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

V29B: Added warning when dumping GB Memory flash

Browse Source 
Still have the bank switching error when writing, problem is located at line 2159. I can't switch the bank any time before since I need an uneven bank for the 0x5555 command and I can't switch afterwards or it will be too late and everything will be written to bank 1...
This commit is contained in:
sanni 2017-10-11 23:42:07 +02:00 committed by GitHub
parent 79346e3a51
commit 43ec1a423b
2 changed files with 63 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Cart_Reader/Cart_Reader.ino
View File

@ -3,7 +3,7 @@
Author: sanni
Date: 2017-10-11
Version: V29A
Version: V29B
SD lib: https://github.com/greiman/SdFat
LCD lib: https://github.com/adafruit/Adafruit_SSD1306
@ -34,7 +34,7 @@
YamaArashi - GBA flashrom bank switch command
**********************************************************************************/
char ver[5] = "V29A";
char ver[5] = "V29B";
/******************************************
Define Output

86
Cart_Reader/NP.ino
View File

@ -1,6 +1,6 @@
//******************************************
// NINTENDO POWER Cartridges for SFC and GB
// (GB Memory starts at around line 1430)
// (GB Memory starts at around line 1460)
//******************************************
/******************************************
@ -1494,10 +1494,24 @@ void gbmMenu() {
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("/");
// Read flash
// Enable access to ports 0120h
send_GBM(0x09);
// Map entire flashrom
send_GBM(0x04);
// Disable ports 0x0120...
@ -1506,7 +1520,6 @@ void gbmMenu() {
readROM_GBM(64);
break;
// Erase Flash
case 2:
// Clear screen
@ -2070,7 +2083,7 @@ void writeFlash_GBM() {
print_Error(F("File is too big."), true);
}
//enable access to ports 0120h
// Enable access to ports 0120h
send_GBM(0x09);
// Enable write
send_GBM(0x0A);
@ -2082,7 +2095,7 @@ void writeFlash_GBM() {
// 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
// Disable ports 0x2100 and 0x120 or else addresses will not be writable
send_GBM(0x10);
send_GBM(0x08);
@ -2097,45 +2110,68 @@ void writeFlash_GBM() {
// Check if flashrom is ready for writing or busy
while ((readByte_GBM(0) & 0x80) != 0x80) {}
// first bank: 0x0000-0x7FFF,
word currAddress = 0x0;
// Blink led
PORTB ^= (1 << 4);
// only write the first bank for now as bank switching doesn't work yet
for (word currBank = 0x1; currBank < 0x2; currBank++) {
// Blink Led
// 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++) {
// Blink led
PORTB ^= (1 << 4);
// all following banks: 0x4000-0x7FFF
if (currBank > 1) {
currAddress = 0x4000;
}
// write one bank
for (; currAddress < 0x7FFF; currAddress += 128) {
// Write single bank in 128 byte steps
for (word currAddress = 0x4000; 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);
writeByte_GBM(0x2100, 0x1);
send_GBM(0x0F, 0x5555, 0xAA);
send_GBM(0x0F, 0x2AAA, 0x55);
send_GBM(0x0F, 0x5555, 0xA0);
// Setting bank here does not work and aborts the write
writeByte_GBM(0x2100, currBank);
// Fill flash buffer
for (word currByte = 0; currByte < 128; currByte++) {
writeByte_GBM(currAddress + currByte, sdBuffer[currByte]);
send_GBM(0x0F, currAddress + currByte, sdBuffer[currByte]);
}
// Execute write
writeByte_GBM(currAddress + 127, 0xFF);
send_GBM(0x0F, currAddress + 127, 0xFF);
// Wait for write to complete
writeByte_GBM(0x2100, 0x1);
while ((readByte_GBM(0) & 0x80) != 0x80) {}
}
}
// Close the file:
myFile.close();
// Reset flashrom
resetFlash_GBM();
println_Msg(F("Done"));
}
else {