Hi Chen-Yu, Nice catch :)
On Wed, Jan 15, 2014 at 04:21:12PM +0800, Chen-Yu Tsai wrote: > Hi, > > On Wed, Jan 15, 2014 at 8:37 AM, Ma Haijun <mahaij...@gmail.com> wrote: > > Hi, > > > > I think it is better to set the output value first to avoid glitch. > > If I understand the user manual correctly, setting the output value > before changing the pin to output function first will have no effect. I just tested it on my A31, and it is working as expected (the output value isn't output until the direction is changed). It would be great if you could test this as well on your device, and change it like suggested. Thanks! Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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