TMS570LC4357: Stuck at b undefEntry

Kishor Vitalkar

Prodigy 120 points

Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN

Hi,

I am Kishor my question is about RTOS stuck at "undefEntry"

I am trying to execute demo example "example_freeRTOSBlinky.c" on TMS570LC43 board.

When I flash the code on board and pause the execution I can see the PC is stuck at b undefEntry.

Can you please guide me to fix this issue.

I do not have good idea about .cmd and sys_intvecs.asm files.

This is the code in "HL_sys_intvecs.asm" file

.sect ".intvecs"
.arm
;-------------------------------------------------------------------------------
; import reference for interrupt routines

.ref _c_int00
.ref vPortSWI
.ref phantomInterrupt
.def resetEntry
;-------------------------------------------------------------------------------
; interrupt vectors
resetEntry
b _c_int00
undefEntry
b undefEntry
b vPortSWI
prefetchEntry
b prefetchEntry
dataEntry
b dataEntry
b phantomInterrupt
ldr pc,[pc,#-0x1b0]
ldr pc,[pc,#-0x1b0]

Kind Regards,

Kishor

over 4 years ago

0 Frank Livingston over 4 years ago

TI__Mastermind 29858 points

Hi, our expert is out of the office for several days. Please expect a delayed response.

0 QJ Wang over 4 years ago in reply to Frank Livingston

TI__Guru**** 199096 points

Hi Kishor,

The processor takes the undefined instruction exception when it encounters an instruction that is undefined in the appropriate version of the ARM instruction set.

When a Privileged mode is required, an instruction that attempts to access a register in a nonprivileged mode takes the Undefined Instruction exception. Attempts to read or write the ARM System Control Register from User mode results in an Undefined exception. Running VFP instructions when the VFP is disabled generates Undefined exception, etc.

0 Kishor Vitalkar over 4 years ago in reply to QJ Wang

Prodigy 120 points

Hi QJ Wang,

I am trying to execute the "example_freeRTOSBlinky.c" example code given in halcogen, there is no modification from my side.

I am not able to find where this exception is happening. After flashing the code it get stuck at the given line number I am not able to put any break point.

Its happening even before execution of "void _c_int00(void)" function.

Can you please suggest me possible modifications to fix this issue?

Regards,

Kishor