == 'E') {
// Test if 4kbit or 64kbit EEPROM
// Disable interrupts for more uniform clock pulses
noInterrupts();
// Fill sd Buffer
readBlock_EEP(0, 64);
interrupts();
delay(1000);
// Enable ROM again
setROM_GBA();
saveType = 1;
// Reading 4kbit EEPROM as 64kbit just gives the same 8 bytes repeated
for (int currByte = 0; currByte < 512 - 8; currByte++) {
if (sdBuffer[currByte] != sdBuffer[currByte + 8]) {
saveType = 2;
break;
}
}
} else if (saveTypeStr[0] == 'S') {
saveType = 3;
} else if ((saveTypeStr[0] == 'F') && (saveTypeStr[5] == '1')) {
saveType = 5;
} else if (saveTypeStr[0] == 'F') {
saveType = 4;
}
}
}
// Dump ROM
void readROM_GBA() {
// Get name, add extension and convert to char array for sd lib
strcpy(fileName, romName);
strcat(fileName, ".gba");
// create a new folder for the rom file
EEPROM_readAnything(0, foldern);
sprintf(folder, "GBA/ROM/%s/%d", romName, foldern);
sd.mkdir(folder, true);
sd.chdir(folder);
//clear the screen
display_Clear();
print_Msg(F("Saving to "));
print_Msg(folder);
println_Msg(F("/..."));
display_Update();
// write new folder number back to eeprom
foldern = foldern + 1;
EEPROM_writeAnything(0, foldern);
//open file on sd card
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
print_Error(F("Can't create file on SD"), true);
}
//Initialize progress bar
uint32_t processedProgressBar = 0;
uint32_t totalProgressBar = (uint32_t)(cartSize);
draw_progressbar(0, totalProgressBar);
// Read rom
for (unsigned long myAddress = 0; myAddress < cartSize; myAddress += 512) {
// Blink led
if (myAddress % 16384 == 0)
blinkLED();
for (int currWord = 0; currWord < 512; currWord += 2) {
word tempWord = readWord_GBA(myAddress + currWord);
sdBuffer[currWord] = tempWord & 0xFF;
sdBuffer[currWord + 1] = (tempWord >> 8) & 0xFF;
}
// Write to SD
myFile.write(sdBuffer, 512);
processedProgressBar += 512;
draw_progressbar(processedProgressBar, totalProgressBar);
}
// Close the file:
myFile.close();
}
// Calculate the checksum of the dumped rom
boolean compare_checksum_GBA() {
print_Msg(F("Checksum: "));
display_Update();
strcpy(fileName, romName);
strcat(fileName, ".gba");
// last used rom folder
EEPROM_readAnything(0, foldern);
sprintf(folder, "GBA/ROM/%s/%d", romName, foldern - 1);
sd.chdir(folder);
// If file exists
if (myFile.open(fileName, O_READ)) {
// Read rom header
myFile.read(sdBuffer, 512);
myFile.close();
// Calculate Checksum
int calcChecksum = 0x00;
for (int n = 0xA0; n < 0xBD; n++) {
calcChecksum -= sdBuffer[n];
}
calcChecksum = (calcChecksum - 0x19) & 0xFF;
// Turn into string
sprintf(calcChecksumStr, "%02X", calcChecksum);
print_Msg(calcChecksumStr);
if (strcmp(calcChecksumStr, checksumStr) == 0) {
println_Msg(F(" -> OK"));
display_Update();
return 1;
} else {
print_Msg(F(" != "));
println_Msg(checksumStr);
print_Error(F("Invalid Checksum"), false);
return 0;
}
}
// Else show error
else {
print_Error(F("Failed to open rom"), false);
return 0;
}
}
/******************************************
GBA SRAM SAVE Functions
*****************************************/
void readSRAM_GBA(boolean browseFile, unsigned long sramSize, uint32_t pos) {
if (browseFile) {
// Get name, add extension and convert to char array for sd lib
strcpy(fileName, romName);
strcat(fileName, ".srm");
// create a new folder for the save file
EEPROM_readAnything(0, foldern);
sprintf(folder, "GBA/SAVE/%s/%d", romName, foldern);
sd.mkdir(folder, true);
sd.chdir(folder);
// Save location
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("SD Error"), true);
}
// Seek to a new position in the file
if (pos != 0)
myFile.seekCur(pos);
for (unsigned long currAddress = 0; currAddress < sramSize; currAddress += 512) {
for (int c = 0; c < 512; c++) {
// Read byte
sdBuffer[c] = readByte_GBA(currAddress + c);
}
// Write sdBuffer to file
myFile.write(sdBuffer, 512);
}
// Close the file:
myFile.close();
// Signal end of process
println_Msg(F("Done"));
display_Update();
}
void writeSRAM_GBA(boolean browseFile, unsigned long sramSize, uint32_t pos) {
if (browseFile) {
filePath[0] = '\0';
sd.chdir("/");
fileBrowser(F("Select srm file"));
// Create filepath
sprintf(filePath, "%s/%s", filePath, fileName);
display_Clear();
}
//open file on sd card
if (myFile.open(filePath, O_READ)) {
// Seek to a new position in the file
if (pos != 0)
myFile.seekCur(pos);
for (unsigned long currAddress = 0; currAddress < sramSize; currAddress += 512) {
//fill sdBuffer
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
// Write byte
writeByte_GBA(currAddress + c, sdBuffer[c]);
}
}
// Close the file:
myFile.close();
println_Msg(F("SRAM writing finished"));
display_Update();
} else {
print_Error(F("File doesnt exist"), false);
}
}
unsigned long verifySRAM_GBA(unsigned long sramSize, uint32_t pos) {
//open file on sd card
if (myFile.open(filePath, O_READ)) {
// Variable for errors
writeErrors = 0;
// Seek to a new position in the file
