topic Re: debug iMX.6 with trace32 in i.MX Processors

debug iMX.6 with trace32

xiechangwu — Thu, 11 Jul 2019 11:27:50 GMT

I'm using Lauterbach Trace32 debugger to debug iMX6Q， linux 3.0.35;

The linux sytsem startup with uboot&uImag, then load vmlinux with /nocde option;

System may cause prefetch abort at many normal breakpoints, anyone can help me?

Errors before kernel crash:Unhandled prefetch abort: breakpoint debug exception (0x002) at 0x2ab05354

T32 scripts:

SYStem.down
SYStem.CPU
IMX6QUAD CORE.ASSIGN 1
SYStem.Option ResBreak OFF
SYStem.Option WaitReset 1.3s
SYStem.Option DACR ON ; give Debugger global write permissions
TrOnchip.Set DABORT OFF ; used by Linux for page miss!
TrOnchip.Set PABORT OFF ; used by Linux for page miss!
TrOnchip.Set UNDEF OFF ; my be used by Linux for FPU detection ;
SYStem.Option MMUSPACES ON ; enable space ids to virtual addresses
system.JtagClock 1MHz
Trace.METHOD Onchip
SYStem.attach
SETUP.IMASKASM ON ; lock interrupts while single stepping

Re: debug iMX.6 with trace32

b36401 — Fri, 12 Jul 2019 02:46:01 GMT

We can suggest you common Lauterbach documentation:
http://www2.lauterbach.com/pdf/app_t32start.pdf

Re: debug iMX.6 with trace32

mahi — Fri, 12 Jul 2019 08:57:44 GMT

You have paid a lot of money for your debug interface and also for support, so you are free to make use of it.

--> TRACE32® Technical Support Contacts

--> TRACE32® Support Request / Bug Report Form

I have always got really good help from them (mostly more than I expected).