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cartreader/Cart_Reader/NP.ino
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2018-10-14 10:09:25 +02:00

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//******************************************
// NINTENDO POWER MODULE
// (GB Memory starts at around line 1460)
//******************************************
/******************************************
SF Memory Cassette
******************************************/
/******************************************
SF Memory Clock Source
******************************************/
// The clock signal for the SF Memory cassette
// is generated with the Adafruit Clock Generator
// or a similar external clock source
/******************************************
Variables
*****************************************/
// SF Memory status
byte sfmReady = 0;
// SF Memory Menu
boolean hasMenu = true;
byte numGames = 0;
// Arrays that hold game info
int gameSize[8];
int saveSize[8];
byte gameAddress[8];
byte gameVersion[8];
char gameCode[8][10];
boolean hirom[8];
/******************************************
Menu
*****************************************/
// SFM menu items
static const char sfmMenuItem1[] PROGMEM = "Game Menu";
static const char sfmMenuItem2[] PROGMEM = "Flash Menu";
static const char sfmMenuItem3[] PROGMEM = "Reset";
static const char* const menuOptionsSFM[] PROGMEM = {sfmMenuItem1, sfmMenuItem2, sfmMenuItem3};
// SFM flash menu items
static const char sfmFlashMenuItem1[] PROGMEM = "Read Flash";
static const char sfmFlashMenuItem2[] PROGMEM = "Write Flash";
static const char sfmFlashMenuItem3[] PROGMEM = "Print Mapping";
static const char sfmFlashMenuItem4[] PROGMEM = "Read Mapping";
static const char sfmFlashMenuItem5[] PROGMEM = "Write Mapping";
static const char sfmFlashMenuItem6[] PROGMEM = "Back";
static const char* const menuOptionsSFMFlash[] PROGMEM = {sfmFlashMenuItem1, sfmFlashMenuItem2, sfmFlashMenuItem3, sfmFlashMenuItem4, sfmFlashMenuItem5, sfmFlashMenuItem6};
// SFM game menu items
static const char sfmGameMenuItem1[] PROGMEM = "Read Sram";
static const char sfmGameMenuItem2[] PROGMEM = "Read Game";
static const char sfmGameMenuItem3[] PROGMEM = "Write Sram";
static const char sfmGameMenuItem4[] PROGMEM = "Switch Game";
static const char sfmGameMenuItem5[] PROGMEM = "Reset";
static const char* const menuOptionsSFMGame[] PROGMEM = {sfmGameMenuItem1, sfmGameMenuItem2, sfmGameMenuItem3, sfmGameMenuItem4, sfmGameMenuItem5};
void sfmMenu() {
// create menu with title and 3 options to choose from
unsigned char mainMenu;
// Copy menuOptions out of progmem
convertPgm(menuOptionsSFM, 3);
mainMenu = question_box("SF Memory", menuOptions, 3, 0);
// wait for user choice to come back from the question box menu
switch (mainMenu)
{
// Game menu
case 0:
sfmGameMenu();
break;
// Flash menu
case 1:
mode = mode_SFM_Flash;
break;
// Reset
case 2:
asm volatile (" jmp 0");
break;
}
}
void sfmGameMenu() {
// Switch to hirom all
if (send_SFM(0x04) == 0x2A) {
delay(300);
// Fill arrays with data
getGames();
if (hasMenu) {
// Create submenu options
char menuOptionsSFMGames[8][20];
for (int i = 0; i < (numGames); i++) {
strncpy(menuOptionsSFMGames[i], gameCode[i], 10);
}
// Create menu with title and numGames options to choose from
unsigned char gameSubMenu;
// wait for user choice to come back from the question box menu
gameSubMenu = question_box("Select Game", menuOptionsSFMGames, numGames, 0);
// Switch to game
send_SFM(gameSubMenu + 0x80);
delay(200);
// Check for successfull switch
byte timeout = 0;
while (readBank_SNES(0, 0x2400) != 0x7D) {
delay(200);
// Try again
send_SFM(gameSubMenu + 0x80);
delay(200);
timeout++;
// Abort, something is wrong
if (timeout == 5) {
display_Clear();
print_Msg(F("Game "));
print_Msg(gameSubMenu + 0x80, HEX);
println_Msg(F(" Timeout"));
println_Msg(readBank_SNES(0, 0x2400), HEX);
println_Msg(F(""));
print_Error(F("Powercycle SFM cart"), true);
}
}
// Copy gameCode to romName in case of japanese chars in romName
strcpy(romName, gameCode[gameSubMenu + 1]);
// Print info
getCartInfo_SNES();
mode = mode_SFM_Game;
}
else {
// No menu so switch to only game
// Switch to game
send_SFM(0x80);
delay(200);
// Copy gameCode to romName in case of japanese chars in romName
strcpy(romName, gameCode[0]);
// Print info
getCartInfo_SNES();
mode = mode_SFM_Game;
}
}
else {
print_Error(F("Switch to HiRom failed"), false);
}
}
void sfmGameOptions() {
// create menu with title and 5 options to choose from
unsigned char gameSubMenu;
// Copy menuOptions out of progmem
convertPgm(menuOptionsSFMGame, 5);
gameSubMenu = question_box("SFM Game Menu", menuOptions, 5, 0);
// wait for user choice to come back from the question box menu
switch (gameSubMenu)
{
// Read sram
case 0:
display_Clear();
// Change working dir to root
sd.chdir("/");
readSRAM();
break;
// Read rom
case 1:
display_Clear();
// Change working dir to root
sd.chdir("/");
readROM_SNES();
compare_checksum();
break;
// Write sram
case 2:
display_Clear();
// Change working dir to root
sd.chdir("/");
writeSRAM(1);
unsigned long wrErrors;
wrErrors = verifySRAM();
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);
}
break;
// Switch game
case 3:
sfmGameMenu();
break;
// Reset
case 4:
asm volatile (" jmp 0");
break;
}
if (gameSubMenu != 3) {
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
}
}
void sfmFlashMenu() {
// create menu with title and 6 options to choose from
unsigned char flashSubMenu;
// Copy menuOptions out of progmem
convertPgm(menuOptionsSFMFlash, 6);
flashSubMenu = question_box("SFM Flash Menu", menuOptions, 6, 0);
// wait for user choice to come back from the question box menu
switch (flashSubMenu)
{
// Read Flash
case 0:
// Clear screen
display_Clear();
// Reset to root directory
sd.chdir("/");
// Reset to HIROM ALL
romType = 1;
print_Msg(F("Switch to HiRom..."));
display_Update();
if (send_SFM(0x04) == 0x2A) {
println_Msg(F("OK"));
display_Update();
// Reset flash
