shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F302R8/pinmap.c@125:23cc3068a9e4, 2014-03-19 (annotated)

Committer:
mbed_official
Date:
Wed Mar 19 10:15:22 2014 +0000
Revision:
125:23cc3068a9e4
Child:
135:067cc8ba23da
Synchronized with git revision ace35dfba3748c7cdc102eb38ec6b9e1067c3252



Full URL: https://github.com/mbedmicro/mbed/commit/ace35dfba3748c7cdc102eb38ec6b9e1067c3252/



[NUCLEO_F302R8] Add cmsis and hal files + change F401RE clock to 84MHz

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 125:23cc3068a9e4 1 /* mbed Microcontroller Library
mbed_official 125:23cc3068a9e4 2 *******************************************************************************
mbed_official 125:23cc3068a9e4 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 125:23cc3068a9e4 4 * All rights reserved.
mbed_official 125:23cc3068a9e4 5 *
mbed_official 125:23cc3068a9e4 6 * Redistribution and use in source and binary forms, with or without
mbed_official 125:23cc3068a9e4 7 * modification, are permitted provided that the following conditions are met:
mbed_official 125:23cc3068a9e4 8 *
mbed_official 125:23cc3068a9e4 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 125:23cc3068a9e4 10 * this list of conditions and the following disclaimer.
mbed_official 125:23cc3068a9e4 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 125:23cc3068a9e4 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 125:23cc3068a9e4 13 * and/or other materials provided with the distribution.
mbed_official 125:23cc3068a9e4 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 125:23cc3068a9e4 15 * may be used to endorse or promote products derived from this software
mbed_official 125:23cc3068a9e4 16 * without specific prior written permission.
mbed_official 125:23cc3068a9e4 17 *
mbed_official 125:23cc3068a9e4 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 125:23cc3068a9e4 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 125:23cc3068a9e4 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 125:23cc3068a9e4 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 125:23cc3068a9e4 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 125:23cc3068a9e4 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 125:23cc3068a9e4 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 125:23cc3068a9e4 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 125:23cc3068a9e4 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 125:23cc3068a9e4 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 125:23cc3068a9e4 28 *******************************************************************************
mbed_official 125:23cc3068a9e4 29 */
mbed_official 125:23cc3068a9e4 30 #include "pinmap.h"
mbed_official 125:23cc3068a9e4 31 #include "error.h"
mbed_official 125:23cc3068a9e4 32
mbed_official 125:23cc3068a9e4 33 // Enable GPIO clock and return GPIO base address
mbed_official 125:23cc3068a9e4 34 uint32_t Set_GPIO_Clock(uint32_t port_idx) {
mbed_official 125:23cc3068a9e4 35 uint32_t gpio_add;
mbed_official 125:23cc3068a9e4 36 switch (port_idx) {
mbed_official 125:23cc3068a9e4 37 case PortA:
mbed_official 125:23cc3068a9e4 38 gpio_add = GPIOA_BASE;
mbed_official 125:23cc3068a9e4 39 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 125:23cc3068a9e4 40 break;
mbed_official 125:23cc3068a9e4 41 case PortB:
mbed_official 125:23cc3068a9e4 42 gpio_add = GPIOB_BASE;
mbed_official 125:23cc3068a9e4 43 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 125:23cc3068a9e4 44 break;
mbed_official 125:23cc3068a9e4 45 case PortC:
mbed_official 125:23cc3068a9e4 46 gpio_add = GPIOC_BASE;
mbed_official 125:23cc3068a9e4 47 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 125:23cc3068a9e4 48 break;
mbed_official 125:23cc3068a9e4 49 case PortD:
mbed_official 125:23cc3068a9e4 50 gpio_add = GPIOD_BASE;
mbed_official 125:23cc3068a9e4 51 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 125:23cc3068a9e4 52 break;
mbed_official 125:23cc3068a9e4 53 case PortF:
mbed_official 125:23cc3068a9e4 54 gpio_add = GPIOF_BASE;
mbed_official 125:23cc3068a9e4 55 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
mbed_official 125:23cc3068a9e4 56 break;
mbed_official 125:23cc3068a9e4 57 default:
