PYNQ version & Board name & Tool Version pynq version 2.7 board name: ZCU111 I am trying to transfer data into the dac and receive back in the adc. However, the data does not come back. it is random data that is being store at the dma. I did an overlay with the dma along, and it works fine. it d…

You shouldn’t use a float32 type for this. `input_buffer = allocate(shape=(buffer_length,), dtype=np.float32)` The data will be transferred to the PL and the ADC as a uint. I’m also noting that you generate a signal at ~4GSPS, but sample at ~2GSPS. It looks like you generate a real sinewave, but…

[image] cathalmccabe: DMAIntErr this is the output i get when I run ol.axi_dma_0.register_map RegisterMap { MM2S_DMACR = Register(RS=0, Reset=0, Keyhole=0, Cyclic_BD_Enable=0, IOC_IrqEn=1, Dly_IrqEn=0, Err_IrqEn=0, IRQThreshold=1, IRQDelay=0), MM2S_DMASR = Register(Halted=1, Idle=0, SGI…

I do not understand the concept of the TLAST what I did was implement a AXI4-Stream DATA FIFO and enable the TLAST there This will only “pass through” TLAST. As there is no TLAST signal coming from the source, this will have no effect. You need to manually generate a TLAST signal. For example, y…

Hi, I have also trying to the same thing. I am abosolute beginner can you help me. @jbaca2019

Hi @Anees_Rehman1 , I wrote an extensive debug guide for common DMA issues. [image] Debugging Common DMA Issues [Part 3] Learn Debugging Common DMA Issues If you frequent the PYNQ forum, one of the most common questions/issues we get is why DMA transfer do not…

Zynq Ultrascal+ RF data Converter to DMA

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marioruiz April 18, 2026, 8:07am 6

Hi @Anees_Rehman1,

I wrote an extensive debug guide for common DMA issues.

Mario

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Zynq Ultrascal+ RF data Converter to DMA

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