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V19B: Added GBA FRAM save support

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This will allow you to read/write the Fujitsu MB85R256 Ferroelectric Random Access Memory Chip
This commit is contained in:
sanni 2016-09-18 15:10:59 +02:00 committed by GitHub
parent c97c3ac855
commit bdadbf2eb0
3 changed files with 389 additions and 59 deletions
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8
Cart_Reader/Cart_Reader.ino
View File

@ -2,8 +2,8 @@
Cartridge Reader for Arduino Mega2560
Author: sanni
Date: 2016-09-14
Version: V19A
Date: 2016-09-18
Version: V19B
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] = "V19A";
char ver[5] = "V19B";
/******************************************
Define Output
@ -530,7 +530,7 @@ void setup() {
}
// Init SD card
if (!sd.begin(chipSelectPin, SPI_FULL_SPEED)) {
if (!sd.begin(chipSelectPin, SPI_HALF_SPEED)) {
display_Clear();
print_Error(F("SD Error"), true);
}

435
Cart_Reader/GBA.ino
View File

@ -6,7 +6,7 @@
Variables
*****************************************/
char calcChecksumStr[5];
byte cartBuffer[513];
byte cartBuffer[512];
const int nintendoLogo[] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x24, 0xFF, 0xAE, 0x51, 0x69, 0x9A, 0xA2, 0x21, 0x3D, 0x84, 0x82, 0x0A,
@ -31,11 +31,21 @@ const char GBAMenuItem3[] PROGMEM = "Write Save";
const char GBAMenuItem4[] PROGMEM = "Reset";
const char* const menuOptionsGBA[] PROGMEM = {GBAMenuItem1, GBAMenuItem2, GBAMenuItem3, GBAMenuItem4};
const char GBARomMenuItem1[] PROGMEM = "4MB";
const char GBARomMenuItem2[] PROGMEM = "8MB";
const char GBARomMenuItem3[] PROGMEM = "16MB";
const char GBARomMenuItem4[] PROGMEM = "32MB";
const char* const menuOptionsGBARom[] PROGMEM = {GBARomMenuItem1, GBARomMenuItem2, GBARomMenuItem3, GBARomMenuItem4};
// Rom menu
const char GBARomItem1[] PROGMEM = "4MB";
const char GBARomItem2[] PROGMEM = "8MB";
const char GBARomItem3[] PROGMEM = "16MB";
const char GBARomItem4[] PROGMEM = "32MB";
const char* const romOptionsGBA[] PROGMEM = {GBARomItem1, GBARomItem2, GBARomItem3, GBARomItem4};
// Save menu
const char GBASaveItem1[] PROGMEM = "4K EEPROM";
const char GBASaveItem2[] PROGMEM = "64K EEPROM";
const char GBASaveItem3[] PROGMEM = "256K SRAM/FRAM";
const char GBASaveItem4[] PROGMEM = "512K SRAM/FRAM";
const char GBASaveItem5[] PROGMEM = "512K FLASHROM";
const char GBASaveItem6[] PROGMEM = "1M FLASHROM";
const char* const saveOptionsGBA[] PROGMEM = {GBASaveItem1, GBASaveItem2, GBASaveItem3, GBASaveItem4, GBASaveItem5, GBASaveItem6};
void gbaMenu() {
// create menu with title and 4 options to choose from
@ -52,7 +62,7 @@ void gbaMenu() {
// create submenu with title and 4 options to choose from
unsigned char GBARomMenu;
// Copy menuOptions out of progmem
convertPgm(menuOptionsGBARom, 4);
convertPgm(romOptionsGBA, 4);
GBARomMenu = question_box("Select ROM size", menuOptions, 4, 0);
// wait for user choice to come back from the question box menu
@ -88,28 +98,140 @@ void gbaMenu() {
break;
case 1:
display_Clear();
// Change working dir to root
sd.chdir("/");
readSAVE_GBA();
// Read save
// create submenu with title and 6 options to choose from
unsigned char GBASaveMenu;
// Copy menuOptions out of progmem
convertPgm(saveOptionsGBA, 6);
GBASaveMenu = question_box("Select save type", menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (GBASaveMenu)
{
case 0:
display_Clear();
sd.chdir("/");
// 4K EEPROM
setGBA_ROM();
break;
case 1:
display_Clear();
sd.chdir("/");
// 64K EEPROM
setGBA_ROM();
break;
case 2:
display_Clear();
sd.chdir("/");
// 256K SRAM/FRAM
readFRAM_GBA(32768);
setGBA_ROM();
break;
case 3:
display_Clear();
sd.chdir("/");
// 512K SRAM/FRAM
readFRAM_GBA(65536);
setGBA_ROM();
break;
case 4:
display_Clear();
sd.chdir("/");
// 512K FLASH
setGBA_ROM();
break;
case 5:
display_Clear();
sd.chdir("/");
// 1M FLASH
setGBA_ROM();
break;
}
break;
case 2:
display_Clear();
// Change working dir to root
sd.chdir("/");
writeSAVE_GBA();
unsigned long wrErrors;
wrErrors = verifySAVE_GBA();
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);
// Write save
// create submenu with title and 6 options to choose from
unsigned char GBASavesMenu;
// Copy menuOptions out of progmem
