How to directly operate registers in the application layer of IMX8QXP

[zheliu]

How to directly operate registers in the application layer of IMX8QXP? I use devmem or memtool to set and read register data, but it is not correct. Is there a special tool for IMX8QXP to read and write registers?

[pengyong_zhang]

Hi @zheliu 

you can use the pinconf-pins to see the register value, But if you want to change it, There is no way to complete it in sysfs, you can modify it by dts file.

B.R

[pengyong_zhang]

Hi @zheliu 

I use devmem or memtool to set and read register data, but it is not correct

>>>Could you tell more about this incorrect, what register did you change?

B.R

[zheliu]

I want to read and write this register，

Use devmem to report bus error.