adc_sampling

ishu · ‎2023-09-01

I have generated an pwm of 1khz from timer now I want to read adc reading for once for each cycle of pwm after 50 microsecond of rising edge how to do if anyone have code please send in stm 32 .

Stassen.C · ‎2023-09-01

Hello Ishu,

First of all on which STM32 MCU do you wish to implement that?
You have a great video explaining the ADC and DMA here and a wiki here. This should help you.

Regards,
Stassen

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ishu · ‎2023-09-04

I AM USING NUCLEO-G491RE MY SYSTEM CLOCK 96MHZ I HAVE USED ADC INTERNAL TRIGEERING TO ADC .I HAVE CONFIG AN TIMER3 FOR 400US THAT WILL TRIGGER ADC INTERNALLY ON RISING EDGE AND ADC IN INTRRUPT MODE . I HAVE USED TIMER2 FOR PWM GENERATION . BY THIS SHLOUD GET ADC VALUE ON RISIING EDGE ONLY BUT I AM GETTING VALUE ON RISING AND FALLING EDGE BOTH. TIMER 2.PNG

Stassen.C · ‎2023-09-05

Hello Ishu,

You should be triggering only on rising edge for your ADC trigger if i understand well your question like below:

or else it will trigger on both rising and falling edge.

Regards,
Stassen

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