relase()
{
…
gpioUnexport(gpio424);
gpioUnexport(gpio393);
gpioUnexport(gpio344);
gpioUnexport(gpio417);
…
}
How can I ensure gpio424 and gpio417 worked at the same time?
AFAIK, there’s no APIs to control multiple GPIOs at once.
may I know what’s your purpose or use-case to ensure gpio424 and gpio417 worked at the same time.
thanks
We have two cameras, one is 30fps,another is 60fps, a gps connect with 60fps_camera. And we want they capture at the same time, so we will know capture time of the 30fps-camera.
please gather the timestamp of capture frames, you may have comparison of the capture timestamps between these two sensors, and please have synchronize from the user-space application side.
suggest you should also refer to similar discussion thread, such as Topic 1007933.
thanks