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Add option to force A23 to high while flashing HiROM repros

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A23-> low enables P0 and A23->high enables P1 flashrom.
This commit is contained in:
sanni 2021-05-12 17:42:49 +02:00
parent 91be66a89b
commit c343094966
2 changed files with 80 additions and 29 deletions
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22
Cart_Reader/FLASH.ino
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@ -16,7 +16,7 @@ unsigned long time;
unsigned long blank;
unsigned long sectorSize;
uint16_t bufferSize;
boolean hiROM = 1;
byte hiROM = 1;
/******************************************
Menu
@ -746,16 +746,22 @@ void dataIn16() {
*****************************************/
void writeByte_Flash(unsigned long myAddress, byte myData) {
PORTF = myAddress & 0xFF;
if (hiROM) {
if (hiROM == 1) {
PORTK = (myAddress >> 8) & 0xFF;
PORTL = (myAddress >> 16) & 0xFF;
}
else {
else if (hiROM == 0) {
PORTK = (myAddress >> 8) & 0x7F;
// Set A15(PK7) HIGH to disable SRAM
PORTK |= (1 << 7);
PORTL = (myAddress >> 15) & 0xFF;
}
if (hiROM == 4) {
PORTK = (myAddress >> 8) & 0xFF;
PORTL = (myAddress >> 16) & 0xFF;
// Set A23(PL7) HIGH to enable high part of ExHiROM
PORTL |= (1 << 7);
}
PORTC = myData;
// Arduino running at 16Mhz -> one nop = 62.5ns
@ -777,16 +783,22 @@ void writeByte_Flash(unsigned long myAddress, byte myData) {
byte readByte_Flash(unsigned long myAddress) {
PORTF = myAddress & 0xFF;
if (hiROM) {
if (hiROM == 1) {
PORTK = (myAddress >> 8) & 0xFF;
PORTL = (myAddress >> 16) & 0xFF;
}
else {
else if (hiROM == 0) {
PORTK = (myAddress >> 8) & 0x7F;
// Set A15(PK7) HIGH to disable SRAM
PORTK |= (1 << 7);
PORTL = (myAddress >> 15) & 0xFF;
}
else if (hiROM == 4) {
PORTK = (myAddress >> 8) & 0xFF;
PORTL = (myAddress >> 16) & 0xFF;
// Set A23(PL7) HIGH to enable high part of ExHiROM
PORTL |= (1 << 7);
}
// Arduino running at 16Mhz -> one nop = 62.5ns
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");

87
Cart_Reader/SNES.ino
View File

@ -35,10 +35,9 @@ boolean altconf = 0;
static const char snsMenuItem1[] PROGMEM = "Super Nintendo";
static const char snsMenuItem2[] PROGMEM = "NPower SF Memory";
static const char snsMenuItem3[] PROGMEM = "Satellaview BS-X";
static const char snsMenuItem4[] PROGMEM = "HiROM repro";
static const char snsMenuItem5[] PROGMEM = "LoROM repro";
static const char snsMenuItem6[] PROGMEM = "Reset";
static const char* const menuOptionsSNS[] PROGMEM = {snsMenuItem1, snsMenuItem2, snsMenuItem3, snsMenuItem4, snsMenuItem5, snsMenuItem6};
static const char snsMenuItem4[] PROGMEM = "Flash repro";
static const char snsMenuItem5[] PROGMEM = "Reset";
static const char* const menuOptionsSNS[] PROGMEM = {snsMenuItem1, snsMenuItem2, snsMenuItem3, snsMenuItem4, snsMenuItem5};
// SNES menu items
static const char SnesMenuItem1[] PROGMEM = "Read Rom";
@ -58,13 +57,69 @@ static const char confMenuItem4[] PROGMEM = "6MB ExRom 256K Sram";
static const char confMenuItem5[] PROGMEM = "Reset";
static const char* const menuOptionsConfManual[] PROGMEM = {confMenuItem1, confMenuItem2, confMenuItem3, confMenuItem4, confMenuItem5};
// Repro menu items
static const char reproMenuItem1[] PROGMEM = "LoROM repro";
static const char reproMenuItem2[] PROGMEM = "HiROM repro P0";
static const char reproMenuItem3[] PROGMEM = "HiROM repro P1";
static const char reproMenuItem4[] PROGMEM = "Reset";
static const char* const menuOptionsRepro[] PROGMEM = {reproMenuItem1, reproMenuItem2, reproMenuItem3, reproMenuItem4};
// SNES repro menu
void reproMenu() {
// create menu with title and 6 options to choose from
unsigned char snsRepro;
// Copy menuOptions out of progmem
convertPgm(menuOptionsRepro, 4);
snsRepro = question_box(F("Select Repro Type"), menuOptions, 4, 0);
// wait for user choice to come back from the question box menu
switch (snsRepro)
{
#ifdef enable_FLASH
case 0:
display_Clear();
display_Update();
hiROM = 0;
setup_Flash8();
id_Flash8();
wait();
mode = mode_FLASH8;
break;
case 1:
display_Clear();
display_Update();
hiROM = 1;
setup_Flash8();
id_Flash8();
wait();
mode = mode_FLASH8;
break;
case 2:
display_Clear();
display_Update();
hiROM = 4;
setup_Flash8();
id_Flash8();
wait();
mode = mode_FLASH8;
break;
#endif
case 3:
resetArduino();
break;
}
}
// SNES start menu
void snsMenu() {
// create menu with title and 6 options to choose from
unsigned char snsCart;
// Copy menuOptions out of progmem
convertPgm(menuOptionsSNS, 6);
snsCart = question_box(F("Select Cart Type"), menuOptions, 6, 0);
convertPgm(menuOptionsSNS, 5);
snsCart = question_box(F("Select Cart Type"), menuOptions, 5, 0);
// wait for user choice to come back from the question box menu
switch (snsCart)
@ -94,27 +149,11 @@ void snsMenu() {
#ifdef enable_FLASH
case 3:
display_Clear();
display_Update();
hiROM = 1;
setup_Flash8();
id_Flash8();
wait();
mode = mode_FLASH8;
break;
case 4:
display_Clear();
display_Update();
hiROM = 0;
setup_Flash8();
id_Flash8();
wait();
mode = mode_FLASH8;
reproMenu();
break;
#endif
case 5:
case 4:
resetArduino();
break;
}