mbed library sources
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Diff: targets/hal/TARGET_STM/TARGET_STM32F3XX/pinmap.c
- Revision:
- 223:d98d59aec21a
- Parent:
- 222:96162ccfbf43
--- a/targets/hal/TARGET_STM/TARGET_STM32F3XX/pinmap.c Fri Jun 06 11:00:08 2014 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,133 +0,0 @@ -/* mbed Microcontroller Library - ******************************************************************************* - * Copyright (c) 2014, STMicroelectronics - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. Neither the name of STMicroelectronics nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER - * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - ******************************************************************************* - */ -#include "pinmap.h" -#include "PortNames.h" -#include "error.h" - -// Enable GPIO clock and return GPIO base address -uint32_t Set_GPIO_Clock(uint32_t port_idx) { - uint32_t gpio_add; - switch (port_idx) { - case PortA: - gpio_add = GPIOA_BASE; - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); - break; - case PortB: - gpio_add = GPIOB_BASE; - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE); - break; - case PortC: - gpio_add = GPIOC_BASE; - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE); - break; - case PortD: - gpio_add = GPIOD_BASE; - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE); - break; - case PortE: - gpio_add = GPIOE_BASE; - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOE, ENABLE); - break; - case PortF: - gpio_add = GPIOF_BASE; - RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE); - break; - default: - gpio_add = 0; - error("Port number is not correct."); - break; - } - return gpio_add; -} - -/** - * Configure pin (mode, speed, output type and pull-up/pull-down) - */ -void pin_function(PinName pin, int data) { - if (pin == NC) return; - - // Get the pin informations - uint32_t mode = STM_PIN_MODE(data); - uint32_t otype = STM_PIN_OTYPE(data); - uint32_t pupd = STM_PIN_PUPD(data); - uint32_t afnum = STM_PIN_AFNUM(data); - - uint32_t port_index = STM_PORT(pin); - uint32_t pin_index = STM_PIN(pin); - - // Enable GPIO clock - uint32_t gpio_add = Set_GPIO_Clock(port_index); - GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; - - // Configure Alternate Function - // Warning: Must be done before the GPIO is initialized - if (afnum != 0xFF) { - GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum); - } - - // Configure GPIO - GPIO_InitTypeDef GPIO_InitStructure; - GPIO_InitStructure.GPIO_Pin = (uint16_t)(1 << pin_index); - GPIO_InitStructure.GPIO_Mode = (GPIOMode_TypeDef)mode; - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_Level_3; - GPIO_InitStructure.GPIO_OType = (GPIOOType_TypeDef)otype; - GPIO_InitStructure.GPIO_PuPd = (GPIOPuPd_TypeDef)pupd; - GPIO_Init(gpio, &GPIO_InitStructure); - - // [TODO] Disconnect JTAG-DP + SW-DP signals. - // Warning: Need to reconnect under reset - //if ((pin == PA_13) || (pin == PA_14)) { - // - //} - //if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) { - // - //} -} - -/** - * Configure pin pull-up/pull-down - */ -void pin_mode(PinName pin, PinMode mode) { - if (pin == NC) return; - - uint32_t port_index = STM_PORT(pin); - uint32_t pin_index = STM_PIN(pin); - - // Enable GPIO clock - uint32_t gpio_add = Set_GPIO_Clock(port_index); - GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add; - - // Configure pull-up/pull-down resistors - uint32_t pupd = (uint32_t)mode; - if (pupd > 2) pupd = 0; // Open-drain = No pull-up/No pull-down - gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPDR0 << (pin_index * 2))); - gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2)); - -}