关于imx6sx GPIO 速度的问题

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关于imx6sx GPIO 速度的问题

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jingyangxie
Contributor III

我有一块imx6sx主板,使用GPIO模拟串行总线输出,根据手册,设置SPEED = 11,SRE= 1,DSE= 2,发现GPIO模拟的时钟输出只有几百K,请问如何才能提高GPIO的输出频率?

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jimmychan
NXP TechSupport
NXP TechSupport

which BSP are you using? could you show me the code? and how do you test it?

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jingyangxie
Contributor III

Hi,Jimmy

       The BSP is 4.1.15,I used gpio_set_value(gpio,0) and gpio_set_value(gpio,1) to generate the clock,and then use logic analyzer to monitor the clock

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jingyangxie
Contributor III

Anyone knows?

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