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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_STM32F4XX/gpio_api.c@268:402bcc0c870b, 2014-07-29 (annotated)

Committer:
mbed_official
Date:
Tue Jul 29 19:00:07 2014 +0100
Revision:
268:402bcc0c870b
Parent:
227:7bd0639b8911 
Synchronized with git revision 490d1a6606b3138f165c5edf2f2370ca616587c0



Full URL: https://github.com/mbedmicro/mbed/commit/490d1a6606b3138f165c5edf2f2370ca616587c0/



[LPC1114] Sleep fix + some device.h settings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bogdanm 20:4263a77256ae 1 /* mbed Microcontroller Library
bogdanm 20:4263a77256ae 2 * Copyright (c) 2006-2013 ARM Limited
bogdanm 20:4263a77256ae 3 *
bogdanm 20:4263a77256ae 4 * Licensed under the Apache License, Version 2.0 (the "License");
bogdanm 20:4263a77256ae 5 * you may not use this file except in compliance with the License.
bogdanm 20:4263a77256ae 6 * You may obtain a copy of the License at
bogdanm 20:4263a77256ae 7 *
bogdanm 20:4263a77256ae 8 * http://www.apache.org/licenses/LICENSE-2.0
bogdanm 20:4263a77256ae 9 *
bogdanm 20:4263a77256ae 10 * Unless required by applicable law or agreed to in writing, software
bogdanm 20:4263a77256ae 11 * distributed under the License is distributed on an "AS IS" BASIS,
bogdanm 20:4263a77256ae 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
bogdanm 20:4263a77256ae 13 * See the License for the specific language governing permissions and
bogdanm 20:4263a77256ae 14 * limitations under the License.
bogdanm 20:4263a77256ae 15 */
mbed_official 227:7bd0639b8911 16 #include "mbed_assert.h"
bogdanm 20:4263a77256ae 17 #include "gpio_api.h"
bogdanm 20:4263a77256ae 18 #include "pinmap.h"
bogdanm 20:4263a77256ae 19
bogdanm 20:4263a77256ae 20 uint32_t gpio_set(PinName pin) {
mbed_official 227:7bd0639b8911 21 MBED_ASSERT(pin != (PinName)NC);
bogdanm 20:4263a77256ae 22 uint32_t port_index = (uint32_t) pin >> 4;
bogdanm 20:4263a77256ae 23
bogdanm 20:4263a77256ae 24 // Enable GPIO peripheral clock
bogdanm 20:4263a77256ae 25 RCC->AHB1ENR |= 1 << port_index;
bogdanm 20:4263a77256ae 26
bogdanm 20:4263a77256ae 27 pin_function(pin, STM_PIN_DATA(0, 0));
bogdanm 20:4263a77256ae 28 return 1 << ((uint32_t) pin & 0xF);
bogdanm 20:4263a77256ae 29 }
bogdanm 20:4263a77256ae 30
mbed_official 113:65a335a675de 31 void gpio_init(gpio_t *obj, PinName pin) {
mbed_official 227:7bd0639b8911 32 obj->pin = pin;
mbed_official 227:7bd0639b8911 33 if (pin == (PinName)NC)
mbed_official 227:7bd0639b8911 34 return;
bogdanm 20:4263a77256ae 35
bogdanm 20:4263a77256ae 36 obj->mask = gpio_set(pin);
bogdanm 20:4263a77256ae 37
bogdanm 20:4263a77256ae 38 uint32_t port_index = (uint32_t) pin >> 4;
bogdanm 20:4263a77256ae 39
bogdanm 20:4263a77256ae 40 GPIO_TypeDef *port_reg = (GPIO_TypeDef *) (GPIOA_BASE + (port_index << 10));
bogdanm 20:4263a77256ae 41 obj->reg_mode = &port_reg->MODER;
bogdanm 20:4263a77256ae 42 obj->reg_set = &port_reg->BSRRL;
bogdanm 20:4263a77256ae 43 obj->reg_clr = &port_reg->BSRRH;
bogdanm 20:4263a77256ae 44 obj->reg_in = &port_reg->IDR;
bogdanm 20:4263a77256ae 45 }
bogdanm 20:4263a77256ae 46
bogdanm 20:4263a77256ae 47 void gpio_mode(gpio_t *obj, PinMode mode) {
bogdanm 20:4263a77256ae 48 pin_mode(obj->pin, mode);
bogdanm 20:4263a77256ae 49 }
bogdanm 20:4263a77256ae 50
bogdanm 20:4263a77256ae 51 void gpio_dir(gpio_t *obj, PinDirection direction) {
mbed_official 227:7bd0639b8911 52 MBED_ASSERT(obj->pin != (PinName)NC);
bogdanm 20:4263a77256ae 53 switch (direction) {
mbed_official 227:7bd0639b8911 54 case PIN_INPUT :
mbed_official 227:7bd0639b8911 55 pin_function(obj->pin, STM_PIN_DATA(0, 0));
mbed_official 227:7bd0639b8911 56 break;
mbed_official 227:7bd0639b8911 57 case PIN_OUTPUT:
mbed_official 227:7bd0639b8911 58 pin_function(obj->pin, STM_PIN_DATA(1, 0));
mbed_official 227:7bd0639b8911 59 break;
bogdanm 20:4263a77256ae 60 }
bogdanm 20:4263a77256ae 61 }