lzbp li / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_STM32L1/pinmap.c@496:543871686697, 2015-03-24 (annotated)

Committer:
mbed_official
Date:
Tue Mar 24 09:00:08 2015 +0000
Revision:
496:543871686697
Parent:
targets/hal/TARGET_STM/TARGET_NUCLEO_L152RE/pinmap.c@414:4ec4c5b614b0 
Synchronized with git revision ea01d61fa18430564b78226045b196bb6bf6b66a



Full URL: https://github.com/mbedmicro/mbed/commit/ea01d61fa18430564b78226045b196bb6bf6b66a/



NUCLEO_L152RE - reorg hal

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 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 76:aeb1df146756 31 #include "pinmap.h"
mbed_official 145:cfacfb0a9e19 32 #include "PortNames.h"
mbed_official 285:31249416b6f9 33 #include "mbed_error.h"
mbed_official 76:aeb1df146756 34
mbed_official 354:e67efb2aab0e 35 // GPIO mode look-up table
mbed_official 354:e67efb2aab0e 36 static const uint32_t gpio_mode[13] = {
mbed_official 354:e67efb2aab0e 37 0x00000000, // 0 = GPIO_MODE_INPUT
mbed_official 354:e67efb2aab0e 38 0x00000001, // 1 = GPIO_MODE_OUTPUT_PP
mbed_official 354:e67efb2aab0e 39 0x00000011, // 2 = GPIO_MODE_OUTPUT_OD
mbed_official 354:e67efb2aab0e 40 0x00000002, // 3 = GPIO_MODE_AF_PP
mbed_official 354:e67efb2aab0e 41 0x00000012, // 4 = GPIO_MODE_AF_OD
mbed_official 354:e67efb2aab0e 42 0x00000003, // 5 = GPIO_MODE_ANALOG
mbed_official 354:e67efb2aab0e 43 0x10110000, // 6 = GPIO_MODE_IT_RISING
mbed_official 354:e67efb2aab0e 44 0x10210000, // 7 = GPIO_MODE_IT_FALLING
mbed_official 354:e67efb2aab0e 45 0x10310000, // 8 = GPIO_MODE_IT_RISING_FALLING
mbed_official 354:e67efb2aab0e 46 0x10120000, // 9 = GPIO_MODE_EVT_RISING
mbed_official 354:e67efb2aab0e 47 0x10220000, // 10 = GPIO_MODE_EVT_FALLING
mbed_official 354:e67efb2aab0e 48 0x10320000, // 11 = GPIO_MODE_EVT_RISING_FALLING
mbed_official 354:e67efb2aab0e 49 0x10000000 // 12 = Reset IT and EVT (not in STM32Cube HAL)
mbed_official 354:e67efb2aab0e 50 };
mbed_official 354:e67efb2aab0e 51
mbed_official 76:aeb1df146756 52 // Enable GPIO clock and return GPIO base address
mbed_official 354:e67efb2aab0e 53 uint32_t Set_GPIO_Clock(uint32_t port_idx)
mbed_official 354:e67efb2aab0e 54 {
mbed_official 76:aeb1df146756 55 uint32_t gpio_add = 0;
mbed_official 76:aeb1df146756 56 switch (port_idx) {
mbed_official 76:aeb1df146756 57 case PortA:
mbed_official 76:aeb1df146756 58 gpio_add = GPIOA_BASE;
mbed_official 354:e67efb2aab0e 59 __GPIOA_CLK_ENABLE();
mbed_official 76:aeb1df146756 60 break;
mbed_official 76:aeb1df146756 61 case PortB:
mbed_official 76:aeb1df146756 62 gpio_add = GPIOB_BASE;
mbed_official 354:e67efb2aab0e 63 __GPIOB_CLK_ENABLE();
mbed_official 76:aeb1df146756 64 break;
mbed_official 76:aeb1df146756 65 case PortC:
mbed_official 76:aeb1df146756 66 gpio_add = GPIOC_BASE;
mbed_official 354:e67efb2aab0e 67 __GPIOC_CLK_ENABLE();
mbed_official 76:aeb1df146756 68 break;
mbed_official 76:aeb1df146756 69 case PortD:
mbed_official 76:aeb1df146756 70 gpio_add = GPIOD_BASE;
mbed_official 354:e67efb2aab0e 71 __GPIOD_CLK_ENABLE();
mbed_official 76:aeb1df146756 72 break;
mbed_official 76:aeb1df146756 73 case PortH:
mbed_official 76:aeb1df146756 74 gpio_add = GPIOH_BASE;
mbed_official 354:e67efb2aab0e 75 __GPIOH_CLK_ENABLE();
mbed_official 76:aeb1df146756 76 break;
mbed_official 76:aeb1df146756 77 default:
mbed_official 354:e67efb2aab0e 78 error("Pinmap error: wrong port number.");
mbed_official 76:aeb1df146756 79 break;
mbed_official 76:aeb1df146756 80 }
mbed_official 76:aeb1df146756 81 return gpio_add;
mbed_official 76:aeb1df146756 82 }
