*PIN.17 (DBGRQ) Asynchronous debug request. DBGRQ allows an external signal to force the ARM core into debug mode, should be pull down to GND.
PIN.19 (DBGACK) Debug acknowledge. The ARM core acknowledges debug-mode inresponse to a DBGRQ input.
+
+----------- SAMPLE TIMES -----------
+
+TDI and TMS are sampled on the rising edge of TCK and TDO transitions appear on the falling edge of TCK. Therefore, TDI and TMS must be written after the falling edge of TCK and TDO must be read after the rising edge of TCK.
+
+for this module, we keep tck high for all changes/sampling, and then bounce it.
****************************************************************/
+
/************************** JTAGARM7TDMI Primitives ****************************/
void jtag_goto_shift_ir() {
SETTMS;
}
void jtag_arm_tcktock() {
+ delay(1);
CLRTCK;
PLEDOUT^=PLEDPIN;
+ delay(1);
SETTCK;
PLEDOUT^=PLEDPIN;
}
-//! Set up the pins for JTAG mode.
-void armjtagsetup(){
- P5DIR|=MOSI+SCK+TMS;
- P5DIR&=~MISO;
- P5OUT|=0xFFFF;
- P5OUT=0;
- P4DIR|=TST;
- P2DIR|=RST;
- msdelay(10);
-}
-
// ! Start JTAG, setup pins, reset TAP and return IDCODE
unsigned long jtagarm7tdmi_start() {
- armjtagsetup();
+ jtagsetup();
//Known-good starting position.
//Might be unnecessary.
- SETTST;
- SETRST;
+ //SETTST;
+ //SETRST;
- delay(0x2);
+ //delay(0x2);
- CLRRST;
- delay(2);
- CLRTST;
+ //CLRRST;
+ //delay(2);
+ //CLRTST;
- msdelay(10);
- SETRST;
+ //msdelay(10);
+ //SETRST;
/*
P5DIR &=~RST;
*/
- delay(0x2);
+ //delay(0x2);
jtagarm7tdmi_resettap();
return jtagarm7tdmi_idcode();
}
}
//! INTEST verb - do internal test
unsigned char jtagarm7tdmi_intest() {
- jtagarm7tdmi_resettap();
SHIFT_IR;
return jtagarmtransn(ARM7TDMI_IR_INTEST, 4, LSB, END, NORETIDLE);
}
//! EXTEST verb
unsigned char jtagarm7tdmi_extest() {
- jtagarm7tdmi_resettap();
SHIFT_IR;
return jtagarmtransn(ARM7TDMI_IR_EXTEST, 4, LSB, END, NORETIDLE);
}
state” to the “Select DR” state each time the “Update” state is reached.
*/
unsigned long retval;
- if (current_chain != chain) { // breaks shit when going from idcode back to scan chain
+ if (current_chain != chain) {
+ debugstr("===change chains===");
SHIFT_IR;
jtagarmtransn(ARM7TDMI_IR_SCAN_N, 4, LSB, END, NORETIDLE);
SHIFT_DR;
retval = jtagarmtransn(chain, 4, LSB, END, NORETIDLE);
current_chain = chain;
} else
+ debugstr("===NOT change chains===");
retval = current_chain;
// put in test mode...
SHIFT_IR;
-//! push an instruction into the pipeline - Assumes scan-chain 1 is already INTEST
-unsigned long jtagarm7tdmi_instr_primitive(unsigned long instr, char breakpt){
+//! push an instruction into the pipeline
+unsigned long jtagarm7tdmi_instr_primitive(unsigned long instr, char breakpt){ // PROVEN
unsigned long retval;
- //jtagarm7tdmi_resettap(); // FIXME: DEBUG: seems necessary for some reason. ugh.
jtagarm7tdmi_scan_intest(1);
SHIFT_DR;
// Now shift in the 32 bits
retval = jtagarmtransn(instr, 32, MSB, END, RETIDLE); // Must return to RUN-TEST/IDLE state for instruction to enter pipeline, and causes debug clock.
