mirror of
https://github.com/sanni/cartreader.git
synced 2024-12-27 05:21:53 +01:00
327 lines
7.6 KiB
C++
327 lines
7.6 KiB
C++
//******************************************
|
|
// RCA STUDIO II MODULE
|
|
//******************************************
|
|
#ifdef ENABLE_RCA
|
|
// RCA Studio II
|
|
// Cartridge Pinout
|
|
// 22P 3.96mm pitch connector
|
|
//
|
|
// FRONT
|
|
// +-------+
|
|
// D7 -| 1 |
|
|
// D6 -| 2 |
|
|
// D5 -| 3 |
|
|
// D4 -| 4 |
|
|
// D3 -| 5 |
|
|
// ROM_DISABLE -| 6 |
|
|
// GND -| 7 |
|
|
// D2 -| 8 |
|
|
// D1 -| 9 |
|
|
// D0 -| 10 |
|
|
// A0 -| 11 |
|
|
// A1 -| 12 |
|
|
// A2 -| 13 |
|
|
// A3 -| 14 |
|
|
// VCC(+5V) -| 15 |
|
|
// A4 -| 16 |
|
|
// A5 -| 17 |
|
|
// A6 -| 18 |
|
|
// TPA -| 19 |
|
|
// A7 -| 20 |
|
|
// /MRD -| 21 |
|
|
// ROMCS -| 22 |
|
|
// +-------+
|
|
//
|
|
// BACK SIDE
|
|
// +-------------------------------------------------------------------------------------------+
|
|
// LEFT | | RIGHT
|
|
// | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 |
|
|
// +-------------------------------------------------------------------------------------------+
|
|
// D7 D6 D5 D4 D3 DIS GND D2 D1 D0 A0 A1 A2 A3 +5V A4 A5 A6 TPA A7 /MRD CS
|
|
//
|
|
// FRONT SIDE
|
|
|
|
// CONTROL PINS:
|
|
// /MRD(PH3) - SNES /CS
|
|
// TPA(PH6) - SNES /RD
|
|
|
|
//******************************************
|
|
// VARIABLES
|
|
//******************************************
|
|
byte RCA[] = {1,2};
|
|
byte rcalo = 0; // Lowest Entry
|
|
byte rcahi = 1; // Highest Entry
|
|
|
|
byte rcasize;
|
|
byte newrcasize;
|
|
|
|
// EEPROM MAPPING
|
|
// 08 ROM SIZE
|
|
|
|
//******************************************
|
|
// MENU
|
|
//******************************************
|
|
// Base Menu
|
|
static const char* const menuOptionsRCA[] PROGMEM = { FSTRING_SELECT_CART, FSTRING_READ_ROM, FSTRING_SET_SIZE, FSTRING_RESET };
|
|
|
|
void rcaMenu()
|
|
{
|
|
convertPgm(menuOptionsRCA, 4);
|
|
uint8_t mainMenu = question_box(F("RCA STUDIO II MENU"), menuOptions, 4, 0);
|
|
|
|
switch (mainMenu)
|
|
{
|
|
case 0:
|
|
// Select Cart
|
|
setCart_RCA();
|
|
setup_RCA();
|
|
break;
|
|
|
|
case 1:
|
|
// Read ROM
|
|
sd.chdir("/");
|
|
readROM_RCA();
|
|
sd.chdir("/");
|
|
break;
|
|
|
|
case 2:
|
|
// Set Size
|
|
setROMSize_RCA();
|
|
break;
|
|
|
|
case 3:
|
|
// reset
|
|
resetArduino();
|
|
break;
|
|
}
|
|
}
|
|
|
|
//******************************************
|
|
// SETUP
|
|
//******************************************
|
|
|
|
void setup_RCA()
|
|
{
|
|
// Request 5V
|
|
setVoltage(VOLTS_SET_5V);
|
|
|
|
// Set Address Pins to Output
|
|
// RCA Studio II uses A0-A7 [A8-A23 UNUSED]
|
|
//A0-A7
|
|
DDRF = 0xFF;
|
|
