Sweet, don't know if it'll fix my problems but I'll give it a whirl when I get home from work. Thanksrama3 wrote:I haven't tested my latest changes on all configurations but I know it might fix some issues you guys have.
So here you go.
Code: Select all
// PsNee / psxdev.net version // For Arduino and ATtiny // // Quick start: Select your hardware via the #defines, compile + upload the code, install in PSX. // There are some pictures in the development thread ( http://www.psxdev.net/forum/viewtopic.php?f=47&t=1262&start=120 ) // // Arduinos: // - Arduino Pro Mini @8Mhz and @16Mhz (supported, tested) // - Arduino Uno @8Mhz and @16Mhz (supported, tested) // - Arduino Pro Micro has a different pin assignment and needs some easy porting. (ToDo) // - Use #define ARDUINO_BOARD // ATtiny: // - ATtiny85: Should work the same as ATtiny45 (supported, untested) // - ATtiny45: LFUSE 0xE2 HFUSE 0xDF > internal oscillator, full 8Mhz speed (supported, tested) // - ATtiny25: Should work the same as ATtiny45 but doesn't have enough Flash nor RAM for PSNEEDEBUG (supported, untested) // - Use #define ATTINY_X5 // // Some extra libraries might be required, depending on the board / chip used. // PAL PM-41 support isn't implemented yet. (ToDo) // This code defaults to multi-region, meaning it will unlock PAL, NTSC-U and NTSC-J machines. // You can optimize boot times for your console further. See "// inject symbols now" in the main loop. // Choose your hardware! // 2 main branches available: // - ATmega based > easy to use, fast and nice features for development // - ATtiny based > less features, internal clock has 10% variation #define ARDUINO_BOARD //#define ATTINY_X5 //#define PSNEEDEBUG #include <avr/pgmspace.h> #if defined(ARDUINO_BOARD) // board pins (Do not change. Changing pins requires adjustments to MCU I/O definitions) #define sqck 6 // connect to PSX HC-05 SQCK pin #define subq 7 // connect to PSX HC-05 SUBQ pin #define data 8 // connect to point 6 in old modchip diagrams #define gate_wfck 9 // connect to point 5 in old modchip diagrams // MCU I/O definitions #define SUBQPORT PIND // MCU port for the 2 SUBQ sampling inputs #define SQCKBIT 6 // PD6 "SQCK" < Mechacon pin 26 (PU-7 and early PU-8 Mechacons: pin 41) #define SUBQBIT 7 // PD7 "SUBQ" < Mechacon pin 24 (PU-7 and early PU-8 Mechacons: pin 39) #define GATEWFCKPORT PINB // MCU port for the gate input (used for WFCK) #define DATAPORT PORTB // MCU port for the gate input (used for WFCK) #define GATEWFCKBIT 1 // PB1 #define DATABIT 0 // PB0 #elif defined(ATTINY_X5) // ATtiny 25/45/85 // extras #define USINGSOFTWARESERIAL // board pins (Do not change. Changing pins requires adjustments to MCU I/O definitions) #define sqck 0 #define subq 1 #define data 2 #define gate_wfck 4 #define debugtx 3 // MCU I/O definitions #define SUBQPORT PINB #define SQCKBIT 0 #define SUBQBIT 1 #define GATEWFCKPORT PINB #define DATAPORT PORTB #define GATEWFCKBIT 4 #define DATABIT 2 #else #error "Select a board!" #endif #if defined(PSNEEDEBUG) && defined(USINGSOFTWARESERIAL) #include <SoftwareSerial.h> SoftwareSerial mySerial(-1, 3); // RX, TX. (RX -1 = off) #define DEBUG_PRINT(x) mySerial.print(x) #define DEBUG_PRINTHEX(x) mySerial.print(x, HEX) #define