Mirrors/cartreader
2
0
Fork 0
mirror of https://github.com/sanni/cartreader.git synced 2024-11-14 08:55:06 +01:00
Code Issues Projects Releases Wiki Activity

V19C: Added GBA Save support for SST 39VF512 Flashrom

Browse Source
This commit is contained in:
sanni 2016-09-21 00:04:04 +02:00 committed by GitHub
parent bdadbf2eb0
commit 3825590018
3 changed files with 420 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
Cart_Reader/Cart_Reader.ino
View File

@ -2,8 +2,8 @@
Cartridge Reader for Arduino Mega2560
Author: sanni
Date: 2016-09-18
Version: V19B
Date: 2016-09-21
Version: V19C
SD lib: https://github.com/greiman/SdFat
LCD lib: https://github.com/adafruit/Adafruit_SSD1306
@ -33,7 +33,7 @@
lukeskaff - Nintendo DS GBA slot timing
**********************************************************************************/
char ver[5] = "V19B";
char ver[5] = "V19C";
/******************************************
Define Output
@ -49,6 +49,13 @@ char ver[5] = "V19B";
// If you have two buttons on your cart reader you can remove the //
//#define enable_Button2
/******************************************
Define SD Speed
******************************************/
// Change to half speed if you get an sd error
#define sdSpeed SPI_FULL_SPEED
//#define sdSpeed SPI_HALF_SPEED
/******************************************
Pinout
******************************************/
@ -180,6 +187,7 @@ bool errorLvl = 0;
byte romVersion = 0;
char cartID[5];
unsigned long cartSize;
char flashid[5];
// Variable to count errors
unsigned long writeErrors;
@ -530,7 +538,7 @@ void setup() {
}
// Init SD card
if (!sd.begin(chipSelectPin, SPI_HALF_SPEED)) {
if (!sd.begin(chipSelectPin, sdSpeed)) {
display_Clear();
print_Error(F("SD Error"), true);
}

1
Cart_Reader/FLASH.ino
View File

@ -6,7 +6,6 @@
Variables
*****************************************/
// Flashrom
char flashid[5];
unsigned long flashSize;
byte flashromType;
byte secondID = 1;

