Discussion Groups | TMS320C3x | TI TMS320 self check utility c3xcheck.asm help
Technical discussions about the TI C3x DSPs (including the C31, C32 and C33 DSPs).
TI TMS320 self check utility c3xcheck.asm help - Glock - Apr 23 8:20:49 2008
Hello... I am having an issue with a TMS320C33 and I would appreciate some guidance. I am using the TI utility c3xcheck.asm and it is integrated into my boot-loader code. I am seeing failures at -30C to -40C and the self check utility returns a failure code for "ALU Test Integer Error". Is there any way this can be related to anything external to the DSP? I am having a hard time believing that an ALU error can be something outside the chip. I have had some chips returned to TI for analysis and they said they checked out fine, but something just does not seem right. Thank you for your assistance. Glock ------------------------------------ OMAP35x EVM jump-starts low-power apps ------------------------------------ The modular and extensible OMAP35x Evaluation Module (EVM) enables developers to start building applications based on the OMAP35x architecture:http://www.DSPRelated.com/omap35x You can post a message or access and search the archives of this group on DSPRelated.com: http://www.dsprelated.com/groups/c3x/1.php _____________________________________
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Re: TI TMS320 self check utility c3xcheck.asm help - Jeff Brower - Apr 23 13:15:52 2008
> Hello... I am having an issue with a TMS320C33 and I would appreciate > some guidance. I am using the TI utility c3xcheck.asm and it is > integrated into my boot-loader code. I am seeing failures at -30C to > -40C and the self check utility returns a failure code for "ALU Test > Integer Error". The C33 data sheet shows an industrial grade version spec'ed to -40C. Is that what you have? Or do you have the commercial grade? > Is there any way this can be related to anything external to the DSP? > I am having a hard time believing that an ALU error can be something > outside the chip. I have had some chips returned to TI for analysis > and they said they checked out fine, but something just does not seem > right. If your chips are not spec'ed to -30C, then results would be undefined. A failure could manifest as anything... an ALU error, an internal memory error... who knows. -Jeff ------------------------------------ OMAP35x EVM jump-starts low-power apps ------------------------------------ The modular and extensible OMAP35x Evaluation Module (EVM) enables developers to start building applications based on the OMAP35x architecture:http://www.DSPRelated.com/omap35x You can post a message or access and search the archives of this group on DSPRelated.com: http://www.dsprelated.com/groups/c3x/1.php _____________________________________
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