//A8-A15
|
|
DDRK = 0xFF;
|
|
//A16-A23
|
|
DDRL = 0xFF;
|
|
|
|
// Set Control Pins to Output
|
|
// ---(PH0) ---(PH1) /MRD(PH3) ---(PH4) ---(PH5) TPA(PH6)
|
|
DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
|
|
|
|
// Set TIME(PJ0) to Output (UNUSED)
|
|
DDRJ |= (1 << 0);
|
|
|
|
// Set Pins (D0-D7) to Input
|
|
DDRC = 0x00;
|
|
|
|
// Setting Control Pins to HIGH
|
|
// ---(PH0) ---(PH1) /MRD(PH3) ---(PH4) ---(PH5) TPA(PH6)
|
|
PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
|
|
|
|
// Set Unused Data Pins (PA0-PA7) to Output
|
|
DDRA = 0xFF;
|
|
|
|
// Set Unused Pins HIGH
|
|
PORTA = 0xFF;
|
|
PORTK = 0xFF; // A8-A15
|
|
PORTL = 0xFF; // A16-A23
|
|
PORTJ |= (1 << 0); // TIME(PJ0)
|
|
|
|
checkStatus_RCA();
|
|
strcpy(romName, "RCA");
|
|
|
|
mode = CORE_RCA;
|
|
}
|
|
|
|
//******************************************
|
|
// READ FUNCTIONS
|
|
//******************************************
|
|
|
|
uint8_t readData_RCA(uint16_t addr)
|
|
{
|
|
// Setup TPA + /MRD
|
|
PORTH &= ~(1 << 6); // TPA LOW
|
|
delayMicroseconds(4);
|
|
PORTH |= (1 << 3); // /MRD HIGH;
|
|
delayMicroseconds(4);
|
|
|
|
// Set HIGH Address
|
|
PORTF = (addr >> 8) & 0xFF;
|
|
delayMicroseconds(4);
|
|
|
|
// Latch HIGH Address
|
|
PORTH |= (1 << 6); // TPA HIGH
|
|
delayMicroseconds(4);
|
|
PORTH &= ~(1 << 3); // /MRD LOW
|
|
delayMicroseconds(4);
|
|
|
|
// Switch TPA LOW
|
|
PORTH &= ~(1 << 6); // TPA LOW
|
|
delayMicroseconds(4);
|
|
|
|
// Set LOW Address
|
|
PORTF = addr & 0xFF;
|
|
delayMicroseconds(4);
|
|
uint8_t ret = PINC;
|
|
// Reset /MRD
|
|
PORTH |= (1 << 3); // /MRD HIGH;
|
|
|
|
return ret;
|
|
}
|
|
|
|
void readSegment_RCA(uint16_t startaddr, uint16_t endaddr)
|
|
{
|
|
for (uint16_t addr = startaddr; addr < endaddr; addr += 512) {
|
|
for (int w = 0; w < 512; w++) {
|
|
uint8_t temp = readData_RCA(addr + w);
|
|
sdBuffer[w] = temp;
|
|
}
|
|
myFile.write(sdBuffer, 512);
|
|
}
|
|
}
|
|
|
|
//******************************************
|
|
// READ ROM
|
|
//******************************************
|
|
|
|
void readROM_RCA()
|
|
{
|
|
createFolderAndOpenFile("RCA", "ROM", romName, "bin");
|
|
|
|
readSegment_RCA(0x0400,0x0600); // 512B
|
|
if (rcasize > 0)
|
|
readSegment_RCA(0x0600,0x0800); // +512B = 1K
|
|
myFile.close();
|
|
|
|
printCRC(fileName, NULL, 0);
|
|
|
|
println_Msg(FS(FSTRING_EMPTY));
|
|
print_STR(press_button_STR, 1);
|
|
display_Update();
|
|
wait();
|
|
}
|
|
|
|
//******************************************
|
|
// ROM SIZE
|
|
//******************************************
|
|
|
|
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
|
|
void printRomSize_RCA(int index)
|
|
{
|
|
display_Clear();
|
|
