So I am not an EE and I was hoping to get a more experienced opinion from someone who has dealt with embedded systems before. There is a diagram in the datasheet for how this audio codec should be connected. The diagram shows 5 lines connecting the device to the bus: BCLK, ADCLRC, DACLRC, ADCDAT and DACDAT. Would all 5 of these lines have to be hooked up in order for the device to function properly? For some reason (yet to be determined) one of the lines was driven to ground (ADCLRT). I am not sure what it does; I assume that it means: analog to digital converter latch. Whether or not driving this line to ground would prevent the device from operating correctly is beyond my expertise but I am having trouble getting the device working so I am perusing all avenues I can think of.

 

We'll need to know the part number of the CODEC.

 

What device are you referring to?

 

wm8750 codec

 

Beware, CODEC's are painfully difficult to get working, due to the millions or config registers that must be perfect, or... nothing...

A very large and dark forest for a beginner.

 

@Sensacell Tell me about it. I am at an impasse myself; and I am attempting the change on a 10 year old kernel with the old ASoC system. The hardware has changed from the wm8753 to the wm8750. I have managed to configure the kernel to look for the correct codec and I believe I have altered the machine driver for the old codec sufficiently but it still isn't recognizing the new hardware. This is hwy I am checking up on this bus line connection configuration because I can't think of where else to go.