ekiwi / pynq

PYNQ with Chisel and Rust

PYNQ with Chisel and Rust

This repository contains some examples on how Chisel and Rust can be used to create custom peripherals on the FPGA and interface them from the ARM core of the Zynq device.

The documentation helps you setup your system.

Test Log

• successfully tested accessing the rgb leds from the Overlay on 2017-11-01 using Vivado 2017.2:

> sudo ipython3
In : ov = Overlay('/home/xilinx/system.bit')
In : ov.rgbleds_gpio[0:2].write(5)

• make sure to have the Digilent board files installed in /opt/Xilinx/Vivado/2017.2/data/boards/board_files

• successfully tested accessing the loopback DMA from the Overlay on 2017-11-01 using Vivado 2017.2:

> sudo ipython3
In ....: ov = Overlay('/home/xilinx/system.bit')
In ....: xlnk = Xlnk()
    ...: in_buffer = xlnk.cma_array(shape=(5,), dtype=np.uint32)
    ...: out_buffer = xlnk.cma_array(shape=(5,), dtype=np.uint32)
    ...: 
    ...: for i in range(5):
    ...:     in_buffer[i] = i
    ...: 
    ...: dma = ov.axi_dma_0
    ...: dma.sendchannel.transfer(in_buffer)
    ...: dma.recvchannel.transfer(out_buffer)
    ...: dma.sendchannel.wait()
    ...: dma.recvchannel.wait()
    ...: 
    ...: out_buffer
Out ...:  ContiguousArray([0, 1, 2, 3, 4], dtype=uint32)