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Discussion Groups | TMS320C55x | c5510, DMA Sync Event Polarity

Technical discussions about the TI C55x DSPs (including the c5501, c5502, c5503, c5507, c5509, c5510 and OMAP5910).

  

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c5510, DMA Sync Event Polarity - smiffoz - May 23 8:21:10 2007



Hi all,

I'm trying to control a DMA transfer using Ext Int 5 as the DMA Sync 
Event.

It's my understanding that these DMA sync events are falling edge 
triggered. Can anyone confirm this ?

Unfortunately, the device supplying the Sync event has the opposite 
polarity i.e. It is active high, and putting an inverter in the HW 
design at this stage is a real pain.

Does anyone know if the polarity of the DMA Sync Events (or 
interrupt lines) on the c5510 is programmable ?

Thanks in advance for any info.

Cheers,

Scottie



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