Re: OMAP3530 ISP irqs disabled

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Bastian Hecht wrote:
> 
> I enabled isr debugging (#define ISP_ISR_DEBUG) and see that only 1
> HS_VS_event is generated per second. 1fps corresponds to my clocking,
> so 1 vs per second is fine. But shouldn't I see about 2000 hs
> interrupts there too? HS_VS_IRQ is described as "HS or VS synchro
> event".

HS_VS_IRQ is _either_ VS _or_ HS interrupts, but not both.  The SYNC_DETECT bits in ISP_CTRL determines which.  For writing into memory, the ISP only needs to react per frame, not per line, so it is set up to trigger on VS.

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