Ad bios patch 102A, and correct some images.

PSNee/PSNee/BIOS_patching.h

@@ -1,7 +1,7 @@
 
 #pragma once
 
-#if defined(SCPH_102) || defined(SCPH_100) || defined(SCPH_7000_9000) || defined(SCPH_5500) || defined(SCPH_3500_5000) || defined(SCPH_3000) || defined(SCPH_1000)
+#if defined(SCPH_102A) || defined(SCPH_102) || defined(SCPH_100) || defined(SCPH_7000_9000) || defined(SCPH_5500) || defined(SCPH_3500_5000) || defined(SCPH_3000) || defined(SCPH_1000)
 
 
 void Timer_Start(void);
@@ -9,11 +9,16 @@ void Timer_Stop(void);
 
 extern volatile uint8_t count_isr;
 extern volatile uint32_t microsec;
+extern volatile uint32_t millisec;
 
 
 volatile uint8_t impulse = 0;
 volatile uint8_t patch = 0;
 
+#endif
+
+#if defined(SCPH_102) || defined(SCPH_100) || defined(SCPH_7000_9000) || defined(SCPH_5500) || defined(SCPH_3500_5000) || defined(SCPH_3000) || defined(SCPH_1000)
+
 ISR(PIN_AX_INTERRUPT_VECTOR) {
 	impulse++;                         
 	if (impulse == TRIGGER){           // If impulse reaches the value defined by TRIGGER, the following actions are performed:
@@ -97,5 +102,46 @@ void Bios_Patching(){
 
 	#endif
 }
+#endif
+
+#ifdef SCPH_102A
+void Bios_Patching_SCPH_102A() {
+
+  PIN_AX_INPUT;                          //A18
+  PIN_DX_INPUT;                          //D2
+
+  Timer_Start();
+  while (millisec < SATBILIZATIONPOINT);               // this is right after SQCK appeared. wait a little to avoid noise
+  while (PIN_AX_READ != 0);
+  Timer_Stop();
+ // {
+  //  ;                                   //wait for stage 1 A18 pulse
+ // }
+
+  Timer_Start();
+  while (millisec < DELAYPOINT);       //wait through stage 1 of A18 activity delay(1350)
+  Timer_Stop();
+
+  //noInterrupts();                       // start critical section
+  Timer_Start();
+  while (PIN_AX_READ != 0);
+  {
+    ;                                   //wait for priming A18 pulse
+  }
+  //while (microsec < HOLD );      // delayMicroseconds(17) min 13us max 17us for 16Mhz ATmega (maximize this when tuning!)
+  HOLD;
+  PIN_DX_CLEAR;                            // store a low
+  PIN_DX_OUTPUT;                           // D2 = output. drags line low now
+  PATCHING;
+  //while (microsec < PATCHING );  // delayMicroseconds(4) min 2us for 16Mhz ATmega, 8Mhz requires 3us (minimize this when tuning, after maximizing first us delay!)
+  PIN_DX_INPUT;                            // D2 = input / high-z
+  //interrupts();                         // end critical section
+  Timer_Stop();
+                                          // not necessary but I want to make sure these pins are now high-z again
+  PIN_AX_INPUT;
+  PIN_DX_INPUT;
+}
+
 
 #endif
+

PSNee/PSNee/MCU.h

@@ -158,7 +158,7 @@
   #endif
 
   // Handling the BIOS patch
-  #if defined(SCPH_102) || defined(SCPH_100) || defined(SCPH_7000_9000) || defined(SCPH_5500) || defined(SCPH_3500_5000) || defined(SCPH_3000) || defined(SCPH_1000)
+  #if defined(SCPH_102) || defined(SCPH_102A) || defined(SCPH_100) || defined(SCPH_7000_9000) || defined(SCPH_5500) || defined(SCPH_3500_5000) || defined(SCPH_3000) || defined(SCPH_1000)
 
     // Clear the timer interrupt flag
     #define TIMER_TIFR_CLEAR TIFR0 |= (1 << OCF0A)  // Clear the Timer0 Compare Match A interrupt flag
@@ -262,7 +262,7 @@
   #endif
 
   // Handling the BIOS patch
-  #if defined(SCPH_102) || defined(SCPH_100) || defined(SCPH_7000_9000) || defined(SCPH_5500) || defined(SCPH_3500_5000) || defined(SCPH_3000) || defined(SCPH_1000)
+  #if defined(SCPH_102) || defined(SCPH_102A) || defined(SCPH_100) || defined(SCPH_7000_9000) || defined(SCPH_5500) || defined(SCPH_3500_5000) || defined(SCPH_3000) || defined(SCPH_1000)
   // Pins input
     #define PIN_AX_INPUT DDRD &= ~(1 << DDD1)
     #define PIN_AY_INPUT DDRD &= ~(1 << DDD0)
@@ -362,7 +362,7 @@
     #define PIN_LED_OFF PORTB &= ~(1 << PB3)
   #endif
 
-  #if !defined(SCPH_xxx1) && !defined(SCPH_xxx2) && !defined(SCPH_103) && !defined(SCPH_xxxx)
+  #if !defined(SCPH_xxx1) && !defined(SCPH_xxx2) && && !defined(SCPH_xxx3) !defined(SCPH_103) && && !defined(SCPH_101) !defined(SCPH_xxxx) 
    #error "ATtiny85_45_25 Not compatible with BIOS patch"
   #endif
 

