For a quick verification test of my hardware, I want to send data over spidev0.0. For this test I don’t really want to write code because that isn’t a quick verification. The method that I am currently use is thru the terminal/shell of Linux itself. I am able to send data out of spidev0.0 with the following:
echo -ne “\x01\x02\x03” > /dev/spidev0.0
This works because I am able to see the data with my oscilloscope. However the clock is around 24 MHz and I want to lower the frequency. Therefore my question is: Is it also possible to adjust the SPI clock speed thru the terminal/shell command?
I googled a bunch but couldn’t find a solution that worked for me. Any help is welcome ofcourse.