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/*
* || ____ _ __
* +------+ / __ )(_) /_______________ _____ ___
* | 0xBC | / __ / / __/ ___/ ___/ __ `/_ / / _ \
* +------+ / /_/ / / /_/ /__/ / / /_/ / / /_/ __/
* || || /_____/_/\__/\___/_/ \__,_/ /___/\___/
*
* Crazyflie control firmware
*
* Copyright (C) 2015 Bitcraze AB
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, in version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* digital.c - Deck-API digital IO implementation
*/
#include "deck.h"
#include "stm32fxxx.h"
void pinMode(const deckPin_t pin, const uint32_t mode)
{
RCC_AHB1PeriphClockCmd(deckGPIOMapping[pin.id].periph, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure = {0};
GPIO_InitStructure.GPIO_Pin = deckGPIOMapping[pin.id].pin;
GPIO_InitStructure.GPIO_Mode = (mode == OUTPUT) ? GPIO_Mode_OUT:GPIO_Mode_IN;
if (mode == OUTPUT) GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
if (mode == INPUT_PULLUP) GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
if (mode == INPUT_PULLDOWN) GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_25MHz;
GPIO_Init(deckGPIOMapping[pin.id].port, &GPIO_InitStructure);
}
void digitalWrite(const deckPin_t pin, const uint32_t val)
{
BitAction action = Bit_RESET;
if (val) {
action = Bit_SET;
}
GPIO_WriteBit(deckGPIOMapping[pin.id].port, deckGPIOMapping[pin.id].pin, action);
}
int digitalRead(const deckPin_t pin)
{
int val = GPIO_ReadInputDataBit(deckGPIOMapping[pin.id].port, deckGPIOMapping[pin.id].pin);
return (val==Bit_SET)?HIGH:LOW;
}