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C6657 Edma question

Giuseppe Di Giulio
Prodigy 40 points

Hi

I have a question about edma on C6657

I've succesfully run TI example under "[INSTALL_DIR]\edma3_lld_02_12_00_20\examples\edma3_driver\evm6657\sample_app"

The example runs a test (see function edma3_test) that open a channel using EDMA3_DRV_requestChannel and then close it using EDMA3_DRV_freeChannel

Every time the test is called, requestChannel and closeChannel are called

What I want to know, is it possible to call EDMA3_DRV_requestChannel once(using always the same channel) and then call EDMA3_DRV_freeChannel once only at the end of the program???

I tried to do that and only the first DMA cycle is ok, after I dont receive the "end of DMA" IRQ anymore

thank you

Best Regards
Giuseppe