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Re: how to implement EDF scheduling in eCos
Thank you John!
Per your advice I changed cyg_tick_count_t to cyg_count32 in
cyg_edf_sched_info structure fields. As:
> typedef struct
> {
> cyg_count32 deadline; /* abs ddl of the thread, 2b changed to rel */
> cyg_count32 wcet; /* Worst Case Execution time of the thread */
> cyg_count32 period; /* Call frequency of the thread */
> } cyg_edf_sched_info;
But, it couldn't solve the problem, still I have the same output.
> *** TRACE: edf.cxx [595] <nofunc>() 'thread_edf_info->deadline = 16688624'
> *** TRACE: edf.cxx [596] <nofunc>() 'thread_edf_info->wcet = 15691760'
> *** TRACE: edf.cxx [597] <nofunc>() 'thread_edf_info->period = 15691760'
Any other hints?
Thanks,
Nodir.
On 24 January 2010 16:45, John Dallaway <john@dallaway.org.uk> wrote:
>
> cyg_tick_count_t is a 64-bit unsigned integer. You are treating these
> values as 32-bit signed (using "%d") in your CYG_TRACE() calls.
>
> I hope this helps...
>
> John Dallaway
> eCOs maintainer
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