- //jtag_arm_tcktock();
return(retval);
}
-
-unsigned long jtagarm7tdmi_nop(char breakpt){
- //jtagarm7tdmi_scan_intest(1);
- //SHIFT_DR
- //return jtagarmtransn(ARM_INSTR_NOP, 32, LSB, END, NORETIDLE);
+//! push NOP into the instruction pipeline
+unsigned long jtagarm7tdmi_nop(char breakpt){ // PROVEN
return jtagarm7tdmi_instr_primitive(ARM_INSTR_NOP, breakpt);
}
NOP
*/
+
//! set the current mode to ARM, returns PC (FIXME). Should be used by haltcpu(), which should also store PC and the THUMB state, for use by releasecpu();
unsigned long jtagarm7tdmi_setMode_ARM(){ // PROVEN
+ debugstr("=== Thumb Mode... Switching to ARM mode ===");
unsigned long retval = 0xff;
while ((jtagarm7tdmi_get_dbgstate() & JTAG_ARM7TDMI_DBG_TBIT)&& retval-- > 0){
cmddataword[6] = jtagarm7tdmi_instr_primitive(THUMB_INSTR_NOP,0);
//! shifter for writing to chain2 (EmbeddedICE).
unsigned long eice_write(unsigned char reg, unsigned long data){
unsigned long retval, temp;
+ debugstr("eice_write");
+ debughex(reg);
+ debughex32(data);
jtagarm7tdmi_scan_intest(2);
// Now shift in the 32 bits
SHIFT_DR;
//! shifter for reading from chain2 (EmbeddedICE).
unsigned long eice_read(unsigned char reg){ // PROVEN
- unsigned long temp;
+ unsigned long temp, retval;
+ debugstr("eice_read");
+ debughex(reg);
jtagarm7tdmi_scan_intest(2);
// send in the register address - 5 bits LSB
SHIFT_DR;
// Now shift out the 32 bits
- return(jtagarmtransn(0, 32, LSB, END, RETIDLE)); // atmel arm jtag docs pp.10-11: LSB first
+ retval = jtagarmtransn(0, 32, LSB, END, RETIDLE); // atmel arm jtag docs pp.10-11: LSB first
+ debughex32(retval);
+ return(retval); // atmel arm jtag docs pp.10-11: LSB first
}
/******************** Complex Commands **************************/
-//! Push an instruction into the CPU pipeline
-// NOTE! Must provide EXECNOPARM for parameter if no parm is required.
-unsigned long test_exec(unsigned long instr, unsigned long parameter, unsigned char systemspeed) {
- unsigned long retval;
-
- cmddatalong[1] = jtagarm7tdmi_nop( 0);
- cmddatalong[2] = jtagarm7tdmi_nop(systemspeed);
- cmddatalong[3] = jtagarm7tdmi_instr_primitive(instr, 0); // write 32-bit instruction code into DR
- cmddatalong[4] = jtagarm7tdmi_nop( 0);
- cmddatalong[5] = jtagarm7tdmi_nop( 0);
- cmddatalong[6] = jtagarm7tdmi_instr_primitive(parameter, 0); // inject long
- cmddatalong[7] = jtagarm7tdmi_nop( 0);
- cmddatalong[8] = jtagarm7tdmi_nop( 0);
- cmddatalong[9] = jtagarm7tdmi_nop( 0);
- retval = cmddatalong[9];
-
- return(retval);
-}
-
//! Push an instruction into the CPU pipeline
// NOTE! Must provide EXECNOPARM for parameter if no parm is required.
unsigned long jtagarm7tdmi_exec(unsigned long instr, unsigned long parameter, unsigned char systemspeed) {
unsigned long retval;
- cmddatalong[1] = jtagarm7tdmi_nop( 0);
- cmddatalong[2] = jtagarm7tdmi_nop(systemspeed);
- cmddatalong[3] = jtagarm7tdmi_instr_primitive(instr, 0); // write 32-bit instruction code into DR
- cmddatalong[4] = jtagarm7tdmi_nop( 0);
- cmddatalong[5] = jtagarm7tdmi_nop( 0);
- cmddatalong[6] = jtagarm7tdmi_instr_primitive(parameter, 0); // inject long
- cmddatalong[7] = jtagarm7tdmi_nop( 0);
+ debughex32(jtagarm7tdmi_nop( 0));
+ debughex32(jtagarm7tdmi_nop(systemspeed));
+ debughex32(jtagarm7tdmi_instr_primitive(instr, 0)); // write 32-bit instruction code into DR
+ debughex32(jtagarm7tdmi_nop( 0));
+ debughex32(jtagarm7tdmi_nop( 0));
+ debughex32(jtagarm7tdmi_instr_primitive(parameter, 0)); // inject long
retval = jtagarm7tdmi_nop( 0);
- cmddatalong[9] = jtagarm7tdmi_nop( 0);
- cmddatalong[8] = retval;
+ debughex32(retval);
+ debughex32(jtagarm7tdmi_nop( 0));
+ debughex32(jtagarm7tdmi_nop( 0));
return(retval);
}
//! Retrieve a 32-bit Register value
-unsigned long jtagarm7tdmi_get_register(unsigned char reg) {
+unsigned long jtagarm7tdmi_get_register(unsigned long reg) {
unsigned long retval = 0, instr;
// push nop into pipeline - clean out the pipeline...
