MPC5xxx中的主题 MPC5606B - Shared data between application and bootloader

MPC5606B - Shared data between application and bootloader

jakubhusak — Thu, 23 Nov 2017 09:46:55 GMT

Hello,

is there a register that could be used to share data between two applications (bootloader and application)? I need a place where I could put a message to be passed from application to bootloader when the reset is intentional and software initiated. In other words, I need a place that is guaranteed to be zeroed on POR and not initialized for other reset reasons.

Thanks

Jakub

Re: MPC5606B - Shared data between application and bootloader

petervlna — Thu, 23 Nov 2017 13:35:34 GMT

Hi,

Please see the core reference manual:

https://www.nxp.com/docs/en/reference-manual/e200z0RM.pdf?fsrch=1&sr=1&pageNum=1

chapter 2.4.4 Reset Settings

You can use GPRS, however they are undefined on POR. You can easily put a check of POR and initialize it to 0 in you SW.

Peter

Re: MPC5606B - Shared data between application and bootloader

jakubhusak — Thu, 23 Nov 2017 13:39:10 GMT

Thanks,

I decided to use bit different approach, but this would work too.

Dik

Jakub