TI Launchpad patch from Peter Lorenzen, edited to ease the mergequake.

[goodfet] / firmware / apps / chipcon / chipcon.c

diff --git a/firmware/apps/chipcon/chipcon.c b/firmware/apps/chipcon/chipcon.c
index 392e900..96fec22 100644 (file)
--- a/firmware/apps/chipcon/chipcon.c
+++ b/firmware/apps/chipcon/chipcon.c
@@ -50,7 +50,26 @@ app_t const chipcon_app = {
 
 //Pins and I/O
 //MISO and MOSI are the same pin, direction changes.
+
+#if (platform == tilaunchpad)
+/*
+ * The Launchpad has only pins easily available        
+ * P5.3 TCK    SCK             (labeled TEST J3-10 J2-17)      DC closest to antenna           (blue)
+ * P5.2 IO     MISO MOSI       (labeled RST  J3-8  J2-16)      DD next to closer to USB                (yellow)
+ * P3.6 txd1   RST             (labeled RXD  J3-6  J1-4)       next to GND, which is closest to USB    (orange)
+ * P3.7 rxd1   RST             (labeled TXD  J3-4  J1-3)       connect to led1 J1-2
+ * 
+ * for a permanent marriage between a TI-Launchpad, move RST to pin48 P5.4
+ * (requeries soldering) and use rxd/txd for direct communication with IM-ME dongle.
+ */
+
+#define RST  BIT6      // P3.7
+#include <msp430_serial.h>
+#else  // tilaunchpad
 #define RST  BIT0
+#define dputs(s)
+#endif // ! tilaunchad
+
 #define MOSI BIT2
 #define MISO BIT2
 #define SCK  BIT3
@@ -59,22 +78,46 @@ app_t const chipcon_app = {
 //This could be more accurate.
 //Does it ever need to be?
 #define CCSPEED 3
+//#define CCSPEED 3
 //#define CCDELAY(x) delay(x)
 #define CCDELAY(x) 
 
-#define SETMOSI P5OUT|=MOSI
-#define CLRMOSI P5OUT&=~MOSI
-#define SETCLK P5OUT|=SCK
-#define CLRCLK P5OUT&=~SCK
-#define READMISO (P5IN&MISO?1:0)
-
-#define CCWRITE P5DIR|=MOSI
-#define CCREAD P5DIR&=~MISO
+#define SETMOSI SPIOUT|=MOSI
+#define CLRMOSI SPIOUT&=~MOSI
+#define SETCLK SPIOUT|=SCK
+#define CLRCLK SPIOUT&=~SCK
+#define READMISO (SPIIN&MISO?1:0)
+
+#if (platform == tilaunchpad)
+#  if (SPIDIR != P5DIR)
+#    error "SPIDIR != P5DIR"
+#  endif
+#  if (SPIOUT != P5OUT)
+#    error "SPIOUT != P5OUT"
+#  endif
+#  define SETRST  P3OUT|=RST
+#  define CLRRST  P3OUT&=~RST
+#else
+#  define SETRST  P3OUT|=RST
+#  define CLRRST  P3OUT&=~RST
+#endif
+
+#define CCWRITE SPIDIR|=MOSI
+#define CCREAD SPIDIR&=~MISO
 
 //! Set up the pins for CC mode.  Does not init debugger.
 void ccsetup(){
-  P5OUT|=MOSI+SCK+RST;
-  P5DIR|=MOSI+SCK+RST;
+#if (platform == tilaunchpad)
+       dputs("ccsetup");
+  SPIOUT|=MOSI+SCK;
+  SPIDIR|=MOSI+SCK;
+  P3OUT|=RST;
+  P3DIR|=RST;
+       dputs("done ccsetup");
+#else
+  SPIOUT|=MOSI+SCK+RST;
+  SPIDIR|=MOSI+SCK+RST;
+#endif
   //P5REN=0xFF;
 }
 
@@ -97,31 +140,37 @@ void ccsetup(){
 //! Initialize the debugger
 void ccdebuginit(){
   //Port output BUT NOT DIRECTION is set at start.
-  P5OUT|=MOSI+SCK+RST;
+#if (platform == tilaunchpad)
+  dputs("ccdebuginit");
+  SPIOUT|=MOSI+SCK;
+  P3OUT|=RST;
+#else
+  SPIOUT|=MOSI+SCK+RST;
+#endif
   
-  //delay(30); //So the beginning is ready for glitching.
+  delay(30); //So the beginning is ready for glitching.
   
   //Two positive debug clock pulses while !RST is low.
   //Take RST low, pulse twice, then high.
-  P5OUT&=~SCK;
+  SPIOUT&=~SCK;
   delay(10);
-  P5OUT&=~RST;
+  CLRRST;
   
   delay(10);
   
   //Two rising edges.
-  P5OUT^=SCK; //up
+  SPIOUT^=SCK; //up
   delay(1);
-  P5OUT^=SCK; //down
+  SPIOUT^=SCK; //down
   delay(1);
-  P5OUT^=SCK; //up
+  SPIOUT^=SCK; //up
   delay(1);
-  P5OUT^=SCK; //Unnecessary.
+  SPIOUT^=SCK; //Unnecessary.
   delay(1);
   //delay(0);
   
   //Raise !RST.
-  P5OUT|=RST;
+  SETRST;
 }
 
 //! Read and write a CC bit.
@@ -139,11 +188,11 @@ unsigned char cctrans8(unsigned char byte){
     byte <<= 1;
  
     /* half a clock cycle before leading/rising edge */
-    CCDELAY(CCSPEED/2);
+    CCDELAY(CCSPEED>>2);
     SETCLK;
  
     /* half a clock cycle before trailing/falling edge */
-    CCDELAY(CCSPEED/2);
+    CCDELAY(CCSPEED>>2);
  
     /* read MISO on trailing edge */
     byte |= READMISO;
@@ -206,9 +255,9 @@ void cc_handle_fn( uint8_t const app,
     break;
   case STOP://exit debugger
     //Take RST low, then high.
-    P5OUT&=~RST;
+    CLRRST;
     CCDELAY(CCSPEED);
-    P5OUT|=RST;
+    SETRST;
     txdata(app,verb,0);
     break;
   case SETUP:
@@ -262,7 +311,7 @@ void cc_handle_fn( uint8_t const app,
     txdata(app,verb,1);
     break;
   case CC_STEP_REPLACE:
-    txdata(app,NOK,0);//TODO add me
+    txdata(app,NOK,0);//Don't add this; it's non-standard.
     break;
   case CC_GET_CHIP_ID:
     cmddataword[0]=cc_get_chip_id();
@@ -536,13 +585,13 @@ void cc_write_flash_page(u32 adr){
   
   
   while(!(cc_read_status()&CC_STATUS_CPUHALTED)){
-    PLEDOUT^=PLEDPIN;//blink LED while flashing    
+    led_toggle();//blink LED while flashing    
   }
   
   
   //debugstr("Done flashing.");
   
-  PLEDOUT&=~PLEDPIN;//clear LED
+  led_off();
 }
 
 //! Read the PC