- cmddatalong[2] = jtagarm7tdmi_nop( 0);
-
- instr = ARM_READ_REG | (reg<<12); // push STR Rx, [R14] into pipeline
- cmddatalong[1] = jtagarm7tdmi_instr_primitive(instr, 0);
- cmddatalong[2] = jtagarm7tdmi_nop( 0); // push nop into pipeline - fetched
- cmddatalong[3] = jtagarm7tdmi_nop( 0); // push nop into pipeline - decoded
- cmddatalong[4] = jtagarm7tdmi_nop( 0); // push nop into pipeline - executed
+ instr = (unsigned long)(reg<<12) | (unsigned long)ARM_READ_REG; // STR Rx, [R14]
+ //instr = (unsigned long)(((unsigned long)reg<<12) | ARM_READ_REG);
+ //debugstr("Reading:");
+ //debughex32(instr);
+
+ jtagarm7tdmi_nop( 0);
+ jtagarm7tdmi_instr_primitive(instr, 0);
+ jtagarm7tdmi_nop( 0); // push nop into pipeline - fetched
+ jtagarm7tdmi_nop( 0); // push nop into pipeline - decoded
+ jtagarm7tdmi_nop( 0); // push nop into pipeline - executed
retval = jtagarm7tdmi_nop( 0); // recover 32-bit word
- cmddatalong[5] = retval;
- cmddatalong[6] = jtagarm7tdmi_nop( 0);
- cmddatalong[7] = jtagarm7tdmi_nop( 0);
- cmddatalong[8] = jtagarm7tdmi_nop( 0);
+ debughex32(retval);
+ jtagarm7tdmi_nop( 0);
+ jtagarm7tdmi_nop( 0);
+ jtagarm7tdmi_nop( 0);
return retval;
}
-//! Retrieve a 32-bit Register value
-unsigned long test_get_register(unsigned char reg) {
- unsigned long retval = 0, instr;
- // push nop into pipeline - clean out the pipeline...
- cmddatalong[2] = jtagarm7tdmi_nop( 0);
-
- instr = ARM_WRITE_REG | (reg<<12); // push STR Rx, [R14] into pipeline
- cmddatalong[1] = jtagarm7tdmi_instr_primitive(instr, 0);
- cmddatalong[2] = jtagarm7tdmi_nop( 0); // push nop into pipeline - fetched
- cmddatalong[3] = jtagarm7tdmi_nop( 0); // push nop into pipeline - decoded
- cmddatalong[4] = jtagarm7tdmi_nop( 0); // push nop into pipeline - executed
- retval = jtagarm7tdmi_nop( 0); // recover 32-bit word
- cmddatalong[5] = retval;
- cmddatalong[6] = jtagarm7tdmi_nop( 0);
- cmddatalong[7] = jtagarm7tdmi_nop( 0);
- cmddatalong[8] = jtagarm7tdmi_nop( 0);
- return retval;
-}
-
-//! Set a 32-bit Register value
-unsigned long jtagarm7tdmi_set_register(unsigned char reg, unsigned long val) {
- unsigned long retval = 0, instr;
- cmddatalong[2] = jtagarm7tdmi_nop( 0); // push nop into pipeline - clean out the pipeline...
