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_F401RE/pinmap.c@87:085cde657901, 2014-02-08 (annotated)

Committer:
mbed_official
Date:
Sat Feb 08 19:45:06 2014 +0000
Revision:
87:085cde657901
Child:
125:23cc3068a9e4
Synchronized with git revision 9272cdeb45ec7e6077641536509413da8fd2ebc2



Full URL: https://github.com/mbedmicro/mbed/commit/9272cdeb45ec7e6077641536509413da8fd2ebc2/



Add NUCLEO_F401RE, improvements

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /* mbed Microcontroller Library
mbed_official 87:085cde657901 2 *******************************************************************************
mbed_official 87:085cde657901 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 87:085cde657901 4 * All rights reserved.
mbed_official 87:085cde657901 5 *
mbed_official 87:085cde657901 6 * Redistribution and use in source and binary forms, with or without
mbed_official 87:085cde657901 7 * modification, are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 8 *
mbed_official 87:085cde657901 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 10 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 13 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 15 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 16 * without specific prior written permission.
mbed_official 87:085cde657901 17 *
mbed_official 87:085cde657901 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 28 *******************************************************************************
mbed_official 87:085cde657901 29 */
mbed_official 87:085cde657901 30 #include "pinmap.h"
mbed_official 87:085cde657901 31 #include "error.h"
mbed_official 87:085cde657901 32 #include "stm32f4xx_hal.h"
mbed_official 87:085cde657901 33
mbed_official 87:085cde657901 34 // GPIO mode look-up table
mbed_official 87:085cde657901 35 static const uint32_t gpio_mode[12] = {
mbed_official 87:085cde657901 36 0x00000000, // 0 = GPIO_MODE_INPUT
mbed_official 87:085cde657901 37 0x00000001, // 1 = GPIO_MODE_OUTPUT_PP
mbed_official 87:085cde657901 38 0x00000011, // 2 = GPIO_MODE_OUTPUT_OD
mbed_official 87:085cde657901 39 0x00000002, // 3 = GPIO_MODE_AF_PP
mbed_official 87:085cde657901 40 0x00000012, // 4 = GPIO_MODE_AF_OD
mbed_official 87:085cde657901 41 0x00000003, // 5 = GPIO_MODE_ANALOG
mbed_official 87:085cde657901 42 0x10110000, // 6 = GPIO_MODE_IT_RISING
mbed_official 87:085cde657901 43 0x10210000, // 7 = GPIO_MODE_IT_FALLING
mbed_official 87:085cde657901 44 0x10310000, // 8 = GPIO_MODE_IT_RISING_FALLING
mbed_official 87:085cde657901 45 0x10120000, // 9 = GPIO_MODE_EVT_RISING
mbed_official 87:085cde657901 46 0x10220000, // 10 = GPIO_MODE_EVT_FALLING
mbed_official 87:085cde657901 47 0x10320000 // 11 = GPIO_MODE_EVT_RISING_FALLING
mbed_official 87:085cde657901 48 };
mbed_official 87:085cde657901 49
mbed_official 87:085cde657901 50 // Enable GPIO clock and return GPIO base address
mbed_official 87:085cde657901 51 uint32_t Set_GPIO_Clock(uint32_t port_idx) {
mbed_official 87:085cde657901 52 uint32_t gpio_add = 0;
mbed_official 87:085cde657901 53 switch (port_idx) {
mbed_official 87:085cde657901 54 case PortA:
mbed_official 87:085cde657901 55 gpio_add = GPIOA_BASE;
mbed_official 87:085cde657901 56 __GPIOA_CLK_ENABLE();
mbed_official 87:085cde657901 57 break;
mbed_official 87:085cde657901 58 case PortB:
mbed_official 87:085cde657901 59 gpio_add = GPIOB_BASE;
mbed_official 87:085cde657901 60 __GPIOB_CLK_ENABLE();
mbed_official 87:085cde657901 61 break;
mbed_official 87:085cde657901 62 case PortC:
mbed_official 87:085cde657901 63 gpio_add = GPIOC_BASE;
mbed_official 87:085cde657901 64 __GPIOC_CLK_ENABLE();
mbed_official 87:085cde657901 65 break;
mbed_official 87:085cde657901 66 case PortD:
mbed_official 87:085cde657901 67 gpio_add = GPIOD_BASE;
mbed_official 87:085cde657901 68 __GPIOD_CLK_ENABLE();
mbed_official 87:085cde657901 69 break;
