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V29A: Write first 0x7FFF bytes of GB Memory cart

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Don't understand how to switch banks right now or more precise when to switch banks without killing off the buffered write sequence.
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sanni 2017-10-11 20:57:34 +02:00 committed by GitHub
parent 4bb76e01e2
commit 79346e3a51
2 changed files with 257 additions and 172 deletions
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6
Cart_Reader/Cart_Reader.ino
View File

@ -2,8 +2,8 @@
Cartridge Reader for Arduino Mega2560 Cartridge Reader for Arduino Mega2560
Author: sanni Author: sanni
Date: 2017-10-07 Date: 2017-10-11
Version: V28I Version: V29A
SD lib: https://github.com/greiman/SdFat SD lib: https://github.com/greiman/SdFat
LCD lib: https://github.com/adafruit/Adafruit_SSD1306 LCD lib: https://github.com/adafruit/Adafruit_SSD1306
@ -34,7 +34,7 @@
YamaArashi - GBA flashrom bank switch command YamaArashi - GBA flashrom bank switch command
**********************************************************************************/ **********************************************************************************/
char ver[5] = "V28I"; char ver[5] = "V29A";
/****************************************** /******************************************
Define Output Define Output

415
Cart_Reader/NP.ino
View File

@ -1464,60 +1464,84 @@ void write_SFM(int startBank, uint32_t pos) {
Menu Menu
*****************************************/ *****************************************/
// GBM menu items // GBM menu items
static const char gbmMenuItem1[] PROGMEM = "Read Flash"; static const char gbmMenuItem1[] PROGMEM = "Read ID";
static const char gbmMenuItem2[] PROGMEM = "Read Mapping"; static const char gbmMenuItem2[] PROGMEM = "Read Flash";
static const char gbmMenuItem3[] PROGMEM = "Write Flash"; static const char gbmMenuItem3[] PROGMEM = "Erase Flash";
static const char gbmMenuItem4[] PROGMEM = "Write Mapping"; static const char gbmMenuItem4[] PROGMEM = "Blankcheck";
static const char* const menuOptionsGBM[] PROGMEM = {gbmMenuItem1, gbmMenuItem2, gbmMenuItem3, gbmMenuItem4}; 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() { void gbmMenu() {
// create menu with title and 4 options to choose from // create menu with title and 7 options to choose from
unsigned char mainMenu; unsigned char mainMenu;
// Copy menuOptions out of progmem // Copy menuOptions out of progmem
convertPgm(menuOptionsGBM, 2); convertPgm(menuOptionsGBM, 6);
mainMenu = question_box("GB Memory Menu", menuOptions, 2, 0); mainMenu = question_box("GB Memory Menu", menuOptions, 6, 0);
// wait for user choice to come back from the question box menu // wait for user choice to come back from the question box menu
switch (mainMenu) switch (mainMenu)
{ {
// Read Flash // Read Flash ID
case 0: case 0:
// Clear screen
display_Clear();
readFlashID_GBM();
break;
// Read Flash
case 1:
// Clear screen // Clear screen
display_Clear(); display_Clear();
// Reset to root directory // Reset to root directory
sd.chdir("/"); sd.chdir("/");
// Read flash // Read flash
readFlash_GBM(); // Map entire flashrom
send_GBM(0x04);
// Disable ports 0x0120...