resetFlash_SFM(0xC0);
resetFlash_SFM(0xE0);
flashSize = 4194304;
numBanks = 64;
// Get name, add extension and convert to char array for sd lib
EEPROM_readAnything(10, foldern);
sprintf(fileName, "SFM%d", foldern);
strcat(fileName, ".bin");
sd.mkdir("NP", true);
sd.chdir("NP");
// write new folder number back to eeprom
foldern = foldern + 1;
EEPROM_writeAnything(10, foldern);
// Read flash
readFlash_SFM();
}
else {
print_Error(F("Switch to HiRom failed"), false);
}
break;
// Write Flash
case 1:
// Clear screen
display_Clear();
// Print warning
println_Msg(F("Attention"));
println_Msg(F("This will erase your"));
println_Msg(F("NP Cartridge."));
println_Msg("");
println_Msg(F("Press Button"));
println_Msg(F("to continue"));
display_Update();
wait();
// Clear screen
display_Clear();
filePath[0] = '\0';
sd.chdir("/");
// Launch file browser
fileBrowser("Select 4MB file");
display_Clear();
sprintf(filePath, "%s/%s", filePath, fileName);
flashSize = 2097152;
numBanks = 32;
println_Msg(F("Writing 1st rom"));
display_Update();
// Program 1st flashrom
write_SFM(0xC0, 0);
display_Clear();
println_Msg(F("Writing 2nd rom"));
display_Update();
// Program 2nd flashrom
write_SFM(0xE0, 2097152);
break;
// Print mapping
case 2:
// Clear screen
display_Clear();
// Reset to root directory
sd.chdir("/");
// Reset to HIROM ALL
romType = 1;
print_Msg(F("Switch to HiRom..."));
display_Update();
if (send_SFM(0x04) == 0x2A) {
println_Msg(F("OK"));
display_Update();
idFlash_SFM(0xC0);
if (strcmp(flashid, "c2f3") == 0) {
idFlash_SFM(0xE0);
if (strcmp(flashid, "c2f3") == 0) {
// Reset flash
resetFlash_SFM(0xC0);
resetFlash_SFM(0xE0);
delay(100);
// Clear screen
display_Clear();
printMapping();
resetFlash_SFM(0xC0);
resetFlash_SFM(0xE0);
}
else {
print_Error(F("Error: Wrong Flash ID"), true);
}
}
else {
print_Error(F("Error: Wrong Flash ID"), true);
}
}
else {
print_Error(F("failed"), false);
}
break;
// Read mapping
case 3:
// Clear screen
display_Clear();
// Reset to root directory
sd.chdir("/");
// Reset to HIROM ALL
romType = 1;
print_Msg(F("Switch to HiRom..."));
display_Update();
if (send_SFM(0x04) == 0x2A) {
println_Msg(F("OK"));
display_Update();
idFlash_SFM(0xC0);
if (strcmp(flashid, "c2f3") == 0) {
idFlash_SFM(0xE0);
if (strcmp(flashid, "c2f3") == 0) {
// Reset flash
resetFlash_SFM(0xC0);
resetFlash_SFM(0xE0);
delay(100);
readMapping();
resetFlash_SFM(0xC0);
resetFlash_SFM(0xE0);
}
else {
print_Error(F("Error: Wrong Flash ID"), true);
}
}
else {
print_Error(F("Error: Wrong Flash ID"), true);
}
}
else {
print_Error(F("failed"), false);
}
break;
// Write mapping
case 4:
// Clear screen
display_Clear();
// Print warning
println_Msg(F("Attention"));
println_Msg(F("This will erase your"));
println_Msg(F("NP Cartridge."));
println_Msg("");
println_Msg(F("Press Button"));
println_Msg(F("to continue"));
display_Update();
wait();
// Clear screen
display_Clear();
// Reset to root directory
sd.chdir("/");
// Erase mapping
eraseMapping(0xD0);
eraseMapping(0xE0);
print_Msg(F("Blankcheck..."));
display_Update();
if (blankcheckMapping_SFM()) {
println_Msg(F("OK"));
display_Update();
}
else {
println_Msg(F("Nope"));
break;
}
// Clear screen
display_Clear();
// Clear filepath
filePath[0] = '\0';
// Reset to root directory
sd.chdir("/");
// Launch file browser
fileBrowser("Select MAP file");
display_Clear();
sprintf(filePath, "%s/%s", filePath, fileName);
display_Update();
// Write mapping
writeMapping_SFM(0xD0, 0);
writeMapping_SFM(0xE0, 256);
break;
// Go back
case 5:
mode = mode_SFM;
break;
}
if (flashSubMenu != 5) {
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
}
}
// Read the games from the menu area
void getGames() {
// Set data pins to input
dataIn();
// Set control pins to input
controlIn_SNES();
// Check if menu is present
byte menuString[] = {0x4D, 0x45, 0x4E, 0x55, 0x20, 0x50, 0x52, 0x4F, 0x47, 0x52, 0x41, 0x4D};
for (int i = 0; i < 12; i++) {
if (menuString[i] != readBank_SNES(0xC0, 0x7FC0 + i)) {
hasMenu = false;
}
}
if (hasMenu) {
// Count number of games
for (word i = 0x0000; i < 0xE000; i += 0x2000) {
if (readBank_SNES(0xC6, i) == numGames )
numGames++;
}
// Get game info
for (int i = 0; i < numGames; i++) {
// Read starting address and size
gameAddress[i] = 0xC0 + readBank_SNES(0xC6, i * 0x2000 + 0x01) * 0x8;
gameSize[i] = readBank_SNES(0xC6, i * 0x2000 + 0x03) * 128;
saveSize[i] = readBank_SNES(0xC6, i * 0x2000 + 0x05) / 8;
//check if hirom
if (readBank_SNES(gameAddress[i], 0xFFD5) == 0x31) {
hirom[i] = true;
}
else if (readBank_SNES(gameAddress[i], 0xFFD5) == 0x21) {
hirom[i] = true;
}
else {
hirom[i] = false;
}
if (hirom[i]) {
gameVersion[i] = readBank_SNES(gameAddress[i], 0xFFDB);
} else {
gameVersion[i] = readBank_SNES(gameAddress[i], 0x7FDB);
}
// Read game code
byte myByte = 0;
byte myLength = 0;
for (int j = 0; j < 9; j++) {
myByte = readBank_SNES(0xC6, i * 0x2000 + 0x07 + j);
// Remove funny characters
if (((char(myByte) >= 44 && char(myByte) <= 57) || (char(myByte) >= 65 && char(myByte) <= 122)) && myLength < 9) {
gameCode[i][myLength] = char(myByte);
myLength++;
}
}
// End char array in case game code is less than 9 chars
gameCode[i][myLength] = '\0';
}
}
else {
//check if hirom
if (readBank_SNES(0xC0, 0xFFD5) == 0x31) {
hirom[0] = true;
}
else {
hirom[0] = false;
}
if (hirom[0]) {
gameVersion[0] = readBank_SNES(0xC0, 0xFFDB);
gameCode[0][0] = 'G';
gameCode[0][1] = 'A';
gameCode[0][2] = 'M';
gameCode[0][3] = 'E';
gameCode[0][4] = '-';
gameCode[0][5] = char(readBank_SNES(0xC0, 0xFFB2));
gameCode[0][6] = char(readBank_SNES(0xC0, 0xFFB3));
gameCode[0][7] = char(readBank_SNES(0xC0, 0xFFB4));
gameCode[0][8] = char(readBank_SNES(0xC0, 0xFFB5));
gameCode[0][9] = '\0';
byte romSizeExp = readBank_SNES(0xC0, 0xFFD7) - 7;
gameSize[0] = 1;
while (romSizeExp--)
gameSize[0] *= 2;
}
else {
gameVersion[0] = readBank_SNES(0xC0, 0x7FDB);
gameCode[0][0] = 'G';
gameCode[0][1] = 'A';
gameCode[0][2] = 'M';
gameCode[0][3] = 'E';
gameCode[0][4] = '-';
gameCode[0][5] = char(readBank_SNES(0xC0, 0x7FB2));
