/*! \file jtag430x2.c
\author Travis Goodspeed <travis at radiantmachines.com>
-
- This is an implementation of the MSP430X2 JTAG protocol
- for the GoodFET project at http://goodfet.sf.net/
-
- See the license file for details of proper use.
+ \brief MSP430X2 JTAG (20-bit)
*/
#include "platform.h"
//! Read data from address
unsigned int jtag430x2_readmem(unsigned long adr){
unsigned int toret=0;
- unsigned int tries=5;
+ //unsigned int tries=5;
while(1){
do{
switch(verb){
case START:
//Enter JTAG mode.
- do cmddata[0]=jtag430x2_start();
- while(cmddata[0]==00 || cmddata[0]==0xFF);
+ //do
+ cmddata[0]=jtag430x2_start();
+ //while(cmddata[0]==00 || cmddata[0]==0xFF);
//MSP430 or MSP430X
if(jtagid==MSP430JTAGID){
cmddatalong[0]=jtag430_deviceid();
txdata(app,verb,4);
break;
- case JTAG430_HALTCPU:
- //jtag430x2_haltcpu();
- break;
- case JTAG430_RELEASECPU:
- case JTAG430_SETINSTRFETCH:
+
case JTAG430_WRITEMEM:
case POKE:
jtag430x2_writemem(cmddatalong[0],
cmddataword[0]=jtag430x2_readmem(cmddatalong[0]);
txdata(app,verb,2);
break;
+
+ //unimplemented functions
+ case JTAG430_HALTCPU:
+ case JTAG430_RELEASECPU:
+ case JTAG430_SETINSTRFETCH:
case JTAG430_WRITEFLASH:
case JTAG430_ERASEFLASH:
case JTAG430_SETPC:
+ txdata(app,NOK,0);
+ break;
default:
jtaghandle(app,verb,len);
}