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Driver for SPORT using DMA

Question asked by hacke on Feb 6, 2015
Latest reply on Jun 26, 2015 by hacke



I need to write a device driver for  AD converter AD7890 using the SPORT interface on a BF537

I have working code for VisualDSP++ but we are currently porting the application to uClinux


The driver should continously send channel selection data and read back the result from the AD conversion

All this should be handled with DMA


So i just want to initiate the AD conversion when opening the device

and then read all channels assynchronus in the application a get the more resent

value from the AD converter


Does anyone know a driver that behaves in that way that could be a starting

point for me ??


Best regards