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_F072RB/pinmap.c@219:993c9b0acbcc, 2014-06-02 (annotated)

Committer:
mbed_official
Date:
Mon Jun 02 09:45:07 2014 +0100
Revision:
219:993c9b0acbcc
Child:
239:8cadf13dff33
Synchronized with git revision cd741909614c52b886d34bad5007da2057c1a185



Full URL: https://github.com/mbedmicro/mbed/commit/cd741909614c52b886d34bad5007da2057c1a185/



[NUCLEO_F072RB] Add HAL files

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 219:993c9b0acbcc 1 /* mbed Microcontroller Library
mbed_official 219:993c9b0acbcc 2 *******************************************************************************
mbed_official 219:993c9b0acbcc 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 219:993c9b0acbcc 4 * All rights reserved.
mbed_official 219:993c9b0acbcc 5 *
mbed_official 219:993c9b0acbcc 6 * Redistribution and use in source and binary forms, with or without
mbed_official 219:993c9b0acbcc 7 * modification, are permitted provided that the following conditions are met:
mbed_official 219:993c9b0acbcc 8 *
mbed_official 219:993c9b0acbcc 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 219:993c9b0acbcc 10 * this list of conditions and the following disclaimer.
mbed_official 219:993c9b0acbcc 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 219:993c9b0acbcc 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 219:993c9b0acbcc 13 * and/or other materials provided with the distribution.
mbed_official 219:993c9b0acbcc 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 219:993c9b0acbcc 15 * may be used to endorse or promote products derived from this software
mbed_official 219:993c9b0acbcc 16 * without specific prior written permission.
mbed_official 219:993c9b0acbcc 17 *
mbed_official 219:993c9b0acbcc 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 219:993c9b0acbcc 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 219:993c9b0acbcc 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 219:993c9b0acbcc 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 219:993c9b0acbcc 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 219:993c9b0acbcc 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 219:993c9b0acbcc 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 219:993c9b0acbcc 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 219:993c9b0acbcc 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 219:993c9b0acbcc 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 219:993c9b0acbcc 28 *******************************************************************************
mbed_official 219:993c9b0acbcc 29 */
mbed_official 219:993c9b0acbcc 30 #include "pinmap.h"
mbed_official 219:993c9b0acbcc 31 #include "PortNames.h"
mbed_official 219:993c9b0acbcc 32 #include "error.h"
mbed_official 219:993c9b0acbcc 33
mbed_official 219:993c9b0acbcc 34 // GPIO mode look-up table
mbed_official 219:993c9b0acbcc 35 static const uint32_t gpio_mode[12] = {
mbed_official 219:993c9b0acbcc 36 0x00000000, // 0 = GPIO_MODE_INPUT
mbed_official 219:993c9b0acbcc 37 0x00000001, // 1 = GPIO_MODE_OUTPUT_PP
mbed_official 219:993c9b0acbcc 38 0x00000011, // 2 = GPIO_MODE_OUTPUT_OD
mbed_official 219:993c9b0acbcc 39 0x00000002, // 3 = GPIO_MODE_AF_PP
mbed_official 219:993c9b0acbcc 40 0x00000012, // 4 = GPIO_MODE_AF_OD
mbed_official 219:993c9b0acbcc 41 0x00000003, // 5 = GPIO_MODE_ANALOG
mbed_official 219:993c9b0acbcc 42 0x10110000, // 6 = GPIO_MODE_IT_RISING
mbed_official 219:993c9b0acbcc 43 0x10210000, // 7 = GPIO_MODE_IT_FALLING
mbed_official 219:993c9b0acbcc 44 0x10310000, // 8 = GPIO_MODE_IT_RISING_FALLING
mbed_official 219:993c9b0acbcc 45 0x10120000, // 9 = GPIO_MODE_EVT_RISING
mbed_official 219:993c9b0acbcc 46 0x10220000, // 10 = GPIO_MODE_EVT_FALLING
mbed_official 219:993c9b0acbcc 47 0x10320000 // 11 = GPIO_MODE_EVT_RISING_FALLING
mbed_official 219:993c9b0acbcc 48 };
mbed_official 219:993c9b0acbcc 49
mbed_official 219:993c9b0acbcc 50 // Enable GPIO clock and return GPIO base address
mbed_official 219:993c9b0acbcc 51 uint32_t Set_GPIO_Clock(uint32_t port_idx) {
mbed_official 219:993c9b0acbcc 52 uint32_t gpio_add = 0;
mbed_official 219:993c9b0acbcc 53 switch (port_idx) {
mbed_official 219:993c9b0acbcc 54 case PortA:
mbed_official 219:993c9b0acbcc 55 gpio_add = GPIOA_BASE;
mbed_official 219:993c9b0acbcc 56 __GPIOA_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 57 break;
mbed_official 219:993c9b0acbcc 58 case PortB:
