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V2.4 Add support for SST29LE010 N64 Repro (128KB only)
For some reason I can only read or write the first 128KB while the second 128KB remain 0x00. You might have to re-calculate your homebrew rom's checksum if you had to trim it down to 128KB. In this case you can use chksum64.exe out of the libdragon devkit. Not sure if this is needed though. And yes by "SST29LE010 N64 Repro" I'm jokingly referring to the Gameshark. I wanted to turn the Gameshark into an import adapter using Lac's boot emu but the boot emu just restarts itself since the Gameshark isn't switching to the top cart slot. Sometimes the Gameshark locks up, then you have to plug a 6102 cartridge into the Gamebuster's top slot and then connect both to the cart reader and read the rom. After that it should be accessible again. Don't use this to update your working Gameshark since you can't read nor write the whole 256KB right now. But if you have a broken one, have fun. :) I tested this with a Gameshark V2.0
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sanni
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@ -2,8 +2,8 @@
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Cartridge Reader for Arduino Mega2560
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Author: sanni
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Date: 30-10-2018
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Version: 2.3
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Date: 13-01-2019
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Version: 2.4
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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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@ -37,7 +37,7 @@
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vogelfreiheit - N64 flashram fix
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**********************************************************************************/
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char ver[5] = "2.3";
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char ver[5] = "2.4";
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/******************************************
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Define Starting Point
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@ -74,13 +74,14 @@ static const char N64CRCMenuItem4[] PROGMEM = "Reset";
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static const char* const menuOptionsN64CRC[] PROGMEM = {N64CRCMenuItem1, N64CRCMenuItem2, N64CRCMenuItem3, N64CRCMenuItem4};
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// Rom menu
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static const char N64RomItem1[] PROGMEM = "4MB";
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static const char N64RomItem2[] PROGMEM = "8MB";
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static const char N64RomItem3[] PROGMEM = "12MB";
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static const char N64RomItem4[] PROGMEM = "16MB";
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static const char N64RomItem5[] PROGMEM = "32MB";
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static const char N64RomItem6[] PROGMEM = "64MB";
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static const char* const romOptionsN64[] PROGMEM = {N64RomItem1, N64RomItem2, N64RomItem3, N64RomItem4, N64RomItem5, N64RomItem6};
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static const char N64RomItem1[] PROGMEM = "256KB";
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static const char N64RomItem2[] PROGMEM = "4MB";
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static const char N64RomItem3[] PROGMEM = "8MB";
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static const char N64RomItem4[] PROGMEM = "12MB";
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static const char N64RomItem5[] PROGMEM = "16MB";
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static const char N64RomItem6[] PROGMEM = "32MB";
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static const char N64RomItem7[] PROGMEM = "64MB";
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static const char* const romOptionsN64[] PROGMEM = {N64RomItem1, N64RomItem2, N64RomItem3, N64RomItem4, N64RomItem5, N64RomItem6, N64RomItem7};
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// Save menu
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static const char N64SaveItem1[] PROGMEM = "None";
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@ -1088,38 +1089,43 @@ void printCartInfo_N64() {
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// Set cartsize manually
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unsigned char N64RomMenu;
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// Copy menuOptions out of progmem
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convertPgm(romOptionsN64, 6);
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N64RomMenu = question_box("Select ROM size", menuOptions, 6, 0);
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convertPgm(romOptionsN64, 7);
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N64RomMenu = question_box("Select ROM size", menuOptions, 7, 0);
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// wait for user choice to come back from the question box menu
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switch (N64RomMenu)
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{
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case 0:
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// 1MB, will get reduced to 256KB later
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cartSize = 1;
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break;
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case 1:
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// 4MB
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cartSize = 4;
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break;
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case 1:
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case 2:
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// 8MB
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cartSize = 8;
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break;
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case 2:
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case 3:
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// 12MB
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cartSize = 12;
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break;
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case 3:
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case 4:
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// 16MB
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cartSize = 16;
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break;
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case 4:
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case 5:
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// 32MB
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cartSize = 32;
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break;
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case 5:
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case 6:
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// 64MB
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cartSize = 64;
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break;
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@ -2094,7 +2100,14 @@ readn64rom:
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print_Error(F("SD Error"), true);
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}
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for (unsigned long currByte = romBase; currByte < (romBase + (cartSize * 1024 * 1024)); currByte += 512) {
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unsigned long romSize;
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// 256KB romSize
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if (cartSize == 1)
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romSize = cartSize * 262144;
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else
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romSize = cartSize * 1048576;
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for (unsigned long currByte = romBase; currByte < romBase + romSize; currByte += 512) {
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// Blink led
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if (currByte % 16384 == 0)
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PORTB ^= (1 << 4);
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@ -2231,13 +2244,21 @@ void flashRepro_N64() {
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println_Msg(F("Fujitsu MSP55LV512"));
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else if ((strcmp(flashid, "227E") == 0) && (strcmp(cartID, "3901") == 0))
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println_Msg(F("Intel 512M29EW"));
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else if (strcmp(flashid, "0808") == 0)
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println_Msg(F("SST 29LE010"));
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// Print info
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print_Msg(F("ID: "));
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print_Msg(flashid);
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print_Msg(F(" Size: "));
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print_Msg(cartSize);
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println_Msg(F("MB"));
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if (strcmp(flashid, "0808") == 0) {
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print_Msg(128);
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println_Msg(F("KB"));
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}
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else {
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print_Msg(cartSize);
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println_Msg(F("MB"));
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}
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println_Msg("");
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println_Msg(F("This will erase your"));
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println_Msg(F("Repro Cartridge."));
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@ -2267,10 +2288,16 @@ void flashRepro_N64() {
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display_Update();
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// Compare file size to flashrom size
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if ((fileSize / 1048576) > cartSize) {
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print_Error(F("File too big"), true);
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if (cartSize == 1) {
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if ((fileSize / 1048576 * 4) > cartSize) {
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print_Error(F("File too big"), true);
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}
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}
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else {
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if ((fileSize / 1048576) > cartSize) {
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print_Error(F("File too big"), true);
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}
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}
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// Erase needed sectors
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if (strcmp(flashid, "227E") == 0) {
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// Spansion S29GL256N or Fujitsu MSP55LV512 with 0x20000 sector size and 32 byte buffer
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@ -2289,16 +2316,19 @@ void flashRepro_N64() {
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// Macronix MX29LV640, C9 is top boot and CB is bottom boot block
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eraseFlashrom_N64(0x8000);
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}
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else if (strcmp(flashid, "0808") == 0) {
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// SST 29LE010, chip erase not needed as eeprom automaticly erases during the write cycle
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}
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// Check if erase was successful
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if (blankcheckFlashrom_N64()) {
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if (blankcheckFlashrom_N64() || (strcmp(flashid, "0808") == 0)) {
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if ((strcmp(flashid, "0808") != 0))
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println_Msg(F("OK"));
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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(cartID, "3901") == 0) && (strcmp(flashid, "227E") == 0)) {
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// Intel 512M29EW(64MB) with 0x20000 sector size and 128 byte buffer
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writeFlashBuffer_N64(0x20000, 128);
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@ -2320,7 +2350,9 @@ void flashRepro_N64() {
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writeIntel4400_N64();
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resetIntel4400_N64();
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}
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else if (strcmp(flashid, "0808") == 0) {
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writeSST29LE010_N64();
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}
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// Close the file:
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myFile.close();
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@ -2382,6 +2414,18 @@ void resetMSP55LV100_N64(unsigned long flashBase) {
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delay(100);
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}
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//Reset ST29LE010
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void resetST29LE010_N64(unsigned long flashBase) {
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// Send reset Command
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0xF0F0);
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delay(100);
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}
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// Common reset command
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void resetFlashrom_N64(unsigned long flashBase) {
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// Send reset Command
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@ -2524,8 +2568,8 @@ void idFlashrom_N64() {
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resetFlashrom_N64(romBase);
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}
