mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-24 05:29:17 +01:00
V24E: Fixed writing N64 repro (new version with Intel chip)
Also re-enabled blankchecking at least until I know this code works reliably. Writing 64MB takes 40 minutes. I did not optimize yet so it might become faster in the future.
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sanni
GitHub
parent
a0e5e1cfcc
commit
56e71a59de
@ -2,8 +2,8 @@
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Cartridge Reader for Arduino Mega2560
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Author: sanni
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Date: 2017-05-15
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Version: V24D
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Date: 2017-05-21
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Version: V24E
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SD lib: https://github.com/greiman/SdFat
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LCD lib: https://github.com/adafruit/Adafruit_SSD1306
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@ -34,7 +34,7 @@
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YamaArashi - GBA flashrom bank switch command
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**********************************************************************************/
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char ver[5] = "V24D";
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char ver[5] = "V24E";
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/******************************************
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Define Output
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@ -979,8 +979,8 @@ void printCartInfo_N64() {
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println_Msg(cartID);
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println_Msg("");
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display_Update();
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// Set cartSize to 1MB for test dumps
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cartSize = 1;
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// Set cartSize to 64MB for test dumps
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cartSize = 64;
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strcpy(romName, "GPERROR");
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print_Error(F("Cartridge unknown"), true);
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}
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@ -2056,7 +2056,7 @@ void flashRepro_N64() {
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print_Msg("ID: ");
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print_Msg(flashid);
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print_Msg(" Size: ");
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print_Msg(cartSize / 1048576);
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print_Msg(cartSize);
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println_Msg("MB");
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println_Msg("");
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println_Msg(F("This will erase your"));
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@ -2088,13 +2088,28 @@ void flashRepro_N64() {
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display_Update();
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// Erase needed sectors
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if (strcmp(flashid, "227E") == 0) {
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eraseSector_N64();
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}
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else if ((strcmp(flashid, "8813") == 0) || (strcmp(flashid, "8816") == 0)) {
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eraseBlock_N64();
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resetReadmode_N64();
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}
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if (blankcheckFlashrom_N64()) {
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// Write flashrom
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println_Msg(F("OK"));
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print_Msg(F("Writing "));
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println_Msg(filePath);
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display_Update();
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if (strcmp(flashid, "227E") == 0) {
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writeFlashBuffer_N64();
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}
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else if ((strcmp(flashid, "8813") == 0) || (strcmp(flashid, "8816") == 0)) {
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writeFlashBlock_N64();
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resetReadmode_N64();
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}
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// Close the file:
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myFile.close();
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@ -2113,11 +2128,17 @@ void flashRepro_N64() {
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print_Error(F("did not verify."), false);
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}
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}
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else {
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print_Error(F("failed"), false);
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}
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}
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else {
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print_Error(F("Can't open file"), false);
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}
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}
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else {
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print_Msg(F("Flash ID: "));
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println_Msg(flashid);
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print_Error(F("Unknown flashrom"), false);
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}
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@ -2128,6 +2149,14 @@ void flashRepro_N64() {
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display_Update();
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}
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// Reset to read mode
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void resetReadmode_N64() {
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for (unsigned long currPartition = 0; currPartition < (cartSize * 0x100000); currPartition += 0x20000) {
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setAddress_N64(romBase + currPartition);
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writeWord_N64(0xFF);
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}
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}
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void resetFlashrom_N64(unsigned long flashBase) {
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// Send reset Command
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setAddress_N64(flashBase);
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@ -2153,10 +2182,14 @@ void idFlashrom_N64() {
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// Read flashrom ID
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sprintf(flashid, "%04X", readWord_N64());
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// Reset flashrom to read mode
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if (strcmp(flashid, "227E") == 0)
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resetFlashrom_N64(romBase);
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else if ((strcmp(flashid, "8813") == 0) || (strcmp(flashid, "8816") == 0))
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resetReadmode_N64();
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if (strcmp(flashid, "227E") == 0) {
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cartSize = 0x2000000;
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if ((strcmp(flashid, "227E") == 0) || (strcmp(flashid, "8816") == 0)) {
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cartSize = 32;
