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N64: Add error message if eeprom does not return data

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Should prevent problem as described in discussion #857
This commit is contained in:
sanni 2023-10-17 22:07:51 +02:00
parent 2e72842bb1
commit 029c33dfb9
1 changed files with 16 additions and 5 deletions
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21
Cart_Reader/N64.ino
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@ -2256,7 +2256,7 @@ void writeEeprom() {
}
}
void readEepromPageList(byte* output, byte page_number, byte page_count) {
boolean readEepromPageList(byte* output, byte page_number, byte page_count) {
byte command[] = { 0x04, page_number };
// Disable interrupts for more uniform clock pulses
@ -2267,7 +2267,12 @@ void readEepromPageList(byte* output, byte page_number, byte page_count) {
noInterrupts();
sendJoyBus(command, sizeof(command));
// XXX: is it possible to read more than 8 bytes at a time ?
recvJoyBus(output, 8);
if (recvJoyBus(output, 8) > 0) {
// If any missing bytes error out
interrupts();
return 0;
break;
}
interrupts();
if (page_count)
@ -2276,6 +2281,7 @@ void readEepromPageList(byte* output, byte page_number, byte page_count) {
command[1]++;
output += 8;
}
return 1;
}
// Dump Eeprom to SD
@ -2300,14 +2306,19 @@ void readEeprom() {
}
for (int i = 0; i < eepPages; i += sizeof(sdBuffer) / 8) {
readEepromPageList(sdBuffer, i, sizeof(sdBuffer) / 8);
// If any missing bytes error out
if (readEepromPageList(sdBuffer, i, sizeof(sdBuffer) / 8) == 0) {
println_Msg(F(""));
print_STR(error_STR, 0);
println_Msg(F("no data received"));
println_Msg(F(""));
break;
}
// Write 64 pages at once to the SD card
myFile.write(sdBuffer, sizeof(sdBuffer));
}
// Close the file:
myFile.close();
//clear the screen
display_Clear();
print_Msg(F("Saved to "));
print_Msg(folder);
println_Msg(F("/"));