shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

Fork of mbed-src by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F334R8/pinmap.c@250:a49055e7a707, 2014-07-08 (annotated)

Committer:
mbed_official
Date:
Tue Jul 08 11:15:08 2014 +0100
Revision:
250:a49055e7a707
Parent:
237:f3da66175598
Child:
251:de9a1e4ffd79
Synchronized with git revision 3197042b65f8d28e856e1a7812d45e2fbe80e3f1



Full URL: https://github.com/mbedmicro/mbed/commit/3197042b65f8d28e856e1a7812d45e2fbe80e3f1/



error.h -> mbed_error.h

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 237:f3da66175598 1 /* mbed Microcontroller Library
mbed_official 237:f3da66175598 2 *******************************************************************************
mbed_official 237:f3da66175598 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 237:f3da66175598 4 * All rights reserved.
mbed_official 237:f3da66175598 5 *
mbed_official 237:f3da66175598 6 * Redistribution and use in source and binary forms, with or without
mbed_official 237:f3da66175598 7 * modification, are permitted provided that the following conditions are met:
mbed_official 237:f3da66175598 8 *
mbed_official 237:f3da66175598 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 237:f3da66175598 10 * this list of conditions and the following disclaimer.
mbed_official 237:f3da66175598 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 237:f3da66175598 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 237:f3da66175598 13 * and/or other materials provided with the distribution.
mbed_official 237:f3da66175598 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 237:f3da66175598 15 * may be used to endorse or promote products derived from this software
mbed_official 237:f3da66175598 16 * without specific prior written permission.
mbed_official 237:f3da66175598 17 *
mbed_official 237:f3da66175598 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 237:f3da66175598 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 237:f3da66175598 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 237:f3da66175598 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 237:f3da66175598 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 237:f3da66175598 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 237:f3da66175598 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 237:f3da66175598 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 237:f3da66175598 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 237:f3da66175598 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 237:f3da66175598 28 *******************************************************************************
mbed_official 237:f3da66175598 29 */
mbed_official 237:f3da66175598 30 #include "mbed_assert.h"
mbed_official 237:f3da66175598 31 #include "pinmap.h"
mbed_official 237:f3da66175598 32 #include "PortNames.h"
mbed_official 250:a49055e7a707 33 #include "mbed_error.h"
mbed_official 237:f3da66175598 34
mbed_official 237:f3da66175598 35 // GPIO mode look-up table
mbed_official 237:f3da66175598 36 static const uint32_t gpio_mode[12] = {
mbed_official 237:f3da66175598 37 0x00000000, // 0 = GPIO_MODE_INPUT
mbed_official 237:f3da66175598 38 0x00000001, // 1 = GPIO_MODE_OUTPUT_PP
mbed_official 237:f3da66175598 39 0x00000011, // 2 = GPIO_MODE_OUTPUT_OD
mbed_official 237:f3da66175598 40 0x00000002, // 3 = GPIO_MODE_AF_PP
mbed_official 237:f3da66175598 41 0x00000012, // 4 = GPIO_MODE_AF_OD
mbed_official 237:f3da66175598 42 0x00000003, // 5 = GPIO_MODE_ANALOG
mbed_official 237:f3da66175598 43 0x10110000, // 6 = GPIO_MODE_IT_RISING
mbed_official 237:f3da66175598 44 0x10210000, // 7 = GPIO_MODE_IT_FALLING
mbed_official 237:f3da66175598 45 0x10310000, // 8 = GPIO_MODE_IT_RISING_FALLING
mbed_official 237:f3da66175598 46 0x10120000, // 9 = GPIO_MODE_EVT_RISING
mbed_official 237:f3da66175598 47 0x10220000, // 10 = GPIO_MODE_EVT_FALLING
mbed_official 237:f3da66175598 48 0x10320000 // 11 = GPIO_MODE_EVT_RISING_FALLING
mbed_official 237:f3da66175598 49 };
mbed_official 237:f3da66175598 50
mbed_official 237:f3da66175598 51 // Enable GPIO clock and return GPIO base address
mbed_official 237:f3da66175598 52 uint32_t Set_GPIO_Clock(uint32_t port_idx)
mbed_official 237:f3da66175598 53 {
mbed_official 237:f3da66175598 54 uint32_t gpio_add = 0;
mbed_official 237:f3da66175598 55 switch (port_idx) {
mbed_official 237:f3da66175598 56 case PortA:
mbed_official 237:f3da66175598 57 gpio_add = GPIOA_BASE;
mbed_official 237:f3da66175598 58 __GPIOA_CLK_ENABLE();
mbed_official 237:f3da66175598 59 break;
