Clock SPI Issues on Olinuxino microA20

[Marco Antonio Carbajal]

Hi.

I am working with an Olinuxino A20 micro, but I have issues with the SPI bus.

I hope somebody can help me to find a solution.

I used Armbian 23.5 Bookworm with kernel 6.1
In sclk signal i have a pulse before to start the data transmission, I required the SPI to communicate a  LoRa module but the pulse before of data generate that doesn´t work the LoRa module.

I attached the signals.

 

[Igor]

On 6/20/2023 at 8:02 PM, Marco Antonio Carbajal said:

I used Armbian 23.5 Bookworm with kernel 6.1

 

Did you try legacy kernel (5.15.y). With 6.1.y many things are wrong ...