-
- instr = ARM_WRITE_REG | (reg<<12); // push LDR Rx, [R14] into pipeline
- cmddatalong[1] = jtagarm7tdmi_instr_primitive(instr, 0);
- cmddatalong[2] = jtagarm7tdmi_nop( 0); // push nop into pipeline - fetched
- cmddatalong[3] = jtagarm7tdmi_nop( 0); // push nop into pipeline - decoded
-
- cmddatalong[4] = jtagarm7tdmi_instr_primitive(val, 0); // push 32-bit word on data bus - execute state
- cmddatalong[5] = jtagarm7tdmi_nop( 0); // push nop into pipeline - executed
-
- if (reg == ARM_REG_PC){
- cmddatalong[6] = jtagarm7tdmi_nop( 0);
- cmddatalong[7] = jtagarm7tdmi_nop( 0);
- }
- cmddatalong[8] = jtagarm7tdmi_nop( 0);
-
- retval = cmddatalong[5];
- return(retval);
-}
-
//! Set a 32-bit Register value
-unsigned long test_set_register(unsigned char reg, unsigned long val) {
- unsigned long retval = 0, instr;
- cmddatalong[1] = jtagarm7tdmi_nop( 0); // push nop into pipeline - clean out the pipeline...
-
- instr = ARM_READ_REG | (reg<<12); // push LDR Rx, [R14] into pipeline
- cmddatalong[2] = jtagarm7tdmi_instr_primitive(instr, 0);
+void jtagarm7tdmi_set_register(unsigned long reg, unsigned long val) {
+ unsigned long instr;
+ instr = (unsigned long)(((unsigned long)reg<<12) | ARM_WRITE_REG); // LDR Rx, [R14]
+ debugstr("Writing:");
+ debughex32(instr);
+ //debughex32(val);
+ jtagarm7tdmi_nop( 0); // push nop into pipeline - clean out the pipeline...
+ jtagarm7tdmi_instr_primitive(instr, 0); // push instr into pipeline - fetch
+ jtagarm7tdmi_nop( 0); // push nop into pipeline - decode
+ jtagarm7tdmi_nop( 0); // push nop into pipeline - execute
- cmddatalong[3] = jtagarm7tdmi_instr_primitive(val+32, 0); // push 32-bit word on data bus - execute state
- cmddatalong[4] = jtagarm7tdmi_instr_primitive(val+16, 0); // push 32-bit word on data bus - execute state
- cmddatalong[5] = jtagarm7tdmi_instr_primitive(val, 0); // push 32-bit word on data bus - execute state
- cmddatalong[6] = jtagarm7tdmi_instr_primitive(val-16, 0); // push 32-bit word on data bus - execute state
-
- if (reg == ARM_REG_PC){
- cmddatalong[7] = jtagarm7tdmi_nop( 0);
- cmddatalong[8] = jtagarm7tdmi_nop( 0);
- }
- cmddatalong[9] = jtagarm7tdmi_instr_primitive(val-32, 0); // push 32-bit word on data bus - execute state
-
- retval = cmddatalong[5];
- return(retval);
+ //debughex32(jtagarm7tdmi_instr_primitive(val, 0)); // push 32-bit word on data bus
+ jtagarm7tdmi_instr_primitive(val, 0); // push 32-bit word on data bus
+ jtagarm7tdmi_instr_primitive(val, 0); // push 32-bit word on data bus
+ jtagarm7tdmi_nop( 0); // push nop into pipeline - executed
+
+ //if (reg == ARM_REG_PC){
+ jtagarm7tdmi_nop( 0);
+ jtagarm7tdmi_nop( 0);
+ //}
+ jtagarm7tdmi_nop( 0);
}
-//! Get all registers. Return an array
-unsigned long* jtagarm7tdmi_get_registers() {
- cmddatalong[1] = jtagarm7tdmi_instr_primitive(ARM_INSTR_SKANKREGS,0);
- cmddatalong[2] = jtagarm7tdmi_nop( 0);
- cmddatalong[3] = jtagarm7tdmi_nop( 0);
- cmddatalong[4] = jtagarm7tdmi_nop( 0);
- cmddatalong[5] = jtagarm7tdmi_nop( 0);
- cmddatalong[6] = jtagarm7tdmi_nop( 0);
- cmddatalong[7] = jtagarm7tdmi_nop( 0);
- cmddatalong[8] = jtagarm7tdmi_nop( 0);
- cmddatalong[9] = jtagarm7tdmi_nop( 0);
+//! Get all registers, placing them into cmddatalong[0-15]
+void jtagarm7tdmi_get_registers() {
+ debughex32(ARM_INSTR_SKANKREGS1);
+ debughex32(jtagarm7tdmi_nop( 0));
+ debughex32(jtagarm7tdmi_instr_primitive(ARM_INSTR_SKANKREGS1,0));
+ debughex32(jtagarm7tdmi_nop( 0));
+ debughex32(jtagarm7tdmi_nop( 0));
+ cmddatalong[ 0] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 1] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 2] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 3] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 4] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 5] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 6] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 7] = jtagarm7tdmi_nop( 0);
