hi everyone ! need some help with STM32F401RE i m gana read 6 analog input using ADC with DMA and timer then i wana call the values from the memory to use it in the same time i wana made PWM output for my servo motor .

[Halra.1]

 I solved ADC and DMA part but i have problem whit calling the the values from memory and with PWM output that my servo motor cant work any way . plz help me:smiling_face_with_smiling_eyes: .

NOT: im new in stm32

[waclawek.jan]

> i have problem whit calling the the values from memory and with PWM output

What problem, exactly?

JW

[Halra.1]

the PWM output for servo motor doesnt work while the ADC working and i couldn't write the code for calling the values from memory.

im using two timer and 6 analog input (ADC) .

[YAY.1]

Have you try to connect multimeter to pwm signal ?

Is there voltage fall down or grow up ?

[Halra.1]

its between 0.05 - 0.18 V

[YAY.1]

I think there is problem in servo .

And if you have arduino , can you try servo with arduino ?

Could you change servo, if there is one more ?

[Halra.1]

its working just when i unplug the 6 analog input Cables . (if the ADC working , the servo motor cant run )

[YAY.1]

Can you give the code ?

[YAY.1 · Accepted solution]

hadc1.Init.Resolution = ADC_RESOLUTION_8B;

Can you change with 6B ?

AND

sConfig.SamplingTime = ADC_SAMPLETIME_15CYCLES;

Can you delete this code ?