mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-15 01:15:06 +01:00
Always disable SRAM when flashing any hirom repros
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sanni
parent
27b84d2f7e
commit
f798336aaa
@ -15,7 +15,7 @@ unsigned long time;
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unsigned long blank;
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unsigned long sectorSize;
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uint16_t bufferSize;
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byte mapping = 1;
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byte mapping = 0;
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/******************************************
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Menu
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@ -57,6 +57,10 @@ static const char epromMenuItem4[] PROGMEM = "Verify";
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static const char* const menuOptionsEprom[] PROGMEM = { flashMenuItemBlankcheck, flashMenuItemRead, flashMenuItemWrite, epromMenuItem4, flashMenuItemPrint, FSTRING_RESET };
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void flashMenu() {
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display_Clear();
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display_Update();
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mapping = 0;
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// create menu with title and 5 options to choose from
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unsigned char flashSlot;
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// Copy menuOptions out of progmem
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@ -77,9 +81,6 @@ void flashMenu() {
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break;
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case 1:
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display_Clear();
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display_Update();
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mapping = 1;
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setup_Flash8();
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id_Flash8();
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wait();
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@ -87,15 +88,11 @@ void flashMenu() {
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break;
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case 2:
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display_Clear();
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display_Update();
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setup_Eprom();
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mode = CORE_EPROM;
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break;
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case 3:
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display_Clear();
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display_Update();
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setup_Flash16();
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id_Flash16();
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wait();
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@ -114,7 +111,7 @@ void flashMenu() {
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void flashMenu() {
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display_Clear();
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display_Update();
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mapping = 1;
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mapping = 0;
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// create menu with title and 3 options to choose from
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unsigned char flashMode;
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@ -856,15 +853,15 @@ void writeByte_Flash(unsigned long myAddress, byte myData) {
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// A0-A7
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PORTF = myAddress & 0xFF;
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// standard for flash adapter and SNES HiRom
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if (mapping == 1) {
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// flash adapter (without SRAM save chip)
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if (mapping == 0) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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}
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// for SNES LoRom
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else if (mapping == 0) {
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// SNES LoRom
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else if (mapping == 1) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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@ -872,8 +869,39 @@ void writeByte_Flash(unsigned long myAddress, byte myData) {
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// A15-A22
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PORTL = (myAddress >> 15) & 0xFF;
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}
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// for SNES ExLoRom repro with 2x 4MB
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// SNES HiRom
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else if (mapping == 2) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// for SNES LoRom repro with 2x 2MB
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else if (mapping == 11) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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PORTK |= (1 << 7);
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// A15-A22
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PORTL = (myAddress >> 15) & 0xFF;
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// Flip BA6(PL6) to address second rom chip
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PORTL ^= (1 << 6);
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}
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// for SNES HiRom repro with 2x 2MB
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else if (mapping == 22) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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// Flip BA5(PL5) to address second rom chip
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PORTL ^= (1 << 5);
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// for SNES ExLoRom repro with 2x 4MB
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else if (mapping == 111) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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@ -884,7 +912,7 @@ void writeByte_Flash(unsigned long myAddress, byte myData) {
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PORTL ^= (1 << 7);
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}
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// for SNES ExHiRom repro
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else if (mapping == 3) {
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else if (mapping == 222) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A22
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@ -900,28 +928,6 @@ void writeByte_Flash(unsigned long myAddress, byte myData) {
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// for SNES LoRom repro with 2x 2MB
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else if (mapping == 4) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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PORTK |= (1 << 7);
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// A15-A22
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PORTL = (myAddress >> 15) & 0xFF;
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// Flip BA6(PL6) to address second rom chip
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PORTL ^= (1 << 6);
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}
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// for SNES HiRom repro with 2x 2MB
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else if (mapping == 5) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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// Flip BA5(PL5) to address second rom chip
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PORTL ^= (1 << 5);
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// Data
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PORTC = myData;
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@ -962,15 +968,15 @@ byte readByte_Flash(unsigned long myAddress) {
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// A0-A7
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PORTF = myAddress & 0xFF;
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// standard for flash adapter and SNES HiRom
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if (mapping == 1) {
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// flash adapter (without SRAM save chip)