+ debughex32(ARM_INSTR_SKANKREGS2);
+ debughex32(jtagarm7tdmi_nop( 0));
+ //jtagarm7tdmi_nop( 0);
+ debughex32(jtagarm7tdmi_instr_primitive(ARM_INSTR_SKANKREGS2,0));
+ debughex32(jtagarm7tdmi_nop( 0));
+ debughex32(jtagarm7tdmi_nop( 0));
+ //jtagarm7tdmi_nop( 0);
+ //jtagarm7tdmi_nop( 0);
+ cmddatalong[ 8] = jtagarm7tdmi_nop( 0);
+ cmddatalong[ 9] = jtagarm7tdmi_nop( 0);
cmddatalong[10] = jtagarm7tdmi_nop( 0);
cmddatalong[11] = jtagarm7tdmi_nop( 0);
cmddatalong[12] = jtagarm7tdmi_nop( 0);
cmddatalong[13] = jtagarm7tdmi_nop( 0);
cmddatalong[14] = jtagarm7tdmi_nop( 0);
cmddatalong[15] = jtagarm7tdmi_nop( 0);
- cmddatalong[16] = jtagarm7tdmi_nop( 0);
- cmddatalong[17] = jtagarm7tdmi_nop( 0);
- cmddatalong[18] = jtagarm7tdmi_nop( 0);
- cmddatalong[19] = jtagarm7tdmi_nop( 0);
- cmddatalong[20] = jtagarm7tdmi_nop( 0);
- return registers;
+ jtagarm7tdmi_nop( 0);
+}
+
+//! Set all registers from cmddatalong[0-15]
+void jtagarm7tdmi_set_registers() { //FIXME: BORKEN... TOTALLY TRYING TO BUY A VOWEL
+ debughex32(ARM_INSTR_CLOBBEREGS);
+ jtagarm7tdmi_nop( 0);
+ debughex32(jtagarm7tdmi_instr_primitive(ARM_INSTR_CLOBBEREGS,0));
+ jtagarm7tdmi_nop( 0);
+ jtagarm7tdmi_nop( 0);
+ debughex32(jtagarm7tdmi_instr_primitive(0x40,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x41,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x42,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x43,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x44,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x45,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x46,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x47,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x48,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x49,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x4a,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x4b,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x4c,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x4d,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x4e,0));
+ debughex32(jtagarm7tdmi_instr_primitive(0x4f,0));
}
//! Retrieve the CPSR Register value
unsigned long jtagarm7tdmi_get_regCPSR() {
unsigned long retval = 0;
- cmddatalong[1] = jtagarm7tdmi_nop( 0); // push nop into pipeline - clean out the pipeline...
- cmddatalong[2] = jtagarm7tdmi_instr_primitive(ARM_INSTR_MRS_R0_CPSR, 0); // push MRS_R0, CPSR into pipeline
- cmddatalong[3] = jtagarm7tdmi_nop( 0); // push nop into pipeline - fetched
- cmddatalong[4] = jtagarm7tdmi_nop( 0); // push nop into pipeline - decoded
- cmddatalong[5] = jtagarm7tdmi_nop( 0); // push nop into pipeline - executed
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - clean out the pipeline...
+ debughex32(jtagarm7tdmi_instr_primitive(ARM_INSTR_MRS_R0_CPSR, 0)); // push MRS_R0, CPSR into pipeline
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - fetched
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - decoded
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - executed
retval = jtagarm7tdmi_nop( 0); // recover 32-bit word
- cmddatalong[6] = retval;
+ debughex32(retval);
return retval;
}
unsigned long jtagarm7tdmi_set_regCPSR(unsigned long val) {
unsigned long retval = 0;
- cmddatalong[1] = jtagarm7tdmi_nop( 0); // push nop into pipeline - clean out the pipeline...
- cmddatalong[1] = jtagarm7tdmi_instr_primitive(ARM_INSTR_MSR_cpsr_cxsf_R0, 0); // push MSR cpsr_cxsf, R0 into pipeline
- cmddatalong[2] = jtagarm7tdmi_nop( 0); // push nop into pipeline - fetched
- cmddatalong[3] = jtagarm7tdmi_nop( 0); // push nop into pipeline - decoded
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - clean out the pipeline...