convertPgm(saveOptionsGBA, 6);
GBASavesMenu = question_box("Select save type", menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (GBASavesMenu)
{
case 0:
display_Clear();
sd.chdir("/");
// 4K EEPROM
setGBA_ROM();
break;
case 1:
display_Clear();
sd.chdir("/");
// 64K EEPROM
setGBA_ROM();
break;
case 2:
display_Clear();
sd.chdir("/");
// 256K SRAM/FRAM
// Change working dir to root
writeFRAM_GBA(1, 32768);
writeErrors = verifyFRAM_GBA(32768);
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);
}
setGBA_ROM();
break;
case 3:
display_Clear();
sd.chdir("/");
// 512K SRAM/FRAM
// Change working dir to root
writeFRAM_GBA(1, 65536);
writeErrors = verifyFRAM_GBA(65536);
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);
}
setGBA_ROM();
break;
case 4:
display_Clear();
sd.chdir("/");
// 512K FLASH
setGBA_ROM();
break;
case 5:
display_Clear();
sd.chdir("/");
// 1M FLASH
setGBA_ROM();
break;
}
break;
@ -127,28 +249,7 @@ void gbaMenu() {
Setup
*****************************************/
void setup_GBA() {
// Set address/data pins to OUTPUT
// AD0-AD7
DDRF = 0xFF;
// AD8-AD15
DDRK = 0xFF;
// AD16-AD23
DDRC = 0xFF;
// Output a HIGH signal
// AD0-AD7
PORTF = 0xFF;
// AD8-AD15
PORTK = 0xFF;
// AD16-AD23
PORTC = 0xFF;
// Set Control Pins to Output CS_SRAM(PH0) CS_ROM(PH3) WR(PH5) RD(PH6)
// CLK is N/C and IRQ is conected to GND inside the cartridge
DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
// Output a high signal on CS_SRAM(PH0) CS_ROM(PH3) WR(PH5) RD(PH6)
// At power-on all the control lines are high/disabled
PORTH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
setGBA_ROM();
// Delay until all is stable
delay(500);
@ -178,6 +279,32 @@ void setup_GBA() {
/******************************************
Low level functions
*****************************************/
// Setup all ports and pins for readign the rom
void setGBA_ROM() {
// Set address/data pins to OUTPUT
// AD0-AD7
DDRF = 0xFF;
// AD8-AD15
DDRK = 0xFF;
// AD16-AD23
DDRC = 0xFF;
// Output a HIGH signal
// AD0-AD7
PORTF = 0xFF;
// AD8-AD15
PORTK = 0xFF;
// AD16-AD23
PORTC = 0xFF;
// Set Control Pins to Output CS_SRAM(PH0) CS_ROM(PH3) WR(PH5) RD(PH6)
// CLK is N/C and IRQ is conected to GND inside the cartridge
DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
// Output a high signal on CS_SRAM(PH0) CS_ROM(PH3) WR(PH5) RD(PH6)
// At power-on all the control lines are high/disabled
PORTH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
}
// Read one word and toggle both CS and RD
word readWord_GBA(unsigned long myAddress) {
//divide address by two since we read two bytes per offset
@ -239,7 +366,7 @@ void readBlock_GBA(unsigned long myAddress, byte myArray[] , int numBytes) {
}
}
/******************************************
Game Boy functions
Game Boy ROM Functions
*****************************************/
// Read info out of rom header
void getCartInfo_GBA() {
@ -399,15 +526,219 @@ boolean compare_checksum_GBA () {
}
}
void readSAVE_GBA() {
/******************************************
Game Boy 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;
// Disable Pullups
//PORTC = 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, "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);
}
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();
}
void writeSAVE_GBA() {
// 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 high signal
//PORTC = 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("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);
}
}
unsigned long verifySAVE_GBA() {
// 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;
// Disable Pullups
//PORTC = 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);
}
}
//******************************************
// End of File
//******************************************

5
Cart_Reader/N64.ino
View File

@ -19,6 +19,8 @@
// Received N64 Eeprom data bits, 1 page
bool tempBits[65];
int eepPages;
// Savetype
byte saveType;
// N64 Controller
// 256 bits of received Controller data
@ -35,9 +37,6 @@ N64_status;
String button = "N/A";
String lastbutton = "N/A";
// Cartridge ID and size
byte saveType;
// Rom base address
unsigned long romBase = 0x10000000;
unsigned long sramBase = 0x08000000;