test / mbed-src

mbed library sources

Dependents:   bare

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F030R8/pinmap.c@77:b5886236e6f0, 2014-01-27 (annotated)

Committer:
mbed_official
Date:
Mon Jan 27 15:30:04 2014 +0000
Revision:
77:b5886236e6f0
Parent:
76:aeb1df146756
Child:
80:66393a7b209d
Synchronized with git revision 84a8f2bcd4fff802c20a78cc2edf304135d243d2



Full URL: https://github.com/mbedmicro/mbed/commit/84a8f2bcd4fff802c20a78cc2edf304135d243d2/

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 77:b5886236e6f0 33 // Not an API function
mbed_official 77:b5886236e6f0 34 // Enable GPIO clock and return GPIO base address
mbed_official 77:b5886236e6f0 35 uint32_t Set_GPIO_Clock(uint32_t port_idx) {
mbed_official 77:b5886236e6f0 36 uint32_t gpio_add = 0;
mbed_official 77:b5886236e6f0 37 switch (port_idx) {
mbed_official 77:b5886236e6f0 38 case PortA:
mbed_official 77:b5886236e6f0 39 gpio_add = GPIOA_BASE;
mbed_official 77:b5886236e6f0 40 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 77:b5886236e6f0 41 break;
mbed_official 77:b5886236e6f0 42 case PortB:
mbed_official 77:b5886236e6f0 43 gpio_add = GPIOB_BASE;
mbed_official 77:b5886236e6f0 44 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 77:b5886236e6f0 45 break;
mbed_official 77:b5886236e6f0 46 case PortC:
mbed_official 77:b5886236e6f0 47 gpio_add = GPIOC_BASE;
mbed_official 77:b5886236e6f0 48 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 77:b5886236e6f0 49 break;
mbed_official 77:b5886236e6f0 50 case PortD:
mbed_official 77:b5886236e6f0 51 gpio_add = GPIOD_BASE;
mbed_official 77:b5886236e6f0 52 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 77:b5886236e6f0 53 break;
mbed_official 77:b5886236e6f0 54 case PortF:
mbed_official 77:b5886236e6f0 55 gpio_add = GPIOF_BASE;
mbed_official 77:b5886236e6f0 56 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
mbed_official 77:b5886236e6f0 57 break;
mbed_official 77:b5886236e6f0 58 default:
mbed_official 77:b5886236e6f0 59 error("Port number is not correct.");
mbed_official 77:b5886236e6f0 60 break;
mbed_official 77:b5886236e6f0 61 }
mbed_official 77:b5886236e6f0 62 return gpio_add;
mbed_official 77:b5886236e6f0 63 }
mbed_official 77:b5886236e6f0 64
mbed_official 76:aeb1df146756 65 /**
mbed_official 76:aeb1df146756 66 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 76:aeb1df146756 67 */
mbed_official 76:aeb1df146756 68 void pin_function(PinName pin, int data) {
mbed_official 76:aeb1df146756 69 GPIO_TypeDef *gpio;
mbed_official 76:aeb1df146756 70 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 76:aeb1df146756 71
mbed_official 76:aeb1df146756 72 if (pin == NC) return;
mbed_official 76:aeb1df146756 73
mbed_official 76:aeb1df146756 74 // Get the pin informations
mbed_official 76:aeb1df146756 75 uint32_t mode = STM_PIN_MODE(data);
mbed_official 76:aeb1df146756 76 uint32_t otype = STM_PIN_OTYPE(data);
mbed_official 76:aeb1df146756 77 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 76:aeb1df146756 78 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 76:aeb1df146756 79
mbed_official 76:aeb1df146756 80 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 81 uint32_t pin_index = STM_PIN(pin);
mbed_official 77:b5886236e6f0 82
mbed_official 77:b5886236e6f0 83 // Enable GPIO clock
mbed_official 77:b5886236e6f0 84 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 77:b5886236e6f0 85 gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 77:b5886236e6f0 86
mbed_official 76:aeb1df146756 87 // Configure GPIO
mbed_official 76:aeb1df146756 88 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 76:aeb1df146756 89 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
mbed_official 76:aeb1df146756 90 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3;
mbed_official 76:aeb1df146756 91 GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
mbed_official 76:aeb1df146756 92 GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
mbed_official 76:aeb1df146756 93 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 76:aeb1df146756 94
mbed_official 76:aeb1df146756 95 // Configure Alternate Function
mbed_official 76:aeb1df146756 96 if (afnum != 0xFF) {
mbed_official 76:aeb1df146756 97 GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
mbed_official 76:aeb1df146756 98 }
mbed_official 76:aeb1df146756 99
mbed_official 76:aeb1df146756 100 // *** TODO ***
mbed_official 76:aeb1df146756 101 // Disconnect JTAG-DP + SW-DP signals.
mbed_official 76:aeb1df146756 102 // Warning: Need to reconnect under reset
mbed_official 76:aeb1df146756 103 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 76:aeb1df146756 104 //
mbed_official 76:aeb1df146756 105 //}
mbed_official 76:aeb1df146756 106 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 76:aeb1df146756 107 //
mbed_official 76:aeb1df146756 108 //}
mbed_official 76:aeb1df146756 109 }
mbed_official 76:aeb1df146756 110
mbed_official 76:aeb1df146756 111 /**
mbed_official 76:aeb1df146756 112 * Configure pin pull-up/pull-down
mbed_official 76:aeb1df146756 113 */
mbed_official 76:aeb1df146756 114 void pin_mode(PinName pin, PinMode mode) {
mbed_official 76:aeb1df146756 115 GPIO_TypeDef *gpio;
mbed_official 77:b5886236e6f0 116
mbed_official 76:aeb1df146756 117 if (pin == NC) return;
mbed_official 77:b5886236e6f0 118
mbed_official 76:aeb1df146756 119 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 120 uint32_t pin_index = STM_PIN(pin);
mbed_official 76:aeb1df146756 121
mbed_official 77:b5886236e6f0 122 // Enable GPIO clock
mbed_official 77:b5886236e6f0 123 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 77:b5886236e6f0 124 gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 76:aeb1df146756 125
mbed_official 76:aeb1df146756 126 // Configure pull-up/pull-down resistors
mbed_official 76:aeb1df146756 127 uint32_t pupd = (uint32_t)mode;
mbed_official 76:aeb1df146756 128 if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 76:aeb1df146756 129 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 76:aeb1df146756 130 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 76:aeb1df146756 131
mbed_official 76:aeb1df146756 132 }