STM32L476 ADC trigger on SAI MCLK

[brians]

Posted on April 12, 2016 at 21:40

Is it possible to connect the SAI MCLK signal such that it can be used as a clock into a timer which is counted down to provide an ADC trigger - or are there aliasing issues with the timer? I want an internal ADC to trigger at the same rate as the SAI output. Tried using MCLK as an external clock input to the timer (TIM2) divided down to produce TRGO to ADC, thus far without success.

#adc-sai-external-clock-timer