MPC5xxxのトピックRe: Managing BAF in MPC5777M

Managing BAF in MPC5777M

paulodasilvapin — Wed, 11 Oct 2017 14:40:34 GMT

Hello,

With DO178 level A, we need to master all executed code in the platform.

1°) Is it possible to have the source code of the BAF ?

2°) if not, is it possible to overrun the BAF code and run our code defined at our own reset address. Maybe, there is a way to change the SSCM_PSA register ?

3°) Peter Vlna has answered in MPC5777M BAF that it is possible to erase the BAF sector. If I would like to put our customer boot, how can I do that ?

Thank you

Paulo.

Re: Managing BAF in MPC5777M

petervlna — Thu, 12 Oct 2017 07:44:27 GMT

Hi,

1.) You can dump is from micro. It is written in assembler.

2.) SSCM_PSA is read only register.

3.) Don't do that. If you erase BAF your micro will be unusable until you load it back.

Peter

Re: Managing BAF in MPC5777M

petervlna — Thu, 12 Oct 2017 08:22:17 GMT

Hi again,

I had a chat with system engineer for MPC5777M and he told me that we can share BAF source code.

But it is under NDA agreement. So you have to contact FAE/sales/distributor assigned to your company who will help you sign NDA. If you have already signed NDA then contact person who assisted you with NDA signature.

Peter