MSP430FR2476: Security violation (BOR)

Hi Shota,

For the security violation, you can refer to below thread:

https://e2e.ti.com/support/microcontrollers/msp-low-power-microcontrollers-group/msp430/f/msp-low-power-microcontroller-forum/984146/msp430fr6989-what-are-the-security-violations-which-cause-a-bor 

Maybe they need to check the CPU access address and DMA access address.

B.R.

Sal

Hi Sal,

Thanks for your reply. The customer is asking additional questions.

1. The shared thread says "security violation triggers a BOR when protected areas of memory such as the protected BSL, boot code, etc. are accessed". When BOR is triggered due to security violation, is there any way to find address which caused BOR?
2. What is definition of "access"? Does it include both write/read? Or it doesn't include read? etc.

Best regards,

Shota Mago

Hi Shota,

Shota Mago said:

When BOR is triggered due to security violation, is there any way to find address which caused BOR?

When trigger a BOR, then it will reset the device, and there is no expected CPU register / stack could maintain the address it access.

While below external link shows the method to do analysis:

https://stackoverflow.com/questions/28943839/msp430-random-resets-with-security-violation-bor 

Shota Mago said:

What is definition of "access"? Does it include both write/read? Or it doesn't include read? etc.

It looks like contains the write and read.

B.R.

Sal