TMS320F28377D: Boot Flow in CPU2 After CPU1 Triggering the SCCRESET

Chen-Chih Liu

Dear experts,

As I understand it, if SCCRESET is triggered on CPU1, CPU2 will also be reset.

If I trigger SCCRESET from CPU1, what is the boot flow of CPU2 after its reset?

Since the user manual describes the CPU2 boot ROM action as "No Action," what will the boot flow be after the reset? Will CPU2 start from the start address (for example, 0x80000) and then jump to the entry point symbol (c_int00)?

Thanks and Regards,

C.C.Liu

over 1 year ago

0 Luke Jones over 1 year ago

TI__Mastermind 28580 points

Hi C.C.

Based on my understanding of the documentation CPU2 will not reset if there is an SCCRESET on CPU1. Where did you get this information?

Thank you,

Luke

0 Chen-Chih Liu over 1 year ago in reply to Luke Jones

Intellectual 340 points

Hello Luke,

I refer to the table below.

Indeed, when I trigger SCCRESET on CPU1, CPU2 will be reset simultaneously.

What I'm curious about is CPU2's boot flow after the reset.

Thanks,

Best Regards,

C.C.Liu

0 Luke Jones over 1 year ago in reply to Chen-Chih Liu

TI__Mastermind 28580 points

Hi C.C.

I've reached out to our other SysCtrl experts to confirm this, I will get back to you within the next couple of days.

Thank you,

Luke

+1 Luke Jones over 1 year ago in reply to Luke Jones

TI__Mastermind 28580 points

Hi C.C.

I discussed this with our security and Boot-ROM experts, the CPU2 Boot ROM action after CPU1 SCCRESET should be "Continue Default Boot Flow". We will correct this in the next revision of the TRM.

Thank you,

Luke

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TMS320F28377D: Boot Flow in CPU2 After CPU1 Triggering the SCCRESET