SPI problem

[li1901]

Hello, I'm a newbie using PYNQ.
Currently, I'm working on deploying an RNN neural network on PYNQ Z2 to classify my data. I've successfully run this on PYNQ, but currently, I can only manually upload data from my PC using Jupyter.
Next, I want to use the SPI protocol to directly obtain the data I need from my data source (a simulated chip with ADC that converts the acquired signal directly into digital and transmits it via SPI, and the chip only supports SPI).
I'm currently using the SPI Python code you provided. I've successfully created a Vivado project, generated a bit file, and everything runs fine in Jupyter. However, I still can't seem to send or read signals. I don't know what's wrong.

Could you please provide some photos of your hardware projects, such as physical connection diagrams, and offer detailed explanations of the code? This would greatly help me better understand this area. Thank you very much.