if (pos != 0)
myFile.seekCur(pos);
for (unsigned long currAddress = 0; currAddress < sramSize; currAddress += 512) {
//fill sdBuffer
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
// Read byte
if (readByte_GBA(currAddress + c) != sdBuffer[c]) {
writeErrors++;
}
}
}
// Close the file:
myFile.close();
return writeErrors;
} else {
print_Error(F("Can't open file"), false);
}
}
/******************************************
GBA FRAM SAVE Functions
*****************************************/
// MB85R256 FRAM (Ferroelectric Random Access Memory) 32,768 words x 8 bits
void readFRAM_GBA(unsigned long framSize) {
// Output a HIGH signal on CS_ROM(PH3) WE_SRAM(PH5)
PORTH |= (1 << 3) | (1 << 5);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data pins to input
DDRC = 0x00;
// Output a LOW signal on CE_SRAM(PH0) and OE_SRAM(PH6)
PORTH &= ~((1 << 0) | (1 << 6));
// Get name, add extension and convert to char array for sd lib
strcpy(fileName, romName);
strcat(fileName, ".srm");
// create a new folder for the save file
EEPROM_readAnything(0, foldern);
sprintf(folder, "GBA/SAVE/%s/%d", romName, foldern);
sd.mkdir(folder, true);
sd.chdir(folder);
// Save location
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("SD Error"), true);
}
for (unsigned long currAddress = 0; currAddress < framSize; currAddress += 512) {
for (int c = 0; c < 512; c++) {
// Pull OE_SRAM(PH6) HIGH
PORTH |= (1 << 6);
// Set address
PORTF = (currAddress + c) & 0xFF;
PORTK = ((currAddress + c) >> 8) & 0xFF;
// Arduino running at 16Mhz -> one nop = 62.5ns
// Leave CS_SRAM HIGH for at least 85ns
__asm__("nop\n\t"
"nop\n\t");
// Pull OE_SRAM(PH6) LOW
PORTH &= ~(1 << 6);
// Hold address for at least 25ns and wait 150ns before access
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t");
// Read byte
sdBuffer[c] = PINC;
}
// Write sdBuffer to file
myFile.write(sdBuffer, 512);
}
// Close the file:
myFile.close();
// Signal end of process
println_Msg(F("Done"));
display_Update();
}
// Write file to SRAM
void writeFRAM_GBA(boolean browseFile, unsigned long framSize) {
// Output a HIGH signal on CS_ROM(PH3) and OE_SRAM(PH6)
PORTH |= (1 << 3) | (1 << 6);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data port to output
DDRC = 0xFF;
// Output a LOW signal on CE_SRAM(PH0) and WE_SRAM(PH5)
PORTH &= ~((1 << 0) | (1 << 5));
if (browseFile) {
filePath[0] = '\0';
sd.chdir("/");
fileBrowser(F("Select srm file"));
// Create filepath
sprintf(filePath, "%s/%s", filePath, fileName);
display_Clear();
} else
sprintf(filePath, "%s", fileName);
//open file on sd card
if (myFile.open(filePath, O_READ)) {
for (unsigned long currAddress = 0; currAddress < framSize; currAddress += 512) {
//fill sdBuffer
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
// Output Data on PORTC
PORTC = sdBuffer[c];
// Arduino running at 16Mhz -> one nop = 62.5ns
// Data setup time 50ns
__asm__("nop\n\t");
// Pull WE_SRAM (PH5) HIGH
PORTH |= (1 << 5);
// Set address
PORTF = (currAddress + c) & 0xFF;
PORTK = ((currAddress + c) >> 8) & 0xFF;
// Leave WE_SRAM (PH5) HIGH for at least 85ns
__asm__("nop\n\t"
"nop\n\t");
// Pull WE_SRAM (PH5) LOW
PORTH &= ~(1 << 5);
// Hold address for at least 25ns and wait 150ns before next write
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t");
}
}
// Close the file:
myFile.close();
println_Msg(F("SRAM writing finished"));
display_Update();
} else {
print_Error(F("File doesnt exist"), false);
}
}
// Check if the SRAM was written without any error
unsigned long verifyFRAM_GBA(unsigned long framSize) {
// Output a HIGH signal on CS_ROM(PH3) WE_SRAM(PH5)
PORTH |= (1 << 3) | (1 << 5);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data pins to input
DDRC = 0x00;
// Output a LOW signal on CE_SRAM(PH0) and OE_SRAM(PH6)
PORTH &= ~((1 << 0) | (1 << 6));
//open file on sd card
if (myFile.open(filePath, O_READ)) {
// Variable for errors
writeErrors = 0;
for (unsigned long currAddress = 0; currAddress < framSize; currAddress += 512) {
//fill sdBuffer
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
// Pull OE_SRAM(PH6) HIGH
PORTH |= (1 << 6);
// Set address
PORTF = (currAddress + c) & 0xFF;
PORTK = ((currAddress + c) >> 8) & 0xFF;
// Arduino running at 16Mhz -> one nop = 62.5ns
// Leave CS_SRAM HIGH for at least 85ns
__asm__("nop\n\t"
"nop\n\t");
// Pull OE_SRAM(PH6) LOW
PORTH &= ~(1 << 6);
// Hold address for at least 25ns and wait 150ns before access
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t");
// Read byte
if (PINC != sdBuffer[c]) {
writeErrors++;
}
}
}
// Close the file:
myFile.close();
return writeErrors;
} else {
print_Error(F("Can't open file"), false);
}
}
/******************************************
GBA FLASH SAVE Functions
*****************************************/
// SST 39VF512 Flashrom
void idFlash_GBA() {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5) and OE_FLASH(PH6)
