Support Question
Bill Gatliff
bgat at billgatliff.com
Thu May 20 13:18:06 EDT 2010
On 05/19/2010 12:06 PM, Amit kumar wrote:
>
>
> Therefore I don;t have any idea from where the delay is being
> introduced. Is it a problem of OS or there is nythng else involved .
> Kindly guide me through this . I need urgent help .... any information
> abt delay is welcome.
The SPI drivers usually have a kernel thread to deal with transmissions
and chip selects. Make sure that kernel thread is on the RT scheduler,
otherwise it gets prioritized along with user applications--- which
would explain the delay you are seeing.
b.g.
--
Bill Gatliff
bgat at billgatliff.com
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