gameCode[0][6] = char(readBank_SNES(0xC0, 0x7FB3));
gameCode[0][7] = char(readBank_SNES(0xC0, 0x7FB4));
gameCode[0][8] = char(readBank_SNES(0xC0, 0x7FB5));
gameCode[0][9] = '\0';
byte romSizeExp = readBank_SNES(0xC0, 0x7FD7) - 7;
gameSize[0] = 1;
while (romSizeExp--)
gameSize[0] *= 2;
}
}
}
/******************************************
Setup
*****************************************/
void setup_SFM() {
// Set cicrstPin(PG1) to Output
DDRG |= (1 << 1);
// Output a high signal to disable snesCIC if installed
PORTG |= (1 << 1);
// Set cichstPin(PG0) to Input
DDRG &= ~(1 << 0);
// Adafruit Clock Generator
clockgen.init(SI5351_CRYSTAL_LOAD_8PF, 0, 0);
clockgen.set_pll(SI5351_PLL_FIXED, SI5351_PLLA);
clockgen.set_pll(SI5351_PLL_FIXED, SI5351_PLLB);
// Half Clock
//clockgen.set_freq(1073863600ULL, SI5351_CLK0);
// Full Clock
clockgen.set_freq(2147727200ULL, SI5351_CLK0);
// CIC Clock
//clockgen.set_freq(307200000ULL, SI5351_CLK2);
clockgen.output_enable(SI5351_CLK0, 1);
clockgen.output_enable(SI5351_CLK1, 0);
clockgen.output_enable(SI5351_CLK2, 0);
// Set Address Pins to Output
//A0-A7
DDRF = 0xFF;
//A8-A15
DDRK = 0xFF;
//BA0-BA7
DDRL = 0xFF;
// Set Control Pins to Output RST(PH0) CS(PH3) WR(PH5) RD(PH6)
DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
// Output a high signal on all pins, pins are active low therefore everything is disabled now
PORTH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
// Set IRQ(PH4) to Input
DDRH &= ~(1 << 4);
// Activate Internal Pullup Resistors
PORTH |= (1 << 4);
// Set Data Pins (D0-D7) to Input
DDRC = 0x00;
// Enable Internal Pullups
PORTC = 0xFF;
// Wait until all is stable
delay(200);
// Switch to HiRom All
byte timeout = 0;
send_SFM(0x04);
delay(100);
while (readBank_SNES(0, 0x2400) != 0x2A) {
delay(100);
// Try again
send_SFM(0x04);
delay(100);
timeout++;
// Abort, something is wrong
if (timeout == 5) {
println_Msg(F("Hirom All Timeout"));
println_Msg(F(""));
println_Msg(F(""));
print_Error(F("Powercycle SFM cart"), true);
}
}
}
/******************************************
29F1601 flashrom functions (NP)
*****************************************/
// Reset the MX29F1601 flashrom, startbank is 0xC0 for first and 0xE0 for second flashrom
void resetFlash_SFM(int startBank) {
// Configure control pins
controlOut_SNES();
// Set data pins to output
dataOut();
// Reset command sequence
if (romType) {
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0xf0);
}
else {
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0xaa);
writeBank_SNES(0, 0x8000 + 0x2AAAL * 2, 0x55);
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0xf0);
}
}
// Print flashrom manufacturer and device ID
void idFlash_SFM(int startBank) {
// Configure control pins
controlOut_SNES();
// Set data pins to output
dataOut();
if (romType) {
// ID command sequence
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0x90);
// Set data pins to input again
dataIn();
// Set control pins to input
controlIn_SNES();
// Read the two id bytes into a string
sprintf(flashid, "%x%x", readBank_SNES(startBank, 0x00), readBank_SNES(startBank, 0x02));
}
else {
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0xaa);
writeBank_SNES(0, 0x8000 + 0x2AAAL * 2, 0x55);
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0x90);
// Set data pins to input again
dataIn();
// Set control pins to input
controlIn_SNES();
// Read the two id bytes into a string
sprintf(flashid, "%x%x", readBank_SNES(0, 0x8000), readBank_SNES(0, 0x8000 + 0x02));
}
}
// Write the flashroms by reading a file from the SD card, pos defines where in the file the reading/writing should start
void writeFlash_SFM(int startBank, uint32_t pos) {
display_Clear();
print_Msg(F("Writing Bank 0x"));
print_Msg(startBank, HEX);
print_Msg(F("..."));
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);
// Configure control pins
controlOut_SNES();
// Set data pins to output
dataOut();
if (romType) {
// Write hirom
for (int currBank = startBank; currBank < startBank + numBanks; currBank++) {
// Fill SDBuffer with 1 page at a time then write it repeat until all bytes are written
for (unsigned long currByte = 0; currByte < 0x10000; currByte += 128) {
myFile.read(sdBuffer, 128);
// Write command sequence
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0xa0);
for (byte c = 0; c < 128; c++) {
// Write one byte of data
writeBank_SNES(currBank, currByte + c, sdBuffer[c]);
if (c == 127) {
// Write the last byte twice or else it won't write at all
writeBank_SNES(currBank, currByte + c, sdBuffer[c]);
}
}
// Wait until write is finished
busyCheck_SFM(startBank);
}
}
}
else {
// Write lorom
for (int currBank = 0; currBank < numBanks; currBank++) {
for (unsigned long currByte = 0x8000; currByte < 0x10000; currByte += 128) {
myFile.read(sdBuffer, 128);
// Write command sequence
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0xaa);
writeBank_SNES(0, 0x8000 + 0x2AAAL * 2, 0x55);
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0xa0);
for (byte c = 0; c < 128; c++) {
// Write one byte of data
writeBank_SNES(currBank, currByte + c, sdBuffer[c]);
if (c == 127) {
// Write the last byte twice or else it won't write at all
writeBank_SNES(currBank, currByte + c, sdBuffer[c]);
}
}
// Wait until write is finished
busyCheck_SFM(startBank);
}
}
}
// Close the file:
myFile.close();
println_Msg("");
}
else {
print_Error(F("Can't open file on SD"), true);
}
}
// Delay between write operations based on status register
void busyCheck_SFM(byte startBank) {
// Set data pins to input
dataIn();
// Set control pins to input and therefore pull CE low and latch status register content
controlIn_SNES();
// Read register
readBank_SNES(startBank, 0x0000);
// Read D7 while D7 = 0
//1 = B00000001, 1 << 7 = B10000000, PINC = B1XXXXXXX (X = don't care), & = bitwise and
while (!(PINC & (1 << 7))) {
// CE or OE must be toggled with each subsequent status read or the
// completion of a program or erase operation will not be evident.