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data pins to output
DDRC = 0xFF;
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
// ID command sequence
writeByteFlash_GBA(0x5555, 0xaa);
writeByteFlash_GBA(0x2aaa, 0x55);
writeByteFlash_GBA(0x5555, 0x90);
// Set data pins to input
DDRC = 0x00;
// Output a LOW signal on OE_FLASH(PH6)
PORTH &= ~(1 << 6);
// Wait 150ns before reading ID
// Arduino running at 16Mhz -> one nop = 62.5ns
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t");
// Read the two id bytes into a string
sprintf(flashid, "%02X%02X", readByteFlash_GBA(0), readByteFlash_GBA(1));
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
}
// Reset FLASH
void resetFLASH_GBA() {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5) and OE_FLASH(PH6)
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data pins to output
DDRC = 0xFF;
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
// Reset command sequence
writeByteFlash_GBA(0x5555, 0xAA);
writeByteFlash_GBA(0x2AAA, 0x55);
writeByteFlash_GBA(0x5555, 0xf0);
writeByteFlash_GBA(0x5555, 0xf0);
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
// Wait
delay(100);
}
byte readByteFlash_GBA(unsigned long myAddress) {
// Set address
PORTF = myAddress & 0xFF;
PORTK = (myAddress >> 8) & 0xFF;
// Wait until byte is ready to read
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Read byte
byte tempByte = PINC;
// Arduino running at 16Mhz -> one nop = 62.5ns
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
return tempByte;
}
void writeByteFlash_GBA(unsigned long myAddress, byte 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");
// Switch WE_FLASH(PH5) to LOW
PORTH &= ~(1 << 5);
// Leave WE low for at least 40ns
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Switch WE_FLASH(PH5) to HIGH
PORTH |= (1 << 5);
// Leave WE high for a bit
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
}
// Erase FLASH
void eraseFLASH_GBA() {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5) and OE_FLASH(PH6)
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data pins to output
DDRC = 0xFF;
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
// Erase command sequence
writeByteFlash_GBA(0x5555, 0xaa);
writeByteFlash_GBA(0x2aaa, 0x55);
writeByteFlash_GBA(0x5555, 0x80);
writeByteFlash_GBA(0x5555, 0xaa);
writeByteFlash_GBA(0x2aaa, 0x55);
writeByteFlash_GBA(0x5555, 0x10);
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
// Wait until all is erased
delay(500);
}
boolean blankcheckFLASH_GBA(unsigned long flashSize) {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5)
PORTH |= (1 << 3) | (1 << 5);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set address to 0
PORTF = 0x00;
PORTK = 0x00;
// Set data pins to input
DDRC = 0x00;
// Disable Pullups
//PORTC = 0x00;
boolean blank = 1;
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
// Output a LOW signal on OE_FLASH(PH6)
PORTH &= ~(1 << 6);
for (unsigned long currAddress = 0; currAddress < flashSize; currAddress += 512) {
// Fill buffer
for (int c = 0; c < 512; c++) {
// Read byte
sdBuffer[c] = readByteFlash_GBA(currAddress + c);
}
// Check buffer
for (unsigned long currByte = 0; currByte < 512; currByte++) {
if (sdBuffer[currByte] != 0xFF) {
currByte = 512;
currAddress = flashSize;
blank = 0;
}
}
}
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
return blank;
}
// The MX29L010 is 131072 bytes in size and has 16 sectors per bank
// each sector is 4096 bytes, there are 32 sectors total
// therefore the bank size is 65536 bytes, so we have two banks in total
void switchBank_GBA(byte bankNum) {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5) and OE_FLASH(PH6)
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data pins to output
DDRC = 0xFF;
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
// Switch bank command sequence
writeByte_GBA(0x5555, 0xAA);
writeByte_GBA(0x2AAA, 0x55);
writeByte_GBA(0x5555, 0xB0);
writeByte_GBA(0x0000, bankNum);
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
}
void readFLASH_GBA(boolean browseFile, unsigned long flashSize, uint32_t pos) {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5)
PORTH |= (1 << 3) | (1 << 5);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set address to 0
PORTF = 0x00;
PORTK = 0x00;
// Set data pins to input
DDRC = 0x00;
if (browseFile) {
// Get name, add extension and convert to char array for sd lib
strcpy(fileName, romName);
strcat(fileName, ".fla");
// create a new folder for the save file
EEPROM_readAnything(0, foldern);
sprintf(folder, "GBA/SAVE/%s/%d", romName, foldern);
sd.mkdir(folder, true);
sd.chdir(folder);
// Save location
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("SD Error"), true);
}
// Seek to a new position in the file
if (pos != 0)
myFile.seekCur(pos);
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
// Output a LOW signal on OE_FLASH(PH6)