DEBUG_PRINTLN(x) mySerial.println(x) #define DEBUG_FLUSH mySerial.flush() #elif defined(PSNEEDEBUG) && !defined(USINGSOFTWARESERIAL) #define DEBUG_PRINT(x) Serial.print(x) #define DEBUG_PRINTHEX(x) Serial.print(x, HEX) #define DEBUG_PRINTLN(x) Serial.println(x) #define DEBUG_FLUSH Serial.flush() #else #define DEBUG_PRINT(x) #define DEBUG_PRINTHEX(x) #define DEBUG_PRINTLN(x) #define DEBUG_FLUSH #endif #define NOP __asm__ __volatile__ ("nop\n\t") // Setup() detects which (of 2) injection methods this PSX board requires, then stores it in pu22mode. boolean pu22mode; //Timing const int delay_between_bits = 4000; // 250 bits/s (microseconds) (ATtiny 8Mhz works from 3950 to 4100) const int delay_between_injections = 90; // 72 in oldcrow. PU-22+ work best with 80 to 100 (milliseconds) // borrowed from AttyNee. Bitmagic to get to the SCEX strings stored in flash (because Harvard architecture) bool readBit(int index, const unsigned char *ByteSet) { int byte_index = index >> 3; byte bits = pgm_read_byte(&(ByteSet[byte_index])); int bit_index = index & 0x7; // same as (index - byte_index<<3) or (index%8) byte mask = 1 << bit_index; return (0 != (bits & mask)); } void inject_SCEX(char region) { //SCEE: 1 00110101 00, 1 00111101 00, 1 01011101 00, 1 01011101 00 //SCEA: 1 00110101 00, 1 00111101 00, 1 01011101 00, 1 01111101 00 //SCEI: 1 00110101 00, 1 00111101 00, 1 01011101 00, 1 01101101 00 //const boolean SCEEData[44] = {1,0,0,1,1,0,1,0,1,0,0,1,0,0,1,1,1,1,0,1,0,0,1,0,1,0,1,1,1,0,1,0,0,1,0,1,0,1,1,1,0,1,0,0}; //const boolean SCEAData[44] = {1,0,0,1,1,0,1,0,1,0,0,1,0,0,1,1,1,1,0,1,0,0,1,0,1,0,1,1,1,0,1,0,0,1,0,1,0,1,1,1,0,1,0,0}; //const boolean SCEIData[44] = {1,0,0,1,1,0,1,0,1,0,0,1,0,0,1,1,1,1,0,1,0,0,1,0,1,0,1,1,1,0,1,0,0,1,0,1,0,1,1,1,0,1,0,0}; static const PROGMEM unsigned char SCEEData[] = {0b01011001, 0b11001001, 0b01001011, 0b01011101, 0b11101010, 0b00000010}; static const PROGMEM unsigned char SCEAData[] = {0b01011001, 0b11001001, 0b01001011, 0b01011101, 0b11111010, 0b00000010}; static const PROGMEM unsigned char SCEIData[] = {0b01011001, 0b11001001, 0b01001011, 0b01011101, 0b11011010, 0b00000010}; // pinMode(data, OUTPUT) is used more than it has to be but that's fine. for (byte bit_counter = 0; bit_counter < 44; bit_counter++) { if (readBit(bit_counter, region == 'e' ? SCEEData : region == 'a' ? SCEAData : SCEIData) == 0) { pinMode(data, OUTPUT); bitClear(GATEWFCKPORT,DATABIT); // data low delayMicroseconds(delay_between_bits); } else { if (pu22mode) { pinMode(data, OUTPUT); unsigned long now = micros(); do { bool wfck_sample = bitRead(GATEWFCKPORT, GATEWFCKBIT); bitWrite(DATAPORT,DATABIT,wfck_sample); // output wfck signal on data pin } while ((micros() - now) < delay_between_bits); } else { // PU-18 or lower mode pinMode(data, INPUT); delayMicroseconds(delay_between_bits); } } } pinMode(data, OUTPUT); bitClear(GATEWFCKPORT,DATABIT); // pull data low delay(delay_between_injections); } //-------------------------------------------------- // Setup //-------------------------------------------------- void setup() { pinMode(data, INPUT); pinMode(gate_wfck, INPUT); pinMode(subq, INPUT); // PSX subchannel bits pinMode(sqck, INPUT); // PSX