Василий Басалаев / mbed-I2CIO

Modification of mbed-src library only for STM32F030F4, very cheap microcontroller in 20-Pin TSSOP package, with 16Kbytes of Flash and 4Kbytes of Ram. **Target for online compilator must be Nucleo 32F030R8.** 01.02.2018 Acosinwork: Fork of mbed-STM32F030F4 library. Support for Troyka GPIO expander by Amperka. http://amperka.ru/product/troyka-gpio-expander

Fork of mbed-STM32F030F4 by Nothing Special

common/gpio.c@12:6f07dd7cbe47, 2018-02-01 (annotated)

Committer:
acosinwork
Date:
Thu Feb 01 10:37:10 2018 +0000
Revision:
12:6f07dd7cbe47
Parent:
0:38ccae254a29 
Change pin mapping and set internall oscillator as default. Fork to support Troyka GPIO expander (I2C I/O); http://amperka.ru/product/troyka-gpio-expander

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mega64 0:38ccae254a29 1 /* mbed Microcontroller Library
mega64 0:38ccae254a29 2 * Copyright (c) 2006-2013 ARM Limited
mega64 0:38ccae254a29 3 *
mega64 0:38ccae254a29 4 * Licensed under the Apache License, Version 2.0 (the "License");
mega64 0:38ccae254a29 5 * you may not use this file except in compliance with the License.
mega64 0:38ccae254a29 6 * You may obtain a copy of the License at
mega64 0:38ccae254a29 7 *
mega64 0:38ccae254a29 8 * http://www.apache.org/licenses/LICENSE-2.0
mega64 0:38ccae254a29 9 *
mega64 0:38ccae254a29 10 * Unless required by applicable law or agreed to in writing, software
mega64 0:38ccae254a29 11 * distributed under the License is distributed on an "AS IS" BASIS,
mega64 0:38ccae254a29 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
mega64 0:38ccae254a29 13 * See the License for the specific language governing permissions and
mega64 0:38ccae254a29 14 * limitations under the License.
mega64 0:38ccae254a29 15 */
mega64 0:38ccae254a29 16 #include "gpio_api.h"
mega64 0:38ccae254a29 17
mega64 0:38ccae254a29 18 static inline void _gpio_init_in(gpio_t* gpio, PinName pin, PinMode mode)
mega64 0:38ccae254a29 19 {
mega64 0:38ccae254a29 20 gpio_init(gpio, pin);
mega64 0:38ccae254a29 21 if (pin != NC) {
mega64 0:38ccae254a29 22 gpio_dir(gpio, PIN_INPUT);
mega64 0:38ccae254a29 23 gpio_mode(gpio, mode);
mega64 0:38ccae254a29 24 }
mega64 0:38ccae254a29 25 }
mega64 0:38ccae254a29 26
mega64 0:38ccae254a29 27 static inline void _gpio_init_out(gpio_t* gpio, PinName pin, PinMode mode, int value)
mega64 0:38ccae254a29 28 {
mega64 0:38ccae254a29 29 gpio_init(gpio, pin);
mega64 0:38ccae254a29 30 if (pin != NC) {
mega64 0:38ccae254a29 31 gpio_write(gpio, value);
mega64 0:38ccae254a29 32 gpio_dir(gpio, PIN_OUTPUT);
mega64 0:38ccae254a29 33 gpio_mode(gpio, mode);
mega64 0:38ccae254a29 34 }
mega64 0:38ccae254a29 35 }
mega64 0:38ccae254a29 36
mega64 0:38ccae254a29 37 void gpio_init_in(gpio_t* gpio, PinName pin) {
mega64 0:38ccae254a29 38 gpio_init_in_ex(gpio, pin, PullDefault);
mega64 0:38ccae254a29 39 }
mega64 0:38ccae254a29 40
mega64 0:38ccae254a29 41 void gpio_init_in_ex(gpio_t* gpio, PinName pin, PinMode mode) {
mega64 0:38ccae254a29 42 _gpio_init_in(gpio, pin, mode);
mega64 0:38ccae254a29 43 }
mega64 0:38ccae254a29 44
mega64 0:38ccae254a29 45 void gpio_init_out(gpio_t* gpio, PinName pin) {
mega64 0:38ccae254a29 46 gpio_init_out_ex(gpio, pin, 0);
mega64 0:38ccae254a29 47 }
mega64 0:38ccae254a29 48
mega64 0:38ccae254a29 49 void gpio_init_out_ex(gpio_t* gpio, PinName pin, int value) {
mega64 0:38ccae254a29 50 _gpio_init_out(gpio, pin, PullNone, value);
mega64 0:38ccae254a29 51 }
mega64 0:38ccae254a29 52
mega64 0:38ccae254a29 53 void gpio_init_inout(gpio_t* gpio, PinName pin, PinDirection direction, PinMode mode, int value) {
mega64 0:38ccae254a29 54 if (direction == PIN_INPUT) {
mega64 0:38ccae254a29 55 _gpio_init_in(gpio, pin, mode);
mega64 0:38ccae254a29 56 if (pin != NC)
mega64 0:38ccae254a29 57 gpio_write(gpio, value); // we prepare the value in case it is switched later
mega64 0:38ccae254a29 58 } else {
mega64 0:38ccae254a29 59 _gpio_init_out(gpio, pin, mode, value);
mega64 0:38ccae254a29 60 }
mega64 0:38ccae254a29 61 }