// Switch RD(PH6) to HIGH
PORTH |= (1 << 6);
// one nop ~62.5ns
__asm__("nop\n\t");
// Switch RD(PH6) to LOW
PORTH &= ~(1 << 6);
// one nop ~62.5ns
__asm__("nop\n\t");
}
// Configure control pins
controlOut_SNES();
// Set data pins to output
dataOut();
}
// Erase the flashrom to 0xFF
void eraseFlash_SFM(int startBank) {
// Configure control pins
controlOut_SNES();
// Set data pins to output
dataOut();
if (romType) {
// Erase command sequence
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0x80);
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0x10);
}
else {
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0xaa);
writeBank_SNES(0, 0x8000 + 0x2AAAL * 2, 0x55);
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0x80);
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0xaa);
writeBank_SNES(0, 0x8000 + 0x2AAAL * 2, 0x55);
writeBank_SNES(1, 0x8000 + 0x1555L * 2, 0x10);
}
// Wait for erase to complete
busyCheck_SFM(startBank);
}
// Check if an erase succeeded, return 1 if blank and 0 if not
byte blankcheck_SFM(int startBank) {
// Set data pins to input again
dataIn();
// Set control pins to input
controlIn_SNES();
byte blank = 1;
if (romType) {
for (int currBank = startBank; currBank < startBank + numBanks; currBank++) {
for (unsigned long currByte = 0; currByte < 0x10000; currByte++) {
if (readBank_SNES(currBank, currByte) != 0xFF) {
currBank = startBank + numBanks;
blank = 0;
}
}
}
}
else {
for (int currBank = 0; currBank < numBanks; currBank++) {
for (unsigned long currByte = 0x8000; currByte < 0x10000; currByte++) {
if (readBank_SNES(currBank, currByte) != 0xFF) {
currBank = numBanks;
blank = 0;
}
}
}
}
return blank;
}
// Check if a write succeeded, returns 0 if all is ok and number of errors if not
unsigned long verifyFlash_SFM(int startBank, uint32_t pos) {
unsigned long verified = 0;
// Open file on sd card
if (myFile.open(filePath, O_READ)) {
// Set file starting position
myFile.seekCur(pos);
// Set data pins to input
dataIn();
// Set control pins to input
controlIn_SNES();
if (romType) {
for (int currBank = startBank; currBank < startBank + numBanks; currBank++) {
for (unsigned long currByte = 0; currByte < 0x10000; currByte += 512) {
// Fill SDBuffer
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
if (readBank_SNES(currBank, currByte + c) != sdBuffer[c]) {
verified++;
}
}
}
}
}
else {
for (int currBank = 0; currBank < numBanks; currBank++) {
for (unsigned long currByte = 0x8000; currByte < 0x10000; currByte += 512) {
// Fill SDBuffer
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
if (readBank_SNES(currBank, currByte + c) != sdBuffer[c]) {
verified++;
}
}
}
}
}
// Close the file:
myFile.close();
}
else {
// SD Error
verified = 999999;
print_Error(F("Can't open file on SD"), false);
}
// Return 0 if verified ok, or number of errors
return verified;
}
// Read flashroms and save them to the SD card
void readFlash_SFM() {
// Set data pins to input
dataIn();
// Set control pins to input
controlIn_SNES();
print_Msg(F("Saving as NP/"));
print_Msg(fileName);
println_Msg(F("..."));
display_Update();
// Open file on sd card
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
print_Error(F("Can't create file on SD"), true);
}
if (romType) {
for (int currBank = 0xC0; currBank < 0xC0 + numBanks; currBank++) {
for (unsigned long currByte = 0; currByte < 0x10000; currByte += 512) {
for (int c = 0; c < 512; c++) {
sdBuffer[c] = readBank_SNES(currBank, currByte + c);
}
myFile.write(sdBuffer, 512);
}
}
}
else {
for (int currBank = 0; currBank < numBanks; currBank++) {
for (unsigned long currByte = 0x8000; currByte < 0x10000; currByte += 512) {
for (int c = 0; c < 512; c++) {
sdBuffer[c] = readBank_SNES(currBank, currByte + c);
}
myFile.write(sdBuffer, 512);
}
}
}
// Close the file:
myFile.close();
println_Msg("");
println_Msg(F("Finished reading"));
display_Update();
}
// Display protected sectors/banks as 0xc2 and unprotected as 0x00
void readSectorProtection_SFM(byte startBank) {
// Configure control pins
controlOut_SNES();
// Set data pins to output
dataOut();
// Display Sector Protection Status
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0x90);
// Configure control pins
controlIn_SNES();
// Set data pins to output
dataIn();
display_Clear();
for (int i = 0; i <= 0x1F; i++) {
print_Msg(F("Sector: 0x"));
print_Msg(startBank + i, HEX);
print_Msg(F(" Sector Protect: 0x"));
println_Msg(readBank_SNES(startBank + i, 0x04), HEX);
}
display_Update();
}
// Read the current mapping from the hidden "page buffer" and print it
void printMapping() {
// Switch to write
dataOut();
controlOut_SNES();
// Reset to defaults
writeBank_SNES(0xC0, 0x0000, 0x38);
writeBank_SNES(0xC0, 0x0000, 0xd0);
// Read Extended Status Register (GSR and PSR)
writeBank_SNES(0xC0, 0x0000, 0x71);
// Page Buffer Swap
writeBank_SNES(0xC0, 0x0000, 0x72);
// Read Page Buffer
writeBank_SNES(0xC0, 0x0000, 0x75);
// Switch to read
dataIn();
controlIn_SNES();
// Read the mapping out of the first chip
char buffer[3];
for (int currByte = 0xFF00; currByte < 0xFF50; currByte += 10) {
for (int c = 0; c < 10; c++) {
itoa (readBank_SNES(0xC0, currByte + c), buffer, 16);
for (int i = 0; i < 2 - strlen(buffer); i++) {
print_Msg("0");
}
// Now print the significant bits
print_Msg(buffer);
}
println_Msg("");
}
display_Update();
// Switch to write
dataOut();
controlOut_SNES();
// Reset Flash
writeBank_SNES(0xC0, 0x5555L * 2, 0xaa);
writeBank_SNES(0xC0, 0x2AAAL * 2, 0x55);
writeBank_SNES(0xC0, 0x5555L * 2, 0xf0);
// Reset Flash
writeBank_SNES(0xE0, 0x5555L * 2, 0xaa);
writeBank_SNES(0xE0, 0x2AAAL * 2, 0x55);
writeBank_SNES(0xE0, 0x5555L * 2, 0xf0);
// Switch to read
dataIn();
controlIn_SNES();
}
// Read the current mapping from the hidden "page buffer"
void readMapping() {
// Switch to write
dataOut();
controlOut_SNES();
// Reset to defaults
writeBank_SNES(0xC0, 0x0000, 0x38);
writeBank_SNES(0xC0, 0x0000, 0xd0);
// Read Extended Status Register (GSR and PSR)
writeBank_SNES(0xC0, 0x0000, 0x71);
// Page Buffer Swap
writeBank_SNES(0xC0, 0x0000, 0x72);
// Read Page Buffer
writeBank_SNES(0xC0, 0x0000, 0x75);
// Switch to read
dataIn();
controlIn_SNES();
// Get name, add extension and convert to char array for sd lib
EEPROM_readAnything(10, foldern);
sprintf(fileName, "NP%d", foldern);
strcat(fileName, ".MAP");
sd.mkdir("NP", true);
sd.chdir("NP");
// write new folder number back to eeprom
foldern = foldern + 1;
EEPROM_writeAnything(10, foldern);
//open file on sd card
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
