hi,
I have a problem with testing my SPI python program in Tinker Board 2s
When the speed is set over 5M, the actual value will be lower than my setting
ex: 20M -> 12.5M , 12M -> 8.3M
How to slove it?
Hardware: Tinker Board 2s
OS: Tinker_Board_2-Debian-Buster-v2.0.4-20211222
Python package: Spidev