PORTH &= ~(1 << 6);
for (unsigned long currAddress = 0; currAddress < flashSize; currAddress += 512) {
for (int c = 0; c < 512; c++) {
// Read byte
sdBuffer[c] = readByteFlash_GBA(currAddress + c);
}
// Write sdBuffer to file
myFile.write(sdBuffer, 512);
}
myFile.close();
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
// Signal end of process
println_Msg(F("Done"));
display_Update();
}
void busyCheck_GBA(int currByte) {
// Set data pins to input
DDRC = 0x00;
// Output a LOW signal on OE_FLASH(PH6)
PORTH &= ~(1 << 6);
// Read PINC
while (PINC != sdBuffer[currByte]) {}
// Output a HIGH signal on OE_FLASH(PH6)
PORTH |= (1 << 6);
// Set data pins to output
DDRC = 0xFF;
}
void writeFLASH_GBA(boolean browseFile, unsigned long flashSize, uint32_t pos, boolean isAtmel) {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5) and OE_FLASH(PH6)
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data port to output
DDRC = 0xFF;
if (browseFile) {
filePath[0] = '\0';
sd.chdir("/");
fileBrowser(F("Select fla file"));
// Create filepath
sprintf(filePath, "%s/%s", filePath, fileName);
display_Clear();
}
print_Msg(F("Writing flash..."));
display_Update();
//open file on sd card
if (myFile.open(filePath, O_READ)) {
// Seek to a new position in the file
if (pos != 0)
myFile.seekCur(pos);
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
if (!isAtmel) {
for (unsigned long currAddress = 0; currAddress < flashSize; currAddress += 512) {
//fill sdBuffer
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
// Write command sequence
writeByteFlash_GBA(0x5555, 0xaa);
writeByteFlash_GBA(0x2aaa, 0x55);
writeByteFlash_GBA(0x5555, 0xa0);
// Write current byte
writeByteFlash_GBA(currAddress + c, sdBuffer[c]);
// Wait
busyCheck_GBA(c);
}
}
} else {
for (unsigned long currAddress = 0; currAddress < flashSize; currAddress += 128) {
//fill sdBuffer
myFile.read(sdBuffer, 128);
// Write command sequence
writeByteFlash_GBA(0x5555, 0xaa);
writeByteFlash_GBA(0x2aaa, 0x55);
writeByteFlash_GBA(0x5555, 0xa0);
for (int c = 0; c < 128; c++) {
writeByteFlash_GBA(currAddress + c, sdBuffer[c]);
}
delay(15);
}
}
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
// Close the file:
myFile.close();
println_Msg(F("done"));
display_Update();
} else {
println_Msg(F("Error"));
print_Error(F("File doesnt exist"), false);
}
}
// Check if the Flashrom was written without any error
void verifyFLASH_GBA(unsigned long flashSize, uint32_t pos) {
// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5)
PORTH |= (1 << 3) | (1 << 5);
// Set address ports to output
DDRF = 0xFF;
DDRK = 0xFF;
// Set data pins to input
DDRC = 0x00;
// Output a LOW signal on CE_FLASH(PH0) and OE_FLASH(PH6)
PORTH &= ~((1 << 0) | (1 << 6));
// Signal beginning of process
print_Msg(F("Verify..."));
display_Update();
unsigned long wrError = 0;
//open file on sd card
if (!myFile.open(filePath, O_READ)) {
print_Error(F("SD Error"), true);
}
// Seek to a new position in the file
if (pos != 0)
myFile.seekCur(pos);
for (unsigned long currAddress = 0; currAddress < flashSize; currAddress += 512) {
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
// Read byte
if (sdBuffer[c] != readByteFlash_GBA(currAddress + c)) {
wrError++;
}
}
}
myFile.close();
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
if (wrError == 0) {
println_Msg(F("OK"));
} else {
print_Msg(wrError);
print_Error(F(" Errors"), false);
}
}
/******************************************
GBA Eeprom SAVE Functions
*****************************************/
// Write eeprom from file
void writeEeprom_GBA(word eepSize) {
// Launch Filebrowser
filePath[0] = '\0';
sd.chdir("/");
fileBrowser(F("Select eep file"));
// Create filepath
sprintf(filePath, "%s/%s", filePath, fileName);
display_Clear();
print_Msg(F("Writing EEPROM..."));
display_Update();
//open file on sd card
if (myFile.open(filePath, O_READ)) {
for (word i = 0; i < eepSize * 16; i += 64) {
// Fill romBuffer
myFile.read(sdBuffer, 512);
// Disable interrupts for more uniform clock pulses
noInterrupts();
// Write 512 bytes
writeBlock_EEP(i, eepSize);
interrupts();
// Wait
delayMicroseconds(200);
}
// Close the file:
myFile.close();
println_Msg(F("done"));
display_Update();
} else {
println_Msg(F("Error"));
print_Error(F("File doesnt exist"), false);
}
}
// Read eeprom to file
void readEeprom_GBA(word eepSize) {
// Get name, add extension and convert to char array for sd lib
strcpy(fileName, romName);
strcat(fileName, ".eep");
// create a new folder for the save file
EEPROM_readAnything(0, foldern);
sprintf(folder, "GBA/SAVE/%s/%d", romName, foldern);
sd.mkdir(folder, true);
sd.chdir(folder);
// Save location
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("SD Error"), true);
}
// Each block contains 8 Bytes, so for a 8KB eeprom 1024 blocks need to be read
for (word currAddress = 0; currAddress < eepSize * 16; currAddress += 64) {