print_Error(F("SD Error"), true);
}
// Read the mapping info out of the 1st chip
for (unsigned long currByte = 0xFF00; currByte <= 0xFFFF; currByte++) {
myFile.write(readBank_SNES(0xC0, currByte));
}
// Switch to write
dataOut();
controlOut_SNES();
// Reset to defaults
writeBank_SNES(0xE0, 0x0000, 0x38);
writeBank_SNES(0xE0, 0x0000, 0xd0);
// Read Extended Status Register (GSR and PSR)
writeBank_SNES(0xE0, 0x0000, 0x71);
// Page Buffer Swap
writeBank_SNES(0xE0, 0x0000, 0x72);
// Read Page Buffer
writeBank_SNES(0xE0, 0x0000, 0x75);
// Switch to read
dataIn();
controlIn_SNES();
// Read the mapping info out of the 1st chip
for (unsigned long currByte = 0xFF00; currByte <= 0xFFFF; currByte++) {
myFile.write(readBank_SNES(0xE0, currByte));
}
// Close the file:
myFile.close();
// Switch to write
dataOut();
controlOut_SNES();
// Reset Flash
writeBank_SNES(0xC0, 0x5555L * 2, 0xaa);
writeBank_SNES(0xC0, 0x2AAAL * 2, 0x55);
writeBank_SNES(0xC0, 0x5555L * 2, 0xf0);
// Reset Flash
writeBank_SNES(0xE0, 0x5555L * 2, 0xaa);
writeBank_SNES(0xE0, 0x2AAAL * 2, 0x55);
writeBank_SNES(0xE0, 0x5555L * 2, 0xf0);
// Switch to read
dataIn();
controlIn_SNES();
// Signal end of process
print_Msg(F("Saved to NP/"));
println_Msg(fileName);
display_Update();
}
void eraseMapping(byte startBank) {
if (unlockHirom()) {
// Get ID
idFlash_SFM(startBank);
if (strcmp(flashid, "c2f3") == 0) {
resetFlash_SFM(startBank);
// Switch to write
dataOut();
controlOut_SNES();
// Prepare to erase/write Page Buffer
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0x77);
// Erase Page Buffer
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0xe0);
// Wait until complete
busyCheck_SFM(startBank);
// Switch to read
dataIn();
controlIn_SNES();
}
else {
print_Error(F("Error: Wrong Flash ID"), true);
}
}
else {
print_Error(F("Unlock failed"), true);
}
}
// Check if the current mapping is all 0xFF
byte blankcheckMapping_SFM() {
byte blank = 1;
// Switch to write
dataOut();
controlOut_SNES();
// Reset to defaults
writeBank_SNES(0xC0, 0x0000, 0x38);
writeBank_SNES(0xC0, 0x0000, 0xd0);
// Read Extended Status Register (GSR and PSR)
writeBank_SNES(0xC0, 0x0000, 0x71);
// Page Buffer Swap
writeBank_SNES(0xC0, 0x0000, 0x72);
// Read Page Buffer
writeBank_SNES(0xC0, 0x0000, 0x75);
// Switch to read
dataIn();
controlIn_SNES();
// Read the mapping info out of the 1st chip
for (unsigned long currByte = 0xFF00; currByte <= 0xFFFF; currByte++) {
if (readBank_SNES(0xC0, currByte) != 0xFF) {
blank = 0;
}
}
// Switch to write
dataOut();
controlOut_SNES();
// Reset to defaults
writeBank_SNES(0xE0, 0x0000, 0x38);
writeBank_SNES(0xE0, 0x0000, 0xd0);
// Read Extended Status Register (GSR and PSR)
writeBank_SNES(0xE0, 0x0000, 0x71);
// Page Buffer Swap
writeBank_SNES(0xE0, 0x0000, 0x72);
// Read Page Buffer
writeBank_SNES(0xE0, 0x0000, 0x75);
// Switch to read
dataIn();
controlIn_SNES();
// Read the mapping info out of the 1st chip
for (unsigned long currByte = 0xFF00; currByte <= 0xFFFF; currByte++) {
if (readBank_SNES(0xE0, currByte) != 0xFF) {
blank = 0;
}
}
// Switch to write
dataOut();
controlOut_SNES();
// Reset Flash
writeBank_SNES(0xC0, 0x5555L * 2, 0xaa);
writeBank_SNES(0xC0, 0x2AAAL * 2, 0x55);
writeBank_SNES(0xC0, 0x5555L * 2, 0xf0);
// Reset Flash
writeBank_SNES(0xE0, 0x5555L * 2, 0xaa);
writeBank_SNES(0xE0, 0x2AAAL * 2, 0x55);
writeBank_SNES(0xE0, 0x5555L * 2, 0xf0);
// Switch to read
dataIn();
controlIn_SNES();
return blank;
}
void writeMapping_SFM(byte startBank, uint32_t pos) {
if (unlockHirom()) {
// Get ID
idFlash_SFM(startBank);
if (strcmp(flashid, "c2f3") == 0) {
resetFlash_SFM(startBank);
// Switch to write
dataOut();
controlOut_SNES();
// 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);
// Write to Page Buffer
for (unsigned long currByte = 0xFF00; currByte < 0xFFFF; currByte += 128) {
// Prepare to erase/write Page Buffer
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0x77);
// Write Page Buffer Command
writeBank_SNES(startBank, 0x5555L * 2, 0xaa);
writeBank_SNES(startBank, 0x2AAAL * 2, 0x55);
writeBank_SNES(startBank, 0x5555L * 2, 0x99);
myFile.read(sdBuffer, 128);
for (byte c = 0; c < 128; c++) {
writeBank_SNES(startBank, currByte + c, sdBuffer[c]);
// Write last byte twice
if (c == 127) {
writeBank_SNES(startBank, currByte + c, sdBuffer[c]);
}
}
busyCheck_SFM(startBank);
}
// Close the file:
myFile.close();
println_Msg("");
}
else {
print_Error(F("Can't open file on SD"), false);
}
// Switch to read
dataIn();
controlIn_SNES();
}
else {
print_Error(F("Error: Wrong Flash ID"), true);
}
}
else {
print_Error(F("Unlock failed"), true);
}
}
/******************************************
SF Memory functions
*****************************************/
// Switch to HiRom All and unlock Write Protection
boolean unlockHirom() {
romType = 1;
print_Msg(F("Switch to HiRom..."));
display_Update();
if (send_SFM(0x04) == 0x2A) {
println_Msg(F("OK"));
display_Update();
// Unlock Write Protection
print_Msg(F("Enable Write..."));
display_Update();
send_SFM(0x02);
if (readBank_SNES(0, 0x2401) == 0x4) {
println_Msg(F("OK"));
display_Update();
return 1;
}
else {
println_Msg(F("failed"));
display_Update();
return 0;
}
}
else {
println_Msg(F("failed"));
display_Update();
return 0;
}
}
// Send a command to the MX15001 chip
byte send_SFM(byte command) {
// Switch to write
dataOut();
controlOut_SNES();
// Write command
writeBank_SNES(0, 0x2400, 0x09);
// Switch to read
dataIn();
controlIn_SNES();
// Read status
sfmReady = readBank_SNES(0, 0x2400);
// Switch to write
dataOut();
controlOut_SNES();
writeBank_SNES(0, 0x2401, 0x28);
writeBank_SNES(0, 0x2401, 0x84);
// NP_CMD_06h, send this only if above read has returned 7Dh, not if it's already returning 2Ah
if (sfmReady == 0x7D) {
writeBank_SNES(0, 0x2400, 0x06);
writeBank_SNES(0, 0x2400, 0x39);
}
// Write the command
writeBank_SNES(0, 0x2400, command);
// Switch to read
dataIn();
controlIn_SNES();
// Read status
sfmReady = readBank_SNES(0, 0x2400);
return sfmReady;
}
// This function will erase and program the NP cart from a 4MB file off the SD card
void write_SFM(int startBank, uint32_t pos) {
// Switch NP cart's mapping
if (unlockHirom()) {
// Get ID
idFlash_SFM(startBank);
if (strcmp(flashid, "c2f3") == 0) {
print_Msg(F("Flash ID: "));
println_Msg(flashid);
display_Update();
resetFlash_SFM(startBank);
delay(1000);
// Erase flash
print_Msg(F("Blankcheck..."));
display_Update();
if (blankcheck_SFM(startBank)) {
println_Msg(F("OK"));
display_Update();
}