mbed_official 125:23cc3068a9e4 58 gpio_add = 0;
mbed_official 125:23cc3068a9e4 59 error("Port number is not correct.");
mbed_official 125:23cc3068a9e4 60 break;
mbed_official 125:23cc3068a9e4 61 }
mbed_official 125:23cc3068a9e4 62 return gpio_add;
mbed_official 125:23cc3068a9e4 63 }
mbed_official 125:23cc3068a9e4 64
mbed_official 125:23cc3068a9e4 65 /**
mbed_official 125:23cc3068a9e4 66 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 125:23cc3068a9e4 67 */
mbed_official 125:23cc3068a9e4 68 void pin_function(PinName pin, int data) {
mbed_official 125:23cc3068a9e4 69 if (pin == NC) return;
mbed_official 125:23cc3068a9e4 70
mbed_official 125:23cc3068a9e4 71 // Get the pin informations
mbed_official 125:23cc3068a9e4 72 uint32_t mode = STM_PIN_MODE(data);
mbed_official 125:23cc3068a9e4 73 uint32_t otype = STM_PIN_OTYPE(data);
mbed_official 125:23cc3068a9e4 74 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 125:23cc3068a9e4 75 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 125:23cc3068a9e4 76
mbed_official 125:23cc3068a9e4 77 uint32_t port_index = STM_PORT(pin);
mbed_official 125:23cc3068a9e4 78 uint32_t pin_index = STM_PIN(pin);
mbed_official 125:23cc3068a9e4 79
mbed_official 125:23cc3068a9e4 80 // Enable GPIO clock
mbed_official 125:23cc3068a9e4 81 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 125:23cc3068a9e4 82 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 125:23cc3068a9e4 83
mbed_official 125:23cc3068a9e4 84 // Configure Alternate Function
mbed_official 125:23cc3068a9e4 85 // Warning: Must be done before the GPIO is initialized
mbed_official 125:23cc3068a9e4 86 if (afnum != 0xFF) {
mbed_official 125:23cc3068a9e4 87 GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
mbed_official 125:23cc3068a9e4 88 }
mbed_official 125:23cc3068a9e4 89
mbed_official 125:23cc3068a9e4 90 // Configure GPIO
mbed_official 125:23cc3068a9e4 91 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 125:23cc3068a9e4 92 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 125:23cc3068a9e4 93 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
mbed_official 125:23cc3068a9e4 94 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3;
mbed_official 125:23cc3068a9e4 95 GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
mbed_official 125:23cc3068a9e4 96 GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
mbed_official 125:23cc3068a9e4 97 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 125:23cc3068a9e4 98
mbed_official 125:23cc3068a9e4 99 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 125:23cc3068a9e4 100 // Warning: Need to reconnect under reset
mbed_official 125:23cc3068a9e4 101 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 125:23cc3068a9e4 102 //
mbed_official 125:23cc3068a9e4 103 //}
mbed_official 125:23cc3068a9e4 104 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 125:23cc3068a9e4 105 //
mbed_official 125:23cc3068a9e4 106 //}
mbed_official 125:23cc3068a9e4 107 }
mbed_official 125:23cc3068a9e4 108
mbed_official 125:23cc3068a9e4 109 /**
mbed_official 125:23cc3068a9e4 110 * Configure pin pull-up/pull-down
mbed_official 125:23cc3068a9e4 111 */
mbed_official 125:23cc3068a9e4 112 void pin_mode(PinName pin, PinMode mode) {
mbed_official 125:23cc3068a9e4 113 if (pin == NC) return;
mbed_official 125:23cc3068a9e4 114
mbed_official 125:23cc3068a9e4 115 uint32_t port_index = STM_PORT(pin);
mbed_official 125:23cc3068a9e4 116 uint32_t pin_index = STM_PIN(pin);
mbed_official 125:23cc3068a9e4 117
mbed_official 125:23cc3068a9e4 118 // Enable GPIO clock
mbed_official 125:23cc3068a9e4 119 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 125:23cc3068a9e4 120 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 125:23cc3068a9e4 121
mbed_official 125:23cc3068a9e4 122 // Configure pull-up/pull-down resistors
mbed_official 125:23cc3068a9e4 123 uint32_t pupd = (uint32_t)mode;
mbed_official 125:23cc3068a9e4 124 if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 125:23cc3068a9e4 125 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 125:23cc3068a9e4 126 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 125:23cc3068a9e4 127
mbed_official 125:23cc3068a9e4 128 }