Merge pull request #49 from splash5/master

Add WonderSwan adapter PCB and schematics

Cart_Reader/WS.ino

@@ -21,22 +21,6 @@
 // C45         : /CART? (L when accessing cartridge (ROM/SRAM/PORT))
 // C46         : INT (for RTC alarm interrupt)
 // C47         : CLK (384KHz on WS)
-// ------------------------------------------
-// how to connect to CartReader
-// ------------------------------------------
-// /RST   : PH0
-// /CART? : PH3
-// /MMC   : PH4
-// /WE    : PH5
-// /OE    : PH6
-// CLK    : PE3
-// /IO?   : PE4 
-// INT    : PG5
-// A(-1)-A6: PF0-PF7
-// A7-A14:  PK0-PK7
-// A15-A18: PL0-PL3
-// D0-D7  : PC0-PC7
-// D8-D15 : PA0-PA7
 
 /******************************************
   Menu
@@ -58,11 +42,11 @@ static boolean wsWitch = false;
 
 void setup_WS()
 {
-  // A0 - A7
+  // A-1 - A6
   DDRF = 0xff;
-  // A8 - A15
+  // A7 - A14
   DDRK = 0xff;
-  // A16 - A23
+  // A15 - A22
   DDRL = 0xff;
 
   // D0 - D15
@@ -1159,8 +1143,6 @@ void generateEepromInstruction_WS(uint8_t *instruction, uint8_t opcode, uint16_t
 // All signals' timing are analyzed by using LogicAnalyzer
 boolean unlockMMC2003_WS()
 {
-  dataOut_WS();
-
   // initialize all control pin state
   // RST(PH0) and CLK(PE3) to LOW
   // CART(PH3) MMC(PH4) WE(PH5) OE(PH6) to HIGH
@@ -1171,24 +1153,21 @@ boolean unlockMMC2003_WS()
   // switch RST(PH0) to HIGH
   PORTH |= (1 << 0);
 
-  // data = 0x00ff
-  PORTC = 0xff;
-  PORTA = 0x00;  
-
   PORTF = 0x0a;
   PORTL = 0x05;
-  pulseCLK_WS(5);
+  pulseCLK_WS(3);
 
   PORTF = 0x05;
   PORTL = 0x0a;
   pulseCLK_WS(4);
 
   // MMC is outputing something on IO? pin synchronized with CLK
-  // so still need to pulse CLK until everything is ok
-  pulseCLK_WS(19);
+  // so still need to pulse CLK until MMC is ok to work
+  pulseCLK_WS(18);
 
   // unlock procedure finished
   // see if we can set bank number to MMC
+  dataOut_WS();
   writeByte_WSPort(0xc2, 0xaa);
   writeByte_WSPort(0xc3, 0x55);
 

pcb/README.md

@@ -14,6 +14,10 @@
 
 ![image](https://dl.dropboxusercontent.com/s/r6lavgoaccjtrz7/sms_adapter.png?dl=1)   
 
+#### wonderswan_adapter.zip is an add-on for reading WonderSwan carts. [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/755249v8smcuoft/wonderswan_adapter.png?dl=1), this is very important or else it won't fit into the SNES slot. (Optional) Install C1 and C2 with 10uF/16v 1210 package tantalum capacitor.
+
+![image](https://dl.dropboxusercontent.com/s/755249v8smcuoft/wonderswan_adapter.png?dl=1)   
+
 #### flash_adapter.zip is an add-on for writing flashroms like the 29F032, 29L3211, 29LV160, [PCB thickness needs to be changed to 1.2mm](https://dl.dropboxusercontent.com/s/va1c72073cqfy90/pcb12.jpg?dl=1), this is very important or else it won't fit into the SNES slot.   
    
 ![image](https://dl.dropboxusercontent.com/s/afrfmiuwvmvg9px/flash_adapter.png?dl=1)