else {
println_Msg(F("Nope"));
display_Clear();
print_Msg(F("Erasing..."));
display_Update();
eraseFlash_SFM(startBank);
resetFlash_SFM(startBank);
println_Msg(F("Done"));
print_Msg(F("Blankcheck..."));
display_Update();
if (blankcheck_SFM(startBank)) {
println_Msg(F("OK"));
display_Update();
}
else {
print_Error(F("Could not erase flash"), true);
}
}
// Write flash
writeFlash_SFM(startBank, pos);
// Reset flash
resetFlash_SFM(startBank);
// Checking for errors
print_Msg(F("Verifying..."));
display_Update();
writeErrors = verifyFlash_SFM(startBank, pos);
if (writeErrors == 0) {
println_Msg(F("OK"));
display_Update();
}
else {
print_Msg(F("Error: "));
print_Msg(writeErrors);
println_Msg(F(" bytes "));
print_Error(F("did not verify."), true);
}
}
else {
print_Error(F("Error: Wrong Flash ID"), true);
}
}
else {
print_Error(F("Unlock failed"), true);
}
}
/******************************************
GB Memory Cassette
******************************************/
/******************************************
Menu
*****************************************/
// GBM menu items
static const char gbmMenuItem1[] PROGMEM = "Read ID";
static const char gbmMenuItem2[] PROGMEM = "Read Flash";
static const char gbmMenuItem3[] PROGMEM = "Erase Flash";
static const char gbmMenuItem4[] PROGMEM = "Blankcheck";
static const char gbmMenuItem5[] PROGMEM = "Write Flash";
static const char gbmMenuItem6[] PROGMEM = "Read Mapping";
static const char gbmMenuItem7[] PROGMEM = "Write Mapping";
static const char* const menuOptionsGBM[] PROGMEM = {gbmMenuItem1, gbmMenuItem2, gbmMenuItem3, gbmMenuItem4, gbmMenuItem5, gbmMenuItem6, gbmMenuItem7};
void gbmMenu() {
// create menu with title and 7 options to choose from
unsigned char mainMenu;
// Copy menuOptions out of progmem
convertPgm(menuOptionsGBM, 7);
mainMenu = question_box("GB Memory Menu", menuOptions, 7, 0);
// wait for user choice to come back from the question box menu
switch (mainMenu)
{
// Read Flash ID
case 0:
// Clear screen
display_Clear();
readFlashID_GBM();
break;
// Read Flash
case 1:
// Clear screen
display_Clear();
// Print warning
println_Msg(F("Attention"));
println_Msg(F("Always power cycle"));
println_Msg(F("cartreader directly"));
println_Msg(F("before reading"));
println_Msg("");
println_Msg(F("Press Button"));
println_Msg(F("to continue"));
display_Update();
wait();
// Clear screen
display_Clear();
// Reset to root directory
sd.chdir("/");
// Enable access to ports 0120h
send_GBM(0x09);
// Map entire flashrom
send_GBM(0x04);
// Disable ports 0x0120...
send_GBM(0x08);
// Read 1MB rom
readROM_GBM(64);
break;
// Erase Flash
case 2:
// Clear screen
display_Clear();
// Print warning
println_Msg(F("Attention"));
println_Msg(F("This will erase your"));
println_Msg(F("NP Cartridge."));
println_Msg("");
println_Msg("");
println_Msg(F("Press Button"));
println_Msg(F("to continue"));
display_Update();
wait();
// Clear screen
display_Clear();
eraseFlash_GBM();
break;
// Blankcheck Flash
case 3:
// Clear screen
display_Clear();
if (blankcheckFlash_GBM()) {
println_Msg(F("OK"));
display_Update();
}
else {
println_Msg(F("ERROR"));
display_Update();
}
break;
// Write Flash
case 4:
// Clear screen
display_Clear();
filePath[0] = '\0';
sd.chdir("/");
// Launch file browser
fileBrowser("Select 1MB file");
display_Clear();
sprintf(filePath, "%s/%s", filePath, fileName);
// Write rom
writeFlash_GBM();
break;
// Read mapping
case 5:
// Clear screen
display_Clear();
// Reset to root directory
sd.chdir("/");
// Read mapping
readMapping_GBM();
break;
// Write mapping
case 6:
// Clear screen
display_Clear();
// Print warning
println_Msg(F("Attention"));
println_Msg(F("This will erase your"));
println_Msg(F("NP Cartridge's"));
println_Msg(F("mapping data"));
println_Msg("");
println_Msg(F("Press Button"));
println_Msg(F("to continue"));
display_Update();
wait();
// Reset to root directory
sd.chdir("/");
// Clear screen
display_Clear();
// Clear filepath
filePath[0] = '\0';
// Reset to root directory
sd.chdir("/");
// Launch file browser
fileBrowser("Select MAP file");
display_Clear();
sprintf(filePath, "%s/%s", filePath, fileName);
display_Update();
// Clear screen
display_Clear();
// Erase mapping
eraseMapping_GBM();
if (blankcheckMapping_GBM()) {
println_Msg(F("OK"));
display_Update();
}
else {
print_Error(F("Erasing failed"), false);
break;
}
// Write mapping
writeMapping_GBM();
break;
}
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
}
/******************************************
Setup
*****************************************/
void setup_GBM() {
// Set RST(PH0) to Input
DDRH &= ~(1 << 0);
// Activate Internal Pullup Resistors
PORTH |= (1 << 0);
// Set Address Pins to Output
//A0-A7
DDRF = 0xFF;
//A8-A15
DDRK = 0xFF;
// Set Control Pins to Output RST(PH0) CS(PH3) WR(PH5) RD(PH6)
DDRH |= (1 << 3) | (1 << 5) | (1 << 6);
// Output a high signal on all pins, pins are active low therefore everything is disabled now
PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set Data Pins (D0-D7) to Input
DDRC = 0x00;
delay(400);
// Check for Nintendo Power GB Memory cart
byte timeout = 0;
// First byte of NP register is always 0x21
while (readByte_GBM(0x120) != 0x21) {
// Enable ports 0x120h (F2)
send_GBM(0x09);
__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""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");
timeout++;
if (timeout > 10) {
println_Msg(F("Error: Time Out"));
print_Error(F("Please power cycle"), true);
}
}
}
/**********************
LOW LEVEL
**********************/
// Read one word out of the cartridge
byte readByte_GBM(word myAddress) {
// Set data pins to Input
DDRC = 0x0;
PORTF = myAddress & 0xFF;
PORTK = (myAddress >> 8) & 0xFF;
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Switch CS(PH3) and RD(PH6) to LOW
PORTH &= ~(1 << 3);
PORTH &= ~(1 << 6);
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Read
byte tempByte = PINC;
// Switch CS(PH3) and RD(PH6) to HIGH
PORTH |= (1 << 6);
PORTH |= (1 << 3);
return tempByte;
}
// Write one word to data pins of the cartridge
void writeByte_GBM(word myAddress, byte myData) {
// Set data pins to Output
DDRC = 0xFF;
PORTF = myAddress & 0xFF;
PORTK = (myAddress >> 8) & 0xFF;
PORTC = myData;
// Pull CS(PH3) and write(PH5) low
PORTH &= ~(1 << 3);
PORTH &= ~(1 << 5);
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Pull CS(PH3) and write(PH5) high
PORTH |= (1 << 5);
PORTH |= (1 << 3);
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Set data pins to Input (or read errors??!)
