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_DISCO_F303VC/pinmap.c@250:a49055e7a707, 2014-07-08 (annotated)

Committer:
mbed_official
Date:
Tue Jul 08 11:15:08 2014 +0100
Revision:
250:a49055e7a707
Parent:
241:ffe41b0c8126
Child:
251:de9a1e4ffd79
Synchronized with git revision 3197042b65f8d28e856e1a7812d45e2fbe80e3f1



Full URL: https://github.com/mbedmicro/mbed/commit/3197042b65f8d28e856e1a7812d45e2fbe80e3f1/



error.h -> mbed_error.h

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 157:90e3acc479a2 1 /* mbed Microcontroller Library
mbed_official 157:90e3acc479a2 2 *******************************************************************************
mbed_official 157:90e3acc479a2 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 157:90e3acc479a2 4 * All rights reserved.
mbed_official 157:90e3acc479a2 5 *
mbed_official 157:90e3acc479a2 6 * Redistribution and use in source and binary forms, with or without
mbed_official 157:90e3acc479a2 7 * modification, are permitted provided that the following conditions are met:
mbed_official 157:90e3acc479a2 8 *
mbed_official 157:90e3acc479a2 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 157:90e3acc479a2 10 * this list of conditions and the following disclaimer.
mbed_official 157:90e3acc479a2 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 157:90e3acc479a2 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 157:90e3acc479a2 13 * and/or other materials provided with the distribution.
mbed_official 157:90e3acc479a2 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 157:90e3acc479a2 15 * may be used to endorse or promote products derived from this software
mbed_official 157:90e3acc479a2 16 * without specific prior written permission.
mbed_official 157:90e3acc479a2 17 *
mbed_official 157:90e3acc479a2 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 157:90e3acc479a2 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 157:90e3acc479a2 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 157:90e3acc479a2 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 157:90e3acc479a2 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 157:90e3acc479a2 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 157:90e3acc479a2 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 157:90e3acc479a2 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 157:90e3acc479a2 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 157:90e3acc479a2 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 157:90e3acc479a2 28 *******************************************************************************
mbed_official 157:90e3acc479a2 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 157:90e3acc479a2 31 #include "pinmap.h"
mbed_official 241:ffe41b0c8126 32 #include "PortNames.h"
mbed_official 250:a49055e7a707 33 #include "mbed_error.h"
mbed_official 157:90e3acc479a2 34
mbed_official 157:90e3acc479a2 35 // Enable GPIO clock and return GPIO base address
mbed_official 157:90e3acc479a2 36 uint32_t Set_GPIO_Clock(uint32_t port_idx) {
mbed_official 157:90e3acc479a2 37 uint32_t gpio_add;
mbed_official 157:90e3acc479a2 38 switch (port_idx) {
mbed_official 157:90e3acc479a2 39 case PortA:
mbed_official 157:90e3acc479a2 40 gpio_add = GPIOA_BASE;
mbed_official 157:90e3acc479a2 41 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 157:90e3acc479a2 42 break;
mbed_official 157:90e3acc479a2 43 case PortB:
mbed_official 157:90e3acc479a2 44 gpio_add = GPIOB_BASE;
mbed_official 157:90e3acc479a2 45 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 157:90e3acc479a2 46 break;
mbed_official 157:90e3acc479a2 47 case PortC:
mbed_official 157:90e3acc479a2 48 gpio_add = GPIOC_BASE;
mbed_official 157:90e3acc479a2 49 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 157:90e3acc479a2 50 break;
mbed_official 157:90e3acc479a2 51 case PortD:
mbed_official 157:90e3acc479a2 52 gpio_add = GPIOD_BASE;
mbed_official 157:90e3acc479a2 53 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 157:90e3acc479a2 54 break;
mbed_official 157:90e3acc479a2 55 case PortE:
mbed_official 157:90e3acc479a2 56 gpio_add = GPIOE_BASE;
mbed_official 157:90e3acc479a2 57 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOE, ENABLE);
mbed_official 157:90e3acc479a2 58 break;
mbed_official 157:90e3acc479a2 59 case PortF:
mbed_official 157:90e3acc479a2 60 gpio_add = GPIOF_BASE;
