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Working with 4mbit hardcoded

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This commit is contained in:
Roger Braunstein 2024-06-28 19:31:14 -07:00
parent 88564c21da
commit 6fc56b5ed6
1 changed files with 65 additions and 17 deletions
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82
Cart_Reader/PCE.ino
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@ -70,7 +70,7 @@ static const char *const menuOptionspceTC[] PROGMEM = { FSTRING_READ_ROM, FSTRIN
#ifdef ENABLE_FLASH #ifdef ENABLE_FLASH
// Flash repro menu items // Flash repro menu items
static const char menuOptionspceFlash1[] PROGMEM = "Erase"; static const char menuOptionspceFlash1[] PROGMEM = "Flash (PCE)";
static const char *const menuOptionspceFlash[] PROGMEM = { menuOptionspceFlash1, FSTRING_RESET }; static const char *const menuOptionspceFlash[] PROGMEM = { menuOptionspceFlash1, FSTRING_RESET };
#endif #endif
@ -827,27 +827,75 @@ void read_rom_PCE(void) {
wait(); wait();
} }
void flash_erase_PCE() { #ifdef ENABLE_FLASH
// Write flashrom
void flash_PCE() {
// TODO identify size by ID?
flashSize = 524288; //4Mbit SST39SF040
filePath[0] = '\0';
sd.chdir("/");
fileBrowser(FS(FSTRING_SELECT_FILE));
display_Clear(); display_Clear();
pin_read_write_PCE();
data_output_PCE();
PORTH |= (1 << 3); // RD HIGH
write_byte_PCE(0x5555, 0xAA);
write_byte_PCE(0x2AAA, 0x55);
write_byte_PCE(0x5555, 0x80);
write_byte_PCE(0x5555, 0xAA);
write_byte_PCE(0x2AAA, 0x55);
write_byte_PCE(0x5555, 0x10);
// TSCE = 100ms
delay(100);
pin_init_PCE(); if (openFlashFile()) {
println_Msg(FS(FSTRING_OK)); println_Msg(F("Erasing..."));
print_STR(press_button_STR, 1); display_Update();
pin_read_write_PCE();
data_output_PCE();
PORTH |= (1 << 3); // RD HIGH
write_byte_PCE(0x5555, 0xAA);
write_byte_PCE(0x2AAA, 0x55);
write_byte_PCE(0x5555, 0x80);
write_byte_PCE(0x5555, 0xAA);
write_byte_PCE(0x2AAA, 0x55);
write_byte_PCE(0x5555, 0x10);
// TSCE = 100ms
delay(100);
pin_init_PCE();
println_Msg(F("Writing flash"));
display_Update();
pin_read_write_PCE();
data_output_PCE();
PORTH |= (1 << 3); // RD HIGH
uint32_t processedProgressBar = 0;
uint32_t totalProgressBar = (uint32_t)fileSize;
draw_progressbar(0, totalProgressBar);
for (unsigned long currAddr = 0; currAddr < fileSize; currAddr += 512) {
myFile.read(sdBuffer, 512);
if (currAddr % 4096 == 0) {
blinkLED();
}
for (int currByte = 0; currByte < 512; currByte++) {
write_byte_PCE(0x5555, 0xAA);
write_byte_PCE(0x2AAA, 0x55);
write_byte_PCE(0x5555, 0xA0);
write_byte_PCE(currAddr + currByte, sdBuffer[currByte]);
// TODO could use toggle bit or data complement
// TBP = 20us
delayMicroseconds(20);
}
// update progress bar
processedProgressBar += 512;
draw_progressbar(processedProgressBar, totalProgressBar);
}
myFile.close();
pin_init_PCE();
println_Msg(FS(FSTRING_OK));
}
display_Update(); display_Update();
wait(); wait();
} }
#endif
// PC Engine Menu // PC Engine Menu
void pceMenu() { void pceMenu() {
@ -928,7 +976,7 @@ void pceMenu() {
switch (mainMenu) { switch (mainMenu) {
case 0: case 0:
// Format/erase // Format/erase
flash_erase_PCE(); flash_PCE();
break; break;
case 1: case 1: