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STM32 digital input frequency

Question asked by grossi.marco on Sep 18, 2017
Latest reply on Sep 18, 2017 by Clive One

Hello, my problem is I need to acquire a waveform at high frequency (sampling frequency in the order 35 to 50 MHz carried out by fast external ADC). I would like to use an high performance STM32 microcontroller (such as F3 or F4) to acquire 8 bit digital inputs (ADC output) and transfer them to memory by DMA however I do not know what is the maximum frequency for the operation"DMA read input port and transfer to memory".

Anyone can help?