send_GBM(0x08);
// Read 1MB rom
readROM_GBM(64);
break; break;
// Read mapping
case 1:
// Clear screen
display_Clear();
// Reset to root directory // Erase Flash
sd.chdir("/");
// Read mapping
readMapping_GBM();
break;
// Write Flash
case 2: case 2:
// Clear screen // Clear screen
display_Clear(); display_Clear();
// Print warning // Print warning
println_Msg(F("Attention")); println_Msg(F("Attention"));
println_Msg(F("This will erase your")); println_Msg(F("This will erase your"));
println_Msg(F("NP Cartridge.")); println_Msg(F("NP Cartridge."));
println_Msg(""); println_Msg("");
println_Msg("");
println_Msg(F("Press Button")); println_Msg(F("Press Button"));
println_Msg(F("to continue")); println_Msg(F("to continue"));
display_Update(); display_Update();
wait(); 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 // Clear screen
display_Clear(); display_Clear();
@ -1529,11 +1553,23 @@ void gbmMenu() {
sprintf(filePath, "%s/%s", filePath, fileName); sprintf(filePath, "%s/%s", filePath, fileName);
// Write rom // Write rom
writeRom_GBM(); writeFlash_GBM();
break;
// Read mapping
case 5:
// Clear screen
display_Clear();
// Reset to root directory
sd.chdir("/");
// Read mapping
readMapping_GBM();
break; break;
// Write mapping // Write mapping
case 3: case 6:
// Clear screen // Clear screen
display_Clear(); display_Clear();
@ -1595,6 +1631,11 @@ void gbmMenu() {
Setup Setup
*****************************************/ *****************************************/
void setup_GBM() { void setup_GBM() {
// Set RST(PH0) to Input
DDRH &= ~(1 << 0);
// Activate Internal Pullup Resistors
PORTH |= (1 << 0);
// Set Address Pins to Output // Set Address Pins to Output
//A0-A7 //A0-A7
DDRF = 0xFF; DDRF = 0xFF;
@ -1602,12 +1643,29 @@ void setup_GBM() {
DDRK = 0xFF; DDRK = 0xFF;
// Set Control Pins to Output RST(PH0) CS(PH3) WR(PH5) RD(PH6) // Set Control Pins to Output RST(PH0) CS(PH3) WR(PH5) RD(PH6)
DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6); DDRH |= (1 << 3) | (1 << 5) | (1 << 6);
// Output a high signal on all pins, pins are active low therefore everything is disabled now // 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); PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
// Set Data Pins (D0-D7) to Input // Set Data Pins (D0-D7) to Input
DDRC = 0x00; 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);
}
}
} }
/********************** /**********************
@ -1616,27 +1674,24 @@ void setup_GBM() {
// Read one word out of the cartridge // Read one word out of the cartridge
byte readByte_GBM(word myAddress) { byte readByte_GBM(word myAddress) {
// Set data pins to Input // Set data pins to Input
DDRC = 0x00; DDRC = 0x0;
PORTF = myAddress & 0xFF; PORTF = myAddress & 0xFF;
PORTK = (myAddress >> 8) & 0xFF; PORTK = (myAddress >> 8) & 0xFF;
// Wait until all is stable __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
__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 read(PH6) low // Switch CS(PH3) and RD(PH6) to LOW
PORTH &= ~(1 << 3);
PORTH &= ~(1 << 6); PORTH &= ~(1 << 6);
// Wait ~310ns __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Read // Read
byte tempByte = PINC; byte tempByte = PINC;
// Pull read(PH6) high // Switch CS(PH3) and RD(PH6) to HIGH
PORTH |= (1 << 6); PORTH |= (1 << 6);
PORTH |= (1 << 3);
// Wait
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
return tempByte; return tempByte;
} }
@ -1649,23 +1704,20 @@ void writeByte_GBM(word myAddress, byte myData) {
PORTK = (myAddress >> 8) & 0xFF; PORTK = (myAddress >> 8) & 0xFF;
PORTC = myData; PORTC = myData;
// Wait until all is stable // Pull CS(PH3) and write(PH5) low
__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"); PORTH &= ~(1 << 3);
// Pull write(PH5) low
PORTH &= ~(1 << 5); PORTH &= ~(1 << 5);
// Wait ~310ns __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Pull write(PH5) high // Pull CS(PH3) and write(PH5) high
PORTH |= (1 << 5); PORTH |= (1 << 5);
PORTH |= (1 << 3);
// Wait ~125ns __asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Set data pins to Input // Set data pins to Input (or read errors??!)
DDRC = 0x00; DDRC = 0x0;
} }
/********************** /**********************
@ -1739,6 +1791,12 @@ void readROM_GBM(word numBanks) {
**********************/ **********************/
void send_GBM(byte myCommand) { void send_GBM(byte myCommand) {
switch (myCommand) { switch (myCommand) {
case 0x01:
//CMD_01h -> ???