426
Cart_Reader/GBA.ino
View File

@ -112,14 +112,16 @@ void gbaMenu() {
display_Clear();
sd.chdir("/");
// 4K EEPROM
setGBA_ROM();
print_Error(F("Not supported yet"), false);
setROM_GBA();
break;
case 1:
display_Clear();
sd.chdir("/");
// 64K EEPROM
setGBA_ROM();
print_Error(F("Not supported yet"), false);
setROM_GBA();
break;
case 2:
@ -127,7 +129,7 @@ void gbaMenu() {
sd.chdir("/");
// 256K SRAM/FRAM
readFRAM_GBA(32768);
setGBA_ROM();
setROM_GBA();
break;
case 3:
@ -135,21 +137,23 @@ void gbaMenu() {
sd.chdir("/");
// 512K SRAM/FRAM
readFRAM_GBA(65536);
setGBA_ROM();
setROM_GBA();
break;
case 4:
display_Clear();
sd.chdir("/");
// 512K FLASH
setGBA_ROM();
readFLASH_GBA(65536);
setROM_GBA();
break;
case 5:
display_Clear();
sd.chdir("/");
// 1M FLASH
setGBA_ROM();
readFLASH_GBA(131072);
setROM_GBA();
break;
}
break;
@ -169,14 +173,16 @@ void gbaMenu() {
display_Clear();
sd.chdir("/");
// 4K EEPROM
setGBA_ROM();
print_Error(F("Not supported yet"), false);
setROM_GBA();
break;
case 1:
display_Clear();
sd.chdir("/");
// 64K EEPROM
setGBA_ROM();
print_Error(F("Not supported yet"), false);
setROM_GBA();
break;
case 2:
@ -196,7 +202,7 @@ void gbaMenu() {
println_Msg(F(" bytes "));
print_Error(F("did not verify."), false);
}
setGBA_ROM();
setROM_GBA();
break;
case 3:
@ -216,21 +222,53 @@ void gbaMenu() {
println_Msg(F(" bytes "));
print_Error(F("did not verify."), false);
}
setGBA_ROM();
setROM_GBA();
break;
case 4:
display_Clear();
sd.chdir("/");
// 512K FLASH
setGBA_ROM();
idFlash_GBA();
resetFLASH_GBA();
if (strcmp(flashid, "BFD4") != 0) {
println_Msg(F("Flashrom Type not supported"));
print_Msg(F("ID: "));
println_Msg(flashid);
print_Error(F(":("), true);
}
eraseFLASH_GBA();
if (blankcheckFLASH_GBA(65536)) {
writeFLASH_GBA(1, 65536);
verifyFLASH_GBA(65536);
}
else {
print_Error(F("Erase failed"), false);
}
setROM_GBA();
break;
case 5:
display_Clear();
sd.chdir("/");
// 1M FLASH
setGBA_ROM();
idFlash_GBA();
resetFLASH_GBA();
if (strcmp(flashid, "BFD4") != 0) {
println_Msg(F("Flashrom Type not supported"));
print_Msg(F("ID: "));
println_Msg(flashid);
print_Error(F(":("), true);
}
eraseFLASH_GBA();
if (blankcheckFLASH_GBA(131072)) {
writeFLASH_GBA(1, 131072);
verifyFLASH_GBA(131072);
}
else {
print_Error(F("Erase failed"), false);
}
setROM_GBA();
break;
}
break;
@ -249,7 +287,7 @@ void gbaMenu() {
Setup
*****************************************/
void setup_GBA() {
setGBA_ROM();
setROM_GBA();
// Delay until all is stable
delay(500);
@ -280,7 +318,7 @@ void setup_GBA() {
Low level functions
*****************************************/
// Setup all ports and pins for readign the rom
void setGBA_ROM() {
void setROM_GBA() {
// Set address/data pins to OUTPUT
// AD0-AD7
DDRF = 0xFF;
@ -444,7 +482,7 @@ void readROM_GBA() {
//clear the screen
display_Clear();
println_Msg(F("Creating folder: "));
println_Msg(F("Reading to: "));
println_Msg(folder);
display_Update();
@ -459,14 +497,14 @@ void readROM_GBA() {
// Read rom
for (int myAddress = 0; myAddress < cartSize; myAddress += 512) {
// Fill cartBuffer starting at myAddress and reading 512 bytes into array cartBuffer
// Fill sdBuffer starting at myAddress and reading 512 bytes
readBlock_GBA(myAddress, sdBuffer, 512);
// Write to SD
myFile.write(sdBuffer, 512);
// Pause between blocks, increase if you get errors every numBytes bytes
delayMicroseconds(10);
delayMicroseconds(20);
}
// Close the file:
@ -527,7 +565,7 @@ boolean compare_checksum_GBA () {
}
/******************************************
Game Boy SAVE Functions
GBA FRAM SAVE Functions
*****************************************/
// MB85R256 FRAM (Ferroelectric Random Access Memory) 32,768 words x 8 bits
void readFRAM_GBA (unsigned long framSize) {
@ -738,6 +776,358 @@ unsigned long verifyFRAM_GBA(unsigned long framSize) {
}
}
/******************************************
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);
// Erase command sequence
writeByteFlash_GBA(0x5555, 0xf0);
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
}
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");
// Read byte
byte tempByte = PINC;
// Arduino running at 16Mhz -> one nop = 62.5ns
__asm__("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");
// Switch WE_FLASH(PH5) to LOW
PORTH &= ~(1 << 5);
// Leave WE low for at least 40ns
__asm__("nop\n\t");
// Switch WE_FLASH(PH5) to HIGH
PORTH |= (1 << 5);
// Leave WE high for a bit
__asm__("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);
// Wait 100ms until chip is erased
delay(100);
// Set CS_FLASH(PH0) high
PORTH |= (1 << 0);
}
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;
}
void readFLASH_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;
// 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, "SAVE/%s/%d", romName, foldern);
sd.mkdir(folder, true);
sd.chdir(folder);
// Signal end of process
print_Msg(F("Reading to SAVE/"));
print_Msg(romName);
print_Msg(F("/"));
print_Msg(foldern);
print_Msg(F("/"));
print_Msg(fileName);
print_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);
}
// 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 writeFLASH_GBA (boolean browseFile, unsigned long flashSize) {
// 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("Select fla file");
// Create filepath
sprintf(filePath, "%s/%s", filePath, fileName);
display_Clear();
}
else {
sprintf(filePath, "%s", fileName);
}
print_Msg(F("Writing flash..."));
display_Update();
//open file on sd card
if (myFile.open(filePath, O_READ)) {
// Output a LOW signal on CE_FLASH(PH0)
PORTH &= ~(1 << 0);
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 20us
delayMicroseconds(20);
}
}
// 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 SRAM was written without any error
void verifyFLASH_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 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);
}
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 {
println_Msg(wrError);
print_Error(F(" Errors"), false);
}
}
//******************************************
// End of File