Compiler/TMS320C5505: Advisory CPU_116

Kaka

Part Number: TMS320C5505

Tool/software: TI C/C++ Compiler

Hi TI Experts,

Please let me confirm the following question.
[Question]
My customer was faced the following warning. How should customer handle this issue? Can they ignore this warning?
If yes, would you please teach me the way to not show this message at compiling?

*****************
The instruction information in this loop has been disrupted(possibly by an intervening initialized section). The assembler assumes that this loop may contain a nested localrepeat that may cause execution to terminate if an iteration of a nested localrepeat is interrupted; (see theC55x silicon exceptions errata; Advisory CPU_116)
*****************

They have used the following environment.

　　　　　DSP/BIOS：5.42.01.09

　　　　　CSL：3.06

　　　　　Complier Version：4.4.1

　　　　　CCS　Version：7.3.0

If you have any questions, please let me know.

Best regards.
Kaka

over 6 years ago

0 Kaka over 6 years ago

Guru 24520 points

Hi

When my customer changed the compile option from cpu2.x to C5505, the CCS did not show this CPU_116 warning.
Does this Errata revise from CPU revision 3.3?

Best regards.
Kaka

0 Yordan Kovachev over 6 years ago in reply to Kaka

TI__Guru**** 161600 points

I've notified the RTOS team. Their feedback will be posted directly here.

Regards,
Yordan

0 Kaka over 6 years ago in reply to Yordan Kovachev

Guru 24520 points

Hi Yordan,

Thank you for your notification.
I am waiting for your team feedback.

Best regards.
Kaka

0 Mukul Bhatnagar over 6 years ago in reply to Kaka

TI__Guru* 80975 points

Kaka-san
Customer should have used cpu revision 3.3 in the compile option, as that is the right revision for C5505. If the compiler warning is no longer getting generated , I have to assume that the errata does not apply to this revision of the CPU.

Let us know if you have any follow up questions.

0 Kaka over 6 years ago in reply to Mukul Bhatnagar

Guru 24520 points

Hi Mukul,

Thank you for your advice. According to the following document, C5505 did not describe about the newer devices like C5515, C5505, C5535 on table1.
www.ti.com/.../spru652g.pdf
I would like to be clear whether this problem apply to the newer device.

Best regards.
Kaka

0 Mukul Bhatnagar over 6 years ago in reply to Kaka

TI__Guru* 80975 points

Hi Kaka-san
Yes that doc was never updated to reflect the newer devices. No plan to refresh that doc.
From looking at internal archives, i see cpu_116 fixed on cpu rev 3.3 core.

Regards
Mukul

0 Kaka over 6 years ago in reply to Mukul Bhatnagar

Guru 24520 points

Hi Mukul,

Thank you for your response. I got it! I will inform this to our customer.

Best regards.
Kaka

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Compiler/TMS320C5505: Advisory CPU_116