marcus chiou / mbed-src

mbed library sources

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_STM32F3/pinmap.c@636:cb7d56e6ff53, 2015-10-27 (annotated)

Committer:
marcusC
Date:
Tue Oct 27 07:54:54 2015 +0000
Revision:
636:cb7d56e6ff53
Parent:
508:4f5903e025e6 
Changed for DELTA_DFCM_NNN40; Do not initialize flash at mbed_sdk_init()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 508:4f5903e025e6 1 /* mbed Microcontroller Library
mbed_official 508:4f5903e025e6 2 *******************************************************************************
mbed_official 508:4f5903e025e6 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 508:4f5903e025e6 4 * All rights reserved.
mbed_official 508:4f5903e025e6 5 *
mbed_official 508:4f5903e025e6 6 * Redistribution and use in source and binary forms, with or without
mbed_official 508:4f5903e025e6 7 * modification, are permitted provided that the following conditions are met:
mbed_official 508:4f5903e025e6 8 *
mbed_official 508:4f5903e025e6 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 508:4f5903e025e6 10 * this list of conditions and the following disclaimer.
mbed_official 508:4f5903e025e6 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 508:4f5903e025e6 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 508:4f5903e025e6 13 * and/or other materials provided with the distribution.
mbed_official 508:4f5903e025e6 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 508:4f5903e025e6 15 * may be used to endorse or promote products derived from this software
mbed_official 508:4f5903e025e6 16 * without specific prior written permission.
mbed_official 508:4f5903e025e6 17 *
mbed_official 508:4f5903e025e6 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 508:4f5903e025e6 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 508:4f5903e025e6 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 508:4f5903e025e6 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 508:4f5903e025e6 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 508:4f5903e025e6 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 508:4f5903e025e6 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 508:4f5903e025e6 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 508:4f5903e025e6 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 508:4f5903e025e6 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 508:4f5903e025e6 28 *******************************************************************************
mbed_official 508:4f5903e025e6 29 */
mbed_official 508:4f5903e025e6 30 #include "mbed_assert.h"
mbed_official 508:4f5903e025e6 31 #include "pinmap.h"
mbed_official 508:4f5903e025e6 32 #include "PortNames.h"
mbed_official 508:4f5903e025e6 33 #include "mbed_error.h"
mbed_official 508:4f5903e025e6 34
mbed_official 508:4f5903e025e6 35 // GPIO mode look-up table
mbed_official 508:4f5903e025e6 36 // Warning: the elements order must be the same as the one defined in PinNames.h
mbed_official 508:4f5903e025e6 37 static const uint32_t gpio_mode[13] = {
mbed_official 508:4f5903e025e6 38 GPIO_MODE_INPUT, // 0 = STM_MODE_INPUT
mbed_official 508:4f5903e025e6 39 GPIO_MODE_OUTPUT_PP, // 1 = STM_MODE_OUTPUT_PP
mbed_official 508:4f5903e025e6 40 GPIO_MODE_OUTPUT_OD, // 2 = STM_MODE_OUTPUT_OD
mbed_official 508:4f5903e025e6 41 GPIO_MODE_AF_PP, // 3 = STM_MODE_AF_PP
mbed_official 508:4f5903e025e6 42 GPIO_MODE_AF_OD, // 4 = STM_MODE_AF_OD
mbed_official 508:4f5903e025e6 43 GPIO_MODE_ANALOG, // 5 = STM_MODE_ANALOG
mbed_official 508:4f5903e025e6 44 GPIO_MODE_IT_RISING, // 6 = STM_MODE_IT_RISING
mbed_official 508:4f5903e025e6 45 GPIO_MODE_IT_FALLING, // 7 = STM_MODE_IT_FALLING
mbed_official 508:4f5903e025e6 46 GPIO_MODE_IT_RISING_FALLING, // 8 = STM_MODE_IT_RISING_FALLING
mbed_official 508:4f5903e025e6 47 GPIO_MODE_EVT_RISING, // 9 = STM_MODE_EVT_RISING
mbed_official 508:4f5903e025e6 48 GPIO_MODE_EVT_FALLING, // 10 = STM_MODE_EVT_FALLING
mbed_official 508:4f5903e025e6 49 GPIO_MODE_EVT_RISING_FALLING, // 11 = STM_MODE_EVT_RISING_FALLING
mbed_official 508:4f5903e025e6 50 0x10000000 // 12 = STM_MODE_IT_EVT_RESET (not in STM32Cube HAL)
mbed_official 508:4f5903e025e6 51 };
mbed_official 508:4f5903e025e6 52
mbed_official 508:4f5903e025e6 53 // Enable GPIO clock and return GPIO base address
mbed_official 508:4f5903e025e6 54 uint32_t Set_GPIO_Clock(uint32_t port_idx)
mbed_official 508:4f5903e025e6 55 {
mbed_official 508:4f5903e025e6 56 uint32_t gpio_add = 0;
mbed_official 508:4f5903e025e6 57 switch (port_idx) {
mbed_official 508:4f5903e025e6 58 case PortA:
mbed_official 508:4f5903e025e6 59 gpio_add = GPIOA_BASE;
mbed_official 508:4f5903e025e6 60 __GPIOA_CLK_ENABLE();
mbed_official 508:4f5903e025e6 61 break;
