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Why I can't set gpio high in ls1021atwr?

Question asked by 黄 皓 on Oct 30, 2017
Latest reply on Oct 31, 2017 by ufedor

When I set EC2 into CAN3,CAN4 through RCW,I shell with "echo out > /sys/class/gpio/gpio443/direction;echo 1 > /sys/class/gpio/gpio443/value",but the GPIO3_27 output low-level.

When I set EC2 into GPIO3 through RCW,I shell with "echo out > /sys/class/gpio/gpio443/direction;echo 1 > /sys/class/gpio/gpio443/value",the GPIO3_27 will output high-level.

Why Reserved can't be used as GPIO?

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