MCU-PLUS-SDK-AM243X: AM243x Timer counter

messori marco

Part Number: MCU-PLUS-SDK-AM243X
Other Parts Discussed in Thread: SYSCONFIG

I'm usind LP-AM243x board with the last released SDK.

Are there any examples in the SDK of Timers used as counter (up counter with Interrupt when overflow happen)?

I need 2 or 3 Timer channel all menaged by interrupt.

Also I need if possible some examples of PWM use for modulate the duty cycle of a single channel.

Thanks

+1 Frank Livingston over 3 years ago

Hi Messori,

messori marco said:
Are there any examples in the SDK of Timers used as counter (up counter with Interrupt when overflow happen)?

I don't see any examples of this. However, it should be possible to quickly create such an example by following these steps:

Import empty project into CCS, https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/08_02_00_12/exports/docs/api_guide_am243x/EXAMPLES_EMPTY.html
Open Sysconfig by double-clicking on example.syscfg
Under "TI Driver Porting Layer (DPL)", select "TIMER", review description
Add as many timer instances as required, selected desired configuration for each timer (e.g. Input Clock Source, Tick Period, Timer callback, etc.). Note interrupt mode is enabled by default.

messori marco said:
Also I need if possible some examples of PWM use for modulate the duty cycle of a single channel.

This example generates a signal for a specified time and duty cycle using the ePWM module:

The EPWM duty cycle is fixed, so you would need to add code to change it dynamically.

Regards,
Frank

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