2 * This file is part of Cleanflight.
4 * Cleanflight is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * Cleanflight is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with Cleanflight. If not, see <http://www.gnu.org/licenses/>.
22 #include "drivers/io_impl.h"
24 #ifdef USE_HARDWARE_PREBOOT_SETUP
25 void initialisePreBootHardware(void)
27 // Pulling down OSD switch pin
28 IOInit(DEFIO_IO(OSD_CH_SWITCH
), OWNER_SYSTEM
, RESOURCE_OUTPUT
, 0);
29 IOConfigGPIO(DEFIO_IO(OSD_CH_SWITCH
), IOCFG_OUT_PP
);
30 IOLo(DEFIO_IO(OSD_CH_SWITCH
));
32 // Inverting the UART1 port by default
33 IOInit(DEFIO_IO(PB13
), OWNER_SYSTEM
, RESOURCE_OUTPUT
, 0);
34 IOConfigGPIO(DEFIO_IO(PB13
), IOCFG_OUT_PP
);