mbed_official 157:90e3acc479a2 61 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
mbed_official 157:90e3acc479a2 62 break;
mbed_official 157:90e3acc479a2 63 default:
mbed_official 157:90e3acc479a2 64 gpio_add = 0;
mbed_official 157:90e3acc479a2 65 error("Port number is not correct.");
mbed_official 157:90e3acc479a2 66 break;
mbed_official 157:90e3acc479a2 67 }
mbed_official 157:90e3acc479a2 68 return gpio_add;
mbed_official 157:90e3acc479a2 69 }
mbed_official 157:90e3acc479a2 70
mbed_official 157:90e3acc479a2 71 /**
mbed_official 157:90e3acc479a2 72 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 157:90e3acc479a2 73 */
mbed_official 157:90e3acc479a2 74 void pin_function(PinName pin, int data) {
mbed_official 227:7bd0639b8911 75 MBED_ASSERT(pin != (PinName)NC);
mbed_official 157:90e3acc479a2 76
mbed_official 157:90e3acc479a2 77 // Get the pin informations
mbed_official 157:90e3acc479a2 78 uint32_t mode = STM_PIN_MODE(data);
mbed_official 157:90e3acc479a2 79 uint32_t otype = STM_PIN_OTYPE(data);
mbed_official 157:90e3acc479a2 80 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 157:90e3acc479a2 81 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 157:90e3acc479a2 82
mbed_official 157:90e3acc479a2 83 uint32_t port_index = STM_PORT(pin);
mbed_official 157:90e3acc479a2 84 uint32_t pin_index = STM_PIN(pin);
mbed_official 157:90e3acc479a2 85
mbed_official 157:90e3acc479a2 86 // Enable GPIO clock
mbed_official 157:90e3acc479a2 87 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 157:90e3acc479a2 88 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 157:90e3acc479a2 89
mbed_official 157:90e3acc479a2 90 // Configure Alternate Function
mbed_official 157:90e3acc479a2 91 // Warning: Must be done before the GPIO is initialized
mbed_official 157:90e3acc479a2 92 if (afnum != 0xFF) {
mbed_official 157:90e3acc479a2 93 GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
mbed_official 157:90e3acc479a2 94 }
mbed_official 157:90e3acc479a2 95
mbed_official 157:90e3acc479a2 96 // Configure GPIO
mbed_official 157:90e3acc479a2 97 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 157:90e3acc479a2 98 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 157:90e3acc479a2 99 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
mbed_official 157:90e3acc479a2 100 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3;
mbed_official 157:90e3acc479a2 101 GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
mbed_official 157:90e3acc479a2 102 GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
mbed_official 157:90e3acc479a2 103 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 157:90e3acc479a2 104
mbed_official 157:90e3acc479a2 105 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 157:90e3acc479a2 106 // Warning: Need to reconnect under reset
mbed_official 157:90e3acc479a2 107 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 157:90e3acc479a2 108 //
mbed_official 157:90e3acc479a2 109 //}
mbed_official 157:90e3acc479a2 110 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 157:90e3acc479a2 111 //
mbed_official 227:7bd0639b8911 112 //}
mbed_official 157:90e3acc479a2 113 }
mbed_official 157:90e3acc479a2 114
mbed_official 157:90e3acc479a2 115 /**
mbed_official 157:90e3acc479a2 116 * Configure pin pull-up/pull-down
mbed_official 157:90e3acc479a2 117 */
mbed_official 157:90e3acc479a2 118 void pin_mode(PinName pin, PinMode mode) {
mbed_official 227:7bd0639b8911 119 MBED_ASSERT(pin != (PinName)NC);
mbed_official 157:90e3acc479a2 120
mbed_official 157:90e3acc479a2 121 uint32_t port_index = STM_PORT(pin);
mbed_official 157:90e3acc479a2 122 uint32_t pin_index = STM_PIN(pin);
mbed_official 157:90e3acc479a2 123
mbed_official 157:90e3acc479a2 124 // Enable GPIO clock
mbed_official 157:90e3acc479a2 125 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 157:90e3acc479a2 126 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 157:90e3acc479a2 127
mbed_official 157:90e3acc479a2 128 // Configure pull-up/pull-down resistors
mbed_official 157:90e3acc479a2 129 uint32_t pupd = (uint32_t)mode;
mbed_official 227:7bd0639b8911 130 if (pupd > 2)
mbed_official 227:7bd0639b8911 131 pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 157:90e3acc479a2 132 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 157:90e3acc479a2 133 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 157:90e3acc479a2 134
mbed_official 157:90e3acc479a2 135 }