mbed_official 237:f3da66175598 60 case PortB:
mbed_official 237:f3da66175598 61 gpio_add = GPIOB_BASE;
mbed_official 237:f3da66175598 62 __GPIOB_CLK_ENABLE();
mbed_official 237:f3da66175598 63 break;
mbed_official 237:f3da66175598 64 case PortC:
mbed_official 237:f3da66175598 65 gpio_add = GPIOC_BASE;
mbed_official 237:f3da66175598 66 __GPIOC_CLK_ENABLE();
mbed_official 237:f3da66175598 67 break;
mbed_official 237:f3da66175598 68 case PortD:
mbed_official 237:f3da66175598 69 gpio_add = GPIOD_BASE;
mbed_official 237:f3da66175598 70 __GPIOD_CLK_ENABLE();
mbed_official 237:f3da66175598 71 break;
mbed_official 237:f3da66175598 72 case PortF:
mbed_official 237:f3da66175598 73 gpio_add = GPIOF_BASE;
mbed_official 237:f3da66175598 74 __GPIOF_CLK_ENABLE();
mbed_official 237:f3da66175598 75 break;
mbed_official 237:f3da66175598 76 default:
mbed_official 237:f3da66175598 77 error("Pinmap error: wrong port number.");
mbed_official 237:f3da66175598 78 break;
mbed_official 237:f3da66175598 79 }
mbed_official 237:f3da66175598 80 return gpio_add;
mbed_official 237:f3da66175598 81 }
mbed_official 237:f3da66175598 82
mbed_official 237:f3da66175598 83 /**
mbed_official 237:f3da66175598 84 * Configure pin (mode, speed, output type and pull-up/pull-down)
mbed_official 237:f3da66175598 85 */
mbed_official 237:f3da66175598 86 void pin_function(PinName pin, int data)
mbed_official 237:f3da66175598 87 {
mbed_official 237:f3da66175598 88 MBED_ASSERT(pin != (PinName)NC);
mbed_official 237:f3da66175598 89 // Get the pin informations
mbed_official 237:f3da66175598 90 uint32_t mode = STM_PIN_MODE(data);
mbed_official 237:f3da66175598 91 uint32_t pupd = STM_PIN_PUPD(data);
mbed_official 237:f3da66175598 92 uint32_t afnum = STM_PIN_AFNUM(data);
mbed_official 237:f3da66175598 93
mbed_official 237:f3da66175598 94 uint32_t port_index = STM_PORT(pin);
mbed_official 237:f3da66175598 95 uint32_t pin_index = STM_PIN(pin);
mbed_official 237:f3da66175598 96
mbed_official 237:f3da66175598 97 // Enable GPIO clock
mbed_official 237:f3da66175598 98 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 237:f3da66175598 99 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 237:f3da66175598 100
mbed_official 237:f3da66175598 101 // Configure GPIO
mbed_official 237:f3da66175598 102 GPIO_InitTypeDef GPIO_InitStructure;
mbed_official 237:f3da66175598 103 GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
mbed_official 237:f3da66175598 104 GPIO_InitStructure.Mode = gpio_mode[mode];
mbed_official 237:f3da66175598 105 GPIO_InitStructure.Pull = pupd;
mbed_official 237:f3da66175598 106 GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
mbed_official 237:f3da66175598 107 GPIO_InitStructure.Alternate = afnum;
mbed_official 237:f3da66175598 108 HAL_GPIO_Init(gpio, &GPIO_InitStructure);
mbed_official 237:f3da66175598 109
mbed_official 237:f3da66175598 110 // [TODO] Disconnect JTAG-DP + SW-DP signals.
mbed_official 237:f3da66175598 111 // Warning: Need to reconnect under reset
mbed_official 237:f3da66175598 112 //if ((pin == PA_13) || (pin == PA_14)) {
mbed_official 237:f3da66175598 113 //
mbed_official 237:f3da66175598 114 //}
mbed_official 237:f3da66175598 115 }
mbed_official 237:f3da66175598 116
mbed_official 237:f3da66175598 117 /**
mbed_official 237:f3da66175598 118 * Configure pin pull-up/pull-down
mbed_official 237:f3da66175598 119 */
mbed_official 237:f3da66175598 120 void pin_mode(PinName pin, PinMode mode)
mbed_official 237:f3da66175598 121 {
mbed_official 237:f3da66175598 122 MBED_ASSERT(pin != (PinName)NC);
mbed_official 237:f3da66175598 123 uint32_t port_index = STM_PORT(pin);
mbed_official 237:f3da66175598 124 uint32_t pin_index = STM_PIN(pin);
mbed_official 237:f3da66175598 125
mbed_official 237:f3da66175598 126 // Enable GPIO clock
mbed_official 237:f3da66175598 127 uint32_t gpio_add = Set_GPIO_Clock(port_index);
mbed_official 237:f3da66175598 128 GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
mbed_official 237:f3da66175598 129
mbed_official 237:f3da66175598 130 // Configure pull-up/pull-down resistors
mbed_official 237:f3da66175598 131 uint32_t pupd = (uint32_t)mode;
mbed_official 237:f3da66175598 132 if (pupd > 2) {
mbed_official 237:f3da66175598 133 pupd = 0; // Open-drain = No pull-up/No pull-down
mbed_official 237:f3da66175598 134 }
mbed_official 237:f3da66175598 135 gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2)));
mbed_official 237:f3da66175598 136 gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
mbed_official 237:f3da66175598 137
mbed_official 237:f3da66175598 138 }