AM5728: Quesstion about AM5728 Generic Timer

Hello Hanc,

We will have this reported issue investigated internally and will respond by next week.

Meanwhile, do you have any Linux kernel logs that can be shared? When you say it crashed, is the power to the AM5728 ON? Are you able to connect to the A15 core using XDS200? Let us know.

Thanks.

The top figure shows the information in the exported kernel log_buff after accessing the emulator, and the bottom figure shows the value of the CNTPCT register

Hello Xin,

Thank you for the logs. Based on the information provided, you are using SDK 6.3?
Is this a custom board? 
Have you tried recreating the issue on a TI board?

-Josue

Hello Josue,

      Our SDK is 

       It's our custom board,it's need 384 days to recreat this issue,so we have not time to recreat this issue on a TI board!

       by the way,we want to modify the cntpct register,I consulted the armv7 manual, which mentioned that the CNTControlBase register can be modified to modify the value of the system count counter, but we searched the armv7 manual and the am5728 datasheet, but we could not find the location and configuration of this register

Thank you 

Hanc

Hello Xin Luo,

I believe this is the correct patch based on the patch comments. Porting this to your existing software should resolve this issue. 

Good find!

-Josue

Hello，Josue

The armv7 manual mentions that the system count register can be manipulated by means of memmaps. What is the CNTControlBase register address for am5728?

Thank you 

Hanc