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https://github.com/sanni/cartreader.git
synced 2024-11-30 00:14:15 +01:00
Update N64.ino
This completes the N64 Gameshark functions. It adds the command to enable CPLD address ranges of 0x1EEx_xxxx, 0x1EFx_xxxx, and 0x1ECx_xxxx which are necessary to program the SST 28LF040 eeprom. This also adds full support for the SST 28LF040 eeproms.
This commit is contained in:
Richard Weick
GitHub
parent
7cf03d3542
commit
b748faecde
@ -4050,7 +4050,9 @@ unsigned long verifyFlashrom_N64() {
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N64 Gameshark Flash Functions
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*****************************************/
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void flashGameshark_N64() {
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int flashSize = 0;
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// Check flashrom ID's
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unlockGSAddressRanges();
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idGameshark_N64();
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// Check for SST 29LE010 (0808)/SST 28LF040 (0404)/AMTEL AT29LV010A (3535)/SST 29EE010 (0707)
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@ -4078,7 +4080,6 @@ void flashGameshark_N64() {
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filePath[0] = '\0';
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sd.chdir("/");
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fileBrowser(F("Select z64 file"));
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display_Clear();
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display_Update();
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// Create filepath
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@ -4088,18 +4089,25 @@ void flashGameshark_N64() {
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if (myFile.open(filePath, O_READ)) {
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// Get rom size from file
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fileSize = myFile.fileSize();
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display_Clear();
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print_Msg(F("File size: "));
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print_Msg(fileSize / 1024);
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println_Msg(F(" KB"));
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display_Update();
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// Compare file size to flashrom size
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if (fileSize > 262144) {
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// Compare file size to flashrom size for 1 Mbit eeproms
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if (fileSize > 262144 && (flashid == 0x0808 || flashid == 0x3535 || flashid == 0x0707)) {
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print_FatalError(file_too_big_STR);
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}
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// Compare file size to flashrom size for 1 Mbit eeproms
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if (fileSize > 1048576 && flashid == 0x0404) {
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print_FatalError(file_too_big_STR);
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}
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// SST 29LE010, chip erase not needed as this eeprom automaticly erases during the write cycle
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eraseGameshark_N64();
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blankCheck_N64();
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// Write flashrom
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print_Msg(F("Writing "));
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@ -4116,14 +4124,19 @@ void flashGameshark_N64() {
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writeErrors = verifyGameshark_N64();
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if (writeErrors == 0) {
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println_Msg(F("OK"));
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display_Clear();
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display_Update();
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println_Msg(F("Verfied OK"));
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println_Msg(F(""));
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println_Msg(F("Turn Cart Reader off now"));
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display_Update();
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while (1)
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;
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} else {
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print_Msg(writeErrors);
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display_Clear();
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display_Update();
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println_Msg(F("Verification Failed"));
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println_Msg(writeErrors);
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print_Msg(F(" bytes "));
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print_Error(did_not_verify_STR);
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}
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@ -4131,12 +4144,6 @@ void flashGameshark_N64() {
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print_Error(F("Can't open file"));
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}
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}
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// If the ID is unknown show error message
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else {
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print_Msg(F("ID: "));
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println_Msg(flashid_str);
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print_Error(F("Unknown flashrom"));
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}
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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@ -4146,37 +4153,72 @@ void flashGameshark_N64() {
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display_Update();
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}
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void unlockGSAddressRanges() {
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// This enables using the 0x1EEx_xxxx, 0x1EFx_xxxx, and 0x1ECx_xxxx address ranges, necessary for writing to all supported chips
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setAddress_N64(0x10400400);
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writeWord_N64(0x1E);
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writeWord_N64(0x1E);
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}
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//Test for SST 29LE010 or SST 28LF040 (0404) or AMTEL AT29LV010A (3535) or SST 29EE010 (0707)
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void idGameshark_N64() {
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flashid = 0x0;
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//Send flashrom ID command
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0x9090);
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setAddress_N64(romBase);
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setAddress_N64(0x1EC00000);
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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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flashid = readWord_N64();
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if (flashid == 0x0808 || flashid == 0x3535 || flashid == 0x0707) {
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flashSize = 262144;
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}
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if (flashid == 0x0404) {
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//Set SST 28LF040 flashrom size
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flashSize = 1048574;
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if (flashid != 0x0404) {
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println_Msg(F("Check cart connection"));
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println_Msg(F("Unknown Flash ID"));
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sprintf(flashid_str, "%04X", flashid);
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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mainMenu();
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}
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}
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sprintf(flashid_str, "%04X", flashid);
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// Reset flashrom
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resetGameshark_N64();
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}
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//Reset ST29LE010
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void resetGameshark_N64() {
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// Send reset Command
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setAddress_N64(romBase + 0xAAAA);
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if (flashid == 0x0808 || flashid == 0x3535 || flashid == 0x0707) {
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// Send reset command for SST 29LE010 / AMTEL AT29LV010A / SST 29EE010
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xF0F0);
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delay(100);
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} else if (flashid == 0x0404) {
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// Send reset command for SST 28LF040
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xFFFF);
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delay(300);
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}
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}
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// Read rom and save to the SD card
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@ -4203,7 +4245,7 @@ void backupGameshark_N64() {
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print_FatalError(sd_error_STR);
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}
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for (unsigned long currByte = romBase + 0xC00000; currByte < (romBase + 0xC00000 + 262144); currByte += 512) {
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for (unsigned long currByte = romBase + 0xEC00000; currByte < (romBase + 0xEC00000 + flashSize); currByte += 512) {
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// Blink led
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if (currByte % 16384 == 0)
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blinkLED();
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@ -4227,31 +4269,86 @@ void backupGameshark_N64() {
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myFile.close();
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}
