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Add CFI option to SNES repro menu

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Only tested with 29LV640 on Chinese LoROM repro.
This commit is contained in:
sanni 2024-06-13 16:43:20 +02:00 committed by GitHub
parent 8535552b9a
commit 27a213a3c1
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GPG Key ID: B5690EEEBB952194
3 changed files with 2950 additions and 2724 deletions
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4
Cart_Reader/Config.h
View File

@ -127,7 +127,7 @@
/* [ Flashrom Programmer for SNES repros -------------------------- ] /* [ Flashrom Programmer for SNES repros -------------------------- ]
*/ */
//#define ENABLE_FLASH #define ENABLE_FLASH
//#define ENABLE_FLASH16 //#define ENABLE_FLASH16
/****/ /****/
@ -212,7 +212,7 @@
/* [ Super Famicom SF Memory Cassette ----------------------------- ] /* [ Super Famicom SF Memory Cassette ----------------------------- ]
*/ */
//#define ENABLE_SFM #define ENABLE_SFM
/****/ /****/

190
Cart_Reader/FLASH.ino
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@ -2363,7 +2363,197 @@ void print_Eprom(int numBytes) {
} }
display_Update(); display_Update();
} }
#endif #endif
/******************************************
CFI flashrom functions (copy&paste from GB.ino)
*****************************************/
void sendCFICommand_Flash(byte cmd) {
writeByteCompensated_Flash(0xAAA, 0xaa);
writeByteCompensated_Flash(0x555, 0x55);
writeByteCompensated_Flash(0xAAA, cmd);
}
byte readByteCompensated_Flash(int address) {
byte data = readByte_Flash(address >> (flashX16Mode ? 1 : 0));
if (flashSwitchLastBits) {
return (data & 0b11111100) | ((data << 1) & 0b10) | ((data >> 1) & 0b01);
}
return data;
}
void writeByteCompensated_Flash(int address, byte data) {
if (flashSwitchLastBits) {
data = (data & 0b11111100) | ((data << 1) & 0b10) | ((data >> 1) & 0b01);
}
writeByte_Flash(address >> (flashX16Mode ? 1 : 0), data);
}
void startCFIMode_Flash(boolean x16Mode) {
if (x16Mode) {
writeByte_Flash(0x555, 0xf0); //x16 mode reset command
delay(500);
writeByte_Flash(0x555, 0xf0); //Double reset to get out of possible Autoselect + CFI mode
delay(500);
writeByte_Flash(0x55, 0x98); //x16 CFI Query command
} else {
writeByte_Flash(0xAAA, 0xf0); //x8 mode reset command
delay(100);
writeByte_Flash(0xAAA, 0xf0); //Double reset to get out of possible Autoselect + CFI mode
delay(100);
writeByte_Flash(0xAA, 0x98); //x8 CFI Query command
}
}
void identifyCFI_Flash() {
display_Clear();
// Reset flash
dataOut();
writeByteCompensated_Flash(0xAAA, 0xf0);
delay(100);
// Trying x8 mode first
startCFIMode_Flash(false);
dataIn8();
char cfiQRYx8[7];
char cfiQRYx16[7];
sprintf(cfiQRYx8, "%02X%02X%02X", readByte_Flash(0x20), readByte_Flash(0x22), readByte_Flash(0x24));
sprintf(cfiQRYx16, "%02X%02X%02X", readByte_Flash(0x10), readByte_Flash(0x11), readByte_Flash(0x12));
if (strcmp(cfiQRYx8, "515259") == 0) {
println_Msg(F("Normal CFI x8 Mode"));
flashX16Mode = false;
flashSwitchLastBits = false;