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//Test for Fujitsu MSP55LV100S (64MB)
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else {
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//Test for Fujitsu MSP55LV100S (64MB)
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// Send flashrom ID command
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setAddress_N64(romBase + (0x555 << 1));
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writeWord_N64(0xAAAA);
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@ -2545,6 +2589,29 @@ void idFlashrom_N64() {
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cartSize = 64;
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strncpy(flashid , cartID, 5);
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}
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else {
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//Test for SST 29LE010
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//Send flashrom ID command
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0x9090);
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setAddress_N64(romBase);
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// Read 1 byte vendor ID
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readWord_N64();
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// Read 2 bytes flashrom ID
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sprintf(cartID, "%04X", readWord_N64());
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if (strcmp(cartID, "0808") == 0) {
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resetST29LE010_N64(romBase);
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cartSize = 1;
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strncpy(flashid , cartID, 5);
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}
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}
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}
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}
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@ -2750,6 +2817,28 @@ void eraseFlashrom_N64(unsigned long sectorSize) {
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}
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}
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// SST29LE010 erase command
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void eraseSST29LE010_N64() {
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print_Msg(F("Erasing..."));
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display_Update();
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//Sending erase command according to datasheet
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0x8080);
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0x1010);
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delay(20);
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}
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boolean blankcheckFlashrom_N64() {
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for (unsigned long currByte = romBase; currByte < romBase + fileSize; currByte += 512) {
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// Blink led
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@ -2761,13 +2850,48 @@ boolean blankcheckFlashrom_N64() {
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for (int c = 0; c < 512; c += 2) {
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if (readWord_N64() != 0xFFFF) {
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return 0;
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if ((strcmp(flashid, "0808") == 0) && (currByte > romBase + 0x3F) && (currByte < romBase + 0x1080)) {
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// Gameshark maps this area to the bootcode of the plugged in cartridge
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}
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else {
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return 0;
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}
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}
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}
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}
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return 1;
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}
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// Write SST29LE010
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void writeSST29LE010_N64() {
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// Each 29LE010 has 1024 pages, each 128 bytes in size
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for (unsigned long currPage = 0; currPage < 1024; currPage++) {
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// Fill SD buffer with twice the amount since we flash 2 chips
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myFile.read(sdBuffer, 256);
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// Blink led
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PORTB ^= (1 << 4);
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//Send page write command to both flashroms
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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writeWord_N64(0xA0A0);
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// Write 1 page each, one flashrom gets the low byte, the other the high byte.
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for (unsigned long currByte = 0; currByte < 256; currByte += 2) {
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// Set address
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setAddress_N64(romBase + (256 * currPage) + currByte);
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// Join two bytes into one word
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word currWord = ((sdBuffer[currByte] & 0xFF) << 8) | (sdBuffer[currByte + 1] & 0xFF);
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// Send byte data
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writeWord_N64(currWord);
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}
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delay(30);
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}
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}
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// Write Intel flashrom
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void writeIntel4400_N64() {
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for (unsigned long currSector = 0; currSector < fileSize; currSector += 131072) {
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@ -3001,7 +3125,12 @@ unsigned long verifyFlashrom_N64() {
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setAddress_N64(romBase + currSector + currSdBuffer + currByte);
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// Compare both
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if (readWord_N64() != currWord) {
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writeErrors++;
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if ( (strcmp(flashid, "0808") == 0) && (currSector + currSdBuffer + currByte > 0x3F) && (currSector + currSdBuffer + currByte < 0x1080)) {
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// Gameshark maps this area to the bootcode of the plugged in cartridge
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}
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else {
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writeErrors++;
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}
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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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