// Disable interrupts for more uniform clock pulses
noInterrupts();
// Fill sd Buffer
readBlock_EEP(currAddress, eepSize);
interrupts();
// Write sdBuffer to file
myFile.write(sdBuffer, 512);
// Wait
delayMicroseconds(200);
}
myFile.close();
}
// Send address as bits to eeprom
void send_GBA(word currAddr, word numBits) {
for (word addrBit = numBits; addrBit > 0; addrBit--) {
// If you want the k-th bit of n, then do
// (n & ( 1 << k )) >> k
if (((currAddr & (1 << (addrBit - 1))) >> (addrBit - 1))) {
// Set A0(PF0) to High
PORTF |= (1 << 0);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// Set WR(PH5) to High
PORTH |= (1 << 5);
} else {
// Set A0(PF0) to Low
PORTF &= ~(1 << 0);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// Set WR(PH5) to High
PORTH |= (1 << 5);
}
}
}
// Write 512K eeprom block
void writeBlock_EEP(word startAddr, word eepSize) {
// Setup
// Set CS_ROM(PH3) WR(PH5) RD(PH6) to Output
DDRH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set A0(PF0) to Output
DDRF |= (1 << 0);
// Set A23/D7(PC7) to Output
DDRC |= (1 << 7);
// Set CS_ROM(PH3) WR(PH5) RD(PH6) to High
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set A0(PF0) to High
PORTF |= (1 << 0);
// Set A23/D7(PC7) to High
PORTC |= (1 << 7);
__asm__("nop\n\t"
"nop\n\t");
// Write 64*8=512 bytes
for (word currAddr = startAddr; currAddr < startAddr + 64; currAddr++) {
// Set CS_ROM(PH3) to LOW
PORTH &= ~(1 << 3);
// Send write request "10"
// Set A0(PF0) to High
PORTF |= (1 << 0);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// Set WR(PH5) to High
PORTH |= (1 << 5);
// Set A0(PF0) to LOW
PORTF &= ~(1 << 0);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// Set WR(PH5) to High
PORTH |= (1 << 5);
// Send either 6 or 14 bit address
if (eepSize == 4) {
send_GBA(currAddr, 6);
} else {
send_GBA(currAddr, 14);
}
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Send data
for (byte currByte = 0; currByte < 8; currByte++) {
send_GBA(sdBuffer[(currAddr - startAddr) * 8 + currByte], 8);
}
// Send stop bit
// Set A0(PF0) to LOW
PORTF &= ~(1 << 0);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// WR(PH5) to High
PORTH |= (1 << 5);
// Set CS_ROM(PH3) to High
PORTH |= (1 << 3);
// Wait until done
// Set A0(PF0) to Input
DDRF &= ~(1 << 0);
do {
// Set CS_ROM(PH3) RD(PH6) to LOW
PORTH &= ~((1 << 3) | (1 << 6));
// Set CS_ROM(PH3) RD(PH6) to High
PORTH |= (1 << 3) | (1 << 6);
} while ((PINF & 0x1) == 0);
// Set A0(PF0) to Output
DDRF |= (1 << 0);
}
}
// Reads 512 bytes from eeprom
void readBlock_EEP(word startAddress, word eepSize) {
// Setup
// Set CS_ROM(PH3) WR(PH5) RD(PH6) to Output
DDRH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set A0(PF0) to Output
DDRF |= (1 << 0);
// Set A23/D7(PC7) to Output
DDRC |= (1 << 7);
// Set CS_ROM(PH3) WR(PH5) RD(PH6) to High
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set A0(PF0) to High
PORTF |= (1 << 0);
// Set A23/D7(PC7) to High
PORTC |= (1 << 7);
__asm__("nop\n\t"
"nop\n\t");
// Read 64*8=512 bytes
for (word currAddr = startAddress; currAddr < startAddress + 64; currAddr++) {
// Set CS_ROM(PH3) to LOW
PORTH &= ~(1 << 3);
// Send read request "11"
// Set A0(PF0) to High
PORTF |= (1 << 0);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// Set WR(PH5) to High
PORTH |= (1 << 5);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// Set WR(PH5) to High
PORTH |= (1 << 5);
// Send either 6 or 14 bit address
if (eepSize == 4) {
send_GBA(currAddr, 6);
} else {
send_GBA(currAddr, 14);
}
// Send stop bit
// Set A0(PF0) to LOW
PORTF &= ~(1 << 0);
// Set WR(PH5) to LOW
PORTH &= ~(1 << 5);
// WR(PH5) to High
PORTH |= (1 << 5);
// Set CS_ROM(PH3) to High
PORTH |= (1 << 3);
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Read data
// Set A0(PF0) to Input
DDRF &= ~(1 << 0);
// Set CS_ROM(PH3) to low
PORTH &= ~(1 << 3);
// Array that holds the bits
bool tempBits[65];
// Ignore the first 4 bits
for (byte i = 0; i < 4; i++) {
// Set RD(PH6) to LOW
PORTH &= ~(1 << 6);
// Set RD(PH6) to High
PORTH |= (1 << 6);
}
// Read the remaining 64bits into array
for (byte currBit = 0; currBit < 64; currBit++) {
// Set RD(PH6) to LOW
PORTH &= ~(1 << 6);
// Set RD(PH6) to High
PORTH |= (1 << 6);
// Read bit from A0(PF0)
tempBits[currBit] = (PINF & 0x1);
}
// Set CS_ROM(PH3) to High
PORTH |= (1 << 3);
// Set A0(PF0) to High
PORTF |= (1 << 0);
// Set A0(PF0) to Output
DDRF |= (1 << 0);
// OR 8 bits into one byte for a total of 8 bytes
for (byte j = 0; j < 64; j += 8) {
sdBuffer[((currAddr - startAddress) * 8) + (j / 8)] = tempBits[0 + j] << 7 | tempBits[1 + j] << 6 | tempBits[2 + j] << 5 | tempBits[3 + j] << 4 | tempBits[4 + j] << 3 | tempBits[5 + j] << 2 | tempBits[6 + j] << 1 | tempBits[7 + j];
}
}
}
// Check if the SRAM was written without any error
unsigned long verifyEEP_GBA(word eepSize) {
unsigned long wrError = 0;
//open file on sd card
