test / mbed-src

mbed library sources

Dependents:   bare

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F030R8/pinmap.c@76:aeb1df146756, 2014-01-27 (annotated)

Committer:
mbed_official
Date:
Mon Jan 27 14:30:07 2014 +0000
Revision:
76:aeb1df146756
Child:
77:b5886236e6f0
Synchronized with git revision a31ec9c5f7bcb5c8a1b2eced103f6a1dfa921abd



Full URL: https://github.com/mbedmicro/mbed/commit/a31ec9c5f7bcb5c8a1b2eced103f6a1dfa921abd/



Add NUCLEO_L152RE

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 *******************************************************************************
mbed_official 76:aeb1df146756 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 4 * All rights reserved.
mbed_official 76:aeb1df146756 5 *
mbed_official 76:aeb1df146756 6 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 7 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 8 *
mbed_official 76:aeb1df146756 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 10 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 13 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 15 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 16 * without specific prior written permission.
mbed_official 76:aeb1df146756 17 *
mbed_official 76:aeb1df146756 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 28 *******************************************************************************
mbed_official 76:aeb1df146756 29 */
mbed_official 76:aeb1df146756 30 #include "pinmap.h"
mbed_official 76:aeb1df146756 31 #include "error.h"
mbed_official 76:aeb1df146756 32
mbed_official 76:aeb1df146756 33 /**
mbed_official 76:aeb1df146756 34 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 76:aeb1df146756 35 */
mbed_official 76:aeb1df146756 36 void pin_function(PinName pin, int data) {
mbed_official 76:aeb1df146756 37 GPIO_TypeDef *gpio;
mbed_official 76:aeb1df146756 38 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 76:aeb1df146756 39
mbed_official 76:aeb1df146756 40 if (pin == NC) return;
mbed_official 76:aeb1df146756 41
mbed_official 76:aeb1df146756 42 // Get the pin informations
mbed_official 76:aeb1df146756 43 uint32_t mode = STM_PIN_MODE(data);
mbed_official 76:aeb1df146756 44 uint32_t otype = STM_PIN_OTYPE(data);
mbed_official 76:aeb1df146756 45 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 76:aeb1df146756 46 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 76:aeb1df146756 47
mbed_official 76:aeb1df146756 48 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 49 uint32_t pin_index = STM_PIN(pin);
mbed_official 76:aeb1df146756 50
mbed_official 76:aeb1df146756 51 // Get GPIO structure base address and enable clock
mbed_official 76:aeb1df146756 52 switch (port_index) {
mbed_official 76:aeb1df146756 53 case PortA:
mbed_official 76:aeb1df146756 54 gpio = (GPIO_TypeDef *)GPIOA_BASE;
mbed_official 76:aeb1df146756 55 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 76:aeb1df146756 56 break;
mbed_official 76:aeb1df146756 57 case PortB:
mbed_official 76:aeb1df146756 58 gpio = (GPIO_TypeDef *)GPIOB_BASE;
mbed_official 76:aeb1df146756 59 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 76:aeb1df146756 60 break;
mbed_official 76:aeb1df146756 61 case PortC:
mbed_official 76:aeb1df146756 62 gpio = (GPIO_TypeDef *)GPIOC_BASE;
mbed_official 76:aeb1df146756 63 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 76:aeb1df146756 64 break;
mbed_official 76:aeb1df146756 65 case PortD:
mbed_official 76:aeb1df146756 66 gpio = (GPIO_TypeDef *)GPIOD_BASE;
mbed_official 76:aeb1df146756 67 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 76:aeb1df146756 68 break;
mbed_official 76:aeb1df146756 69 case PortF:
mbed_official 76:aeb1df146756 70 gpio = (GPIO_TypeDef *)GPIOF_BASE;
mbed_official 76:aeb1df146756 71 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
mbed_official 76:aeb1df146756 72 break;
mbed_official 76:aeb1df146756 73 default:
mbed_official 76:aeb1df146756 74 error("GPIO port number is not correct.");
mbed_official 76:aeb1df146756 75 break;