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if (mapping == 0) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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}
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// for SNES LoRom
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else if (mapping == 0) {
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// SNES LoRom
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else if (mapping == 1) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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@ -978,8 +984,39 @@ byte readByte_Flash(unsigned long myAddress) {
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// A15-A22
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PORTL = (myAddress >> 15) & 0xFF;
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}
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// for SNES ExLoRom repro
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// SNES HiRom
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else if (mapping == 2) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// for SNES LoRom repro with 2x 2MB
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else if (mapping == 11) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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PORTK |= (1 << 7);
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// A15-A22
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PORTL = (myAddress >> 15) & 0xFF;
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// Flip BA6(PL6) to address second rom chip
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PORTL ^= (1 << 6);
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}
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// for SNES HiRom repro with 2x 2MB
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else if (mapping == 22) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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// Flip BA5(PL5) to address second rom chip
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PORTL ^= (1 << 5);
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// for SNES ExLoRom repro
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else if (mapping == 111) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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@ -990,7 +1027,7 @@ byte readByte_Flash(unsigned long myAddress) {
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PORTL ^= (1 << 7);
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}
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// for SNES ExHiRom repro
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else if (mapping == 3) {
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else if (mapping == 222) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A22
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@ -1006,28 +1043,6 @@ byte readByte_Flash(unsigned long myAddress) {
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// for SNES LoRom repro with 2x 2MB
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else if (mapping == 4) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set SNES A15(PK7) HIGH to disable SRAM
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PORTK |= (1 << 7);
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// A15-A22
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PORTL = (myAddress >> 15) & 0xFF;
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// Flip BA6(PL6) to address second rom chip
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PORTL ^= (1 << 6);
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}
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// for SNES HiRom repro with 2x 2MB
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else if (mapping == 5) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A23
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PORTL = (myAddress >> 16) & 0xFF;
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// Flip BA5(PL5) to address second rom chip
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PORTL ^= (1 << 5);
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// Switch SNES BA6(PL6) to HIGH to disable SRAM
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PORTL |= (1 << 6);
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}
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// Arduino running at 16Mhz -> one nop = 62.5ns
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__asm__("nop\n\t"
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@ -112,11 +112,11 @@ void reproCFIMenu() {
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// Switch to second ROM chip, see flash.ino low level functions line 811
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// LoROM
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if (mapping == 0)
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mapping = 4;
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if (mapping == 1)
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mapping = 11;
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// HiROM
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else if (mapping == 1)
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mapping = 5;
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else if (mapping == 2)
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mapping = 22;
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// Write second rom chip
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display_Clear();
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@ -159,13 +159,13 @@ void reproMenu() {
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#ifdef ENABLE_FLASH
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case 0:
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// CFI LoROM
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mapping = 0;
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mapping = 1;
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reproCFIMenu();
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break;
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case 1:
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// CFI HiROM
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mapping = 1;
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mapping = 2;
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reproCFIMenu();
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break;
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@ -173,7 +173,7 @@ void reproMenu() {
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// LoRom
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display_Clear();
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display_Update();
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mapping = 0;
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mapping = 1;
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setup_Flash8();
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id_Flash8();
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wait();
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@ -184,7 +184,7 @@ void reproMenu() {
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// HiRom
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display_Clear();
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display_Update();
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mapping = 1;
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mapping = 2;
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setup_Flash8();
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id_Flash8();
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wait();
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@ -195,7 +195,7 @@ void reproMenu() {
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// ExLoRom
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display_Clear();
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display_Update();
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mapping = 2;
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mapping = 111;
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setup_Flash8();
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id_Flash8();
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wait();
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@ -206,7 +206,7 @@ void reproMenu() {
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// ExHiRom
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display_Clear();
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display_Update();
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mapping = 3;
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mapping = 222;
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setup_Flash8();
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id_Flash8();
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wait();
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