mbed_official 219:993c9b0acbcc 59 gpio_add = GPIOB_BASE;
mbed_official 219:993c9b0acbcc 60 __GPIOB_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 61 break;
mbed_official 219:993c9b0acbcc 62 case PortC:
mbed_official 219:993c9b0acbcc 63 gpio_add = GPIOC_BASE;
mbed_official 219:993c9b0acbcc 64 __GPIOC_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 65 break;
mbed_official 219:993c9b0acbcc 66 case PortD:
mbed_official 219:993c9b0acbcc 67 gpio_add = GPIOD_BASE;
mbed_official 219:993c9b0acbcc 68 __GPIOD_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 69 break;
mbed_official 219:993c9b0acbcc 70 case PortF:
mbed_official 219:993c9b0acbcc 71 gpio_add = GPIOF_BASE;
mbed_official 219:993c9b0acbcc 72 __GPIOF_CLK_ENABLE();
mbed_official 219:993c9b0acbcc 73 break;
mbed_official 219:993c9b0acbcc 74 default:
mbed_official 219:993c9b0acbcc 75 error("Pinmap error: wrong port number.");
mbed_official 219:993c9b0acbcc 76 break;
mbed_official 219:993c9b0acbcc 77 }
mbed_official 219:993c9b0acbcc 78 return gpio_add;
mbed_official 219:993c9b0acbcc 79 }
mbed_official 219:993c9b0acbcc 80
mbed_official 219:993c9b0acbcc 81 /**
mbed_official 219:993c9b0acbcc 82 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 219:993c9b0acbcc 83 */
mbed_official 219:993c9b0acbcc 84 void pin_function(PinName pin, int data) {
mbed_official 219:993c9b0acbcc 85 if (pin == NC) return;
mbed_official 219:993c9b0acbcc 86
mbed_official 219:993c9b0acbcc 87 // Get the pin informations
mbed_official 219:993c9b0acbcc 88 uint32_t mode = STM_PIN_MODE(data);
mbed_official 219:993c9b0acbcc 89 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 219:993c9b0acbcc 90 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 219:993c9b0acbcc 91
mbed_official 219:993c9b0acbcc 92 uint32_t port_index = STM_PORT(pin);
mbed_official 219:993c9b0acbcc 93 uint32_t pin_index = STM_PIN(pin);
mbed_official 219:993c9b0acbcc 94
mbed_official 219:993c9b0acbcc 95 // Enable GPIO clock
mbed_official 219:993c9b0acbcc 96 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 219:993c9b0acbcc 97 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 219:993c9b0acbcc 98
mbed_official 219:993c9b0acbcc 99 // Configure GPIO
mbed_official 219:993c9b0acbcc 100 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 219:993c9b0acbcc 101 GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
mbed_official 219:993c9b0acbcc 102 GPIO_InitStructure.Mode = gpio_mode[mode];
mbed_official 219:993c9b0acbcc 103 GPIO_InitStructure.Pull = pupd;
mbed_official 219:993c9b0acbcc 104 GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
mbed_official 219:993c9b0acbcc 105 GPIO_InitStructure.Alternate = afnum;
mbed_official 219:993c9b0acbcc 106 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 219:993c9b0acbcc 107
mbed_official 219:993c9b0acbcc 108 // [TODO] Disconnect SWDIO and SWCLK signals ?
mbed_official 219:993c9b0acbcc 109 // Warning: For debugging it is necessary to reconnect under reset if this is done.
mbed_official 219:993c9b0acbcc 110 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 219:993c9b0acbcc 111 //
mbed_official 219:993c9b0acbcc 112 //}
mbed_official 219:993c9b0acbcc 113 }
mbed_official 219:993c9b0acbcc 114
mbed_official 219:993c9b0acbcc 115 /**
mbed_official 219:993c9b0acbcc 116 * Configure pin pull-up/pull-down
mbed_official 219:993c9b0acbcc 117 */
mbed_official 219:993c9b0acbcc 118 void pin_mode(PinName pin, PinMode mode) {
mbed_official 219:993c9b0acbcc 119 if (pin == NC) return;
mbed_official 219:993c9b0acbcc 120
mbed_official 219:993c9b0acbcc 121 uint32_t port_index = STM_PORT(pin);
mbed_official 219:993c9b0acbcc 122 uint32_t pin_index = STM_PIN(pin);
mbed_official 219:993c9b0acbcc 123
mbed_official 219:993c9b0acbcc 124 // Enable GPIO clock
mbed_official 219:993c9b0acbcc 125 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 219:993c9b0acbcc 126 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 219:993c9b0acbcc 127
mbed_official 219:993c9b0acbcc 128 // Configure pull-up/pull-down resistors
mbed_official 219:993c9b0acbcc 129 uint32_t pupd = (uint32_t)mode;
mbed_official 219:993c9b0acbcc 130 if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 219:993c9b0acbcc 131 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 219:993c9b0acbcc 132 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 219:993c9b0acbcc 133
mbed_official 219:993c9b0acbcc 134 }