mbed_official 76:aeb1df146756 76 }
mbed_official 76:aeb1df146756 77
mbed_official 76:aeb1df146756 78 // Configure GPIO
mbed_official 76:aeb1df146756 79 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 76:aeb1df146756 80 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
mbed_official 76:aeb1df146756 81 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3;
mbed_official 76:aeb1df146756 82 GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
mbed_official 76:aeb1df146756 83 GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
mbed_official 76:aeb1df146756 84 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 76:aeb1df146756 85
mbed_official 76:aeb1df146756 86 // Configure Alternate Function
mbed_official 76:aeb1df146756 87 if (afnum != 0xFF) {
mbed_official 76:aeb1df146756 88 GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
mbed_official 76:aeb1df146756 89 }
mbed_official 76:aeb1df146756 90
mbed_official 76:aeb1df146756 91 // *** TODO ***
mbed_official 76:aeb1df146756 92 // Disconnect JTAG-DP + SW-DP signals.
mbed_official 76:aeb1df146756 93 // Warning: Need to reconnect under reset
mbed_official 76:aeb1df146756 94 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 76:aeb1df146756 95 //
mbed_official 76:aeb1df146756 96 //}
mbed_official 76:aeb1df146756 97 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 76:aeb1df146756 98 //
mbed_official 76:aeb1df146756 99 //}
mbed_official 76:aeb1df146756 100 }
mbed_official 76:aeb1df146756 101
mbed_official 76:aeb1df146756 102 /**
mbed_official 76:aeb1df146756 103 * Configure pin pull-up/pull-down
mbed_official 76:aeb1df146756 104 */
mbed_official 76:aeb1df146756 105 void pin_mode(PinName pin, PinMode mode) {
mbed_official 76:aeb1df146756 106 GPIO_TypeDef *gpio;
mbed_official 76:aeb1df146756 107
mbed_official 76:aeb1df146756 108 if (pin == NC) return;
mbed_official 76:aeb1df146756 109
mbed_official 76:aeb1df146756 110 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 111 uint32_t pin_index = STM_PIN(pin);
mbed_official 76:aeb1df146756 112
mbed_official 76:aeb1df146756 113 // Get GPIO structure base address and enable clock
mbed_official 76:aeb1df146756 114 switch (port_index) {
mbed_official 76:aeb1df146756 115 case PortA:
mbed_official 76:aeb1df146756 116 gpio = (GPIO_TypeDef *)GPIOA_BASE;
mbed_official 76:aeb1df146756 117 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 76:aeb1df146756 118 break;
mbed_official 76:aeb1df146756 119 case PortB:
mbed_official 76:aeb1df146756 120 gpio = (GPIO_TypeDef *)GPIOB_BASE;
mbed_official 76:aeb1df146756 121 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 76:aeb1df146756 122 break;
mbed_official 76:aeb1df146756 123 case PortC:
mbed_official 76:aeb1df146756 124 gpio = (GPIO_TypeDef *)GPIOC_BASE;
mbed_official 76:aeb1df146756 125 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 76:aeb1df146756 126 break;
mbed_official 76:aeb1df146756 127 case PortD:
mbed_official 76:aeb1df146756 128 gpio = (GPIO_TypeDef *)GPIOD_BASE;
mbed_official 76:aeb1df146756 129 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 76:aeb1df146756 130 break;
mbed_official 76:aeb1df146756 131 case PortF:
mbed_official 76:aeb1df146756 132 gpio = (GPIO_TypeDef *)GPIOF_BASE;
mbed_official 76:aeb1df146756 133 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
mbed_official 76:aeb1df146756 134 break;
mbed_official 76:aeb1df146756 135 default:
mbed_official 76:aeb1df146756 136 error("GPIO port number is not correct.");
mbed_official 76:aeb1df146756 137 break;
mbed_official 76:aeb1df146756 138 }
mbed_official 76:aeb1df146756 139
mbed_official 76:aeb1df146756 140 // Configure pull-up/pull-down resistors
mbed_official 76:aeb1df146756 141 uint32_t pupd = (uint32_t)mode;
mbed_official 76:aeb1df146756 142 if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 76:aeb1df146756 143 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 76:aeb1df146756 144 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 76:aeb1df146756 145
mbed_official 76:aeb1df146756 146 }