subchannel clock #if defined(PSNEEDEBUG) && defined(USINGSOFTWARESERIAL) pinMode(debugtx, OUTPUT); // software serial tx pin mySerial.begin(115200); // 13,82 bytes in 12ms, max for softwareserial. (expected data: ~13 bytes / 12ms) #elif defined(PSNEEDEBUG) && !defined(USINGSOFTWARESERIAL) Serial.begin(500000); // 60 bytes in 12ms (expected data: ~26 bytes / 12ms) DEBUG_PRINT("MCU frequency: "); DEBUG_PRINT(F_CPU); DEBUG_PRINTLN(" Hz"); DEBUG_PRINTLN("Waiting for SQCK.."); #endif #if defined(ARDUINO_BOARD) pinMode(LED_BUILTIN, OUTPUT); // Blink on injection / debug. digitalWrite(LED_BUILTIN, HIGH); // mark begin of setup #endif // wait for console power on and stable signals while (!digitalRead(sqck)); while (!digitalRead(gate_wfck)); // Board detection // // GATE: __----------------------- // this is a PU-7 .. PU-20 board! // // WFCK: __-_-_-_-_-_-_-_-_-_-_-_- // this is a PU-22 or newer board! unsigned int highs, lows = 0; unsigned long now = millis(); do { if (digitalRead(gate_wfck) == 1) highs++; if (digitalRead(gate_wfck) == 0) lows++; delayMicroseconds(200); // good for ~5000 reads in 1s } while ((millis() - now) < 1000); // sample 1s // typical readouts // PU-22: highs: 2449 lows: 2377 if (lows > 100) { pu22mode = 1; } else { pu22mode = 0; } #ifdef ATTINY_X5 DEBUG_PRINT("m "); DEBUG_PRINTLN(pu22mode); #else DEBUG_PRINT("highs: "); DEBUG_PRINT(highs); DEBUG_PRINT(" lows: "); DEBUG_PRINTLN(lows); DEBUG_PRINT("pu22mode: "); DEBUG_PRINTLN(pu22mode); // Power saving // Disable the ADC by setting the ADEN bit (bit 7) of the ADCSRA register to zero. ADCSRA = ADCSRA & B01111111; // Disable the analog comparator by setting the ACD bit (bit 7) of the ACSR register to one. ACSR = B10000000; // Disable digital input buffers on all analog input pins by setting bits 0-5 of the DIDR0 register to one. DIDR0 = DIDR0 | B00111111; #endif #if defined(ARDUINO_BOARD) digitalWrite(LED_BUILTIN, LOW); // setup complete #endif DEBUG_FLUSH; // empty serial transmit buffer } void loop() { static byte scbuf [12] = { 0 }; // We will be capturing PSX "SUBQ" packets, there are 12 bytes per valid read. static unsigned int timeout_clock_counter = 0; static byte bitbuf = 0; // SUBQ bit storage static bool sample = 0; static byte bitpos = 0; byte scpos = 0; // scbuf position noInterrupts(); // start critical section start: // Capture 8 bits for 12 runs > complete SUBQ transmission bitpos = 0; for (; bitpos<8; bitpos++) { while (bitRead(SUBQPORT, SQCKBIT) == 1){ // wait for clock to go low.. // a timeout resets the 12 byte stream in case the PSX sends malformatted clock pulses, as happens on bootup timeout_clock_counter++; if (timeout_clock_counter > 1000){ scpos = 0; // reset SUBQ packet stream timeout_clock_counter = 0; bitbuf = 0; goto start; } } // wait for clock to go high.. while ((bitRead(SUBQPORT, SQCKBIT)) == 0); sample = bitRead(SUBQPORT, SUBQBIT); bitbuf |= sample << bitpos; timeout_clock_counter = 0; // no problem with this bit } // one byte done scbuf[scpos] = bitbuf; scpos++; bitbuf = 0; // repeat for all 12 bytes if (scpos < 12){ goto start; } interrupts(); // end critical section // log SUBQ packets. We only have 12ms to get the logs written out. Slower MCUs get less formatting. #ifdef ATTINY_X5 if (!