} else if (strcmp(cfiQRYx8, "52515A") == 0) { // QRY in x8 mode with switched last bit
println_Msg(F("Switched CFI x8 Mode"));
flashX16Mode = false;
flashSwitchLastBits = true;
} else if (strcmp(cfiQRYx16, "515259") == 0) { // QRY in x16 mode
println_Msg(F("Normal CFI x16 Mode"));
flashX16Mode = true;
flashSwitchLastBits = false;
} else if (strcmp(cfiQRYx16, "52515A") == 0) { // QRY in x16 mode with switched last bit
println_Msg(F("Switched CFI x16 Mode"));
flashX16Mode = true;
flashSwitchLastBits = true;
} else {
// Try x16 mode next
startCFIMode(true);
sprintf(cfiQRYx16, "%02X%02X%02X", readByte_Flash(0x10), readByte_Flash(0x11), readByte_Flash(0x12));
if (strcmp(cfiQRYx16, "515259") == 0) { // QRY in x16 mode
println_Msg(F("Normal CFI x16 Mode"));
flashX16Mode = true;
flashSwitchLastBits = false;
} else if (strcmp(cfiQRYx16, "52515A") == 0) { // QRY in x16 mode with switched last bit
println_Msg(F("Switched CFI x16 Mode"));
flashX16Mode = true;
flashSwitchLastBits = true;
} else {
println_Msg(F("CFI Query failed!"));
display_Update();
wait();
return;
}
}
flashBanks = 1 << (readByteCompensated_Flash(0x4E) - 14); // - flashX16Mode);
// Reset flash
dataOut();
writeByteCompensated_Flash(0xAAA, 0xf0);
dataIn8();
delay(100);
display_Update();
}
// Write flashrom
void writeCFI_Flash() {
filePath[0] = '\0';
sd.chdir("/");
fileBrowser(F("Select file"));
display_Clear();
if (openFlashFile()) {
// Reset flash
dataOut();
writeByteCompensated_Flash(0xAAA, 0xf0);
dataIn8();
delay(100);
// Reset flash
dataOut();
writeByte_Flash(0x555, 0xf0);
dataIn8();
delay(100);
println_Msg(F("Erasing..."));
display_Update();
// Erase flash
dataOut();
sendCFICommand_Flash(0x80);
sendCFICommand_Flash(0x10);
dataIn8();
// Read the status register
byte statusReg = readByte_Flash(0);
// After a completed erase D7 will output 1
while ((statusReg & 0x80) != 0x80) {
// Blink led
blinkLED();
delay(100);
// Update Status
statusReg = readByte_Flash(0);
}
println_Msg(F("Writing flash"));
display_Update();
//Initialize progress bar
uint32_t processedProgressBar = 0;
uint32_t totalProgressBar = (uint32_t)fileSize;
draw_progressbar(0, totalProgressBar);
for (unsigned long currAddr = 0; currAddr < fileSize; currAddr += 512) {
myFile.read(sdBuffer, 512);
// Blink led
if (currAddr % 4096 == 0)
blinkLED();
for (int currByte = 0; currByte < 512; currByte++) {
// Write command sequence
dataOut();
sendCFICommand_Flash(0xa0);
// Write current byte
writeByte_Flash(currAddr + currByte, sdBuffer[currByte]);
dataIn8();
// Read the status register
byte statusReg = readByte_Flash(currAddr + currByte);
while ((statusReg & 0x80) != (sdBuffer[currByte] & 0x80)) {
statusReg = readByte_Flash(currAddr + currByte);
}
}
// update progress bar
processedProgressBar += 512;
draw_progressbar(processedProgressBar, totalProgressBar);
}
// Close the file:
myFile.close();
}
// Reset flash
dataOut();
writeByteCompensated_Flash(0xAAA, 0xf0);
delay(100);
dataIn8();
}
#endif #endif
//****************************************** //******************************************

