高阻态
/*----------------------------------------------------------------------------*/
/**@brief 把所有IO设置为高阻
@param x:显示横坐标
@return void
@author Change.tsai
@note void led7_clear(void)
*/
/*----------------------------------------------------------------------------*/
static void __ui_led7_port_set_hz(u8 port)
{
gpio_set_pull_down(port, 0);
gpio_set_pull_up(port, 0);
gpio_set_direction(port, 1);
}