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How to accelerate the GPIO speed

Question asked by jingyang xie on Sep 10, 2019
Latest reply on Sep 12, 2019 by igorpadykov

I have an imx6sx motherboard that uses GPIO to simulate serial bus output. According to the manual, set SPEED = 11, SRE = 1, DSE = 2, and find that the clock output of GPIO analog is only a few hundred K. How can I increase the output frequency of GPIO?