if (!myFile.open(filePath, O_READ)) {
print_Error(F("SD Error"), true);
}
// Fill sd Buffer
for (word currAddress = 0; currAddress < eepSize * 16; currAddress += 64) {
// Disable interrupts for more uniform clock pulses
noInterrupts();
readBlock_EEP(currAddress, eepSize);
interrupts();
// Compare
for (int currByte = 0; currByte < 512; currByte++) {
if (sdBuffer[currByte] != myFile.read()) {
wrError++;
}
}
}
myFile.close();
return wrError;
}
/******************************************
GBA REPRO Functions (32MB Intel 4000L0YBQ0 and 16MB MX29GL128E)
*****************************************/
// Reset to read mode
void resetIntel_GBA(unsigned long partitionSize) {
for (unsigned long currPartition = 0; currPartition < cartSize; currPartition += partitionSize) {
writeWord_GBA(currPartition, 0xFFFF);
}
}
void resetMX29GL128E_GBA() {
writeWord_GAB(0, 0xF0);
}
boolean sectorCheckMX29GL128E_GBA() {
boolean sectorProtect = 0;
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(0xAAA, 0x90);
for (unsigned long currSector = 0x0; currSector < 0xFFFFFF; currSector += 0x20000) {
if (readWord_GAB(currSector + 0x04) != 0x0)
sectorProtect = 1;
}
resetMX29GL128E_GBA();
return sectorProtect;
}
void idFlashrom_GBA() {
// Send Intel ID command to flashrom
writeWord_GBA(0, 0x90);
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Read flashrom ID
sprintf(flashid, "%02X%02X", ((readWord_GBA(0x2) >> 8) & 0xFF), (readWord_GBA(0x4) & 0xFF));
// Intel Strataflash
if (strcmp(flashid, "8802") == 0 || (strcmp(flashid, "8816") == 0)) {
cartSize = 0x2000000;
} else {
// Send swapped MX29GL128E/MSP55LV128 ID command to flashrom
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(0xAAA, 0x90);
__asm__("nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t");
// Read flashrom ID
sprintf(flashid, "%02X%02X", ((readWord_GAB(0x2) >> 8) & 0xFF), (readWord_GAB(0x2) & 0xFF));
// MX29GL128E or MSP55LV128
if (strcmp(flashid, "227E") == 0) {
// MX is 0xC2 and MSP is 0x4 or 0x1
romType = (readWord_GAB(0x0) & 0xFF);
cartSize = 0x1000000;
resetMX29GL128E_GBA();
} else {
println_Msg(F("Error"));
println_Msg(F(""));
println_Msg(F("Unknown Flash"));
print_Msg(F("Flash ID: "));
println_Msg(flashid);
println_Msg(F(""));
print_Error(F("Check voltage"), true);
}
}
}
boolean blankcheckFlashrom_GBA() {
for (unsigned long currSector = 0; currSector < fileSize; currSector += 0x20000) {
// Blink led
blinkLED();
for (unsigned long currByte = 0; currByte < 0x20000; currByte += 2) {
if (readWord_GBA(currSector + currByte) != 0xFFFF) {
return 0;
}
}
}
return 1;
}
void eraseIntel4000_GBA() {
// If the game is smaller than 16Mbit only erase the needed blocks
unsigned long lastBlock = 0xFFFFFF;
if (fileSize < 0xFFFFFF)
lastBlock = fileSize;
// Erase 4 blocks with 16kwords each
for (unsigned long currBlock = 0x0; currBlock < 0x1FFFF; currBlock += 0x8000) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
}
// Erase 126 blocks with 64kwords each
for (unsigned long currBlock = 0x20000; currBlock < lastBlock; currBlock += 0x1FFFF) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
// Blink led
blinkLED();
}
// Erase the second chip
if (fileSize > 0xFFFFFF) {
// 126 blocks with 64kwords each
for (unsigned long currBlock = 0x1000000; currBlock < 0x1FDFFFF; currBlock += 0x1FFFF) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
// Blink led
blinkLED();
}
// 4 blocks with 16kword each
for (unsigned long currBlock = 0x1FE0000; currBlock < 0x1FFFFFF; currBlock += 0x8000) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
// Blink led
blinkLED();
}
}
}
void eraseIntel4400_GBA() {
// If the game is smaller than 32Mbit only erase the needed blocks
unsigned long lastBlock = 0x1FFFFFF;
if (fileSize < 0x1FFFFFF)
lastBlock = fileSize;
// Erase 4 blocks with 16kwords each
for (unsigned long currBlock = 0x0; currBlock < 0x1FFFF; currBlock += 0x8000) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
}
// Erase 255 blocks with 64kwords each
for (unsigned long currBlock = 0x20000; currBlock < lastBlock; currBlock += 0x1FFFF) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
// Blink led
blinkLED();
}
/* No need to erase the second chip as max rom size is 32MB
if (fileSize > 0x2000000) {
// 255 blocks with 64kwords each
for (unsigned long currBlock = 0x2000000; currBlock < 0x3FDFFFF; currBlock += 0x1FFFF) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
// Blink led
blinkLED();
}
// 4 blocks with 16kword each
for (unsigned long currBlock = 0x3FE0000; currBlock < 0x3FFFFFF; currBlock += 0x8000) {
// Unlock Block
writeWord_GBA(currBlock, 0x60);
writeWord_GBA(currBlock, 0xD0);
// Erase Command
writeWord_GBA(currBlock, 0x20);
writeWord_GBA(currBlock, 0xD0);
// Read the status register
word statusReg = readWord_GBA(currBlock);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock);
}
// Blink led
blinkLED();
}
}*/
}
void sectorEraseMSP55LV128_GBA() {