+ debughex32(jtagarm7tdmi_instr_primitive(ARM_INSTR_MSR_cpsr_cxsf_R0, 0)); // push MSR cpsr_cxsf, R0 into pipeline
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - fetched
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - decoded
retval = jtagarm7tdmi_instr_primitive(val, 0);// push 32-bit word on data bus
- cmddatalong[5] = jtagarm7tdmi_nop( 0); // push nop into pipeline - executed
- cmddatalong[4] = retval;
+ debughex32(jtagarm7tdmi_nop( 0)); // push nop into pipeline - executed
+ debughex32(retval);
return(retval);
}
}
//! Set Program Counter
-unsigned long jtagarm7tdmi_setpc(unsigned long adr){
- return jtagarm7tdmi_set_register(ARM_REG_PC, adr);
+void jtagarm7tdmi_setpc(unsigned long adr){
+ jtagarm7tdmi_set_register(ARM_REG_PC, adr);
}
//! Halt CPU - returns 0xffff if the operation fails to complete within
unsigned long jtagarm7tdmi_haltcpu(){ // PROVEN
int waitcount = 0xfff;
+/******** OLD WAY ********/
// store watchpoint info? - not right now
eice_write(EICE_WP1ADDR, 0); // write 0 in watchpoint 1 address
eice_write(EICE_WP1ADDRMASK, 0xffffffff); // write 0xffffffff in watchpoint 1 address mask
eice_write(EICE_WP1DATA, 0); // write 0 in watchpoint 1 data
eice_write(EICE_WP1DATAMASK, 0xffffffff); // write 0xffffffff in watchpoint 1 data mask
- eice_write(EICE_WP1CTRL, 0x100); //!!!!! WTF! THIS IS SUPPOSED TO BE 9 bits wide?!? // write 0x00000100 in watchpoint 1 control value register (enables watchpoint)
- eice_write(EICE_WP1CTRLMASK, 0xfffffff7); //!!!!! WTF! THIS IS SUPPOSED TO BE 8 bits wide?!? // write 0xfffffff7 in watchpoint 1 control mask - only detect the fetch instruction
+ eice_write(EICE_WP1CTRL, 0x100); // write 0x00000100 in watchpoint 1 control value register (enables watchpoint)
+ eice_write(EICE_WP1CTRLMASK, 0xfffffff7); // write 0xfffffff7 in watchpoint 1 control mask - only detect the fetch instruction
+/***************************/
+
+/******** NEW WAY *********/
+// eice_write(EICE_DBGCTRL, JTAG_ARM7TDMI_DBG_DBGRQ); // r/o register?
+/****************************/
// poll until debug status says the cpu is in debug mode
while (!(jtagarm7tdmi_get_dbgstate() & 0x1) && waitcount-- > 0){
delay(1);
}
+
+/******** OLD WAY ********/
eice_write(EICE_WP1CTRL, 0x0); // write 0 in watchpoint 0 control value - disables watchpoint 0
+/***************************/
+
+/******** NEW WAY ********/
+// eice_write(EICE_DBGCTRL, 0); // r/o register?
+/***************************/
// store the debug state
last_halt_debug_state = jtagarm7tdmi_get_dbgstate();
void jtagarm7tdmihandle(unsigned char app, unsigned char verb, unsigned long len){
register char blocks;
- unsigned int i,val,mlop;
+ unsigned int i,val;
unsigned long at;
jtagarm7tdmi_resettap();
switch(verb){
case START:
//Enter JTAG mode.
