topic Re: Install svc function in S32K

Install svc function

smruthi_ramesh — Thu, 20 Feb 2020 00:09:28 GMT

How to install an svc function to call a specific svc handler in for S32K148?

Re: Install svc function

danielmartynek — Fri, 21 Feb 2020 09:23:44 GMT

Please take a look at this thread:

How to make S32K146 M4 Core user mode and supervisor mode switching?

Or you can create a new project in S32 Design Studio for ARM version 2.2, by default, every empty S32K project contains a SVC call.

Regards,

Daniel

Re: Install svc function

smruthi_ramesh — Fri, 21 Feb 2020 17:49:13 GMT

Hi Daniel

I tried to do the same, but it is not working. I have to implement system calls using the SVC handler. Using the SVC handler provided in the project, I am not able to extract the SVC number from the instruction "SVC 0". Can you advice on how to proceed?

Also I am facing the Device is secure, erase to unsecure issue with the S32K148 Eval board. It was working well and suddenly happened while using the PE micro debugger. I tried to erase memory but the board is not getting programmed. I did take a look at the following posts, but none of them worked: device is secure. erase to unsecure?, https://community.nxp.com/thread/461300 , Any workaround?

Regards,

Smruthi

Re: Install svc function

smruthi_ramesh — Tue, 25 Feb 2020 00:35:42 GMT

I figured it out. Thanks