[ECOS] Question about "allow per-thread timer" selection option in eCos

[ECOS] Question about "allow per-thread timer" selection option in eCos

[Huang Qiang]

Can cyg_thread_delay() routine work withourt allow per-thread timer option
(in eCos configuration) selected?

I try to implement cyg_thread_delay() with allow per-thread timer enabled
but the program halted forever but when I remove the allow per-thread timer
selection in eCos configuration the program can work with
cyg_thread_delay(). ( But it seems no actual delay in the thread which call
the cyg_thread_delay() ) What's wrong?

Thanks a lots

james

Re: [ECOS] Question about "allow per-thread timer" selection option in eCos

[Jonathan Larmour]

Huang Qiang wrote:
> 
> Can cyg_thread_delay() routine work withourt allow per-thread timer option
> (in eCos configuration) selected?
> 
> I try to implement cyg_thread_delay() with allow per-thread timer enabled
> but the program halted forever but when I remove the allow per-thread timer
> selection in eCos configuration the program can work with
> cyg_thread_delay(). ( But it seems no actual delay in the thread which call
> the cyg_thread_delay() ) What's wrong?

With per-thread timers disabled, cyg_thread_delay() does absolutely
nothing.

Are you sure you're calling cyg_thread_delay with the correct units? It's
clock ticks, not seconds/milliseconds/etc.

Have you used or looked at the twothreads example program? That uses
cyg_thread_delay.

Jifl
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