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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

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_STM32F4/pinmap.c@635:a11c0372f0ba, 2015-09-30 (annotated)

Committer:
mbed_official
Date:
Wed Sep 30 17:00:09 2015 +0100
Revision:
635:a11c0372f0ba
Parent:
559:a5bce224b5d8 
Synchronized with git revision d29c98dae61be0946ddf3a3c641c7726056f9452



Full URL: https://github.com/mbedmicro/mbed/commit/d29c98dae61be0946ddf3a3c641c7726056f9452/



Added support for SAMW25

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 442:d916d321e60f 1 /* mbed Microcontroller Library
mbed_official 442:d916d321e60f 2 *******************************************************************************
mbed_official 442:d916d321e60f 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 442:d916d321e60f 4 * All rights reserved.
mbed_official 442:d916d321e60f 5 *
mbed_official 442:d916d321e60f 6 * Redistribution and use in source and binary forms, with or without
mbed_official 442:d916d321e60f 7 * modification, are permitted provided that the following conditions are met:
mbed_official 442:d916d321e60f 8 *
mbed_official 442:d916d321e60f 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 442:d916d321e60f 10 * this list of conditions and the following disclaimer.
mbed_official 442:d916d321e60f 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 442:d916d321e60f 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 442:d916d321e60f 13 * and/or other materials provided with the distribution.
mbed_official 442:d916d321e60f 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 442:d916d321e60f 15 * may be used to endorse or promote products derived from this software
mbed_official 442:d916d321e60f 16 * without specific prior written permission.
mbed_official 442:d916d321e60f 17 *
mbed_official 442:d916d321e60f 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 442:d916d321e60f 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 442:d916d321e60f 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 442:d916d321e60f 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 442:d916d321e60f 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 442:d916d321e60f 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 442:d916d321e60f 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 442:d916d321e60f 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 442:d916d321e60f 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 442:d916d321e60f 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 442:d916d321e60f 28 *******************************************************************************
mbed_official 442:d916d321e60f 29 */
mbed_official 442:d916d321e60f 30 #include "mbed_assert.h"
mbed_official 442:d916d321e60f 31 #include "pinmap.h"
mbed_official 442:d916d321e60f 32 #include "PortNames.h"
mbed_official 442:d916d321e60f 33 #include "mbed_error.h"
mbed_official 442:d916d321e60f 34
mbed_official 442:d916d321e60f 35 // GPIO mode look-up table
mbed_official 442:d916d321e60f 36 static const uint32_t gpio_mode[13] = {
mbed_official 442:d916d321e60f 37 0x00000000, // 0 = GPIO_MODE_INPUT
mbed_official 442:d916d321e60f 38 0x00000001, // 1 = GPIO_MODE_OUTPUT_PP
mbed_official 442:d916d321e60f 39 0x00000011, // 2 = GPIO_MODE_OUTPUT_OD
mbed_official 442:d916d321e60f 40 0x00000002, // 3 = GPIO_MODE_AF_PP
mbed_official 442:d916d321e60f 41 0x00000012, // 4 = GPIO_MODE_AF_OD
mbed_official 442:d916d321e60f 42 0x00000003, // 5 = GPIO_MODE_ANALOG
mbed_official 442:d916d321e60f 43 0x10110000, // 6 = GPIO_MODE_IT_RISING
mbed_official 442:d916d321e60f 44 0x10210000, // 7 = GPIO_MODE_IT_FALLING
mbed_official 442:d916d321e60f 45 0x10310000, // 8 = GPIO_MODE_IT_RISING_FALLING
mbed_official 442:d916d321e60f 46 0x10120000, // 9 = GPIO_MODE_EVT_RISING
mbed_official 442:d916d321e60f 47 0x10220000, // 10 = GPIO_MODE_EVT_FALLING
mbed_official 442:d916d321e60f 48 0x10320000, // 11 = GPIO_MODE_EVT_RISING_FALLING
mbed_official 442:d916d321e60f 49 0x10000000 // 12 = Reset GPIO_MODE_IT_EVT
mbed_official 442:d916d321e60f 50 };
mbed_official 442:d916d321e60f 51
mbed_official 442:d916d321e60f 52 // Enable GPIO clock and return GPIO base address
mbed_official 442:d916d321e60f 53 uint32_t Set_GPIO_Clock(uint32_t port_idx)
mbed_official 442:d916d321e60f 54 {
mbed_official 442:d916d321e60f 55 uint32_t gpio_add = 0;
mbed_official 442:d916d321e60f 56 switch (port_idx) {
mbed_official 442:d916d321e60f 57 case PortA:
mbed_official 442:d916d321e60f 58 gpio_add = GPIOA_BASE;
mbed_official 442:d916d321e60f 59 __GPIOA_CLK_ENABLE();
mbed_official 442:d916d321e60f 60 break;
mbed_official 442:d916d321e60f 61 case PortB:
mbed_official 442:d916d321e60f 62 gpio_add = GPIOB_BASE;
mbed_official 442:d916d321e60f 63 __GPIOB_CLK_ENABLE();
mbed_official 442:d916d321e60f 64 break;
mbed_official 442:d916d321e60f 65 case PortC:
mbed_official 442:d916d321e60f 66 gpio_add = GPIOC_BASE;
mbed_official 442:d916d321e60f 67 __GPIOC_CLK_ENABLE();
mbed_official 442:d916d321e60f 68 break;
mbed_official 559:a5bce224b5d8 69 #if defined GPIOD_BASE
mbed_official 442:d916d321e60f 70 case PortD:
mbed_official 442:d916d321e60f 71 gpio_add = GPIOD_BASE;
mbed_official 442:d916d321e60f 72 __GPIOD_CLK_ENABLE();
mbed_official 442:d916d321e60f 73 break;
mbed_official 559:a5bce224b5d8 74 #endif
mbed_official 559:a5bce224b5d8 75 #if defined GPIOE_BASE
mbed_official 442:d916d321e60f 76 case PortE:
mbed_official 442:d916d321e60f 77 gpio_add = GPIOE_BASE;
mbed_official 442:d916d321e60f 78 __GPIOE_CLK_ENABLE();
mbed_official 442:d916d321e60f 79 break;
mbed_official 559:a5bce224b5d8 80 #endif
mbed_official 442:d916d321e60f 81 #if defined GPIOF_BASE
mbed_official 442:d916d321e60f 82 case PortF:
mbed_official 442:d916d321e60f 83 gpio_add = GPIOF_BASE;
mbed_official 442:d916d321e60f 84 __GPIOF_CLK_ENABLE();
mbed_official 442:d916d321e60f 85 break;
mbed_official 442:d916d321e60f 86 #endif
mbed_official 442:d916d321e60f 87 #if defined GPIOG_BASE
mbed_official 442:d916d321e60f 88 case PortG:
mbed_official 442:d916d321e60f 89 gpio_add = GPIOG_BASE;
mbed_official 442:d916d321e60f 90 __GPIOG_CLK_ENABLE();
mbed_official 442:d916d321e60f 91 break;
mbed_official 442:d916d321e60f 92 #endif
mbed_official 442:d916d321e60f 93 #if defined GPIOH_BASE
mbed_official 442:d916d321e60f 94 case PortH:
mbed_official 442:d916d321e60f 95 gpio_add = GPIOH_BASE;
mbed_official 442:d916d321e60f 96 __GPIOH_CLK_ENABLE();
mbed_official 442:d916d321e60f 97 break;
mbed_official 442:d916d321e60f 98 #endif
mbed_official 442:d916d321e60f 99 #if defined GPIOI_BASE
mbed_official 442:d916d321e60f 100 case PortI:
mbed_official 442:d916d321e60f 101 gpio_add = GPIOI_BASE;
mbed_official 442:d916d321e60f 102 __GPIOI_CLK_ENABLE();
mbed_official 442:d916d321e60f 103 break;
mbed_official 442:d916d321e60f 104 #endif
mbed_official 442:d916d321e60f 105 #if defined GPIOJ_BASE
mbed_official 442:d916d321e60f 106 case PortJ:
mbed_official 442:d916d321e60f 107 gpio_add = GPIOJ_BASE;
mbed_official 442:d916d321e60f 108 __GPIOJ_CLK_ENABLE();
mbed_official 442:d916d321e60f 109 break;
mbed_official 442:d916d321e60f 110 #endif
mbed_official 442:d916d321e60f 111 #if defined GPIOK_BASE
mbed_official 442:d916d321e60f 112 case PortK:
mbed_official 442:d916d321e60f 113 gpio_add = GPIOK_BASE;
mbed_official 442:d916d321e60f 114 __GPIOK_CLK_ENABLE();
mbed_official 442:d916d321e60f 115 break;
mbed_official 442:d916d321e60f 116 #endif
mbed_official 442:d916d321e60f 117 default:
