Closed diymat closed 6 years ago
The need to declare pin usage in the HAT EEPROM has largely been replaced by the embedded DT overlay. Unless you have a specific requirement to configure pins as early as possible you shouldn't need to use the gpios section of the EEPROM.
Thank you. I do not. The RPi starts the communication. Before that my hat is quiet.
Hi. My hat is connects to the RPi via SPI. It uses only one only four pins - but can be configured to use two SPIs and 5 CS signals. The board does not know what SPI port or which CS signal was chosen. Should I mark all 9 lines as used by the hat?