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SPI DMA recover from data shift

bob
Associate II
Posted on December 11, 2014 at 16:26

The original post was too long to process during our migration. Please click on the attachment to read the original post.
4 REPLIES 4
ilmars
Associate II
Posted on December 11, 2014 at 17:00

Better to implement it right rather than implement workaraound of bad implementation

Posted on December 11, 2014 at 17:24

This is why packets normally have preamble/sync data at the front.

You might want to address the Cortex-M3 hazard in your IRQHandler. Qualify the source of the interrupt, and clear it much earlier, so it isn't the last thing it does before it returns.
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bob
Associate II
Posted on December 12, 2014 at 08:53

Hi Ogden1, you are right!

However, Iam still looking for an expert who can point out the error I made.

Can you be more specific about what to change?

bob
Associate II
Posted on December 12, 2014 at 08:54

Clive1, thanks for the reply, whant do you mean by '' address the Cortex-M3 hazard''?