mbed_official 508:4f5903e025e6 62 case PortB:
mbed_official 508:4f5903e025e6 63 gpio_add = GPIOB_BASE;
mbed_official 508:4f5903e025e6 64 __GPIOB_CLK_ENABLE();
mbed_official 508:4f5903e025e6 65 break;
mbed_official 508:4f5903e025e6 66 case PortC:
mbed_official 508:4f5903e025e6 67 gpio_add = GPIOC_BASE;
mbed_official 508:4f5903e025e6 68 __GPIOC_CLK_ENABLE();
mbed_official 508:4f5903e025e6 69 break;
mbed_official 508:4f5903e025e6 70 case PortD:
mbed_official 508:4f5903e025e6 71 gpio_add = GPIOD_BASE;
mbed_official 508:4f5903e025e6 72 __GPIOD_CLK_ENABLE();
mbed_official 508:4f5903e025e6 73 break;
mbed_official 508:4f5903e025e6 74 #if defined(GPIOE_BASE)
mbed_official 508:4f5903e025e6 75 case PortE:
mbed_official 508:4f5903e025e6 76 gpio_add = GPIOE_BASE;
mbed_official 508:4f5903e025e6 77 __GPIOE_CLK_ENABLE();
mbed_official 508:4f5903e025e6 78 break;
mbed_official 508:4f5903e025e6 79 #endif
mbed_official 508:4f5903e025e6 80 case PortF:
mbed_official 508:4f5903e025e6 81 gpio_add = GPIOF_BASE;
mbed_official 508:4f5903e025e6 82 __GPIOF_CLK_ENABLE();
mbed_official 508:4f5903e025e6 83 break;
mbed_official 508:4f5903e025e6 84 default:
mbed_official 508:4f5903e025e6 85 error("Pinmap error: wrong port number.");
mbed_official 508:4f5903e025e6 86 break;
mbed_official 508:4f5903e025e6 87 }
mbed_official 508:4f5903e025e6 88 return gpio_add;
mbed_official 508:4f5903e025e6 89 }
mbed_official 508:4f5903e025e6 90
mbed_official 508:4f5903e025e6 91 /**
mbed_official 508:4f5903e025e6 92 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 508:4f5903e025e6 93 */
mbed_official 508:4f5903e025e6 94 void pin_function(PinName pin, int data)
mbed_official 508:4f5903e025e6 95 {
mbed_official 508:4f5903e025e6 96 MBED_ASSERT(pin != (PinName)NC);
mbed_official 508:4f5903e025e6 97 // Get the pin informations
mbed_official 508:4f5903e025e6 98 uint32_t mode = STM_PIN_MODE(data);
mbed_official 508:4f5903e025e6 99 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 508:4f5903e025e6 100 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 508:4f5903e025e6 101
mbed_official 508:4f5903e025e6 102 uint32_t port_index = STM_PORT(pin);
mbed_official 508:4f5903e025e6 103 uint32_t pin_index = STM_PIN(pin);
mbed_official 508:4f5903e025e6 104
mbed_official 508:4f5903e025e6 105 // Enable GPIO clock
mbed_official 508:4f5903e025e6 106 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 508:4f5903e025e6 107 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 508:4f5903e025e6 108
mbed_official 508:4f5903e025e6 109 // Configure GPIO
mbed_official 508:4f5903e025e6 110 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 508:4f5903e025e6 111 GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
mbed_official 508:4f5903e025e6 112 GPIO_InitStructure.Mode = gpio_mode[mode];
mbed_official 508:4f5903e025e6 113 GPIO_InitStructure.Pull = pupd;
mbed_official 508:4f5903e025e6 114 GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
mbed_official 508:4f5903e025e6 115 GPIO_InitStructure.Alternate = afnum;
mbed_official 508:4f5903e025e6 116 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 508:4f5903e025e6 117
mbed_official 508:4f5903e025e6 118 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 508:4f5903e025e6 119 // Warning: Need to reconnect under reset
mbed_official 508:4f5903e025e6 120 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 508:4f5903e025e6 121 //
mbed_official 508:4f5903e025e6 122 //}
mbed_official 508:4f5903e025e6 123 }
mbed_official 508:4f5903e025e6 124
mbed_official 508:4f5903e025e6 125 /**
mbed_official 508:4f5903e025e6 126 * Configure pin pull-up/pull-down
mbed_official 508:4f5903e025e6 127 */
mbed_official 508:4f5903e025e6 128 void pin_mode(PinName pin, PinMode mode)
mbed_official 508:4f5903e025e6 129 {
mbed_official 508:4f5903e025e6 130 MBED_ASSERT(pin != (PinName)NC);
mbed_official 508:4f5903e025e6 131 uint32_t port_index = STM_PORT(pin);
mbed_official 508:4f5903e025e6 132 uint32_t pin_index = STM_PIN(pin);
mbed_official 508:4f5903e025e6 133
mbed_official 508:4f5903e025e6 134 // Enable GPIO clock
mbed_official 508:4f5903e025e6 135 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 508:4f5903e025e6 136 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 508:4f5903e025e6 137
mbed_official 508:4f5903e025e6 138 // Configure pull-up/pull-down resistors
mbed_official 508:4f5903e025e6 139 uint32_t pupd = (uint32_t)mode;
mbed_official 508:4f5903e025e6 140 if (pupd > 2) {
mbed_official 508:4f5903e025e6 141 pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 508:4f5903e025e6 142 }
mbed_official 508:4f5903e025e6 143 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 508:4f5903e025e6 144 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 508:4f5903e025e6 145 }