//! Handles classic MSP430 JTAG commands. Forwards others to JTAG.
void jtag430handle(unsigned char app,
unsigned char verb,
- unsigned char len){
+ unsigned long len){
register char blocks;
unsigned long at;
unsigned int i, val;
case JTAG430_READMEM:
case PEEK:
- /*
- cmddataword[0]=jtag430_readmem(cmddataword[0]);
- txdata(app,verb,2);
- */
- blocks=(len>4?cmddata[4]:1);
at=cmddatalong[0];
//Fetch large blocks for bulk fetches,
//small blocks for individual peeks.
- if(blocks>1)
- len=0x80;
+ if(len>5)
+ len=(cmddataword[2]);//always even.
+ else
+ len=2;
+ len&=~1;//clue lsbit
txhead(app,verb,len);
-
- while(blocks--){
- for(i=0;i<len;i+=2){
- jtag430_resettap();
- //delay(10);
-
- val=jtag430_readmem(at);
-
- at+=2;
- serial_tx(val&0xFF);
- serial_tx((val&0xFF00)>>8);
- }
+ for(i=0;i<len;i+=2){
+ jtag430_resettap();
+ val=jtag430_readmem(at);
+
+ at+=2;
+ serial_tx(val&0xFF);
+ serial_tx((val&0xFF00)>>8);
}
break;
case JTAG430_WRITEMEM: