TMS320F28P650DK: ADC setup will cause "Intterrupt_illegalOperationHander."

Steven Xu

Part Number: TMS320F28P650DK
Other Parts Discussed in Thread: LAUNCHXL-F28P65X, SYSCONFIG

Hi, Experts

I encountered some issues with my project running on the LAUNCHXL-F28P65X. my project base on demo project"ipc_ex4_msgqueue_sysconfig_multi" and plan to add ADC Module, PWM Module and ADC ISR.

issue 1: the code " DEVICE_DELAY_US(1000);" in setup ADC function will cause project to enter "Intterrupt_illegalOperationHander" after running.

issue 2: after I delete code" DEVICE_DELAY_US(1000);" the function ADC_ISR will cause "Intterrupt_illegalOperationHander." after CPU02 start to run.

over 1 year ago

0 Omer Amir over 1 year ago

TI__Mastermind 30185 points

Hello Steven,

Steven Xu said:
my project base on demo project"ipc_ex4_msgqueue_sysconfig_multi" and plan to add ADC Module, PWM Module and ADC ISR.

Since you're starting with an example project, it looks like you should have all the right paths and libraries included; are there any warnings you get when compiling the project? Are you able to step through your code and get into the delay function at all? If not, please provide a screenshot of the Disassembly view so I can see what the compiler created.

Steven Xu said:
issue 2: after I delete code" DEVICE_DELAY_US(1000);" the function ADC_ISR will cause "Intterrupt_illegalOperationHander." after CPU02 start to run.

Are you able to isolate the location where the illegal ISR gets jumped to? Is it a certain point in your code? If you don't know for certain, you can always use the RPC (return program counter) register to see where it jumped from and keep backtracking from there using breakpoints.