#include "platform.h"
#include "command.h"
#include "jtag430.h"
+#include "jtag430x2.h"
-unsigned char jtagid;
+void jtag430x2_handle_fn( uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len);
-//! Get the JTAG ID
-unsigned char jtag430x2_jtagid(){
- jtag430_resettap();
- return jtagid=jtag_ir_shift8(IR_BYPASS);
-}
-//! Start JTAG, take pins
-unsigned char jtag430x2_start(){
- jtagsetup();
-
- //Known-good starting position.
- //Might be unnecessary.
- SETTST;
- SETRST;
-
- delay(0xFFFF);
-
- //Entry sequence from Page 67 of SLAU265A for 4-wire MSP430 JTAG
- CLRRST;
- delay(20);//10
- CLRTST;
- delay(10);//5
- SETTST;
- msdelay(10);//5
- SETRST;
- P5DIR&=~RST;
-
- delay(0xFFFF);
-
- //Perform a reset and disable watchdog.
- return jtag430x2_jtagid();
-}
+// define the jtag430x2 app's app_t
+app_t const jtag430x2_app = {
+
+ /* app number */
+ JTAG430X2,
+
+ /* handle fn */
+ jtag430x2_handle_fn,
+
+ /* name */
+ "JTAG430X2",
+
+ /* desc */
+ "\tThe JTAG430X2 app extends the basic JTAG app with support\n"
+ "\tfor 20-bit MSP430 devices.\n"
+};
+
//! Grab the core ID.
unsigned int jtag430_coreid(){
//! Handles MSP430X2 JTAG commands. Forwards others to JTAG.
-void jtag430x2handle(unsigned char app,
- unsigned char verb,
- unsigned long len){
+void jtag430x2_handle_fn( uint8_t const app,
+ uint8_t const verb,
+ uint32_t const len)
+{
register char blocks;
unsigned int i,val;
- unsigned long at;
+ unsigned long at, l;
//jtag430_resettap();
if(verb!=START && jtag430mode==MSP430MODE){
- jtag430handle(app,verb,len);
+ (*(jtag430_app.handle))(app,verb,len);
return;
}
//MSP430 or MSP430X
if(jtagid==MSP430JTAGID){
- jtag430mode=MSP430MODE;
-
- /* 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);
+ debugstr("ERROR, using JTAG430X2 instead of JTAG430!");
return;
}else if(jtagid==MSP430X2JTAGID){
jtag430mode=MSP430X2MODE;
blocks=(len>4?cmddata[4]:1);
at=cmddatalong[0];
- len=0x80;
- txhead(app,verb,len);
+ l=0x80;
+ txhead(app,verb,l);
while(blocks--){
- for(i=0;i<len;i+=2){
+ for(i=0;i<l;i+=2){
jtag430_resettap();
delay(10);
txdata(app,NOK,0);
break;
default:
- jtaghandle(app,verb,len);
+ (*(jtag_app.handle))(app,verb,len);
}
jtag430_resettap();
}
+