MSPM0G3507: generating single pwm pulse

Robin Kim

Prodigy 170 points

Part Number: MSPM0G3507

Tool/software:

Hello Team,

How can I generate just one pwm pulse? Do I need to use one shot mode interrupt and trigger pwm interrupt inside?

If there's any example code, please let me know.

5 months ago

+1 Bruce McKenney 5 months ago

Guru 99225 points

I think you can use example timx_timer_mode_pwm_edge_sleep:

https://dev.ti.com/tirex/explore/node?node=A__AJKqQhYQGIeFg2xNN9p1ng__MSPM0-SDK__a3PaaoK__LATEST

and add a call to

> DL_Timer_setCounterRepeatMode(PWM_0_INST, DL_TIMER_REPEAT_MODE_DISABLED);

Then each time you call DL_TimerG_startCounter() you'll get one pulse.

0 Robin Kim 5 months ago in reply to Bruce McKenney

TI__Prodigy 170 points

Thanks Bruce,

This helped me solve the problem.

Do you usually find this line from SDK/Drivelib/api_guide?

0 Bruce McKenney 5 months ago in reply to Robin Kim

Guru 99225 points

I usually start with the TRM -- in this case I knew you wanted REPEAT=0 -- then search the driverlib source [source/ti/driverlib] to see how it references the setting.

There is a mode DL_TIMER_TIMER_MODE_ONE_SHOT, but it seems to only apply to Timer-s, not to PWM-s [even though they're actually all timers]. Thus the extra required call.

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MSPM0G3507: generating single pwm pulse