writeByte_GBM(0x0120, 0x01);
writeByte_GBM(0x013F, 0xA5);
break;
case 0x02: case 0x02:
//CMD_02h -> Write enable Step 2 //CMD_02h -> Write enable Step 2
writeByte_GBM(0x0120, 0x02); writeByte_GBM(0x0120, 0x02);
@ -1803,95 +1861,92 @@ void send_GBM(byte myCommand) {
} }
} }
// CMD_0Fh -> Write address/byte to flash void send_GBM(byte myCommand, word myAddress, byte myData) {
void send_Flash(word myAddress, byte myData) {
byte myAddrLow = myAddress & 0xFF; byte myAddrLow = myAddress & 0xFF;
byte myAddrHigh = (myAddress >> 8) & 0xFF; byte myAddrHigh = (myAddress >> 8) & 0xFF;
// Bank must be 0x01 for writes to 0x5555
switch (myCommand) {
case 0x0F:
// CMD_0Fh -> Write address/byte to flash
writeByte_GBM(0x0120, 0x0F); writeByte_GBM(0x0120, 0x0F);
writeByte_GBM(0x0125, myAddrHigh); writeByte_GBM(0x0125, myAddrHigh);
writeByte_GBM(0x0126, myAddrLow); writeByte_GBM(0x0126, myAddrLow);
writeByte_GBM(0x0127, myData); writeByte_GBM(0x0127, myData);
writeByte_GBM(0x013F, 0xA5); writeByte_GBM(0x013F, 0xA5);
} break;
// Enable NP ports 0x0120... default:
boolean wakeup_GBM() { print_Error(F("Unknown Command"), true);
byte timeout = 0; break;
// First byte of NP register is always 0x21
while (readByte_GBM(0x0120) != 0x21) {
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);
return 0;
}
} }
} }
void switchGame_GBM(byte myData) { void switchGame_GBM(byte myData) {
// Enable ports 0x0120... // Enable ports 0x0120 (F2)
wakeup_GBM(); send_GBM(0x09);
//CMD_C0h -> map selected game without reset //CMD_C0h -> map selected game without reset
writeByte_GBM(0x0120, 0xC0 & myData); writeByte_GBM(0x0120, 0xC0 & myData);
writeByte_GBM(0x013F, 0xA5); writeByte_GBM(0x013F, 0xA5);
} }
void enableWrite_GBM() {
send_GBM(0x0A);
send_GBM(0x02);
}
void resetFlash_GBM() { void resetFlash_GBM() {
// Enable ports 0x0120... // Enable ports 0x0120 (F2)
wakeup_GBM(); send_GBM(0x09);
// Send reset command // Send reset command
writeByte_GBM(0x2100, 0x01); writeByte_GBM(0x2100, 0x01);
send_Flash(0x5555, 0xAA); send_GBM(0x0F, 0x5555, 0xAA);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x5555, 0xF0); send_GBM(0x0F, 0x5555, 0xF0);
delay(100); delay(100);
} }
boolean readFlashID_GBM() { boolean readFlashID_GBM() {
// Enable ports 0x0120 (F2)
send_GBM(0x09);
writeByte_GBM(0x2100, 0x01); writeByte_GBM(0x2100, 0x01);
// Read ID command // Read ID command
send_Flash(0x5555, 0xAA); send_GBM(0x0F, 0x5555, 0xAA);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x5555, 0x90); send_GBM(0x0F, 0x5555, 0x90);
// Read the two id bytes into a string // Read the two id bytes into a string
sprintf(flashid, "%02X%02X", readByte_GBM(0), readByte_GBM(1)); sprintf(flashid, "%02X%02X", readByte_GBM(0), readByte_GBM(1));
if (strcmp(flashid, "C289") == 0) { if (strcmp(flashid, "C289") == 0) {
print_Msg(F("Flash ID: "));
println_Msg(flashid);
display_Update();
resetFlash_GBM();
return 1; return 1;
} }
else { else {
print_Msg(F("Flash ID: "));
println_Msg(flashid); println_Msg(flashid);
print_Error(F("Unknown Flash ID"), true); print_Error(F("Unknown Flash ID"), true);
resetFlash_GBM();
return 0; return 0;
} }
} }
void readMapping_GBM() { void readMapping_GBM() {
// Enable ports 0x0120... // Enable ports 0x0120 (F2)
wakeup_GBM(); send_GBM(0x09);
// Set WE and WP // Set WE and WP (F4)
enableWrite_GBM(); send_GBM(0x0A);
send_GBM(0x1);
send_GBM(0x2);
// Enable hidden mapping area // Enable hidden mapping area
writeByte_GBM(0x2100, 0x01); writeByte_GBM(0x2100, 0x01);
send_Flash(0x5555, 0xAA); send_GBM(0x0F, 0x5555, 0xAA);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x5555, 0x77); send_GBM(0x0F, 0x5555, 0x77);
send_Flash(0x5555, 0xAA); send_GBM(0x0F, 0x5555, 0xAA);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x5555, 0x77); send_GBM(0x0F, 0x5555, 0x77);
// Read mapping // Read mapping
println_Msg(F("Reading Mapping...")); println_Msg(F("Reading Mapping..."));
@ -1933,62 +1988,52 @@ void readMapping_GBM() {
resetFlash_GBM(); resetFlash_GBM();
} }
void readFlash_GBM() {
// Enable ports 0x0120...
wakeup_GBM();
// Check flashid
if (readFlashID_GBM()) {
// Reset flashrom to leave flashID area and switch to output
resetFlash_GBM();
// Map entire flashrom
send_GBM(0x04);
// Disable ports 0x0120...