(scbuf[0] == 0 && scbuf[1] == 0 && scbuf[2] == 0 && scbuf[3] == 0)){ // a bad sector read is all 0 except for the CRC fields. Don't log it. for (int i = 0; i<12;i++) { if (scbuf[i] < 0x10) {DEBUG_PRINT("0");} // padding DEBUG_PRINTHEX(scbuf[i]); } DEBUG_PRINTLN(""); } #else if (!(scbuf[0] == 0 && scbuf[1] == 0 && scbuf[2] == 0 && scbuf[3] == 0)){ for (int i = 0; i<12;i++) { if (scbuf[i] < 0x10) {DEBUG_PRINT("0");} // padding DEBUG_PRINTHEX(scbuf[i]); DEBUG_PRINT(" "); } DEBUG_PRINTLN(""); } #endif // check if read head is in wobble area // We only want to unlock game discs (0x41) and only if the read head is in the outer TOC area. // We want to see a TOC sector repeatedly before injecting (helps with timing and marginal lasers). // All this logic is because we don't know if the HC-05 is actually processing a getSCEX() command. // Hysteresis is used because older drives exhibit more variation in read head positioning. // While the laser lens moves to correct for the error, they can pick up a few TOC sectors. static byte hysteresis = 0; if ( (scbuf[0] == 0x41 && scbuf[1] == 0x00 && scbuf[6] == 0x00) && // [0] = 41 means psx game disk. the other 2 checks are garbage protection (scbuf[2] == 0xA0 || scbuf[2] == 0xA1 || scbuf[2] == 0xA2 || // if [2] = A0, A1, A2 .. (scbuf[2] == 0x01 && (scbuf[3] >= 0x98 || scbuf[3] <= 0x02) ) ) // .. or = 01 but then [3] is either > 98 or < 02 ) { hysteresis++; } else if ( hysteresis > 0 && ((scbuf[0] == 0x01 || scbuf[0] == 0x41) && (scbuf[1] == 0x00 /*|| scbuf[1] == 0x01*/) && scbuf[6] == 0x00) ) { // This CD has the wobble into CD-DA space. (started at 0x41, then went into 0x01) hysteresis++; } else if (hysteresis > 0) { hysteresis--; // None of the above. Initial detection was noise. Decrease the counter. } // hysteresis value "optimized" using very worn but working drive on ATmega328 @ 16Mhz // should be fine on other MCUs and speeds, as the PSX dictates SUBQ rate if (hysteresis >= 14){ // If the read head is still here after injection, resending should be quick. // Hysteresis naturally goes to 0 otherwise (the read head moved). hysteresis = 11; #ifdef ATTINY_X5 DEBUG_PRINTLN("!"); #else DEBUG_PRINTLN("INJECT!INJECT!INJECT!INJECT!INJECT!INJECT!"); #endif #if defined(ARDUINO_BOARD) digitalWrite(LED_BUILTIN, HIGH); #endif pinMode(data, OUTPUT); digitalWrite(data, 0); // pull data low if (!pu22mode){ pinMode(gate_wfck, OUTPUT); digitalWrite(gate_wfck, 0); } // HC-05 waits for a bit of silence (pin low) before it begins decoding. delay(delay_between_injections); // inject symbols now. 2 x 3 runs seems optimal to cover all boards for (byte loop_counter = 0; loop_counter < 2; loop_counter++) { inject_SCEX('e'); // e = SCEE, a = SCEA, i = SCEI inject_SCEX('a'); // injects all 3 regions by default inject_SCEX('i'); // optimize boot time by sending only your console region letter (all 3 times per loop) } if (!pu22mode){ pinMode(gate_wfck, INPUT); // high-z the line, we're done } pinMode(data, INPUT); // high-z the line, we're done #if defined(ARDUINO_BOARD) digitalWrite(LED_BUILTIN, LOW); #endif } // keep catching SUBQ packets forever }
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