Mirrors/cartreader
2
0
Fork 0
mirror of https://github.com/sanni/cartreader.git synced 2024-11-13 08:25:05 +01:00
Code Issues Projects Releases Wiki Activity

V29C: Fixed writing Nintendo Power GB Memory cartridges (DMG-MMSA-JPN)

Browse Source
This commit is contained in:
sanni 2017-10-12 23:51:47 +02:00 committed by GitHub
parent b99b86f2f0
commit 2213f8483f
2 changed files with 50 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Cart_Reader/Cart_Reader.ino
View File

@ -2,8 +2,8 @@
Cartridge Reader for Arduino Mega2560
Author: sanni
Date: 2017-10-11
Version: V29B
Date: 2017-10-12
Version: V29C
SD lib: https://github.com/greiman/SdFat
LCD lib: https://github.com/adafruit/Adafruit_SSD1306
@ -32,9 +32,10 @@
insidegadgets - GBCartRead
RobinTheHood - GameboyAdvanceRomDumper
YamaArashi - GBA flashrom bank switch command
infinest - help with GM Memory cart
**********************************************************************************/
char ver[5] = "V29B";
char ver[5] = "V29C";
/******************************************
Define Output

95
Cart_Reader/NP.ino
View File

@ -1944,12 +1944,11 @@ boolean readFlashID_GBM() {
}
void readMapping_GBM() {
// Enable ports 0x0120 (F2)
// Enable ports 0x0120
send_GBM(0x09);
// Set WE and WP (F4)
// Set WE and WP
send_GBM(0x0A);
send_GBM(0x1);
send_GBM(0x2);
// Enable hidden mapping area
@ -2005,11 +2004,10 @@ void eraseFlash_GBM() {
println_Msg(F("Erasing..."));
display_Update();
//enable access to ports 0120h (F2)
//enable access to ports 0120h
send_GBM(0x09);
// Enable write (F4)
// Enable write
send_GBM(0x0A);
send_GBM(0x1);
send_GBM(0x2);
// Unprotect sector 0
@ -2092,10 +2090,10 @@ void writeFlash_GBM() {
// Map entire flash rom
send_GBM(0x4);
// Set bank for unprotect later on, writes to 0x5555 need odd bank number
// Set bank for unprotect command, writes to 0x5555 need odd bank number
writeByte_GBM(0x2100, 0x1);
// Disable ports 0x2100 and 0x120 or else addresses will not be writable
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
@ -2110,64 +2108,63 @@ void writeFlash_GBM() {
// Check if flashrom is ready for writing or busy
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// Blink led
PORTB ^= (1 << 4);
// first bank: 0x0000-0x7FFF,
word currAddress = 0x0;
// Write first bank
for (word currAddress = 0x0; 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) {}
}
// Enable access to ports 0120h
send_GBM(0x09);
// Enable access to ports 2100h
send_GBM(0x11);
// Write rest of the banks
for (byte currBank = 2; currBank < (fileSize / 0x4000); currBank++) {
// 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 (word currAddress = 0x4000; currAddress < 0x7FFF; currAddress += 128) {
for (; currAddress < 0x7FFF; currAddress += 128) {
// Fill SD buffer
myFile.read(sdBuffer, 128);
// Write flash buffer command
writeByte_GBM(0x2100, 0x1);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0xA0);
// Enable access to ports 0x120 and 0x2100
send_GBM(0x09);
send_GBM(0x11);
// Setting bank here does not work and aborts the write
// 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++) {
send_GBM(0x0F, currAddress + currByte, sdBuffer[currByte]);
writeByte_GBM(currAddress + currByte, sdBuffer[currByte]);
}
// Execute write
send_GBM(0x0F, currAddress + 127, 0xFF);
writeByte_GBM(currAddress + 127, 0xFF);
// Wait for write to complete
writeByte_GBM(0x2100, 0x1);
while ((readByte_GBM(0) & 0x80) != 0x80) {}
while ((readByte_GBM(currAddress) & 0x80) != 0x80) {}
}
}
// Close the file: