SDK Development / mbed-src

mbed SDK library sources

Fork of mbed-src by mbed official

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pinmap.c@80:66393a7b209d, 2014-01-30 (annotated)

Committer:
mbed_official
Date:
Thu Jan 30 12:15:05 2014 +0000
Revision:
80:66393a7b209d
Parent:
76:aeb1df146756
Child:
84:f54042cbc282
Synchronized with git revision dba523f83fe09b7fce11fc1299dd1216e9776359



Full URL: https://github.com/mbedmicro/mbed/commit/dba523f83fe09b7fce11fc1299dd1216e9776359/



Update of I2C, SPI, SLEEP for NUCLEO_F103RB and L152RE

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 76:aeb1df146756 33 // Not an API function
mbed_official 76:aeb1df146756 34 // Enable GPIO clock and return GPIO base address
mbed_official 76:aeb1df146756 35 uint32_t Set_GPIO_Clock(uint32_t port_idx) {
mbed_official 76:aeb1df146756 36 uint32_t gpio_add = 0;
mbed_official 76:aeb1df146756 37 switch (port_idx) {
mbed_official 76:aeb1df146756 38 case PortA:
mbed_official 76:aeb1df146756 39 gpio_add = GPIOA_BASE;
mbed_official 76:aeb1df146756 40 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
mbed_official 76:aeb1df146756 41 break;
mbed_official 76:aeb1df146756 42 case PortB:
mbed_official 76:aeb1df146756 43 gpio_add = GPIOB_BASE;
mbed_official 76:aeb1df146756 44 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE);
mbed_official 76:aeb1df146756 45 break;
mbed_official 76:aeb1df146756 46 case PortC:
mbed_official 76:aeb1df146756 47 gpio_add = GPIOC_BASE;
mbed_official 76:aeb1df146756 48 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
mbed_official 76:aeb1df146756 49 break;
mbed_official 76:aeb1df146756 50 case PortD:
mbed_official 76:aeb1df146756 51 gpio_add = GPIOD_BASE;
mbed_official 76:aeb1df146756 52 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE);
mbed_official 76:aeb1df146756 53 break;
mbed_official 76:aeb1df146756 54 case PortH:
mbed_official 76:aeb1df146756 55 gpio_add = GPIOH_BASE;
mbed_official 76:aeb1df146756 56 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOH, ENABLE);
mbed_official 76:aeb1df146756 57 break;
mbed_official 76:aeb1df146756 58 default:
mbed_official 76:aeb1df146756 59 error("Port number is not correct.");
mbed_official 76:aeb1df146756 60 break;
mbed_official 76:aeb1df146756 61 }
mbed_official 76:aeb1df146756 62 return gpio_add;
mbed_official 76:aeb1df146756 63 }
mbed_official 76:aeb1df146756 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 76:aeb1df146756 82
mbed_official 76:aeb1df146756 83 // Enable GPIO clock
mbed_official 76:aeb1df146756 84 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 76:aeb1df146756 85 gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 80:66393a7b209d 86
mbed_official 80:66393a7b209d 87 // Configure Alternate Function
mbed_official 80:66393a7b209d 88 // Warning: Must be done before the GPIO is initialized
mbed_official 80:66393a7b209d 89 if (afnum != 0xFF) {
mbed_official 80:66393a7b209d 90 GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum);
mbed_official 80:66393a7b209d 91 }
mbed_official 80:66393a7b209d 92
mbed_official 76:aeb1df146756 93 // Configure GPIO
mbed_official 76:aeb1df146756 94 GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index);
mbed_official 76:aeb1df146756 95 GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode;
mbed_official 76:aeb1df146756 96 GPIO_InitStructure.GPIO_Speed = GPIO_Speed_40MHz;
mbed_official 76:aeb1df146756 97 GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype;
mbed_official 76:aeb1df146756 98 GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd;
mbed_official 76:aeb1df146756 99 GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 76:aeb1df146756 100
mbed_official 76:aeb1df146756 101 // *** TODO ***
mbed_official 76:aeb1df146756 102 // Disconnect JTAG-DP + SW-DP signals.
mbed_official 76:aeb1df146756 103 // Warning: Need to reconnect under reset
mbed_official 76:aeb1df146756 104 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 76:aeb1df146756 105 //
mbed_official 76:aeb1df146756 106 //}
mbed_official 76:aeb1df146756 107 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
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 /**
mbed_official 76:aeb1df146756 113 * Configure pin pull-up/pull-down
mbed_official 76:aeb1df146756 114 */
mbed_official 76:aeb1df146756 115 void pin_mode(PinName pin, PinMode mode) {
mbed_official 76:aeb1df146756 116 GPIO_TypeDef *gpio;
mbed_official 76:aeb1df146756 117
mbed_official 76:aeb1df146756 118 if (pin == NC) return;
mbed_official 76:aeb1df146756 119
mbed_official 76:aeb1df146756 120 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 121 uint32_t pin_index = STM_PIN(pin);
mbed_official 76:aeb1df146756 122
mbed_official 76:aeb1df146756 123 // Enable GPIO clock
mbed_official 76:aeb1df146756 124 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 76:aeb1df146756 125 gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 76:aeb1df146756 126
mbed_official 76:aeb1df146756 127 // Configure pull-up/pull-down resistors
mbed_official 76:aeb1df146756 128 uint32_t pupd = (uint32_t)mode;
mbed_official 76:aeb1df146756 129 if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 76:aeb1df146756 130 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 76:aeb1df146756 131 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 76:aeb1df146756 132
mbed_official 76:aeb1df146756 133 }