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dma multicast?

Posted:
Fri Aug 22, 2014 11:24 am
by notzed
So according to an earlier response from Andreas there was some dma multicast example written but it hasn't shown up anywhere (that i can find).
I have tried a few times myself with no success, but I would be interested in experimenting with this feature - if it is functional.
Maybe during the current sdk overhaul work it can be added to the TODO list?
Re: dma multicast?

Posted:
Mon Aug 25, 2014 9:42 am
by timpart
Based on this it should work so long as you avoid the chip problem with multicast messages not going south and don't use double word transfers. You can't combine it with message mode interrupt at the far end though (clash of ctrlmode usage). Not sure if anyone has actually done DMA and multicast. I've only seen an example where written by core processor, not DMA.
Tim
Re: dma multicast?

Posted:
Tue Aug 26, 2014 12:35 am
by notzed
Re: dma multicast?

Posted:
Tue Aug 26, 2014 7:45 am
by timpart
Can't find the example. Memory must be playing tricks, sorry. Only other thought that comes to mind is that since the CTRLMODE is in the CONFIG register the compiler might be saving and restoring it somewhere in the surrounding function.
Tim
Re: dma multicast?

Posted:
Thu Aug 28, 2014 2:41 am
by notzed