Power ManagementのトピックRe: FS6500 SBC disable Watchdog and RSTB during flashing process

FS6500 SBC disable Watchdog and RSTB during flashing process

fereyes08 — Wed, 13 May 2020 14:24:13 GMT

I have the following hardware configuration FS6500 and MPC5777C. My application configures the SBC to have INIT_FSSM and INIT_FAULT reaction to trigger FS0B and RSTB as well as the FCCU lines ERROR_0 and ERROR_1 (IO_23) on the SBC side.

My question is: What can I do to disable the SBC watchdog if I want to go to a Programming state (this will jump usually to a bootloader) to execute ERASE and FLASH process?

Also, is it possible to disable the WD operation at anytime?

Thanks!

Federico

Re: FS6500 SBC disable Watchdog and RSTB during flashing process

guoweisun — Thu, 14 May 2020 02:55:28 GMT

If you want to disable the watch dog,please enter into debug mode of SBC.

Re: FS6500 SBC disable Watchdog and RSTB during flashing process

fereyes08 — Thu, 14 May 2020 12:57:59 GMT

Hello,

Thanks for your reply. Unfortunately DEBG mode requires a HW line to be pulled and a POR. In our application we are in RUN mode and at some point of time either for flashing purposes or after run (prepare the ECU to sleep) we want to disable the Q&A or the RESET of the FS6500.

Thanks!

Re: FS6500 SBC disable Watchdog and RSTB during flashing process

guoweisun — Fri, 15 May 2020 23:34:13 GMT

Understand your question,but I am afraid that is difficult to control disable watchdog during the system active.