adc_sampling

[ishu]

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]

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

[ishu]

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.

[Stassen.C]

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