# RFSoC 4x2 pmod\_adc and pmod dac example not working

**URL:** <https://discuss.pynq.io/t/rfsoc-4x2-pmod-adc-and-pmod-dac-example-not-working/8683>\
**Category:** Support\
**Created:** [August 11, 2025, 10:30pm UTC](https://discuss.pynq.io/t/rfsoc-4x2-pmod-adc-and-pmod-dac-example-not-working/8683 "2025-08-11T22:30:12Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mark\_xiao](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/mark_xiao/32/7209_2.png) [@mark\_xiao](https://discuss.pynq.io/u/mark_xiao)\
**Post date:** [August 11, 2025, 10:30pm UTC](https://discuss.pynq.io/t/rfsoc-4x2-pmod-adc-and-pmod-dac-example-not-working/8683/1 "2025-08-11T22:30:13Z")

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I am trying to run the example code for PMOD ADC and DAC on RFSoC 4x2, which can be found here [RFSoC-PYNQ/boards/RFSoC4x2/base/notebooks/pmod at master · Xilinx/RFSoC-PYNQ · GitHub](https://github.com/Xilinx/RFSoC-PYNQ/tree/master/boards/RFSoC4x2/base/notebooks/pmod).

But neither DAC nor ADC is working, which I have verified through waveform generators and oscilloscope. Does the base overlay support pmod adc or dac?

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**Author:** ![cathalmccabe](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/cathalmccabe/32/3348_2.png) [@cathalmccabe](https://discuss.pynq.io/u/cathalmccabe)\
**Post date:** [August 21, 2025, 7:45am UTC](https://discuss.pynq.io/t/rfsoc-4x2-pmod-adc-and-pmod-dac-example-not-working/8683/2 "2025-08-21T07:45:48Z")

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Yes, these notebooks should work. Which PYNQ image/which version of PYNQ are you using?

Cathal

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**Author:** ![mark\_xiao](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/mark_xiao/32/7209_2.png) [@mark\_xiao](https://discuss.pynq.io/u/mark_xiao)\
**Post date:** [August 21, 2025, 6:40pm UTC](https://discuss.pynq.io/t/rfsoc-4x2-pmod-adc-and-pmod-dac-example-not-working/8683/3 "2025-08-21T18:40:55Z")

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Thanks for the reply. The problem has solved. Thank you!

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**Author:** ![marioruiz](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/marioruiz/32/2177_2.png) [@marioruiz](https://discuss.pynq.io/u/marioruiz)\
**Post date:** [August 25, 2025, 1:43pm UTC](https://discuss.pynq.io/t/rfsoc-4x2-pmod-adc-and-pmod-dac-example-not-working/8683/4 "2025-08-25T13:43:02Z")

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Hi @mark_xiao,

Can you please post the solution in case it can help someone else in the community?

Mario