- cmddatalong[0] = jtagarm7tdmi_start();
- cmddatalong[2] = jtagarm7tdmi_haltcpu();
+ debughex32(jtagarm7tdmi_start());
+ debughex32(jtagarm7tdmi_haltcpu());
//jtagarm7tdmi_resettap();
- cmddatalong[1] = jtagarm7tdmi_get_dbgstate();
+ debughex32(jtagarm7tdmi_get_dbgstate());
// DEBUG: FIXME: NOT PART OF OPERATIONAL CODE
//for (mlop=2;mlop<4;mlop++){
// jtagarm7tdmi_set_register(mlop, 0x43424140);
//}
/////////////////////////////////////////////
- txdata(app,verb,0xc);
+ txdata(app,verb,0x4);
break;
case JTAGARM7TDMI_READMEM:
case PEEK:
//case JTAGARM7TDMI_WRITEFLASH:
//case JTAGARM7TDMI_ERASEFLASH:
case JTAGARM7TDMI_SET_PC:
- cmddatalong[0] = jtagarm7tdmi_setpc(cmddatalong[0]);
- txdata(app,verb,4);
+ jtagarm7tdmi_setpc(cmddatalong[0]);
+ txdata(app,verb,0);
break;
case JTAGARM7TDMI_GET_DEBUG_CTRL:
cmddatalong[0] = jtagarm7tdmi_get_dbgctrl();
//case JTAGARM7TDMI_SET_WATCHPOINT:
case JTAGARM7TDMI_GET_REGISTER:
jtagarm7tdmi_resettap();
- //cmddatalong[0] = jtagarm7tdmi_get_register(cmddata[0]);
- cmddatalong[0] = test_get_register(cmddata[0]);
- txdata(app,verb,96);
+ val = cmddata[0];
+ cmddatalong[0] = jtagarm7tdmi_get_register(val);
+ txdata(app,verb,4);
break;
- case JTAGARM7TDMI_SET_REGISTER:
+ case JTAGARM7TDMI_SET_REGISTER: // FIXME: NOT AT ALL CORRECT, THIS IS TESTING CODE ONLY
jtagarm7tdmi_resettap();
+ jtagarm7tdmi_set_register(cmddata[0], cmddatalong[1]);
cmddatalong[0] = cmddatalong[1];
- test_set_register(cmddata[0], cmddatalong[1]);
- //jtagarm7tdmi_set_register(cmddata[0], cmddatalong[1]);
- txdata(app,verb,96);
+ txdata(app,verb,4);
break;
case JTAGARM7TDMI_GET_REGISTERS:
jtagarm7tdmi_resettap();
jtagarm7tdmi_get_registers();
- txdata(app,verb,80);
+ txdata(app,verb,64);
+ break;
+ case JTAGARM7TDMI_SET_REGISTERS:
+ jtagarm7tdmi_resettap();
+ jtagarm7tdmi_set_registers();
+ txdata(app,verb,64);
break;
- //case JTAGARM7TDMI_SET_REGISTERS:
case JTAGARM7TDMI_DEBUG_INSTR:
jtagarm7tdmi_resettap();
cmddataword[0] = jtagarm7tdmi_exec(cmddataword[0], cmddataword[1], cmddata[9]);
jtaghandle(app,verb,len);
}
}
+
+
+
+
+/*****************************
+Captured from FlySwatter against AT91SAM7S, to be used by me for testing. ignore
+
+> arm reg
+System and User mode registers
+ r0: 300000df r1: 00000000 r2: 58000000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 000000fc
+ cpsr: 00000093
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000000 spsr_abt: e00000ff
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+>
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Supervisor
+cpsr: 0x00000093 pc: 0x00000100
+System and User mode registers
+ r0: 300000df r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000100
+ cpsr: 00000093
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000000 spsr_abt: e00000ff
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+>
+ step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+> step;arm reg
+target state: halted
+target halted in ARM state due to single-step, current mode: Abort
+cpsr: 0x00000097 pc: 0x00000010
+System and User mode registers
+ r0: 300000e3 r1: 00000000 r2: 00200000 r3: 00200a75
+ r4: fffb0000 r5: 00000002 r6: 00000000 r7: 00200f6c
+ r8: 00000000 r9: 00000000 r10: ffffffff r11: 00000000
+ r12: 00000009 sp_usr: 00000000 lr_usr: 00000000 pc: 00000010
+ cpsr: 00000097
+
+FIQ mode shadow registers
+ r8_fiq: 00000000 r9_fiq: fffcc000 r10_fiq: fffff400 r11_fiq: fffff000
+ r12_fiq: 00200f44 sp_fiq: 00000000 lr_fiq: 00000000 spsr_fiq: f00000fb
+
+Supervisor mode shadow registers
+ sp_svc: 00201f78 lr_svc: 00200a75 spsr_svc: 400000b3
+
+Abort mode shadow registers
+ sp_abt: 00000000 lr_abt: 00000108 spsr_abt: 00000093
+
+IRQ mode shadow registers
+ sp_irq: 00000000 lr_irq: 00000000 spsr_irq: f000003b
+
+Undefined instruction mode shadow registers
+ sp_und: 00000000 lr_und: 00000000 spsr_und: 300000df
+>
+*/
projects / goodfet / blobdiff