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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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

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_NUCLEO_F103RB/pinmap.c@440:8a0b45cd594f, 2014-12-16 (annotated)

Committer:
mbed_official
Date:
Tue Dec 16 08:15:08 2014 +0000
Revision:
440:8a0b45cd594f
Parent:
402:09075a3b15e3
Child:
489:119543c9f674
Synchronized with git revision 67fbbf0b635d0c0d93fbe433306c537c2ad206aa



Full URL: https://github.com/mbedmicro/mbed/commit/67fbbf0b635d0c0d93fbe433306c537c2ad206aa/



Targets: nrf51 - updating app_timer.c from Norid'c SDKv7.1.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 52:a51c77007319 1 /* mbed Microcontroller Library
mbed_official 70:c1fbde68b492 2 *******************************************************************************
mbed_official 70:c1fbde68b492 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 70:c1fbde68b492 4 * All rights reserved.
mbed_official 52:a51c77007319 5 *
mbed_official 70:c1fbde68b492 6 * Redistribution and use in source and binary forms, with or without
mbed_official 70:c1fbde68b492 7 * modification, are permitted provided that the following conditions are met:
mbed_official 52:a51c77007319 8 *
mbed_official 70:c1fbde68b492 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 70:c1fbde68b492 10 * this list of conditions and the following disclaimer.
mbed_official 70:c1fbde68b492 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 70:c1fbde68b492 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 70:c1fbde68b492 13 * and/or other materials provided with the distribution.
mbed_official 70:c1fbde68b492 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 70:c1fbde68b492 15 * may be used to endorse or promote products derived from this software
mbed_official 70:c1fbde68b492 16 * without specific prior written permission.
mbed_official 52:a51c77007319 17 *
mbed_official 70:c1fbde68b492 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 70:c1fbde68b492 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 70:c1fbde68b492 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 70:c1fbde68b492 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 70:c1fbde68b492 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 70:c1fbde68b492 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 70:c1fbde68b492 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 70:c1fbde68b492 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 70:c1fbde68b492 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 70:c1fbde68b492 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 70:c1fbde68b492 28 *******************************************************************************
mbed_official 52:a51c77007319 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 52:a51c77007319 31 #include "pinmap.h"
mbed_official 145:cfacfb0a9e19 32 #include "PortNames.h"
mbed_official 285:31249416b6f9 33 #include "mbed_error.h"
mbed_official 52:a51c77007319 34
mbed_official 52:a51c77007319 35 // Alternate-function mapping
mbed_official 167:d5744491c362 36 #define AF_NUM (10)
mbed_official 167:d5744491c362 37 static const uint32_t AF_mapping[AF_NUM] = {
mbed_official 174:8bb9f3a33240 38 0, // 0 = No AF
mbed_official 174:8bb9f3a33240 39 GPIO_Remap_SPI1, // 1
mbed_official 174:8bb9f3a33240 40 GPIO_Remap_I2C1, // 2
mbed_official 174:8bb9f3a33240 41 GPIO_Remap_USART1, // 3
mbed_official 174:8bb9f3a33240 42 GPIO_Remap_USART2, // 4
mbed_official 174:8bb9f3a33240 43 GPIO_PartialRemap_USART3, // 5
mbed_official 174:8bb9f3a33240 44 GPIO_PartialRemap_TIM1, // 6
mbed_official 174:8bb9f3a33240 45 GPIO_PartialRemap_TIM3, // 7
mbed_official 174:8bb9f3a33240 46 GPIO_FullRemap_TIM2, // 8
mbed_official 174:8bb9f3a33240 47 GPIO_FullRemap_TIM3 // 9
mbed_official 52:a51c77007319 48 };
mbed_official 52:a51c77007319 49
mbed_official 76:aeb1df146756 50 // Enable GPIO clock and return GPIO base address
mbed_official 402:09075a3b15e3 51 uint32_t Set_GPIO_Clock(uint32_t port_idx)
mbed_official 402:09075a3b15e3 52 {
mbed_official 76:aeb1df146756 53 uint32_t gpio_add = 0;
mbed_official 76:aeb1df146756 54 switch (port_idx) {
mbed_official 76:aeb1df146756 55 case PortA:
mbed_official 76:aeb1df146756 56 gpio_add = GPIOA_BASE;
mbed_official 76:aeb1df146756 57 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
mbed_official 76:aeb1df146756 58 break;
mbed_official 76:aeb1df146756 59 case PortB:
mbed_official 76:aeb1df146756 60 gpio_add = GPIOB_BASE;
mbed_official 76:aeb1df146756 61 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
mbed_official 76:aeb1df146756 62 break;
mbed_official 76:aeb1df146756 63 case PortC:
mbed_official 76:aeb1df146756 64 gpio_add = GPIOC_BASE;
mbed_official 76:aeb1df146756 65 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
mbed_official 76:aeb1df146756 66 break;
mbed_official 76:aeb1df146756 67 case PortD:
mbed_official 76:aeb1df146756 68 gpio_add = GPIOD_BASE;
mbed_official 76:aeb1df146756 69 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
mbed_official 76:aeb1df146756 70 break;
mbed_official 76:aeb1df146756 71 default:
mbed_official 76:aeb1df146756 72 error("Port number is not correct.");
mbed_official 76:aeb1df146756 73 break;
mbed_official 76:aeb1df146756 74 }
mbed_official 76:aeb1df146756 75 return gpio_add;
