It would help to know the device connected to the SPI bus.
The SPI devices I used so far set CS low == active during the complete transmission, not only as a short trigger at the start.
And spidev also handles CS 'automagically'. No need to set/reset this in code, usually.
See also https://pinout.xyz/pinout/spi
The SPI devices I used so far set CS low == active during the complete transmission, not only as a short trigger at the start.
And spidev also handles CS 'automagically'. No need to set/reset this in code, usually.
See also https://pinout.xyz/pinout/spi
Statistics: Posted by ghp — Wed Aug 13, 2025 1:17 pm