#include "platform.h"
#include "command.h"
-#include "jtag.h"
+#include "jtag430.h"
unsigned char jtagid;
//Entry sequence from Page 67 of SLAU265A for 4-wire MSP430 JTAG
CLRRST;
- delay(10);
+ delay(20);//10
CLRTST;
- delay(5);
+ delay(10);//5
SETTST;
- msdelay(5);
+ msdelay(10);//5
SETRST;
P5DIR&=~RST;
SETTCLK;
//init state
}else{
- while(1) P1OUT^=1; //loop if locked up
+ while(1) PLEDOUT^=PLEDPIN; //loop if locked up
}
}
//unsigned int tries=5;
while(1){
- do{
- jtag_ir_shift8(IR_CNTRL_SIG_CAPTURE);
- }while(!(jtag_dr_shift16(0) & 0x0301));
+ //do{
+ jtag_ir_shift8(IR_CNTRL_SIG_CAPTURE);
+ //}while(!(jtag_dr_shift16(0) & 0x0301));
if(jtag_dr_shift16(0) & 0x0301){
// Read Memory
CLRTCLK;
jtag_ir_shift8(IR_CNTRL_SIG_16BIT);
- if(adr>=0x100){
- jtag_dr_shift16(0x0501);//word read
- }else{
- jtag_dr_shift16(0x0511);//byte read
- }
+
+ //if(adr>=0x100){
+ jtag_dr_shift16(0x0501);//word read
+ //}else{
+ //jtag_dr_shift16(0x0511);//byte read
+ //}
jtag_ir_shift8(IR_ADDR_16BIT);
jtag_dr_shift20(adr); //20
//! Handles MSP430X2 JTAG commands. Forwards others to JTAG.
void jtag430x2handle(unsigned char app,
unsigned char verb,
- unsigned char len){
+ unsigned long len){
register char blocks;
unsigned int i,val;
//jtag430_resettap();
+ if(verb!=START && jtag430mode==MSP430MODE){
+ jtag430handle(app,verb,len);
+ return;
+ }
+
switch(verb){
case START:
//Enter JTAG mode.
//do
- cmddata[0]=jtag430x2_start();
+ cmddata[0]=jtag430x2_start();
//while(cmddata[0]==00 || cmddata[0]==0xFF);
//MSP430 or MSP430X
if(jtagid==MSP430JTAGID){
jtag430mode=MSP430MODE;
- drwidth=16;
+
+ /* So the way this works is that a width of 20 does some
+ backward-compatibility finagling, causing the correct value
+ to be exchanged for addresses on 16-bit chips as well as the
+ new MSP430X chips. (This has only been verified on the
+ MSP430F2xx family. TODO verify for others.)
+ */
+
+ drwidth=20;
+
+ //Perform a reset and disable watchdog.
+ jtag430_por();
+ jtag430_writemem(0x120,0x5a80);//disable watchdog
+
+ jtag430_haltcpu();
+
+ jtag430_resettap();
+ txdata(app,verb,1);
+ return;
}else if(jtagid==MSP430X2JTAGID){
jtag430mode=MSP430X2MODE;
drwidth=20;
}else{
+ debugstr("JTAG version unknown.");
txdata(app,NOK,1);
return;
}
blocks=(len>4?cmddata[4]:1);
at=cmddatalong[0];
- /*
- cmddataword[0]=jtag430x2_readmem(at);
- txdata(app,verb,2);
- break;
- */
-
len=0x80;
- serial_tx(app);
- serial_tx(verb);
- serial_tx(len);
+ txhead(app,verb,len);
while(blocks--){
for(i=0;i<len;i+=2){