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measure the frequency of the microcontroller from the outside

Question asked by garofalo.luca on Oct 13, 2012
Latest reply on Oct 15, 2012 by garofalo.luca
I need to measure from outside the sampling frequency of a STM32F4 discovery, I have thought about using a pin as an output, and bring it in an alternating manner to VDD and GROUND each time the DMA takes a sample from the ADC and places it in memory ! can anyone suggest me how to do such a thing? or if there are better ways to measure the frequency from the outside? thanks

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