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// Send ID command to second flashrom
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setAddress_N64(romBase + 0x2000000 + (0x555 << 1));
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@ -2171,17 +2204,136 @@ void idFlashrom_N64() {
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readWord_N64();
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// Read flashrom ID
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sprintf(flashid, "%04X", readWord_N64());
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if (strcmp(flashid, "227E") == 0) {
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cartSize = 0x4000000;
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if ((strcmp(flashid, "227E") == 0) || (strcmp(flashid, "8813") == 0)) {
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cartSize = 64;
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}
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resetFlashrom_N64(romBase + 0x2000000);
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// Reset flashrom to read mode
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if (strcmp(flashid, "227E") == 0)
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resetFlashrom_N64(romBase);
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else if ((strcmp(flashid, "8813") == 0) || (strcmp(flashid, "8816") == 0))
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resetReadmode_N64();
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}
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}
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// Erase Intel flashrom
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void eraseBlock_N64() {
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unsigned long flashBase = romBase;
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print_Msg(F("Erasing..."));
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display_Update();
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// If the game is smaller than 32Mbit only erase the needed blocks
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unsigned long lastBlock = 0x1FFFFFF;
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if (fileSize < 0x1FFFFFF)
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lastBlock = fileSize;
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// Erase 4 blocks with 16kwords each
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for (unsigned long currBlock = 0x0; currBlock < 0x1FFFF; currBlock += 0x8000) {
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// Unlock block command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x60);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Erase command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x20);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Read the status register
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setAddress_N64(flashBase + currBlock);
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word statusReg = readWord_N64();
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while ((statusReg | 0xFF7F) != 0xFFFF) {
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setAddress_N64(flashBase + currBlock);
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statusReg = readWord_N64();
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}
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}
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// Erase up to 255 blocks with 64kwords each
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for (unsigned long currBlock = 0x20000; currBlock < lastBlock; currBlock += 0x1FFFF) {
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// Unlock block command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x60);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Erase command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x20);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Read the status register
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setAddress_N64(flashBase + currBlock);
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word statusReg = readWord_N64();
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while ((statusReg | 0xFF7F) != 0xFFFF) {
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setAddress_N64(flashBase + currBlock);
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statusReg = readWord_N64();
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}
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// Blink led
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PORTB ^= (1 << 4);
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}
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// Check if we should erase the seconds chip too
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if ((cartSize = 64) && (fileSize > 0x2000000)) {
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// Switch base address to second chip
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flashBase = romBase + 0x2000000;
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// 255 blocks with 64kwords each
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for (unsigned long currBlock = 0x0; currBlock < 0x1FDFFFF; currBlock += 0x1FFFF) {
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// Unlock block command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x60);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Erase command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x20);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Read the status register
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setAddress_N64(flashBase + currBlock);
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word statusReg = readWord_N64();
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while ((statusReg | 0xFF7F) != 0xFFFF) {
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setAddress_N64(flashBase + currBlock);
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statusReg = readWord_N64();
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}
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// Blink led
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PORTB ^= (1 << 4);
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}
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// 4 blocks with 16kword each
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for (unsigned long currBlock = 0x1FE0000; currBlock < 0x1FFFFFF; currBlock += 0x8000) {
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// Unlock block command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x60);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Erase command
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0x20);
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setAddress_N64(flashBase + currBlock);
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writeWord_N64(0xD0);
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// Read the status register
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setAddress_N64(flashBase + currBlock);
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word statusReg = readWord_N64();
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while ((statusReg | 0xFF7F) != 0xFFFF) {
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setAddress_N64(flashBase + currBlock);
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statusReg = readWord_N64();
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}
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}
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}
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}
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// Erase Spansion flashrom
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void eraseSector_N64() {
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unsigned long flashBase = romBase;
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println_Msg(F("Erasing Flashrom"));
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print_Msg(F("Erasing..."));
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display_Update();
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for (unsigned long currSector = 0; currSector < fileSize; currSector += 131072) {
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@ -2218,7 +2370,7 @@ void eraseSector_N64() {
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}
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void eraseFlashrom_N64() {