PSNee/PSNee/PSNee.ino

@@ -36,6 +36,7 @@
 //XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 
 //#define SCPH_102         // DX - D0, AX - A7. BIOS ver. 4.4e, CRC 0BAD7EA9 | 4.5e, CRC 76B880E5
+//#define SCPH_102A        // ! works in progress DX - D2, AX - A18. BIOS ver. 4.4e, CRC 0BAD7EA9 | 4.5e, CRC 76B880E5 
 //#define SCPH_100         // DX - D0, AX - A7. BIOS ver. 4.3j, CRC F2AF798B
 //#define SCPH_7000_9000   // DX - D0, AX - A7. BIOS ver. 4.0j, CRC EC541CD0
 //#define SCPH_5500        // DX - D0, AX - A5. BIOS ver. 3.0j, CRC FF3EEB8C
@@ -49,10 +50,10 @@
 //------------------------------------------------------------------------------------------------
 
 
-//#define ATmega328_168  
+#define ATmega328_168  
 //#define ATmega32U4_16U4
 //#define ATtiny85_45_25 
-//#define ATtiny88_48
+
 /*  
   Fuses: 
   ATmega - H: DF, L: EE, E: FD. 
@@ -86,8 +87,8 @@
 //                         Options
 //------------------------------------------------------------------------------------------------
 
-#define LED_RUN         // Turns on the LED when injections occur. D13 for Arduino, ATtiny add a led between PB3 (pin 2) and gnd with a 1k resistor in series, ATmega32U4 (Pro Micro) add a led between PB6 (pin 10) and gnd with a 1k resistor in series
-#define PATCH_SWITCH  // Enables hardware support for disabling BIOS patching. Useful in rare cases where the BIOS patch prevents the playback of original games
+//#define LED_RUN         // Turns on the LED when injections occur. D13 for Arduino, ATtiny add a led between PB3 (pin 2) and gnd with a 1k resistor in series, ATmega32U4 (Pro Micro) add a led between PB6 (pin 10) and gnd with a 1k resistor in series
+//#define PATCH_SWITCH  // Enables hardware support for disabling BIOS patching. Useful in rare cases where the BIOS patch prevents the playback of original games
 
 //------------------------------------------------------------------------------------------------
 //                         pointer and variable section
@@ -104,7 +105,7 @@
 //Creation of the different variables for the counter
 volatile uint8_t count_isr = 0;
 volatile uint32_t microsec = 0;
-volatile uint16_t millisec = 0;
+volatile uint32_t millisec = 0;
 
 //Flag initializing for automatic console generation selection 0 = old, 1 = pu-22 end  ++
 volatile bool wfck_mode = 0;
@@ -342,14 +343,18 @@ int main() {
 
   Init();
 
-#if defined(BIOS_PATCH)
+#ifdef BIOS_PATCH
 
 #ifdef LED_RUN
   PIN_LED_ON;
 #endif
 
   if (Flag_Switch == 0) {
-    Bios_Patching();
+    #ifdef SCPH_102A
+      Bios_Patching_SCPH_102A();
+    #else
+      Bios_Patching();
+    #endif
   }
 
 #ifdef LED_RUN

PSNee/PSNee/settings.h

@@ -17,6 +17,14 @@
 
 */
 
+#ifdef  SCPH_102A
+//#define SCEE
+#define BIOS_PATCH
+#define SATBILIZATIONPOINT 100
+#define DELAYPOINT 1350
+#define HOLD _delay_us(17)
+#define PATCHING _delay_us(4)
+#endif
 
 #ifdef  SCPH_102
 //#define SCEE
@@ -101,7 +109,7 @@
 const char region[3] = {'a', 'a', 'a'};
 #endif
 
-#if defined(SCPH_102) || defined(SCPH_xxx2)
+#if defined(SCPH_102) || defined(SCPH_xxx2) || defined(SCPH_102A)
 const char region[3] = {'e', 'e', 'e'};
 #endif
 
@@ -114,7 +122,7 @@ const char region[3] = {'a', 'e', 'i'};
 #endif
 
 //All models have bad behavior below 11, PU-41 can start to have bad behavior beyond 20, for fat models we can go up to 60
-#if defined(SCPH_100) || defined(SCPH_101) || defined(SCPH_102) || defined(SCPH_103) || defined(SCPH_xxxx)
+#if defined(SCPH_100) || defined(SCPH_101) || defined(SCPH_102) || defined(SCPH_102A) || defined(SCPH_103) || defined(SCPH_xxxx)
 #define HYSTERESIS_MAX 15
 #endif
 
@@ -125,11 +133,11 @@ const char region[3] = {'a', 'e', 'i'};
 #if !defined(SCPH_xxx1) && !defined(SCPH_xxx2) && !defined(SCPH_xxx3) && !defined(SCPH_103) && \
     !defined(SCPH_102) && !defined(SCPH_101) && !defined(SCPH_100) && !defined(SCPH_7000_9000) && \
     !defined(SCPH_5500) && !defined(SCPH_3500_5000) && !defined(SCPH_3000) && \
-    !defined(SCPH_1000) && !defined(SCPH_xxxx)
+    !defined(SCPH_1000) && !defined(SCPH_xxxx) && !defined(SCPH_102A)
  #error "Console not selected! Please uncoment #define with SCPH model number."
 #elif !(defined(SCPH_xxx1) ^ defined(SCPH_xxx2) ^ defined(SCPH_xxx3) ^ defined(SCPH_103) ^ \
       defined(SCPH_102) ^ defined(SCPH_101) ^ defined(SCPH_100) ^ defined(SCPH_7000_9000) ^ \
       defined(SCPH_5500) ^ defined(SCPH_3500_5000) ^ defined(SCPH_3000) ^ \
-      defined(SCPH_1000) ^ defined(SCPH_xxxx))
+      defined(SCPH_1000) ^ defined(SCPH_xxxx) ^ defined(SCPH_102A))
  #error "May be selected only one console! Please check #define with SCPH model number."
 #endif