mbed_official 76:aeb1df146756 83
mbed_official 76:aeb1df146756 84 /**
mbed_official 76:aeb1df146756 85 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 76:aeb1df146756 86 */
mbed_official 354:e67efb2aab0e 87 void pin_function(PinName pin, int data)
mbed_official 354:e67efb2aab0e 88 {
mbed_official 227:7bd0639b8911 89 MBED_ASSERT(pin != (PinName)NC);
mbed_official 76:aeb1df146756 90 // Get the pin informations
mbed_official 76:aeb1df146756 91 uint32_t mode = STM_PIN_MODE(data);
mbed_official 76:aeb1df146756 92 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 76:aeb1df146756 93 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 76:aeb1df146756 94
mbed_official 76:aeb1df146756 95 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 96 uint32_t pin_index = STM_PIN(pin);
mbed_official 76:aeb1df146756 97
mbed_official 76:aeb1df146756 98 // Enable GPIO clock
mbed_official 76:aeb1df146756 99 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 84:f54042cbc282 100 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 80:66393a7b209d 101
mbed_official 76:aeb1df146756 102 // Configure GPIO
mbed_official 84:f54042cbc282 103 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 354:e67efb2aab0e 104 GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
mbed_official 354:e67efb2aab0e 105 GPIO_InitStructure.Mode = gpio_mode[mode];
mbed_official 354:e67efb2aab0e 106 GPIO_InitStructure.Pull = pupd;
mbed_official 354:e67efb2aab0e 107 GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
mbed_official 354:e67efb2aab0e 108 GPIO_InitStructure.Alternate = afnum;
mbed_official 354:e67efb2aab0e 109 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 174:8bb9f3a33240 110
mbed_official 129:0182c99221bc 111 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 76:aeb1df146756 112 // Warning: Need to reconnect under reset
mbed_official 76:aeb1df146756 113 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 76:aeb1df146756 114 //
mbed_official 76:aeb1df146756 115 //}
mbed_official 76:aeb1df146756 116 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 76:aeb1df146756 117 //
mbed_official 174:8bb9f3a33240 118 //}
mbed_official 76:aeb1df146756 119 }
mbed_official 76:aeb1df146756 120
mbed_official 76:aeb1df146756 121 /**
mbed_official 76:aeb1df146756 122 * Configure pin pull-up/pull-down
mbed_official 76:aeb1df146756 123 */
mbed_official 354:e67efb2aab0e 124 void pin_mode(PinName pin, PinMode mode)
mbed_official 354:e67efb2aab0e 125 {
mbed_official 227:7bd0639b8911 126 MBED_ASSERT(pin != (PinName)NC);
mbed_official 76:aeb1df146756 127 uint32_t port_index = STM_PORT(pin);
mbed_official 76:aeb1df146756 128 uint32_t pin_index = STM_PIN(pin);
mbed_official 76:aeb1df146756 129
mbed_official 76:aeb1df146756 130 // Enable GPIO clock
mbed_official 76:aeb1df146756 131 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 84:f54042cbc282 132 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 76:aeb1df146756 133
mbed_official 76:aeb1df146756 134 // Configure pull-up/pull-down resistors
mbed_official 76:aeb1df146756 135 uint32_t pupd = (uint32_t)mode;
mbed_official 414:4ec4c5b614b0 136 if (pupd > 2)
mbed_official 414:4ec4c5b614b0 137 {
mbed_official 227:7bd0639b8911 138 pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 354:e67efb2aab0e 139 }
mbed_official 76:aeb1df146756 140 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 76:aeb1df146756 141 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 174:8bb9f3a33240 142
mbed_official 76:aeb1df146756 143 }