lpcware

GPDMA : Using 1 DMA req for 2 Channels---DMA req SYNC register?

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by blueo on Thu Feb 05 22:38:40 MST 2015
Hi all,

1)
I need to know if it is possible to specify 1 DMA Request for more than 1 channels?

I want to set DMAMUXPER10=0x2(SCT DMA Request 0) and then assign 0x7(SCT DMA request 0) to 2 of Channel Config registers.

I know it is not possible for STM32F40x as ST datasheet says, but NXP datasheets are not as well-written.

2)
There is a register to enable/disable Sync logic for each of the 16 DMA requests.I don't understand it clearly as I couldn't find more info on that besides a brief description of the register in UM.What does it do exactly?

regards

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