S32G2 How to trigger a destructive reset from software ? (with RTD)

SSyb — Tue, 21 Feb 2023 13:45:26 GMT

I have a question to trigger a destructive reset from within the software on an S32G2xx device.
I work with an S32G274A on the RDB2 board, my application is a multicore (M7_0 and M7_1) classic AUTOSAR stack, the A53s I don't use (and it is ok that the complete SoC is reset)
I use the SW32G_RTD_4.4_3.0.2_HF01 under my AUTOSAR BSW stack, with Tresos 27.1.0.

When performing the shutdown/reset sequence, at the end there is a callout were we usually (on other targets) call the AUTOSR API Mcu_PerformReset(). In Tresos, I have configured the Mcu Reset Module to do a destructive reset.

Problem: after the call my software is still stuck in the end of the Os Shutdown, but a proper reset and reboot I don't see.

What I see in the Mcu code and during debugging is:
- at some point the MC_ME_MODE_CONF register is filled,
- then the UPD register is set,
- then the control keys are written
after this the reset should happen in my humble opinion, but the software gets stuck in an OS shutdowen loop after this.

I am not writing anything else to any other MC_ME register (was hoping the reset could be performed only with AUTOSAR / MCAL APIs.) But in the callout I have the freedom to do so if required.

Questions:

1) In General: does a destructive reset lead me though the BootROM again ? or Can I trigger to go through the BootROM again from SW ?

2) is Mcu_PerformReset() the correct way ? or do I need to swith a mode with the Mcu_SetMode() API ? or something else ?

3) In case I need to use Mcu_SetMode(): Is there an example for the configuration (in Tresos) ? I played a little bit with it, but without success so far. For instance, I am not really clear whether the "Boot Address" should be the address of the Reset_Handler, or the start of the int vec table ? I also naturally thought to activate the "Core reset Enable Checkbox", but that triggers an error in the Tresos tool.

any hints welcome

best regards,
Stefan

Re: S32G2 How to trigger a destructive reset from software ? (with RTD)

SSyb — Fri, 24 Feb 2023 15:03:39 GMT

oook, it works now. Both with Mcu_PerformReset() and Mcu_SetMode(). Maybe it eas the debugger disturbing the process, it works fine when bookting from Flash.

Topic closed

topic Re: S32G2 How to trigger a destructive reset from software ? (with RTD) in Processor Expert Software

S32G2 How to trigger a destructive reset from software ? (with RTD)

Re: S32G2 How to trigger a destructive reset from software ? (with RTD)