EVAL-AD7606 no-OS: Parallel Interface Support Status and "getting samples error" on ZC702

Hello,

In order to help you the best we can, we first need to know which versions of the HDL and no-OS GitHub repositories you're using. If you're not using the latest versions, this might be the cause of your issues.

1. The no-OS driver for AD7606 has been updated last year and it now supports the serial interface as well as the parallel interface. Here is the link to the project on GitHub: no-OS/drivers/adc/ad7606 at main · analogdevicesinc/no-OS

2. Unfortunately we have no support for EVAL-AD7606CFMCZ on the ZC702, but the jumper configuration should be the same as on the ZedBoard (AD7606X-FMCZ HDL project — HDL documentation). Also, here is our generic guide for porting HDL projects to different carriers: Porting ADI’s HDL reference designs — HDL documentation.

Please try these changes and look over the provided resources, and see if it solves your issues.

All the best,
Eric

Hello, some supplement:

Here are the ILA results in Vivado, I set a break point after sentence " ret = ad7606_capture_pre_enable(dev);", where I think all initialization is done and I see signals in this figure. I think the only problem that there is no valid data, so reading process is running but data is not sent through DMA to memory. I am a bit confused here, because I basically don't change much in Vivado during porting as I only deleted some hdmi and other input definition, which should not influence ADC structure

Hello,

Unfortunately we've had multiple problems with this driver, so we are starting an internal process to see if we can find and fix these issues. This may take a while, so in the meantime feel free to ask any other questions in our forums.

Thank you for your patience,

Eric

Hi,

Thanks for feedback!

I would like to share my current status, as the figure shows the ADC IPs are working correcting. I suspect the problems are located at the function " ret = ad7606_read_samples(dev, buf, AD7606X_FMC_SAMPLE_NO);" in no-OS codes. As a writing done flag should be sent and data will be written into DDR in my understanding, however what I observe is in the function "ret = axi_dmac_transfer_wait_completion(axi->dmac, 1000)" transfer cannot be completed and finally communication fails.

Thanks

Hi,

Thanks for feedback!

I would like to share my current status, as the figure shows the ADC IPs are working correcting. I suspect the problems are located at the function " ret = ad7606_read_samples(dev, buf, AD7606X_FMC_SAMPLE_NO);" in no-OS codes. As a writing done flag should be sent and data will be written into DDR in my understanding, however what I observe is in the function "ret = axi_dmac_transfer_wait_completion(axi->dmac, 1000)" transfer cannot be completed and finally communication fails.

Thanks

Hi,
Thank you for the detailed explanation. We've managed to reproduce the bug and will assign someone to solve it as soon as possible.

Thank you for your patience,
Eric