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Timer and ADC on STM32F429

DetlefS
Associate III

Hi,

I want to kick ADC1 IN5 with the Timer TIM2. 

I'm working with CubeIDE.

I select:

ADC1 -> ADC_Regular_Conversion_Mode -> External Trigger Conversion Source  -> Timer 2 Trigger Out event

TIM2 ->  Trigger Output (TRGO) Parameters -> Update Event

But ADC1 does not run, Data Register is constant.

If I kick ADC1 by software everything is fine, I get some noisy numbers.

TIM2 is running, the count register is counting.

Why does TIM2 not kick ADC1 by the TRGO event?

This setup used to work fine on STM32F303. 

What do I miss on the STM32F429?

THX Cheers

Detlef 

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