mbed_official 87:085cde657901 70 case PortH:
mbed_official 87:085cde657901 71 gpio_add = GPIOH_BASE;
mbed_official 87:085cde657901 72 __GPIOH_CLK_ENABLE();
mbed_official 87:085cde657901 73 break;
mbed_official 87:085cde657901 74 default:
mbed_official 87:085cde657901 75 error("Pinmap error: wrong port number.");
mbed_official 87:085cde657901 76 break;
mbed_official 87:085cde657901 77 }
mbed_official 87:085cde657901 78 return gpio_add;
mbed_official 87:085cde657901 79 }
mbed_official 87:085cde657901 80
mbed_official 87:085cde657901 81 /**
mbed_official 87:085cde657901 82 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 87:085cde657901 83 */
mbed_official 87:085cde657901 84 void pin_function(PinName pin, int data) {
mbed_official 87:085cde657901 85 if (pin == NC) return;
mbed_official 87:085cde657901 86
mbed_official 87:085cde657901 87 // Get the pin informations
mbed_official 87:085cde657901 88 uint32_t mode = STM_PIN_MODE(data);
mbed_official 87:085cde657901 89 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 87:085cde657901 90 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 87:085cde657901 91
mbed_official 87:085cde657901 92 uint32_t port_index = STM_PORT(pin);
mbed_official 87:085cde657901 93 uint32_t pin_index = STM_PIN(pin);
mbed_official 87:085cde657901 94
mbed_official 87:085cde657901 95 // Enable GPIO clock
mbed_official 87:085cde657901 96 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 87:085cde657901 97 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 87:085cde657901 98
mbed_official 87:085cde657901 99 // Configure GPIO
mbed_official 87:085cde657901 100 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 87:085cde657901 101 GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
mbed_official 87:085cde657901 102 GPIO_InitStructure.Mode = gpio_mode[mode];
mbed_official 87:085cde657901 103 GPIO_InitStructure.Pull = pupd;
mbed_official 87:085cde657901 104 GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
mbed_official 87:085cde657901 105 GPIO_InitStructure.Alternate = afnum;
mbed_official 87:085cde657901 106 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 87:085cde657901 107
mbed_official 87:085cde657901 108 // *** TODO ***
mbed_official 87:085cde657901 109 // Disconnect JTAG-DP + SW-DP signals.
mbed_official 87:085cde657901 110 // Warning: Need to reconnect under reset
mbed_official 87:085cde657901 111 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 87:085cde657901 112 //
mbed_official 87:085cde657901 113 //}
mbed_official 87:085cde657901 114 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 87:085cde657901 115 //
mbed_official 87:085cde657901 116 //}
mbed_official 87:085cde657901 117 }
mbed_official 87:085cde657901 118
mbed_official 87:085cde657901 119 /**
mbed_official 87:085cde657901 120 * Configure pin pull-up/pull-down
mbed_official 87:085cde657901 121 */
mbed_official 87:085cde657901 122 void pin_mode(PinName pin, PinMode mode) {
mbed_official 87:085cde657901 123 if (pin == NC) return;
mbed_official 87:085cde657901 124
mbed_official 87:085cde657901 125 uint32_t port_index = STM_PORT(pin);
mbed_official 87:085cde657901 126 uint32_t pin_index = STM_PIN(pin);
mbed_official 87:085cde657901 127
mbed_official 87:085cde657901 128 // Enable GPIO clock
mbed_official 87:085cde657901 129 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 87:085cde657901 130 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 87:085cde657901 131
mbed_official 87:085cde657901 132 // Configure pull-up/pull-down resistors
mbed_official 87:085cde657901 133 uint32_t pupd = (uint32_t)mode;
mbed_official 87:085cde657901 134 if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 87:085cde657901 135 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 87:085cde657901 136 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 87:085cde657901 137
mbed_official 87:085cde657901 138 }