TMS320F28388D: Is there a way to determine if an access violation has occurred as defined by any of the CPU1_PERIPH_AC_REGS?

Gus Martinez

Mastermind 30471 points

Part Number: TMS320F28388D

Is an access violation reported in some status register or flag?

Posting question on behalf of customer.

over 3 years ago

0 Ashwini Athalye over 2 years ago

TI__Expert 7715 points

Hi Gus, Can you elaborate on what kind of access violation? Thanks, Ashwini.

0 Gus Martinez over 2 years ago in reply to Ashwini Athalye

TI__Mastermind 30471 points

More input from customer:

"Specifically I would be interested for EPWMX_AC registers, for example if I limit the access for CPU and allow the accesss for CLA. If the CPU tries to do a write access, would this result in a violation and can be somehow monitored (through a status register or a flag?"

+1 Ashwini Athalye over 2 years ago in reply to Gus Martinez

TI__Expert 7715 points

Hi Gus,

If CPU1 does not have access, then reads will return 0 and writes will be ignored. No Flags are set and there is no interrupt generated. However if an interrupt was to be generated, the ERAD module can be configured to issue an interrupt when CPU reads/writes peripheral like EPWM registers. For more information please refer to Section 2.2 of the ERAD Application Report:

www.ti.com/.../spracm7.pdf

Thanks,

Ashwini

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28388D: Is there a way to determine if an access violation has occurred as defined by any of the CPU1_PERIPH_AC_REGS?