DDRC = 0x0;
}
/**********************
HELPER FUNCTIONS
**********************/
void printSdBuffer(word startByte, word numBytes) {
for (int currByte = 0; currByte < numBytes; currByte += 10) {
for (byte c = 0; c < 10; c++) {
// Convert to char array so we don't lose leading zeros
char currByteStr[2];
sprintf(currByteStr, "%02X", sdBuffer[startByte + currByte + c]);
print_Msg(currByteStr);
}
// Add a new line every 10 bytes
println_Msg("");
}
display_Update();
}
void readROM_GBM(word numBanks) {
println_Msg(F("Reading Rom..."));
display_Update();
// Get name, add extension and convert to char array for sd lib
EEPROM_readAnything(10, foldern);
sprintf(fileName, "GBM%d", foldern);
strcat(fileName, ".bin");
sd.mkdir("NP", true);
sd.chdir("NP");
// write new folder number back to eeprom
foldern = foldern + 1;
EEPROM_writeAnything(10, foldern);
// Open file on sd card
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
print_Error(F("Can't create file on SD"), true);
}
else {
// Read rom
word currAddress = 0;
for (word currBank = 1; currBank < numBanks; currBank++) {
// Set rom bank
writeByte_GBM(0x2100, currBank);
// Switch bank start address
if (currBank > 1) {
currAddress = 0x4000;
}
for (; currAddress < 0x7FFF; currAddress += 512) {
for (int currByte = 0; currByte < 512; currByte++) {
sdBuffer[currByte] = readByte_GBM(currAddress + currByte);
}
myFile.write(sdBuffer, 512);
}
}
// Close the file:
myFile.close();
// Signal end of process
print_Msg(F("Saved to NP/"));
println_Msg(fileName);
display_Update();
}
}
/**********************
GB Memory Functions
**********************/
void send_GBM(byte myCommand) {
switch (myCommand) {
case 0x01:
//CMD_01h -> ???
writeByte_GBM(0x0120, 0x01);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x02:
//CMD_02h -> Write enable Step 2
writeByte_GBM(0x0120, 0x02);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x03:
//CMD_03h -> Undo write Step 2
writeByte_GBM(0x0120, 0x03);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x04:
//CMD_04h -> Map entire flashrom (MBC4 mode)
writeByte_GBM(0x0120, 0x04);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x05:
//CMD_05h -> Map menu (MBC5 mode)
writeByte_GBM(0x0120, 0x05);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x08:
//CMD_08h -> disable writes/reads to/from special Nintendo Power registers (those at 0120h..013Fh)
writeByte_GBM(0x0120, 0x08);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x09:
//CMD_09h Wakeup -> re-enable access to ports 0120h..013Fh
writeByte_GBM(0x0120, 0x09);
writeByte_GBM(0x0121, 0xAA);
writeByte_GBM(0x0122, 0x55);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x0A:
//CMD_0Ah -> Write enable Step 1
writeByte_GBM(0x0120, 0x0A);
writeByte_GBM(0x0125, 0x62);
writeByte_GBM(0x0126, 0x04);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x10:
//CMD_10h -> disable writes to normal MBC registers (such like 2100h)
writeByte_GBM(0x0120, 0x10);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x11:
//CMD_11h -> re-enable access to MBC registers like 0x2100
writeByte_GBM(0x0120, 0x11);
writeByte_GBM(0x013F, 0xA5);
break;
default:
print_Error(F("Unknown Command"), true);
break;
}
}
void send_GBM(byte myCommand, word myAddress, byte myData) {
byte myAddrLow = myAddress & 0xFF;
byte myAddrHigh = (myAddress >> 8) & 0xFF;
switch (myCommand) {
case 0x0F:
// CMD_0Fh -> Write address/byte to flash
writeByte_GBM(0x0120, 0x0F);
writeByte_GBM(0x0125, myAddrHigh);
writeByte_GBM(0x0126, myAddrLow);
writeByte_GBM(0x0127, myData);
writeByte_GBM(0x013F, 0xA5);
break;
default:
print_Error(F("Unknown Command"), true);
break;
}
}
void switchGame_GBM(byte myData) {
// Enable ports 0x0120 (F2)
send_GBM(0x09);
//CMD_C0h -> map selected game without reset
writeByte_GBM(0x0120, 0xC0 & myData);
writeByte_GBM(0x013F, 0xA5);
}
void resetFlash_GBM() {
// Enable ports 0x0120 (F2)
send_GBM(0x09);
// Send reset command
writeByte_GBM(0x2100, 0x01);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0xF0);
delay(100);
}
boolean readFlashID_GBM() {
// Enable ports 0x0120 (F2)
send_GBM(0x09);
writeByte_GBM(0x2100, 0x01);
// Read ID command
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x90);
// Read the two id bytes into a string
sprintf(flashid, "%02X%02X", readByte_GBM(0), readByte_GBM(1));
if (strcmp(flashid, "C289") == 0) {
print_Msg(F("Flash ID: "));
println_Msg(flashid);
display_Update();
resetFlash_GBM();
return 1;
}
else {
print_Msg(F("Flash ID: "));
println_Msg(flashid);
print_Error(F("Unknown Flash ID"), true);
resetFlash_GBM();
return 0;
}
}
void eraseFlash_GBM() {
println_Msg(F("Erasing..."));
display_Update();
//enable access to ports 0120h
send_GBM(0x09);
// Enable write
send_GBM(0x0A);
send_GBM(0x2);
// Unprotect sector 0
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x60);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x40);
// Wait for unprotect to complete
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Send erase command
send_GBM(0x0F, 0x5555, 0xaa);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x80);
send_GBM(0x0F, 0x5555, 0xaa);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x10);
// Wait for erase to complete
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Reset flashrom
resetFlash_GBM();
}
boolean blankcheckFlash_GBM() {
print_Msg(F("Blankcheck..."));
display_Update();
//enable access to ports 0120h (F2)
send_GBM(0x09);
// Map entire flashrom
send_GBM(0x04);
// Disable ports 0x0120...