mbed_official 76:aeb1df146756 76 }
mbed_official 76:aeb1df146756 77
mbed_official 52:a51c77007319 78 /**
mbed_official 76:aeb1df146756 79 * Configure pin (input, output, alternate function or analog) + output speed + AF
mbed_official 52:a51c77007319 80 */
mbed_official 402:09075a3b15e3 81 void pin_function(PinName pin, int data)
mbed_official 402:09075a3b15e3 82 {
mbed_official 227:7bd0639b8911 83 MBED_ASSERT(pin != (PinName)NC);
mbed_official 76:aeb1df146756 84 // Get the pin informations
mbed_official 52:a51c77007319 85 uint32_t mode = STM_PIN_MODE(data);
mbed_official 52:a51c77007319 86 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 52:a51c77007319 87
mbed_official 76:aeb1df146756 88 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 89 uint32_t pin_index = STM_PIN(pin);
mbed_official 52:a51c77007319 90
mbed_official 76:aeb1df146756 91 // Enable GPIO clock
mbed_official 76:aeb1df146756 92 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 84:f54042cbc282 93 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 80:66393a7b209d 94
mbed_official 76:aeb1df146756 95 // Enable AFIO clock
mbed_official 52:a51c77007319 96 RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
mbed_official 80:66393a7b209d 97
mbed_official 80:66393a7b209d 98 // Configure Alternate Function
mbed_official 80:66393a7b209d 99 // Warning: Must be done before the GPIO is initialized
mbed_official 167:d5744491c362 100 if ((afnum > 0) && (afnum < AF_NUM)) {
mbed_official 80:66393a7b209d 101 GPIO_PinRemapConfig(AF_mapping[afnum], ENABLE);
mbed_official 80:66393a7b209d 102 }
mbed_official 174:8bb9f3a33240 103
mbed_official 52:a51c77007319 104 // Configure GPIO
mbed_official 84:f54042cbc282 105 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 52:a51c77007319 106 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 52:a51c77007319 107 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
mbed_official 52:a51c77007319 108 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
mbed_official 52:a51c77007319 109 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 174:8bb9f3a33240 110
mbed_official 52:a51c77007319 111 // Disconnect JTAG-DP + SW-DP signals.
mbed_official 52:a51c77007319 112 // Warning: Need to reconnect under reset
mbed_official 52:a51c77007319 113 if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 52:a51c77007319 114 GPIO_PinRemapConfig(GPIO_Remap_SWJ_Disable, ENABLE);
mbed_official 52:a51c77007319 115 }
mbed_official 52:a51c77007319 116 if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 52:a51c77007319 117 GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);
mbed_official 174:8bb9f3a33240 118 }
mbed_official 52:a51c77007319 119 }
mbed_official 52:a51c77007319 120
mbed_official 52:a51c77007319 121 /**
mbed_official 76:aeb1df146756 122 * Configure pin pull-up/pull-down
mbed_official 52:a51c77007319 123 */
mbed_official 402:09075a3b15e3 124 void pin_mode(PinName pin, PinMode mode)
mbed_official 402:09075a3b15e3 125 {
mbed_official 227:7bd0639b8911 126 MBED_ASSERT(pin != (PinName)NC);
mbed_official 76:aeb1df146756 127 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 174:8bb9f3a33240 128
mbed_official 76:aeb1df146756 129 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 130 uint32_t pin_index = STM_PIN(pin);
mbed_official 52:a51c77007319 131
mbed_official 52:a51c77007319 132 // Enable GPIO clock
mbed_official 76:aeb1df146756 133 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 84:f54042cbc282 134 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 174:8bb9f3a33240 135
mbed_official 52:a51c77007319 136 // Configure open-drain and pull-up/down
mbed_official 52:a51c77007319 137 switch (mode) {
mbed_official 174:8bb9f3a33240 138 case PullNone:
mbed_official 174:8bb9f3a33240 139 return;
mbed_official 174:8bb9f3a33240 140 case PullUp:
mbed_official 174:8bb9f3a33240 141 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
mbed_official 174:8bb9f3a33240 142 break;
mbed_official 174:8bb9f3a33240 143 case PullDown:
mbed_official 174:8bb9f3a33240 144 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
mbed_official 174:8bb9f3a33240 145 break;
mbed_official 174:8bb9f3a33240 146 case OpenDrain:
mbed_official 174:8bb9f3a33240 147 if (pin_index < 8) {
mbed_official 174:8bb9f3a33240 148 if ((gpio->CRL & (0x03 << (pin_index * 4))) > 0) { // MODE bits = Output mode
mbed_official 174:8bb9f3a33240 149 gpio->CRL |= (0x04 << (pin_index * 4)); // Set open-drain
mbed_official 174:8bb9f3a33240 150 }
mbed_official 174:8bb9f3a33240 151 } else {
mbed_official 174:8bb9f3a33240 152 if ((gpio->CRH & (0x03 << ((pin_index % 8) * 4))) > 0) { // MODE bits = Output mode
mbed_official 174:8bb9f3a33240 153 gpio->CRH |= (0x04 << ((pin_index % 8) * 4)); // Set open-drain
mbed_official 174:8bb9f3a33240 154 }
mbed_official 52:a51c77007319 155 }
mbed_official 174:8bb9f3a33240 156 return;
mbed_official 174:8bb9f3a33240 157 default:
mbed_official 174:8bb9f3a33240 158 break;
mbed_official 52:a51c77007319 159 }
mbed_official 174:8bb9f3a33240 160
mbed_official 52:a51c77007319 161 // Configure GPIO
mbed_official 52:a51c77007319 162 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 52:a51c77007319 163 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
mbed_official 174:8bb9f3a33240 164 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 52:a51c77007319 165 }