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Dma interrupts

Question asked by Gary Dommer on Sep 27, 2017
Latest reply on Oct 16, 2017 by Wolfgang Mües

I have a pcie card mini adapter plugged into a Boundary Devices Nitrogen6 carrier board. the pcie device is a Linear Systems Ttd. SDI Tx card. I got the driver to run however, after some dma buffer transfers the dma done indication as well as the completion interrupt stops. The driver then fills the dma ring and shuts down exiting the test application. At this point the dma will not  restarte unless I reboot the system.

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