unsigned long lastSector = 0xFFFFFF;
// Erase 256 sectors with 64kbytes each
unsigned long currSector;
for (currSector = 0x0; currSector < lastSector; currSector += 0x10000) {
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(0xAAA, 0x80);
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(currSector, 0x30);
// Read the status register
word statusReg = readWord_GAB(currSector);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GAB(currSector);
}
// Blink LED
blinkLED();
}
}
void sectorEraseMX29GL128E_GBA() {
unsigned long lastSector = 0xFFFFFF;
// Erase 128 sectors with 128kbytes each
unsigned long currSector;
for (currSector = 0x0; currSector < lastSector; currSector += 0x20000) {
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(0xAAA, 0x80);
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(currSector, 0x30);
// Read the status register
word statusReg = readWord_GAB(currSector);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GAB(currSector);
}
// Blink LED
blinkLED();
}
}
void writeIntel4000_GBA() {
for (unsigned long currBlock = 0; currBlock < fileSize; currBlock += 0x20000) {
// Blink led
blinkLED();
// Write to flashrom
for (unsigned long currSdBuffer = 0; currSdBuffer < 0x20000; currSdBuffer += 512) {
// Fill SD buffer
myFile.read(sdBuffer, 512);
// Write 32 words at a time
for (int currWriteBuffer = 0; currWriteBuffer < 512; currWriteBuffer += 64) {
// Unlock Block
writeWord_GBA(currBlock + currSdBuffer + currWriteBuffer, 0x60);
writeWord_GBA(currBlock + currSdBuffer + currWriteBuffer, 0xD0);
// Buffered program command
writeWord_GBA(currBlock + currSdBuffer + currWriteBuffer, 0xE8);
// Check Status register
word statusReg = readWord_GBA(currBlock + currSdBuffer + currWriteBuffer);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock + currSdBuffer + currWriteBuffer);
}
// Write word count (minus 1)
writeWord_GBA(currBlock + currSdBuffer + currWriteBuffer, 0x1F);
// Write buffer
for (byte currByte = 0; currByte < 64; currByte += 2) {
// Join two bytes into one word
word currWord = ((sdBuffer[currWriteBuffer + currByte + 1] & 0xFF) << 8) | (sdBuffer[currWriteBuffer + currByte] & 0xFF);
writeWord_GBA(currBlock + currSdBuffer + currWriteBuffer + currByte, currWord);
}
// Write Buffer to Flash
writeWord_GBA(currBlock + currSdBuffer + currWriteBuffer + 62, 0xD0);
// Read the status register at last written address
statusReg = readWord_GBA(currBlock + currSdBuffer + currWriteBuffer + 62);
while ((statusReg | 0xFF7F) != 0xFFFF) {
statusReg = readWord_GBA(currBlock + currSdBuffer + currWriteBuffer + 62);
}
}
}
}
}
void writeMSP55LV128_GBA() {
for (unsigned long currSector = 0; currSector < fileSize; currSector += 0x10000) {
// Blink led
blinkLED();
// Write to flashrom
for (unsigned long currSdBuffer = 0; currSdBuffer < 0x10000; currSdBuffer += 512) {
// Fill SD buffer
myFile.read(sdBuffer, 512);
// Write 16 words at a time
for (int currWriteBuffer = 0; currWriteBuffer < 512; currWriteBuffer += 32) {
// Write Buffer command
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(currSector, 0x25);
// Write word count (minus 1)
writeWord_GAB(currSector, 0xF);
// Write buffer
word currWord;
for (byte currByte = 0; currByte < 32; currByte += 2) {
// Join two bytes into one word
currWord = ((sdBuffer[currWriteBuffer + currByte + 1] & 0xFF) << 8) | (sdBuffer[currWriteBuffer + currByte] & 0xFF);
writeWord_GBA(currSector + currSdBuffer + currWriteBuffer + currByte, currWord);
}
// Confirm write buffer
writeWord_GAB(currSector, 0x29);
// Read the status register
word statusReg = readWord_GAB(currSector + currSdBuffer + currWriteBuffer + 30);
while ((statusReg | 0xFF7F) != (currWord | 0xFF7F)) {
statusReg = readWord_GAB(currSector + currSdBuffer + currWriteBuffer + 30);
}
}
}
}
}
void writeMX29GL128E_GBA() {
for (unsigned long currSector = 0; currSector < fileSize; currSector += 0x20000) {
// Blink led
blinkLED();
// Write to flashrom
for (unsigned long currSdBuffer = 0; currSdBuffer < 0x20000; currSdBuffer += 512) {
// Fill SD buffer
myFile.read(sdBuffer, 512);
// Write 32 words at a time
for (int currWriteBuffer = 0; currWriteBuffer < 512; currWriteBuffer += 64) {
// Write Buffer command
writeWord_GAB(0xAAA, 0xAA);
writeWord_GAB(0x555, 0x55);
writeWord_GAB(currSector, 0x25);
// Write word count (minus 1)
writeWord_GAB(currSector, 0x1F);
// Write buffer
word currWord;
for (byte currByte = 0; currByte < 64; currByte += 2) {
// Join two bytes into one word
currWord = ((sdBuffer[currWriteBuffer + currByte + 1] & 0xFF) << 8) | (sdBuffer[currWriteBuffer + currByte] & 0xFF);
writeWord_GBA(currSector + currSdBuffer + currWriteBuffer + currByte, currWord);
}
// Confirm write buffer
writeWord_GAB(currSector, 0x29);
// Read the status register
word statusReg = readWord_GAB(currSector + currSdBuffer + currWriteBuffer + 62);
while ((statusReg | 0xFF7F) != (currWord | 0xFF7F)) {
