SPI cs1 doesnot operate
I am using up xtreme i12 and i have to use spi communication.
When I use my code in upboard, spidev2.0 spidev2.1 were operated well.
But, in i12, when I input ls /dev in linux, there are spidev1.0 and spidev1.1. so I used that devices,
However, the cs0 pin operates well while cs1 pin does not operates. when I used oscilloscope, the cs1 pin always show low state.
How can I use cs1 pin? is there any problem at pinctrl. deb ?
Answers
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Hi @hyunbin
Sorry for late reply.
Could you please provide more information??
What is your OS, version of kernel and bios??Best Regards,
Harry Chiu -
@HarryChiu The same thing happens to me too. The OS is ubuntu 22.04 and the kernel version is 6.5.0-18. Is there any way to solve this?
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We have discovered this problem and will fix it in a later version of the Pinctrl.
Currently, CS1 can be treated as GPIO7 for control, which will not affect the SPI function.Best Regards,
Harry Chiu