send_GBM(0x08);
// Read rom
word currAddress = 0;
for (byte currBank = 1; currBank < 64; currBank++) {
// Set rom bank
writeByte_GBM(0x2100, currBank);
// Switch bank start address
if (currBank > 1) {
currAddress = 0x4000;
}
for (; currAddress < 0x7FFF; currAddress++) {
if (readByte_GBM(currAddress) != 0xFF) {
return 0;
}
}
}
return 1;
}
void writeFlash_GBM() {
print_Msg(F("Writing..."));
display_Update();
// Open file on sd card
if (myFile.open(filePath, O_READ)) {
// Get rom size from file
fileSize = myFile.fileSize();
if ((fileSize / 0x4000) > 64) {
print_Error(F("File is too big."), true);
}
// Enable access to ports 0120h
send_GBM(0x09);
// Enable write
send_GBM(0x0A);
send_GBM(0x2);
// Map entire flash rom
send_GBM(0x4);
// Set bank for unprotect command, writes to 0x5555 need odd bank number
writeByte_GBM(0x2100, 0x1);
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
// Unprotect sector 0
writeByte_GBM(0x5555, 0xAA);
writeByte_GBM(0x2AAA, 0x55);
writeByte_GBM(0x5555, 0x60);
writeByte_GBM(0x5555, 0xAA);
writeByte_GBM(0x2AAA, 0x55);
writeByte_GBM(0x5555, 0x40);
// Check if flashrom is ready for writing or busy
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// first bank: 0x0000-0x7FFF,
word currAddress = 0x0;
// Write 63 banks
for (byte currBank = 0x1; currBank < (fileSize / 0x4000); currBank++) {
// Blink led
PORTB ^= (1 << 4);
// all following banks: 0x4000-0x7FFF
if (currBank > 1) {
currAddress = 0x4000;
}
// Write single bank in 128 byte steps
for (; currAddress < 0x7FFF; currAddress += 128) {
// Fill SD buffer
myFile.read(sdBuffer, 128);
// Enable access to ports 0x120 and 0x2100
send_GBM(0x09);
send_GBM(0x11);
// Set bank
writeByte_GBM(0x2100, 0x1);
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
// Write flash buffer command
writeByte_GBM(0x5555, 0xAA);
writeByte_GBM(0x2AAA, 0x55);
writeByte_GBM(0x5555, 0xA0);
// Wait until flashrom is ready again
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Enable access to ports 0x120 and 0x2100
send_GBM(0x09);
send_GBM(0x11);
// Set bank
writeByte_GBM(0x2100, currBank);
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
// Fill flash buffer
for (word currByte = 0; currByte < 128; currByte++) {
writeByte_GBM(currAddress + currByte, sdBuffer[currByte]);
}
// Execute write
writeByte_GBM(currAddress + 127, 0xFF);
// Wait for write to complete
while ((readByte_GBM(currAddress) & 0x80) != 0x80) {}
}
}
// Close the file:
myFile.close();
println_Msg(F("Done"));
}
else {
print_Error(F("Can't open file"), false);
}
}
void readMapping_GBM() {
// Enable ports 0x0120
send_GBM(0x09);
// Set WE and WP
send_GBM(0x0A);
send_GBM(0x2);
// Enable hidden mapping area
writeByte_GBM(0x2100, 0x01);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x77);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x77);
// Read mapping
println_Msg(F("Reading Mapping..."));
display_Update();
// Get name, add extension and convert to char array for sd lib
EEPROM_readAnything(10, foldern);
sprintf(fileName, "GBM%d", foldern);
strcat(fileName, ".map");
sd.mkdir("NP", true);
sd.chdir("NP");
// write new folder number back to eeprom
foldern = foldern + 1;
EEPROM_writeAnything(10, foldern);
// Open file on sd card
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
print_Error(F("Can't create file on SD"), true);
}
else {
for (byte currByte = 0; currByte < 128; currByte++) {
sdBuffer[currByte] = readByte_GBM(currByte);
}
myFile.write(sdBuffer, 128);
// Close the file:
myFile.close();
// Signal end of process
printSdBuffer(0, 20);
printSdBuffer(102, 20);
println_Msg("");
print_Msg(F("Saved to NP/"));
println_Msg(fileName);
display_Update();
}
// Reset flash to leave hidden mapping area
resetFlash_GBM();
}
void eraseMapping_GBM() {
println_Msg(F("Erasing..."));
display_Update();
//enable access to ports 0120h
send_GBM(0x09);
// Enable write
send_GBM(0x0A);
send_GBM(0x2);
// Unprotect sector 0
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x60);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x40);
// Wait for unprotect to complete
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Send erase command
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x60);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x04);
// Wait for erase to complete
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Reset flashrom
resetFlash_GBM();
}
boolean blankcheckMapping_GBM() {
print_Msg(F("Blankcheck..."));
display_Update();
// Enable ports 0x0120
send_GBM(0x09);
// Set WE and WP
send_GBM(0x0A);
send_GBM(0x2);
// Enable hidden mapping area
writeByte_GBM(0x2100, 0x01);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x77);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0x77);
// Disable ports 0x0120...
send_GBM(0x08);
// Read rom
for (byte currByte = 0; currByte < 128; currByte++) {
if (readByte_GBM(currByte) != 0xFF) {
return 0;
}
}
return 1;
}
void writeMapping_GBM() {
print_Msg(F("Writing..."));
display_Update();
// Open file on sd card
if (myFile.open(filePath, O_READ)) {
// Get map file size and check if it exceeds 128KByte
if (myFile.fileSize() > 0x80) {
print_Error(F("File is too big."), true);
}
// Enable access to ports 0120h
send_GBM(0x09);
// Enable write
send_GBM(0x0A);
send_GBM(0x2);
// Map entire flash rom
send_GBM(0x4);
// Set bank, writes to 0x5555 need odd bank number
writeByte_GBM(0x2100, 0x1);
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
// Unlock write to map area
writeByte_GBM(0x5555, 0xAA);
writeByte_GBM(0x2AAA, 0x55);
writeByte_GBM(0x5555, 0x60);
writeByte_GBM(0x5555, 0xAA);
writeByte_GBM(0x2AAA, 0x55);
writeByte_GBM(0x5555, 0xE0);
// Check if flashrom is ready for writing or busy
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Fill SD buffer
myFile.read(sdBuffer, 128);
// Enable access to ports 0x120 and 0x2100
send_GBM(0x09);
send_GBM(0x11);
// Set bank
writeByte_GBM(0x2100, 0x1);
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
// Write flash buffer command
writeByte_GBM(0x5555, 0xAA);
writeByte_GBM(0x2AAA, 0x55);
writeByte_GBM(0x5555, 0xA0);
// Wait until flashrom is ready again
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Enable access to ports 0x120 and 0x2100
send_GBM(0x09);
send_GBM(0x11);
// Set bank
writeByte_GBM(0x2100, 0);
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
// Fill flash buffer
for (word currByte = 0; currByte < 128; currByte++) {
// Blink led
PORTB ^= (1 << 4);
writeByte_GBM(currByte, sdBuffer[currByte]);
}
// Execute write
writeByte_GBM(127, 0xFF);
// Close the file:
myFile.close();
println_Msg(F("Done"));
}
else {
print_Error(F("Can't open file"), false);
}
}
//******************************************
// End of File
//******************************************
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