statusReg = readWord_GAB(currSector + currSdBuffer + currWriteBuffer + 62);
}
}
}
}
}
boolean verifyFlashrom_GBA() {
// Open file on sd card
if (myFile.open(filePath, O_READ)) {
writeErrors = 0;
for (unsigned long currSector = 0; currSector < fileSize; currSector += 131072) {
// Blink led
blinkLED();
for (unsigned long currSdBuffer = 0; currSdBuffer < 131072; currSdBuffer += 512) {
// Fill SD buffer
myFile.read(sdBuffer, 512);
for (int currByte = 0; currByte < 512; currByte += 2) {
// Join two bytes into one word
word currWord = ((sdBuffer[currByte + 1] & 0xFF) << 8) | (sdBuffer[currByte] & 0xFF);
// Compare both
if (readWord_GBA(currSector + currSdBuffer + currByte) != currWord) {
writeErrors++;
myFile.close();
return 0;
}
}
}
}
// Close the file:
myFile.close();
if (writeErrors == 0) {
return 1;
} else {
return 0;
}
} else {
print_Error(F("Can't open file"), true);
return 9999;
}
}
void flashRepro_GBA() {
// Check flashrom ID's
idFlashrom_GBA();
if ((strcmp(flashid, "8802") == 0) || (strcmp(flashid, "8816") == 0) || (strcmp(flashid, "227E") == 0)) {
print_Msg(F("ID: "));
print_Msg(flashid);
print_Msg(F(" Size: "));
print_Msg(cartSize / 0x100000);
println_Msg(F("MB"));
// MX29GL128E or MSP55LV128(N)
if (strcmp(flashid, "227E") == 0) {
// MX is 0xC2 and MSP55LV128 is 0x4 and MSP55LV128N 0x1
if (romType == 0xC2) {
println_Msg(F("Macronix MX29GL128E"));
} else if ((romType == 0x1) || (romType == 0x4)) {
println_Msg(F("Fujitsu MSP55LV128N"));
} else if ((romType == 0x89)) {
println_Msg(F("Intel PC28F256M29"));
} else if ((romType == 0x20)) {
println_Msg(F("ST M29W128GH"));
} else {
print_Msg(F("romType: 0x"));
println_Msg(romType, HEX);
print_Error(F("Unknown manufacturer"), true);
}
}
// Intel 4000L0YBQ0
else if (strcmp(flashid, "8802") == 0) {
println_Msg(F("Intel 4000L0YBQ0"));
}
// Intel 4400L0ZDQ0
else if (strcmp(flashid, "8816") == 0) {
println_Msg(F("Intel 4400L0ZDQ0"));
}
println_Msg("");
println_Msg(F("This will erase your"));
println_Msg(F("Repro Cartridge."));
println_Msg(F(""));
println_Msg("");
println_Msg(F("Press Button"));
display_Update();
wait();
// Launch file browser
filePath[0] = '\0';
sd.chdir("/");
fileBrowser(F("Select gba file"));
display_Clear();
display_Update();
// Create filepath
sprintf(filePath, "%s/%s", filePath, fileName);
// Open file on sd card
if (myFile.open(filePath, O_READ)) {
// Get rom size from file
fileSize = myFile.fileSize();
print_Msg(F("File size: "));
print_Msg(fileSize / 0x100000);
println_Msg(F("MB"));
display_Update();
// Erase needed sectors
if (strcmp(flashid, "8802") == 0) {
println_Msg(F("Erasing..."));
display_Update();
eraseIntel4000_GBA();
resetIntel_GBA(0x200000);
} else if (strcmp(flashid, "8816") == 0) {
println_Msg(F("Erasing..."));
display_Update();
eraseIntel4400_GBA();
resetIntel_GBA(0x200000);
} else if (strcmp(flashid, "227E") == 0) {
//if (sectorCheckMX29GL128E_GBA()) {
//print_Error(F("Sector Protected"), true);
//}
//else {
println_Msg(F("Erasing..."));
display_Update();
if ((romType == 0xC2) || (romType == 0x89) || (romType == 0x20)) {
//MX29GL128E
//PC28F256M29 (0x89)
sectorEraseMX29GL128E_GBA();
} else if ((romType == 0x1) || (romType == 0x4)) {
//MSP55LV128(N)
sectorEraseMSP55LV128_GBA();
}
//}
}
/* Skip blankcheck to save time
print_Msg(F("Blankcheck..."));
display_Update();
if (blankcheckFlashrom_GBA()) {
println_Msg(F("OK"));
*/
//Write flashrom
print_Msg(F("Writing "));
println_Msg(filePath);
display_Update();
if ((strcmp(flashid, "8802") == 0) || (strcmp(flashid, "8816") == 0)) {
writeIntel4000_GBA();
} else if (strcmp(flashid, "227E") == 0) {
if ((romType == 0xC2) || (romType == 0x89) || (romType == 0x20)) {
//MX29GL128E (0xC2)
//PC28F256M29 (0x89)
writeMX29GL128E_GBA();
} else if ((romType == 0x1) || (romType == 0x4)) {
//MSP55LV128(N)
writeMSP55LV128_GBA();
}
}
// Close the file:
myFile.close();
// Verify
print_Msg(F("Verifying..."));
display_Update();
if (strcmp(flashid, "8802") == 0) {
// Don't know the correct size so just take some guesses
resetIntel_GBA(0x8000);
delay(1000);
resetIntel_GBA(0x100000);
delay(1000);
resetIntel_GBA(0x200000);
delay(1000);
} else if (strcmp(flashid, "8816") == 0) {
resetIntel_GBA(0x200000);
delay(1000);
}
else if (strcmp(flashid, "227E") == 0) {
resetMX29GL128E_GBA();
delay(1000);
}
if (verifyFlashrom_GBA() == 1) {
println_Msg(F("OK"));
display_Update();
} else {
print_Error(F("ERROR"), true);
}
/* Skipped blankcheck
}
else {
print_Error(F("failed"), true);
}
*/
} else {
print_Error(F("Can't open file"), true);
}
} else {
println_Msg(F("Error"));
println_Msg(F(""));
println_Msg(F("Unknown Flash"));
print_Msg(F("Flash ID: "));
println_Msg(flashid);
println_Msg(F(""));
print_Error(F("Check voltage"), true);
}
}
#endif
//******************************************
// End of File
//******************************************
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