print_Msg(FS(FSTRING_ROM_SIZE));
|
|
println_Msg(RCA[index]);
|
|
}
|
|
#endif
|
|
|
|
void setROMSize_RCA()
|
|
{
|
|
byte newrcasize;
|
|
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
|
|
display_Clear();
|
|
if (rcalo == rcahi)
|
|
newrcasize = rcalo;
|
|
else {
|
|
newrcasize = navigateMenu(rcalo, rcahi, &printRomSize_RCA);
|
|
|
|
display.setCursor(0, 56); // Display selection at bottom
|
|
}
|
|
print_Msg(FS(FSTRING_ROM_SIZE));
|
|
print_Msg(RCA[newrcasize]);
|
|
println_Msg(F("KB"));
|
|
display_Update();
|
|
delay(1000);
|
|
#else
|
|
if (rcalo == rcahi)
|
|
newrcasize = rcalo;
|
|
else {
|
|
setrom:
|
|
String sizeROM;
|
|
for (int i = 0; i < (rcahi - rcalo + 1); i++) {
|
|
Serial.print(F("Select ROM Size: "));
|
|
Serial.print(i);
|
|
Serial.print(F(" = "));
|
|
Serial.print(RCA[i + rcalo]);
|
|
Serial.println(F("KB"));
|
|
}
|
|
Serial.print(F("Enter ROM Size: "));
|
|
while (Serial.available() == 0) {}
|
|
sizeROM = Serial.readStringUntil('\n');
|
|
Serial.println(sizeROM);
|
|
newrcasize = sizeROM.toInt() + rcalo;
|
|
if (newrcasize > rcahi) {
|
|
Serial.println(F("SIZE NOT SUPPORTED"));
|
|
Serial.println(FS(FSTRING_EMPTY));
|
|
goto setrom;
|
|
}
|
|
}
|
|
Serial.print(F("ROM Size = "));
|
|
Serial.print(RCA[newrcasize]);
|
|
Serial.println(F("KB"));
|
|
#endif
|
|
EEPROM_writeAnything(8, newrcasize);
|
|
rcasize = newrcasize;
|
|
}
|
|
|
|
void checkStatus_RCA()
|
|
{
|
|
EEPROM_readAnything(8, rcasize);
|
|
if (rcasize > rcahi) {
|
|
rcasize = 1; // default 1024B
|
|
EEPROM_writeAnything(8, rcasize);
|
|
}
|
|
|
|
#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
|
|
display_Clear();
|
|
println_Msg(F("RCA STUDIO II"));
|
|
println_Msg(FS(FSTRING_CURRENT_SETTINGS));
|
|
println_Msg(FS(FSTRING_EMPTY));
|
|
print_Msg(FS(FSTRING_ROM_SIZE));
|
|
print_Msg(RCA[rcasize] * 512);
|
|
println_Msg(F("B"));
|
|
display_Update();
|
|
wait();
|
|
#else
|
|
Serial.print(FS(FSTRING_ROM_SIZE));
|
|
Serial.print(RCA[rcasize] * 512);
|
|
Serial.println(F("B"));
|
|
Serial.println(FS(FSTRING_EMPTY));
|
|
#endif
|
|
}
|
|
|
|
//******************************************
|
|
// CART SELECT CODE
|
|
//******************************************
|
|
|
|
void setCart_RCA()
|
|
{
|
|
//go to root
|
|
sd.chdir();
|
|
|
|
byte gameSize;
|
|
|
|
// Select starting letter
|
|
//byte myLetter = starting_letter();
|
|
|
|
// Open database
|
|
if (myFile.open("rcacart.txt", O_READ)) {
|
|
// seek_first_letter_in_database(myFile, myLetter);
|
|
|
|
if(checkCartSelection(myFile, &readDataLineSingleDigit, &gameSize)) {
|
|
EEPROM_writeAnything(8, gameSize);
|
|
}
|
|
} else {
|
|
print_FatalError(FS(FSTRING_DATABASE_FILE_NOT_FOUND));
|
|
}
|
|
}
|
|
#endif |