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Merge pull request #928 from smesgr9000/master

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support CLOCKGEN for C64
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sanni 2024-04-22 12:41:34 +02:00 committed by GitHub
commit 5a79277a27
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1 changed files with 60 additions and 63 deletions
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123
Cart_Reader/C64.ino
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@ -179,8 +179,8 @@ void setup_C64() {
DDRL = 0xFF;
// Set Control Pins to Output
// /RST(PH0) PHI2(PH1) /GAME(PH3) /EXROM(PH4) ---(PH5) R/W(PH6)
DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
// /RST(PH0) /GAME(PH3) /EXROM(PH4) ---(PH5) R/W(PH6)
DDRH |= (1 << 0) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
// Set TIME(PJ0) to Output (UNUSED)
DDRJ |= (1 << 0);
@ -189,8 +189,8 @@ void setup_C64() {
DDRC = 0x00;
// Setting Control Pins to HIGH
// /RST(PH0) PHI2(PH1) /GAME(PH3) /EXROM(PH4) ---(PH5) R/W(PH6)
PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
// /RST(PH0) /GAME(PH3) /EXROM(PH4) ---(PH5) R/W(PH6)
PORTH |= (1 << 0) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
// Set /GAME(PH3) and /EXROM(PH4) to LOW
PORTH &= ~(1 << 3) & ~(1 << 4);
@ -205,6 +205,32 @@ void setup_C64() {
PORTA = 0xFF;
PORTJ |= (1 << 0); // TIME(PJ0)
#ifdef ENABLE_CLOCKGEN
// Adafruit Clock Generator
initializeClockOffset();
if (!i2c_found) {
display_Clear();
print_FatalError(F("Clock Generator not found"));
}
// Set Eeprom clock to 1Mhz
clockgen.set_freq(100000000ULL, SI5351_CLK1);
// Start outputting Eeprom clock
clockgen.output_enable(SI5351_CLK1, 1); // Eeprom clock
// Wait for clock generator
clockgen.update_status();
#else
// Set PHI2(PH1 to Output
DDRH |= (1 << 1);
// Setting Control Pins to HIGH for PHI2(PH1)
PHI2_ENABLE;
#endif
checkStatus_C64();
strcpy(romName, "C64");
@ -982,31 +1008,40 @@ setrom:
//******************************************
// SET PORT STATE
//******************************************
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
void println_C64_PortState(int state)
{
display_Clear();
print_Msg(F("Port State: "));
println_Msg(state);
switch (state) {
case 0:
println_Msg(F("EXROM LOW/GAME LOW"));
break;
case 1:
println_Msg(F("EXROM LOW/GAME HIGH"));
break;
case 2:
println_Msg(F("EXROM HIGH/GAME LOW"));
break;
case 3:
println_Msg(F("EXROM HIGH/GAME HIGH"));
break;
}
println_Msg(FS(FSTRING_EMPTY));
println_Msg(F("Press to Change"));
println_Msg(F("Hold to Select"));
display_Update();
}
#endif
void setPorts_C64()
{
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
uint8_t b = 0;
int i = 0;
display_Clear();
print_Msg(F("Port State: "));
println_Msg(i);
if (i == 0) {
println_Msg(F("EXROM LOW/GAME LOW"));
}
else if (i == 1) {
println_Msg(F("EXROM LOW/GAME HIGH"));
}
else if (i == 2) {
println_Msg(F("EXROM HIGH/GAME LOW"));
}
else if (i == 3) {
println_Msg(F("EXROM HIGH/GAME HIGH"));
}
println_Msg(FS(FSTRING_EMPTY));
println_Msg(F("Press to Change"));
println_Msg(F("Hold to Select"));
display_Update();
println_C64_PortState(i);
while (1) {
b = checkButton();
@ -1016,26 +1051,7 @@ void setPorts_C64()
else
i--;
display_Clear();
print_Msg(F("Port State: "));
println_Msg(i);
if (i == 0) {
println_Msg(F("EXROM LOW/GAME LOW"));
}
else if (i == 1) {
println_Msg(F("EXROM LOW/GAME HIGH"));
}
else if (i == 2) {
println_Msg(F("EXROM HIGH/GAME LOW"));
}
else if (i == 3) {
println_Msg(F("EXROM HIGH/GAME HIGH"));
}
println_Msg(FS(FSTRING_EMPTY));
println_Msg(F("Press to Change"));
println_Msg(F("Hold to Select"));
display_Update();
println_C64_PortState(i);
}
if (b == 1) { // Next (press)
if (i == 3)
@ -1043,26 +1059,7 @@ void setPorts_C64()
else
i++;
display_Clear();
print_Msg(F("Port State: "));
println_Msg(i);
if (i == 0) {
println_Msg(F("EXROM LOW/GAME LOW"));
}
else if (i == 1) {
println_Msg(F("EXROM LOW/GAME HIGH"));
}
else if (i == 2) {
println_Msg(F("EXROM HIGH/GAME LOW"));
}
else if (i == 3) {
println_Msg(F("EXROM HIGH/GAME HIGH"));
}
println_Msg(FS(FSTRING_EMPTY));
println_Msg(F("Press to Change"));
println_Msg(F("Hold to Select"));
display_Update();
println_C64_PortState(i);
}
if (b == 3) { // Long Press - Execute (hold)
newc64port = i;