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println_Msg(F("Erasing Flashrom"));
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print_Msg(F("Erasing..."));
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display_Update();
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// Send Erase Command to first flashrom
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@ -2235,7 +2387,7 @@ void eraseFlashrom_N64() {
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setAddress_N64(romBase + (0x555 << 1));
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writeWord_N64(0x10);
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if ((cartSize == 0x4000000) && (fileSize > 0x2000000)) {
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if ((cartSize == 64) && (fileSize > 0x2000000)) {
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// Send Erase Command to second flashrom
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setAddress_N64(romBase + 0x2000000 + (0x555 << 1));
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writeWord_N64(0xAA);
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@ -2264,7 +2416,7 @@ void eraseFlashrom_N64() {
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statusReg = readWord_N64();
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}
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if ((cartSize == 0x4000000) && (fileSize > 0x2000000)) {
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if ((cartSize == 64) && (fileSize > 0x2000000)) {
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// Read the status register
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setAddress_N64(romBase + 0x2000000);
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word statusReg = readWord_N64();
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@ -2279,30 +2431,77 @@ void eraseFlashrom_N64() {
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}
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boolean blankcheckFlashrom_N64() {
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print_Msg(F("Blankcheck..."));
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display_Update();
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for (unsigned long currByte = romBase; currByte < romBase + fileSize; currByte += 512) {
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// Blink led
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if (currByte % 131072 == 0)
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PORTB ^= (1 << 4);
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// Set the address for the next 512 bytes
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// Set the address
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setAddress_N64(currByte);
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for (int c = 0; c < 512; c += 2) {
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if (readWord_N64() != 0xFFFF) {
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println_Msg(F("failed"));
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display_Update();
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return 0;
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}
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}
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}
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println_Msg(F("OK"));
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display_Update();
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return 1;
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}
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// Write Intel flashrom
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void writeFlashBlock_N64() {
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for (unsigned long currSector = 0; currSector < fileSize; currSector += 131072) {
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// Blink led
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PORTB ^= (1 << 4);
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// Write to flashrom
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for (unsigned long currSdBuffer = 0; currSdBuffer < 131072; currSdBuffer += 512) {
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// Fill SD buffer
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myFile.read(sdBuffer, 512);
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// Write 32 words at a time
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for (int currWriteBuffer = 0; currWriteBuffer < 512; currWriteBuffer += 64) {
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// Buffered program command
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer);
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writeWord_N64(0xE8);
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// Check Status register
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer);
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word statusReg = readWord_N64();
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while ((statusReg | 0xFF7F) != 0xFFFF) {
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer);
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statusReg = readWord_N64();
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}
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// Write word count (minus 1)
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer);
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writeWord_N64(0x1F);
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// Write buffer
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for (byte currByte = 0; currByte < 64; currByte += 2) {
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// Join two bytes into one word
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word currWord = ( ( sdBuffer[currWriteBuffer + currByte] & 0xFF ) << 8 ) | ( sdBuffer[currWriteBuffer + currByte + 1] & 0xFF );
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer + currByte);
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writeWord_N64(currWord);
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}
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// Write Buffer to Flash
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer + 62);
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writeWord_N64(0xD0);
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// Read the status register at last written address
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer + 62);
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statusReg = readWord_N64();
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while ((statusReg | 0xFF7F) != 0xFFFF) {
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setAddress_N64(romBase + currSector + currSdBuffer + currWriteBuffer + 62);
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statusReg = readWord_N64();
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}
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}
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}
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}
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}
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// Write flashrom using the faster 16 word write buffer
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void writeFlashBuffer_N64() {
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unsigned long flashBase = romBase;
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@ -2428,6 +2627,13 @@ unsigned long verifyFlashrom_N64() {
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// Compare both
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if (readWord_N64() != currWord) {
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writeErrors++;
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// Abord if too many errors
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if (writeErrors > 20) {
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print_Msg(F("More than "));
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// Close the file:
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myFile.close();
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return writeErrors;
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}
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}
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}
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}
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