send_GBM(0x08);
// Read 1MB rom
readROM_GBM(64);
}
else {
print_Error(F("Flash ID error"), true);
}
}
void eraseFlash_GBM() { void eraseFlash_GBM() {
// Enable ports 0x0120... println_Msg(F("Erasing..."));
wakeup_GBM(); display_Update();
// Set WE and WP //enable access to ports 0120h (F2)
enableWrite_GBM(); send_GBM(0x09);
// Enable write (F4)
send_GBM(0x0A);
send_GBM(0x1);
send_GBM(0x2);
// Unprotect sector 0 // Unprotect sector 0
writeByte_GBM(0x2100, 0x01); send_GBM(0x0F, 0x5555, 0xAA);
send_Flash(0x5555, 0xAA); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x5555, 0x60);
send_Flash(0x5555, 0x60); send_GBM(0x0F, 0x5555, 0xAA);
send_Flash(0x5555, 0xAA); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x5555, 0x40);
writeByte_GBM(0x2100, 0x0);
send_Flash(0x0000, 0x40); // Wait for unprotect to complete
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Send erase command // Send erase command
writeByte_GBM(0x2100, 0x01); send_GBM(0x0F, 0x5555, 0xaa);
send_Flash(0x5555, 0xaa); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x5555, 0x80);
send_Flash(0x5555, 0x80); send_GBM(0x0F, 0x5555, 0xaa);
send_Flash(0x5555, 0xaa); send_GBM(0x0F, 0x2AAA, 0x55);
send_Flash(0x2AAA, 0x55); send_GBM(0x0F, 0x5555, 0x10);
send_Flash(0x5555, 0x10);
// Wait for erase to complete // Wait for erase to complete
while ((readByte_GBM(0) & 0x80) != 0x80) { while ((readByte_GBM(0) & 0x80) != 0x80) {}
}
// Reset flashrom
resetFlash_GBM();
} }
boolean blankcheckFlash_GBM() { boolean blankcheckFlash_GBM() {
// Reset flashrom print_Msg(F("Blankcheck..."));
resetFlash_GBM(); display_Update();
//enable access to ports 0120h (F2)
send_GBM(0x09);
// Map entire flashrom // Map entire flashrom
//send_GBM(0x04); send_GBM(0x04);
// Disable ports 0x0120... // Disable ports 0x0120...
send_GBM(0x08); send_GBM(0x08);
@ -2014,50 +2059,90 @@ boolean blankcheckFlash_GBM() {
} }
void writeFlash_GBM() { void writeFlash_GBM() {
print_Msg(F("Writing..."));
display_Update();
// Open file on sd card // Open file on sd card
if (myFile.open(filePath, O_READ)) { if (myFile.open(filePath, O_READ)) {
// Get rom size from file // Get rom size from file
fileSize = myFile.fileSize(); fileSize = myFile.fileSize();
if ((fileSize / 0x4000) > 64) {
for (unsigned long currBuffer = 0; currBuffer < fileSize; currBuffer += 128) { print_Error(F("File is too big."), true);
// Fill SD buffer
myFile.read(sdBuffer, 128);
} }
//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 later on, writes to 0x5555 need odd bank number
writeByte_GBM(0x2100, 0x1);
// disable ports 0x2100 and 0x120 or else 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;
// only write the first bank for now as bank switching doesn't work yet
for (word currBank = 0x1; currBank < 0x2; currBank++) {
// Blink Led
PORTB ^= (1 << 4);
// all following banks: 0x4000-0x7FFF
if (currBank > 1) {
currAddress = 0x4000;
}
// write one bank
for (; currAddress < 0x7FFF; currAddress += 128) {
// Fill SD buffer
myFile.read(sdBuffer, 128);
// Write flash buffer command
writeByte_GBM(0x5555, 0xAA);
writeByte_GBM(0x2AAA, 0x55);
writeByte_GBM(0x5555, 0xA0);
// 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(0) & 0x80) != 0x80) {}
}
}
// Close the file: // Close the file:
myFile.close(); myFile.close();
// Reset flashrom
resetFlash_GBM();
println_Msg(F("Done"));
} }
else { else {
print_Error(F("Can't open file"), false); print_Error(F("Can't open file"), false);
} }
} }
void writeRom_GBM() {
// Enable ports 0x0120...
wakeup_GBM();
// Check flashid
if (readFlashID_GBM()) {
// Reset flashrom to leave flashID area and switch to output
resetFlash_GBM();
// Erase flash
print_Msg(F("Erasing..."));
display_Update();
eraseFlash_GBM();
if (blankcheckFlash_GBM()) {
println_Msg(F("Ok"));
display_Update();
writeFlash_GBM();
}
else {
print_Error(F("Erase failed"), true);
}
}
else {
print_Error(F("Flash ID error"), true);
}
}
void eraseMapping_GBM() { void eraseMapping_GBM() {
} }