- Tue May 02, 2023 4:55 am
First, check the physical connections between the devices to ensure that the SPI interface is properly connected. Next, review the code for both devices to make sure that the SPI communication settings (such as clock frequency and data
mode) are correctly configured.
In the Slave device code, double-check that the SPI interrupt is enabled and that the received data is properly read from the SPI buffer. Also, ensure that the Slave device is properly configured to receive data from the Master device.