mbed_official 442:d916d321e60f 118 error("Pinmap error: wrong port number.");
mbed_official 442:d916d321e60f 119 break;
mbed_official 442:d916d321e60f 120 }
mbed_official 442:d916d321e60f 121 return gpio_add;
mbed_official 442:d916d321e60f 122 }
mbed_official 442:d916d321e60f 123
mbed_official 442:d916d321e60f 124 /**
mbed_official 442:d916d321e60f 125 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 442:d916d321e60f 126 */
mbed_official 442:d916d321e60f 127 void pin_function(PinName pin, int data)
mbed_official 442:d916d321e60f 128 {
mbed_official 442:d916d321e60f 129 MBED_ASSERT(pin != (PinName)NC);
mbed_official 442:d916d321e60f 130 // Get the pin informations
mbed_official 442:d916d321e60f 131 uint32_t mode = STM_PIN_MODE(data);
mbed_official 442:d916d321e60f 132 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 442:d916d321e60f 133 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 442:d916d321e60f 134
mbed_official 442:d916d321e60f 135 uint32_t port_index = STM_PORT(pin);
mbed_official 442:d916d321e60f 136 uint32_t pin_index = STM_PIN(pin);
mbed_official 442:d916d321e60f 137
mbed_official 442:d916d321e60f 138 // Enable GPIO clock
mbed_official 442:d916d321e60f 139 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 442:d916d321e60f 140 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 442:d916d321e60f 141
mbed_official 442:d916d321e60f 142 // Configure GPIO
mbed_official 442:d916d321e60f 143 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 442:d916d321e60f 144 GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
mbed_official 442:d916d321e60f 145 GPIO_InitStructure.Mode = gpio_mode[mode];
mbed_official 442:d916d321e60f 146 GPIO_InitStructure.Pull = pupd;
mbed_official 442:d916d321e60f 147 GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
mbed_official 442:d916d321e60f 148 GPIO_InitStructure.Alternate = afnum;
mbed_official 442:d916d321e60f 149 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 442:d916d321e60f 150
mbed_official 442:d916d321e60f 151 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 442:d916d321e60f 152 // Warning: Need to reconnect under reset
mbed_official 442:d916d321e60f 153 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 442:d916d321e60f 154 //
mbed_official 442:d916d321e60f 155 //}
mbed_official 442:d916d321e60f 156 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 442:d916d321e60f 157 //
mbed_official 442:d916d321e60f 158 //}
mbed_official 442:d916d321e60f 159 }
mbed_official 442:d916d321e60f 160
mbed_official 442:d916d321e60f 161 /**
mbed_official 442:d916d321e60f 162 * Configure pin pull-up/pull-down
mbed_official 442:d916d321e60f 163 */
mbed_official 442:d916d321e60f 164 void pin_mode(PinName pin, PinMode mode)
mbed_official 442:d916d321e60f 165 {
mbed_official 442:d916d321e60f 166 MBED_ASSERT(pin != (PinName)NC);
mbed_official 442:d916d321e60f 167 uint32_t port_index = STM_PORT(pin);
mbed_official 442:d916d321e60f 168 uint32_t pin_index = STM_PIN(pin);
mbed_official 442:d916d321e60f 169
mbed_official 442:d916d321e60f 170 // Enable GPIO clock
mbed_official 442:d916d321e60f 171 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 442:d916d321e60f 172 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 442:d916d321e60f 173
mbed_official 442:d916d321e60f 174 // Configure pull-up/pull-down resistors
mbed_official 442:d916d321e60f 175 uint32_t pupd = (uint32_t)mode;
mbed_official 442:d916d321e60f 176 if (pupd > 2)
mbed_official 442:d916d321e60f 177 pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 442:d916d321e60f 178 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 442:d916d321e60f 179 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 442:d916d321e60f 180
mbed_official 442:d916d321e60f 181 }