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// Send chip erase to the two SST29LE010 inside the Gameshark
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void eraseGameshark_N64() {
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println_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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// Send chip erase to SST 29LE010 / AMTEL AT29LV010A / SST 29EE010
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if (flashid == 0x0808 || flashid == 0x3535 || flashid == 0x0707) {
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0x8080);
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0x1010);
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delay(20);
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}
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// Write Gameshark with 2x SST29LE010 Eeproms
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if (flashid == 0x0404) {
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//Unprotect flash
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setAddress_N64(0x1EF03044);
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readWord_N64();
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setAddress_N64(0x1EE03040);
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readWord_N64();
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setAddress_N64(0x1EE03044);
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readWord_N64();
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setAddress_N64(0x1EE00830);
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readWord_N64();
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setAddress_N64(0x1EF00834);
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readWord_N64();
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setAddress_N64(0x1EF00830);
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readWord_N64();
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setAddress_N64(0x1EE00834);
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readWord_N64();
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delay(1000);
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//Erase flash
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0x3030);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0x3030);
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delay(1000);
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}
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}
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void blankCheck_N64() {
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// Blankcheck
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println_Msg(F("Blankcheck..."));
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display_Update();
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for (unsigned long currSector = 0; currSector < flashSize; currSector += 131072) {
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// Blink led
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blinkLED();
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for (unsigned long currSdBuffer = 0; currSdBuffer < 131072; currSdBuffer += 512) {
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for (int currByte = 0; currByte < 512; currByte += 2) {
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// Read flash
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setAddress_N64(romBase + 0xEC00000 + currSector + currSdBuffer + currByte);
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// Compare both
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if (readWord_N64() != 0xFFFF) {
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println_Msg(F("Not empty"));
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print_FatalError(F("Erase failed"));
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}
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}
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}
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}
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}
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void writeGameshark_N64() {
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// Write Gameshark with 2x SST 29LE010 / AMTEL AT29LV010A / SST 29EE010 Eeproms
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if (flashid == 0x0808 || flashid == 0x3535 || flashid == 0x0707) {
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// Each 29LE010 has 1024 pages, each 128 bytes in size
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myFile.seek(0);
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for (unsigned long currPage = 0; currPage < fileSize / 2; currPage += 128) {
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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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@ -4259,17 +4356,17 @@ void writeGameshark_N64() {
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blinkLED();
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//Send page write command to both flashroms
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(romBase + 0x5554);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(romBase + 0xAAAA);
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setAddress_N64(0x1EF0AAA8);
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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 + 0xC00000 + (currPage * 2) + currByte);
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setAddress_N64(romBase + 0xEC00000 + (currPage * 2) + 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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@ -4279,6 +4376,65 @@ void writeGameshark_N64() {
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}
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}
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if (flashid == 0x0404) {
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// Write Gameshark with 2x SST 28LF040
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//Initialize progress bar
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uint32_t processedProgressBar = 0;
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uint32_t totalProgressBar = (uint32_t)(fileSize);
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draw_progressbar(0, totalProgressBar);
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bool toggle = true;
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myFile.seek(0);
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for (unsigned long currSector = 0; currSector < fileSize; currSector += 16384) {
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// Blink led
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blinkLED();
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for (unsigned long currSdBuffer = 0; currSdBuffer < 16384; currSdBuffer += 256) {
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// Fill SD buffer
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myFile.read(sdBuffer, 256);
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for (unsigned long currByte = 0; currByte < 256; currByte += 2) {
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// Send byte program command
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0xAAAA);
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setAddress_N64(0x1EE05554);
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writeWord_N64(0x5555);
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setAddress_N64(0x1EF0AAA8);
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writeWord_N64(0x1010);
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// Set address
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setAddress_N64(romBase + 0xEC00000 + currSector + currSdBuffer + 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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delayMicroseconds(60);
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}
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processedProgressBar += 256;
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draw_progressbar(processedProgressBar, totalProgressBar);
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blinkLED();
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}
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}
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//Protect flash
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setAddress_N64(0x1EF03044);
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readWord_N64();
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setAddress_N64(0x1EE03040);
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readWord_N64();
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setAddress_N64(0x1EE03044);
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readWord_N64();
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setAddress_N64(0x1EE00830);
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readWord_N64();
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setAddress_N64(0x1EF00834);
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readWord_N64();
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setAddress_N64(0x1EF00830);
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readWord_N64();
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setAddress_N64(0x1EE00814);
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readWord_N64();
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delay(1000);
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}
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}
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unsigned long verifyGameshark_N64() {
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// Open file on sd card
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if (myFile.open(filePath, O_READ)) {
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@ -4294,18 +4450,14 @@ unsigned long verifyGameshark_N64() {
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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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// Read flash
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setAddress_N64(romBase + 0xC00000 + currSector + currSdBuffer + currByte);
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setAddress_N64(romBase + 0xEC00000 + currSector + currSdBuffer + currByte);
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// Compare both
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if (readWord_N64() != currWord) {
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if ((flashid == 0x0808) && (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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} else {
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writeErrors++;
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}
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}
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}
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}
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}
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// Close the file:
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myFile.close();
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return writeErrors;
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