AM62P: TIMER

Hi Li,

Thanks for reaching out on the TI E2E Support Forum.

When we talk about Timer Compare and Capture mode based on SoC AM62x, we currently do not have TI Software Level of offering in the SDK(although its supported on SoC level).

Li Geng said:

When the timer count reaches the compare value, it is found that after executing the service function once, the interrupt will be executed immediately. Normal interrupts should only be executed once, which will affect our normal interrupt usage

I will try my best to help you on your general concerns here, so do you want to generate more than one interrupt or just one interrupt when the TIMER_TCRR is equal to TIMER_TMAR ? Also could you share your working code, which includes register writes and reads and the implementation of capture mode.

This way I can see if I will be able to accelerate on helping you close your query.

Looking forward to your response.

Regards,

Vaibhav

Hi TI team

      What I want is for the counter to only respond to the interrupt once when it reaches the compare value. At this point, we will increase the compare value by another part, and then the counter value will continue to increase. When the counter value is equal to the compare value, the interrupt will be triggered again, instead of clearing 0 after reaching the compare value and increasing from 0.

Thanks

SHI

Hi Li,

I understood your requirement.

Allow me several business days to get back to you with a response.

Regards,

Vaibhav

Hi TI team

Okay, I can't proceed with my work here. I hope to receive your reply as soon as possible.

Thanks

SHI

Hi Li,

I would like to know if this is in context of MCU PLUS SDK or Processor SDK Linux?

Regards,

Vaibhav

Hi TI team

MCU PLUS SDK

Thanks

SHI

Hi Li,

Thanks for your response.

Could you also provide the code you have written for Timer Compare implementation?

Please expect responses in few business days.

Regards,

Vaibhav

Hi TI team

    As shown in the figure, this is my operation to initialize TIMER.

Thanks

SHI

Hi Li,

Thanks for sharing the implementation.

Please expect responses in few business days.

Regards,

Vaibhav

Hi TI team

    I hope to receive your reply as soon as possible. Due to this issue, I am unable to proceed.

Thanks

SHI

Hi Li,

You can expect a response from my end by today itself.

Regards,

Vaibhav

Hi Li,

I was unable to get back to you as I was in training all day this and next week as well. I am going to browse through TRM and see if this is an expected behaviour of what you are seeing with interrupts.

Regards,

Vaibhav

Hi Li,

I was going through the TRM and figured out that we need to set the TIMER_TCLR bit before putting value int the TIMER_TMAR register. Is this something you have taken care of? Please find the attached relevant section from TRM.

Regards,

Vaibhav