DSS Error Handling

Brad Griffis

I'm using DSS for analyzing issues on AM335x. I would like to make the scripts more robust. For example, if one of the debug clocks is turned off I end up with an error like this:

C:\Users\a0193370\workspace_v6_0\am335x-dss-scripts\am335x-ddr-analysis.dss
Error reading memory: Errors during memory.readData(): Address: 0x4c000008 Error: 0x1 (C:\Users\a0193370\workspace_v6_0\am335x-dss-scripts\am335x-ddr-analysis.dss#38)

Is there a way to gracefully catch this type of error so that I can do things like close the file I opened, attach to a different CPU, etc?

over 9 years ago

0 Ki over 9 years ago

TI__Guru**** 462941 points

Hi Brad,
All DSS APIs will throw an exception when an error occurs. You can catch the the exception and handle them as you wish:
processors.wiki.ti.com/.../Debug_Server_Scripting

Thanks
ki

0 Brad Griffis over 9 years ago in reply to Ki

TI__Guru*** 125430 points

Quick follow-up... Are exceptions always fatal? In the example, it explicitly calls "quit" but in my case I would like to continue on despite the error. Is there something I need to do to make it continue?

0 Brad Griffis over 9 years ago in reply to Brad Griffis

TI__Guru*** 125430 points

Oops, I just noticed that it does in fact continue on. Nevermind! It's working exactly the way I need it to work... (Sorry, I hit the error a second time, but there are a few registers in the same domain that I expect are unreadable in DeepSleep0.)

0 Ki over 9 years ago in reply to Brad Griffis

TI__Guru**** 462941 points

Yes, sorry for the confusion. In the example on the wiki, I meant to say that you can gracefully quit by calling a custom routine to do some clean up instead of the script just bailing after an unhandled exception. I'll update the wiki to make that more clear

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DSS Error Handling