LP-AM243: Can I configure am243x Launchpad timer as RTI up counter\free running counter

Kathiravan Palani

Part Number: LP-AM243

Hi,

I’m using AM243x Launch pad, I need to configure Timer. As per image it is showing that only way to implement timer is DM Timer implementation.

Whether this timer can be configured as RTI up counter/ free running counter ? (Because I can able to see that in am243x TRM document that RTI8 is dedicatedly used for R5FSS0_CORE0).

And also what is the use case of TimerP_rti.c file (path : mcu_plus_sdk_am243x_08_05_00_24\source\kernel\nortos\dpl\common\ TimerP_rti.c) ? (same Timer APIs are used in this file but implementation is changed).

Kindly give clarification/ suggestion on the above query.

Thanks in advance

over 2 years ago

0 Randy Rosales over 2 years ago

TI__Mastermind 18230 points

Hi,

I'll look this up for you and get back.

Thank you,

-Randy

0 Randy Rosales over 2 years ago in reply to Randy Rosales

TI__Mastermind 18230 points

Hi,

I think the DPL Timer module might be what you are looking for. Please check out the DPL/Timer module in the AM243x SDK and let me know:

https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/08_06_00_45/exports/docs/api_guide_am243x/KERNEL_DPL_TIMER_PAGE.html

The Driver Porting Layer (DPL) provides an OS agnostic API for many of the common MCU features you might need (like timers). See here for a DPL introduction:

https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/08_06_00_45/exports/docs/api_guide_am243x/KERNEL_DPL_PAGE.html#autotoc_md1562

There is also a DPL driver example demo which uses many of these DPL features, including timer:

https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/08_06_00_45/exports/docs/api_guide_am243x/EXAMPLES_KERNEL_DPL_DEMO.html

Let me know if that helps.

-Randy

Arm-based microcontrollers

Arm-based microcontrollers forum

LP-AM243: Can I configure am243x Launchpad timer as RTI up counter\free running counter