Topic : Unexpected DIV/DIVW instruction result in ISR

Forum : ST7/STM8

Original Post
Post Information Post
February 22, 2011 - 8:05am
Guest

hello, I'm new here this forum.

I found an errata related to STM8 series in the latest document.
(CD00237242, REV.10, http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/ERRATA_SHEET/CD00237242.pdf
)

In section 1.1.3, "Unexpected DIV/DIVW instruction result in ISR" shows difficult problem to be found in our current application.

Workaround 1 is affordable and acceptable, i think. but who knows the countermeasure is applied to the latest raisonance C compiler? or does they have a plan to fix this problem?

Your opinion would be appreciated. Regards
Replies
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February 22, 2011 - 9:13am
Raisonance Support Team

Hi,

We developed a specific CLEANIRQDIVFLAG compiler directive in order to correct this problem.

This new directive will be available in the next RKit-STM8 release, which is still under validation, so it is just few weeks away from hitting the streets.

Let us know if you need some more information on this topic.
Best Regards,
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February 25, 2011 - 1:17am
Guest

Hi, Thanks for your reply.

I'm now checking my developed code by disassembling if the relevant code is generated by compiler or not.

if i need some information about this problem, I'll post it after validation.
And i'm looking forward to receive the updated RKit8. :)

Regards