60
Cart_Reader/SNES.ino
View File

@ -55,24 +55,60 @@ static const char confMenuItem4[] PROGMEM = "6MB ExROM 256K SRAM";
static const char* const menuOptionsConfManual[] PROGMEM = { confMenuItem1, confMenuItem2, confMenuItem3, confMenuItem4, FSTRING_RESET }; static const char* const menuOptionsConfManual[] PROGMEM = { confMenuItem1, confMenuItem2, confMenuItem3, confMenuItem4, FSTRING_RESET };
// Repro menu items // Repro menu items
static const char reproMenuItem1[] PROGMEM = "LoROM (P0)"; static const char reproMenuItem1[] PROGMEM = "CFI LoROM";
static const char reproMenuItem2[] PROGMEM = "HiROM (P0)"; static const char reproMenuItem2[] PROGMEM = "CFI HiROM";
static const char reproMenuItem3[] PROGMEM = "ExLoROM (P1)"; static const char reproMenuItem3[] PROGMEM = "LoROM (P0)";
static const char reproMenuItem4[] PROGMEM = "ExHiROM (P1)"; static const char reproMenuItem4[] PROGMEM = "HiROM (P0)";
static const char* const menuOptionsRepro[] PROGMEM = { reproMenuItem1, reproMenuItem2, reproMenuItem3, reproMenuItem4, FSTRING_RESET }; static const char reproMenuItem5[] PROGMEM = "ExLoROM (P1)";
static const char reproMenuItem6[] PROGMEM = "ExHiROM (P1)";
static const char* const menuOptionsRepro[] PROGMEM = { reproMenuItem1, reproMenuItem2, reproMenuItem3, reproMenuItem4, reproMenuItem5, reproMenuItem6, FSTRING_RESET };
// SNES repro menu // SNES repro menu
void reproMenu() { void reproMenu() {
// create menu with title and 6 options to choose from // create menu with title and 7 options to choose from
unsigned char snsRepro; unsigned char snsRepro;
// Copy menuOptions out of progmem // Copy menuOptions out of progmem
convertPgm(menuOptionsRepro, 5); convertPgm(menuOptionsRepro, 7);
snsRepro = question_box(F("Select Repro Type"), menuOptions, 5, 0); snsRepro = question_box(F("Select Repro Type"), menuOptions, 7, 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 (snsRepro) { switch (snsRepro) {
#ifdef ENABLE_FLASH #ifdef ENABLE_FLASH
case 0: case 0:
// CFI LoROM
display_Clear();
display_Update();
mapping = 0;
flashSize = 4194304;
setup_Flash8();
identifyCFI_Flash();
writeCFI_Flash();
verifyFlash();
// Prints string out of the common strings array either with or without newline
print_STR(press_button_STR, 0);
display_Update();
wait();
resetArduino();
break;
case 1:
// CFI HiROM
display_Clear();
display_Update();
mapping = 1;
flashSize = 4194304;
setup_Flash8();
identifyCFI_Flash();
writeCFI_Flash();
verifyFlash();
// Prints string out of the common strings array either with or without newline
print_STR(press_button_STR, 0);
display_Update();
wait();
resetArduino();
break;
case 2:
// LoRom // LoRom
display_Clear(); display_Clear();
display_Update(); display_Update();
@ -83,7 +119,7 @@ void reproMenu() {
mode = CORE_FLASH8; mode = CORE_FLASH8;
break; break;
case 1: case 3:
// HiRom // HiRom
display_Clear(); display_Clear();
display_Update(); display_Update();
@ -94,7 +130,7 @@ void reproMenu() {
mode = CORE_FLASH8; mode = CORE_FLASH8;
break; break;
case 2: case 4:
// ExLoRom // ExLoRom
display_Clear(); display_Clear();
display_Update(); display_Update();
@ -105,7 +141,7 @@ void reproMenu() {
mode = CORE_FLASH8; mode = CORE_FLASH8;
break; break;
case 3: case 5:
// ExHiRom // ExHiRom
display_Clear(); display_Clear();
display_Update(); display_Update();
@ -117,7 +153,7 @@ void reproMenu() {
break; break;
#endif #endif
case 4: case 6:
resetArduino(); resetArduino();
break; break;
} }