Guido Grassel / mbed-src

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Dependents:   Seeed_Barometer_Sensor_Example

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_DISCO_F429ZI/pinmap.c@340:28d1f895c6fe, 2014-10-09 (annotated)

Committer:
mbed_official
Date:
Thu Oct 09 08:15:07 2014 +0100
Revision:
340:28d1f895c6fe
Synchronized with git revision b5a4c8e80393336b2656fb29ab46d405d3068602



Full URL: https://github.com/mbedmicro/mbed/commit/b5a4c8e80393336b2656fb29ab46d405d3068602/



HAL: nrf51822 - Few fixes for PWM and Serial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 340:28d1f895c6fe 1 /* mbed Microcontroller Library
mbed_official 340:28d1f895c6fe 2 *******************************************************************************
mbed_official 340:28d1f895c6fe 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 340:28d1f895c6fe 4 * All rights reserved.
mbed_official 340:28d1f895c6fe 5 *
mbed_official 340:28d1f895c6fe 6 * Redistribution and use in source and binary forms, with or without
mbed_official 340:28d1f895c6fe 7 * modification, are permitted provided that the following conditions are met:
mbed_official 340:28d1f895c6fe 8 *
mbed_official 340:28d1f895c6fe 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 340:28d1f895c6fe 10 * this list of conditions and the following disclaimer.
mbed_official 340:28d1f895c6fe 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 340:28d1f895c6fe 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 340:28d1f895c6fe 13 * and/or other materials provided with the distribution.
mbed_official 340:28d1f895c6fe 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 340:28d1f895c6fe 15 * may be used to endorse or promote products derived from this software
mbed_official 340:28d1f895c6fe 16 * without specific prior written permission.
mbed_official 340:28d1f895c6fe 17 *
mbed_official 340:28d1f895c6fe 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 340:28d1f895c6fe 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 340:28d1f895c6fe 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 340:28d1f895c6fe 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 340:28d1f895c6fe 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 340:28d1f895c6fe 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 340:28d1f895c6fe 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 340:28d1f895c6fe 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 340:28d1f895c6fe 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 340:28d1f895c6fe 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 340:28d1f895c6fe 28 *******************************************************************************
mbed_official 340:28d1f895c6fe 29 */
mbed_official 340:28d1f895c6fe 30 #include "mbed_assert.h"
mbed_official 340:28d1f895c6fe 31 #include "pinmap.h"
mbed_official 340:28d1f895c6fe 32 #include "PortNames.h"
mbed_official 340:28d1f895c6fe 33 #include "mbed_error.h"
mbed_official 340:28d1f895c6fe 34
mbed_official 340:28d1f895c6fe 35 // GPIO mode look-up table
mbed_official 340:28d1f895c6fe 36 static const uint32_t gpio_mode[13] = {
mbed_official 340:28d1f895c6fe 37 0x00000000, // 0 = GPIO_MODE_INPUT
mbed_official 340:28d1f895c6fe 38 0x00000001, // 1 = GPIO_MODE_OUTPUT_PP
mbed_official 340:28d1f895c6fe 39 0x00000011, // 2 = GPIO_MODE_OUTPUT_OD
mbed_official 340:28d1f895c6fe 40 0x00000002, // 3 = GPIO_MODE_AF_PP
mbed_official 340:28d1f895c6fe 41 0x00000012, // 4 = GPIO_MODE_AF_OD
mbed_official 340:28d1f895c6fe 42 0x00000003, // 5 = GPIO_MODE_ANALOG
mbed_official 340:28d1f895c6fe 43 0x10110000, // 6 = GPIO_MODE_IT_RISING
mbed_official 340:28d1f895c6fe 44 0x10210000, // 7 = GPIO_MODE_IT_FALLING
mbed_official 340:28d1f895c6fe 45 0x10310000, // 8 = GPIO_MODE_IT_RISING_FALLING
mbed_official 340:28d1f895c6fe 46 0x10120000, // 9 = GPIO_MODE_EVT_RISING
mbed_official 340:28d1f895c6fe 47 0x10220000, // 10 = GPIO_MODE_EVT_FALLING
mbed_official 340:28d1f895c6fe 48 0x10320000, // 11 = GPIO_MODE_EVT_RISING_FALLING
mbed_official 340:28d1f895c6fe 49 0x10000000 // 12 = Reset GPIO_MODE_IT_EVT
mbed_official 340:28d1f895c6fe 50 };
mbed_official 340:28d1f895c6fe 51
mbed_official 340:28d1f895c6fe 52 // Enable GPIO clock and return GPIO base address
mbed_official 340:28d1f895c6fe 53 uint32_t Set_GPIO_Clock(uint32_t port_idx)
mbed_official 340:28d1f895c6fe 54 {
mbed_official 340:28d1f895c6fe 55 uint32_t gpio_add = 0;
mbed_official 340:28d1f895c6fe 56 switch (port_idx) {
mbed_official 340:28d1f895c6fe 57 case PortA:
mbed_official 340:28d1f895c6fe 58 gpio_add = GPIOA_BASE;
mbed_official 340:28d1f895c6fe 59 __GPIOA_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 60 break;
mbed_official 340:28d1f895c6fe 61 case PortB:
mbed_official 340:28d1f895c6fe 62 gpio_add = GPIOB_BASE;
mbed_official 340:28d1f895c6fe 63 __GPIOB_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 64 break;
mbed_official 340:28d1f895c6fe 65 case PortC:
mbed_official 340:28d1f895c6fe 66 gpio_add = GPIOC_BASE;
