mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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

Import librarymbed

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_STM32F3XX/pinmap.c@621:9c82b0f79f3d, 2015-09-11 (annotated)

Committer:
mbed_official
Date:
Fri Sep 11 09:30:09 2015 +0100
Revision:
621:9c82b0f79f3d
Parent:
285:31249416b6f9 
Synchronized with git revision 6c1d63e069ab9bd86de92e8296ca783681257538



Full URL: https://github.com/mbedmicro/mbed/commit/6c1d63e069ab9bd86de92e8296ca783681257538/



ignore target files not supported by the yotta module

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 155:8435094ec241 1 /* mbed Microcontroller Library
mbed_official 155:8435094ec241 2 *******************************************************************************
mbed_official 155:8435094ec241 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 155:8435094ec241 4 * All rights reserved.
mbed_official 155:8435094ec241 5 *
mbed_official 155:8435094ec241 6 * Redistribution and use in source and binary forms, with or without
mbed_official 155:8435094ec241 7 * modification, are permitted provided that the following conditions are met:
mbed_official 155:8435094ec241 8 *
mbed_official 155:8435094ec241 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 155:8435094ec241 10 * this list of conditions and the following disclaimer.
mbed_official 155:8435094ec241 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 155:8435094ec241 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 155:8435094ec241 13 * and/or other materials provided with the distribution.
mbed_official 155:8435094ec241 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 155:8435094ec241 15 * may be used to endorse or promote products derived from this software
mbed_official 155:8435094ec241 16 * without specific prior written permission.
mbed_official 155:8435094ec241 17 *
mbed_official 155:8435094ec241 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 155:8435094ec241 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 155:8435094ec241 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 155:8435094ec241 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 155:8435094ec241 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 155:8435094ec241 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 155:8435094ec241 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 155:8435094ec241 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 155:8435094ec241 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 155:8435094ec241 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 155:8435094ec241 28 *******************************************************************************
mbed_official 155:8435094ec241 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 155:8435094ec241 31 #include "pinmap.h"
mbed_official 155:8435094ec241 32 #include "PortNames.h"
mbed_official 285:31249416b6f9 33 #include "mbed_error.h"
mbed_official 155:8435094ec241 34
mbed_official 155:8435094ec241 35 // Enable GPIO clock and return GPIO base address
mbed_official 155:8435094ec241 36 uint32_t Set_GPIO_Clock(uint32_t port_idx) {
mbed_official 155:8435094ec241 37 uint32_t gpio_add;
mbed_official 155:8435094ec241 38 switch (port_idx) {
mbed_official 155:8435094ec241 39 case PortA:
mbed_official 155:8435094ec241 40 gpio_add = GPIOA_BASE;
mbed_official 155:8435094ec241 41 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 155:8435094ec241 42 break;
mbed_official 155:8435094ec241 43 case PortB:
mbed_official 155:8435094ec241 44 gpio_add = GPIOB_BASE;
mbed_official 155:8435094ec241 45 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 155:8435094ec241 46 break;
mbed_official 155:8435094ec241 47 case PortC:
mbed_official 155:8435094ec241 48 gpio_add = GPIOC_BASE;
mbed_official 155:8435094ec241 49 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 155:8435094ec241 50 break;
mbed_official 155:8435094ec241 51 case PortD:
mbed_official 155:8435094ec241 52 gpio_add = GPIOD_BASE;
mbed_official 155:8435094ec241 53 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 155:8435094ec241 54 break;
mbed_official 155:8435094ec241 55 case PortE:
mbed_official 155:8435094ec241 56 gpio_add = GPIOE_BASE;
mbed_official 155:8435094ec241 57 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOE, ENABLE);
mbed_official 155:8435094ec241 58 break;
mbed_official 155:8435094ec241 59 case PortF:
mbed_official 155:8435094ec241 60 gpio_add = GPIOF_BASE;
mbed_official 155:8435094ec241 61 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
mbed_official 155:8435094ec241 62 break;
mbed_official 155:8435094ec241 63 default:
mbed_official 155:8435094ec241 64 gpio_add = 0;
mbed_official 155:8435094ec241 65 error("Port number is not correct.");
mbed_official 155:8435094ec241 66 break;
mbed_official 155:8435094ec241 67 }
mbed_official 155:8435094ec241 68 return gpio_add;
mbed_official 155:8435094ec241 69 }
mbed_official 155:8435094ec241 70
mbed_official 155:8435094ec241 71 /**
mbed_official 155:8435094ec241 72 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 155:8435094ec241 73 */
mbed_official 155:8435094ec241 74 void pin_function(PinName pin, int data) {
mbed_official 227:7bd0639b8911 75 MBED_ASSERT(pin != (PinName)NC);
mbed_official 155:8435094ec241 76
mbed_official 155:8435094ec241 77 // Get the pin informations
mbed_official 155:8435094ec241 78 uint32_t mode = STM_PIN_MODE(data);
mbed_official 155:8435094ec241 79 uint32_t otype = STM_PIN_OTYPE(data);
mbed_official 155:8435094ec241 80 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 155:8435094ec241 81 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 155:8435094ec241 82
mbed_official 155:8435094ec241 83 uint32_t port_index = STM_PORT(pin);
mbed_official 155:8435094ec241 84 uint32_t pin_index = STM_PIN(pin);
mbed_official 155:8435094ec241 85
mbed_official 155:8435094ec241 86 // Enable GPIO clock
mbed_official 155:8435094ec241 87 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 155:8435094ec241 88 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 155:8435094ec241 89
mbed_official 155:8435094ec241 90 // Configure Alternate Function
mbed_official 155:8435094ec241 91 // Warning: Must be done before the GPIO is initialized
mbed_official 155:8435094ec241 92 if (afnum != 0xFF) {
mbed_official 155:8435094ec241 93 GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
mbed_official 155:8435094ec241 94 }
mbed_official 155:8435094ec241 95
mbed_official 155:8435094ec241 96 // Configure GPIO
mbed_official 155:8435094ec241 97 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 155:8435094ec241 98 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 155:8435094ec241 99 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
mbed_official 155:8435094ec241 100 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3;
mbed_official 155:8435094ec241 101 GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
mbed_official 155:8435094ec241 102 GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
mbed_official 155:8435094ec241 103 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 155:8435094ec241 104
mbed_official 155:8435094ec241 105 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 155:8435094ec241 106 // Warning: Need to reconnect under reset
mbed_official 155:8435094ec241 107 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 155:8435094ec241 108 //
mbed_official 155:8435094ec241 109 //}
mbed_official 155:8435094ec241 110 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 155:8435094ec241 111 //
mbed_official 155:8435094ec241 112 //}
mbed_official 155:8435094ec241 113 }
mbed_official 155:8435094ec241 114
mbed_official 155:8435094ec241 115 /**
mbed_official 155:8435094ec241 116 * Configure pin pull-up/pull-down
mbed_official 155:8435094ec241 117 */
mbed_official 155:8435094ec241 118 void pin_mode(PinName pin, PinMode mode) {
mbed_official 227:7bd0639b8911 119 MBED_ASSERT(pin != (PinName)NC);
mbed_official 155:8435094ec241 120
mbed_official 155:8435094ec241 121 uint32_t port_index = STM_PORT(pin);
mbed_official 155:8435094ec241 122 uint32_t pin_index = STM_PIN(pin);
mbed_official 155:8435094ec241 123
mbed_official 155:8435094ec241 124 // Enable GPIO clock
mbed_official 155:8435094ec241 125 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 155:8435094ec241 126 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 155:8435094ec241 127
mbed_official 155:8435094ec241 128 // Configure pull-up/pull-down resistors
mbed_official 155:8435094ec241 129 uint32_t pupd = (uint32_t)mode;
mbed_official 227:7bd0639b8911 130 if (pupd > 2)
mbed_official 227:7bd0639b8911 131 pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 155:8435094ec241 132 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 155:8435094ec241 133 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 155:8435094ec241 134
mbed_official 155:8435094ec241 135 }