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https://github.com/sanni/cartreader.git
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V6.4: Add ExLoRom and ExHiRom flash options
- LoRom (P0) will write up to 8MB starting from file 0x0 to flashrom 0x0. - HiRom (P0) will write up to 4MB starting from file 0x0 to flashrom 0x0. - ExLoRom (P1) will write the first 4MB starting from file 0x0 to flashrom 0x400000. And then a second block up to 4MB from file 0x400000 to flashrom 0x0. - ExHiRom (P1) will write the first 4MB starting from file 0x0 to flashrom 0x400000. And then a second block up to 4MB from file 0x400000 to flashrom 0x0.
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sanni
parent
78b5f7cb10
commit
527f3562ed
@ -1,5 +1,6 @@
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//******************************************
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// FLASHROM MODULE
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// (also includes SNES repro functions)
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//******************************************
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#include "options.h"
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@ -16,7 +17,7 @@ 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 hiROM = 1;
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byte mapping = 1;
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/******************************************
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Menu
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@ -70,7 +71,7 @@ void flashMenu() {
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case 0:
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display_Clear();
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display_Update();
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hiROM = 1;
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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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@ -745,23 +746,56 @@ void dataIn16() {
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Low level functions
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*****************************************/
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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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if (hiROM == 1) {
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// standard for flash adapter and SNES HiRom
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if (mapping == 1) {
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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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else if (hiROM == 0) {
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// for SNES LoRom
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else if (mapping == 0) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set A15(PK7) HIGH to disable SRAM
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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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}
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if (hiROM == 4) {
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PORTK = (myAddress >> 8) & 0xFF;
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PORTL = (myAddress >> 16) & 0xFF;
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// Set A23(PL7) HIGH to enable high part of ExHiROM
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PORTL |= (1 << 7);
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// for SNES ExLoRom repro
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else if (mapping == 2) {
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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 A22(PL7) to reverse P0 and P1 roms
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PORTL ^= (1 << PL7);
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}
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// for SNES ExHiRom repro
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else if (mapping == 3) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A22
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PORTL = (myAddress >> 16) & 0xFF;
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// Set PL7 to inverse of PL6 to reverse P0 and P1 roms
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if (!(((myAddress >> 16) & 0xFF) & 0x40)) {
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// if PL6 is 0 set PL7 to 1
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PORTL |= (1 << 7);
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}
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else if (((myAddress >> 16) & 0xFF) & 0x40) {
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// if PL6 is 1 set PL7 to 0
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PORTL &= ~ (1 << 7);
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}
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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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// Arduino running at 16Mhz -> one nop = 62.5ns
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@ -782,22 +816,53 @@ void writeByte_Flash(unsigned long myAddress, byte myData) {
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}
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byte readByte_Flash(unsigned long myAddress) {
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// A0-A7
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PORTF = myAddress & 0xFF;
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if (hiROM == 1) {
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// standard for flash adapter and SNES HiRom
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if (mapping == 1) {
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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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else if (hiROM == 0) {
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// for SNES LoRom
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else if (mapping == 0) {
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// A8-A14
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PORTK = (myAddress >> 8) & 0x7F;
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// Set A15(PK7) HIGH to disable SRAM
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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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}
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else if (hiROM == 4) {
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// for SNES ExLoRom repro
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else if (mapping == 2) {
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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 A22(PL7) to reverse P0 and P1 roms
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PORTL ^= (1 << PL7);
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}
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// for SNES ExHiRom repro
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else if (mapping == 3) {
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// A8-A15
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PORTK = (myAddress >> 8) & 0xFF;
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// A16-A22
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PORTL = (myAddress >> 16) & 0xFF;
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// Set A23(PL7) HIGH to enable high part of ExHiROM
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PORTL |= (1 << 7);
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// Set PL7 to inverse of PL6 to reverse P0 and P1 roms
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if (!(((myAddress >> 16) & 0xFF) & 0x40)) {
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// if PL6 is 0 set PL7 to 1
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PORTL |= (1 << 7);
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}
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else if (((myAddress >> 16) & 0xFF) & 0x40) {
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// if PL6 is 1 set PL7 to 0
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PORTL &= ~ (1 << 7);
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}
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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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@ -1,6 +1,6 @@
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/******************************************
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GB MEMORY MODULE
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******************************************/
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//******************************************
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// GB MEMORY MODULE
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//******************************************
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#include "options.h"
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#ifdef enable_GBX
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@ -58,28 +58,30 @@ static const char confMenuItem5[] PROGMEM = "Reset";
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static const char* const menuOptionsConfManual[] PROGMEM = {confMenuItem1, confMenuItem2, confMenuItem3, confMenuItem4, confMenuItem5};
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// Repro menu items
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static const char reproMenuItem1[] PROGMEM = "LoROM repro";
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static const char reproMenuItem2[] PROGMEM = "HiROM repro P0";
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static const char reproMenuItem3[] PROGMEM = "HiROM repro P1";
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static const char reproMenuItem4[] PROGMEM = "Reset";
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static const char* const menuOptionsRepro[] PROGMEM = {reproMenuItem1, reproMenuItem2, reproMenuItem3, reproMenuItem4};
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static const char reproMenuItem1[] PROGMEM = "LoRom (P0)";
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static const char reproMenuItem2[] PROGMEM = "HiRom (P0)";
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static const char reproMenuItem3[] PROGMEM = "ExLoRom (P1)";
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static const char reproMenuItem4[] PROGMEM = "ExHiRom (P1)";
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static const char reproMenuItem5[] PROGMEM = "Reset";
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static const char* const menuOptionsRepro[] PROGMEM = {reproMenuItem1, reproMenuItem2, reproMenuItem3, reproMenuItem4, reproMenuItem5};
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// SNES repro menu
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void reproMenu() {
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// create menu with title and 6 options to choose from
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unsigned char snsRepro;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsRepro, 4);
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snsRepro = question_box(F("Select Repro Type"), menuOptions, 4, 0);
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convertPgm(menuOptionsRepro, 5);
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snsRepro = question_box(F("Select Repro Type"), menuOptions, 5, 0);
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// wait for user choice to come back from the question box menu
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switch (snsRepro)
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{
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#ifdef enable_FLASH
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case 0:
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// LoRom
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display_Clear();
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display_Update();
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hiROM = 0;
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mapping = 0;
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setup_Flash8();
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id_Flash8();
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wait();
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@ -87,9 +89,10 @@ void reproMenu() {
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break;
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case 1:
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// HiRom
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display_Clear();
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display_Update();
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hiROM = 1;
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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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@ -97,9 +100,21 @@ void reproMenu() {
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break;
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case 2:
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// ExLoRom
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display_Clear();
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display_Update();
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hiROM = 4;
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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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mode = mode_FLASH8;
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break;
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case 3:
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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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setup_Flash8();
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id_Flash8();
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wait();
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@ -107,7 +122,7 @@ void reproMenu() {
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break;
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#endif
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case 3:
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case 4:
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resetArduino();
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break;
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}
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@ -1,6 +1,6 @@
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/******************************************
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Options
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******************************************/
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//******************************************
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// OPTIONS
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//******************************************
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// Change mainMenu to snsMenu, mdMenu, n64Menu, gbxMenu, pcsMenu,
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// flashMenu, nesMenu or smsMenu for single slot Cart Readers
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#define startMenu mainMenu
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