mbed_official 340:28d1f895c6fe 67 __GPIOC_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 68 break;
mbed_official 340:28d1f895c6fe 69 case PortD:
mbed_official 340:28d1f895c6fe 70 gpio_add = GPIOD_BASE;
mbed_official 340:28d1f895c6fe 71 __GPIOD_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 72 break;
mbed_official 340:28d1f895c6fe 73 case PortE:
mbed_official 340:28d1f895c6fe 74 gpio_add = GPIOE_BASE;
mbed_official 340:28d1f895c6fe 75 __GPIOE_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 76 break;
mbed_official 340:28d1f895c6fe 77 case PortF:
mbed_official 340:28d1f895c6fe 78 gpio_add = GPIOF_BASE;
mbed_official 340:28d1f895c6fe 79 __GPIOF_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 80 break;
mbed_official 340:28d1f895c6fe 81 case PortG:
mbed_official 340:28d1f895c6fe 82 gpio_add = GPIOG_BASE;
mbed_official 340:28d1f895c6fe 83 __GPIOG_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 84 break;
mbed_official 340:28d1f895c6fe 85 case PortH:
mbed_official 340:28d1f895c6fe 86 gpio_add = GPIOH_BASE;
mbed_official 340:28d1f895c6fe 87 __GPIOH_CLK_ENABLE();
mbed_official 340:28d1f895c6fe 88 break;
mbed_official 340:28d1f895c6fe 89 default:
mbed_official 340:28d1f895c6fe 90 error("Pinmap error: wrong port number.");
mbed_official 340:28d1f895c6fe 91 break;
mbed_official 340:28d1f895c6fe 92 }
mbed_official 340:28d1f895c6fe 93 return gpio_add;
mbed_official 340:28d1f895c6fe 94 }
mbed_official 340:28d1f895c6fe 95
mbed_official 340:28d1f895c6fe 96 /**
mbed_official 340:28d1f895c6fe 97 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 340:28d1f895c6fe 98 */
mbed_official 340:28d1f895c6fe 99 void pin_function(PinName pin, int data)
mbed_official 340:28d1f895c6fe 100 {
mbed_official 340:28d1f895c6fe 101 MBED_ASSERT(pin != (PinName)NC);
mbed_official 340:28d1f895c6fe 102 // Get the pin informations
mbed_official 340:28d1f895c6fe 103 uint32_t mode = STM_PIN_MODE(data);
mbed_official 340:28d1f895c6fe 104 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 340:28d1f895c6fe 105 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 340:28d1f895c6fe 106
mbed_official 340:28d1f895c6fe 107 uint32_t port_index = STM_PORT(pin);
mbed_official 340:28d1f895c6fe 108 uint32_t pin_index = STM_PIN(pin);
mbed_official 340:28d1f895c6fe 109
mbed_official 340:28d1f895c6fe 110 // Enable GPIO clock
mbed_official 340:28d1f895c6fe 111 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 340:28d1f895c6fe 112 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 340:28d1f895c6fe 113
mbed_official 340:28d1f895c6fe 114 // Configure GPIO
mbed_official 340:28d1f895c6fe 115 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 340:28d1f895c6fe 116 GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
mbed_official 340:28d1f895c6fe 117 GPIO_InitStructure.Mode = gpio_mode[mode];
mbed_official 340:28d1f895c6fe 118 GPIO_InitStructure.Pull = pupd;
mbed_official 340:28d1f895c6fe 119 GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
mbed_official 340:28d1f895c6fe 120 GPIO_InitStructure.Alternate = afnum;
mbed_official 340:28d1f895c6fe 121 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 340:28d1f895c6fe 122
mbed_official 340:28d1f895c6fe 123 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 340:28d1f895c6fe 124 // Warning: Need to reconnect under reset
mbed_official 340:28d1f895c6fe 125 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 340:28d1f895c6fe 126 //
mbed_official 340:28d1f895c6fe 127 //}
mbed_official 340:28d1f895c6fe 128 //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
mbed_official 340:28d1f895c6fe 129 //
mbed_official 340:28d1f895c6fe 130 //}
mbed_official 340:28d1f895c6fe 131 }
mbed_official 340:28d1f895c6fe 132
mbed_official 340:28d1f895c6fe 133 /**
mbed_official 340:28d1f895c6fe 134 * Configure pin pull-up/pull-down
mbed_official 340:28d1f895c6fe 135 */
mbed_official 340:28d1f895c6fe 136 void pin_mode(PinName pin, PinMode mode)
mbed_official 340:28d1f895c6fe 137 {
mbed_official 340:28d1f895c6fe 138 MBED_ASSERT(pin != (PinName)NC);
mbed_official 340:28d1f895c6fe 139 uint32_t port_index = STM_PORT(pin);
mbed_official 340:28d1f895c6fe 140 uint32_t pin_index = STM_PIN(pin);
mbed_official 340:28d1f895c6fe 141
mbed_official 340:28d1f895c6fe 142 // Enable GPIO clock
mbed_official 340:28d1f895c6fe 143 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 340:28d1f895c6fe 144 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 340:28d1f895c6fe 145
mbed_official 340:28d1f895c6fe 146 // Configure pull-up/pull-down resistors
mbed_official 340:28d1f895c6fe 147 uint32_t pupd = (uint32_t)mode;
mbed_official 340:28d1f895c6fe 148 if (pupd > 2)
mbed_official 340:28d1f895c6fe 149 pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 340:28d1f895c6fe 150 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 340:28d1f895c6fe 151 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 340:28d1f895c6fe 152
mbed_official 340:28d1f895c6fe 153 }