mbed library with additional peripherals for ST F401 board
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This mbed LIB has additional peripherals for ST F401 board
- UART2 : PA_3 rx, PA_2 tx
- UART3 : PC_7 rx, PC_6 tx
- I2C2 : PB_3 SDA, PB_10 SCL
- I2C3 : PB_4 SDA, PA_8 SCL
targets/hal/TARGET_STM/TARGET_NUCLEO_F030R8/pinmap.c
- Committer:
- mbed_official
- Date:
- 2014-01-27
- Revision:
- 76:aeb1df146756
- Child:
- 77:b5886236e6f0
File content as of revision 76:aeb1df146756:
/* 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 "error.h" /** * Configure pin (mode, speed, output type and pull-up/pull-down) */ void pin_function(PinName pin, int data) { GPIO_TypeDef *gpio; GPIO_InitTypeDef GPIO_InitStructure; 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); // Get GPIO structure base address and enable clock switch (port_index) { case PortA: gpio = (GPIO_TypeDef *)GPIOA_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); break; case PortB: gpio = (GPIO_TypeDef *)GPIOB_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE); break; case PortC: gpio = (GPIO_TypeDef *)GPIOC_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE); break; case PortD: gpio = (GPIO_TypeDef *)GPIOD_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE); break; case PortF: gpio = (GPIO_TypeDef *)GPIOF_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE); break; default: error("GPIO port number is not correct."); break; } // Configure GPIO 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); // Configure Alternate Function if (afnum != 0xFF) { GPIO_PinAFConfig(gpio, (uint16_t)pin_index, afnum); } // *** 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) { GPIO_TypeDef *gpio; if (pin == NC) return; uint32_t port_index = STM_PORT(pin); uint32_t pin_index = STM_PIN(pin); // Get GPIO structure base address and enable clock switch (port_index) { case PortA: gpio = (GPIO_TypeDef *)GPIOA_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE); break; case PortB: gpio = (GPIO_TypeDef *)GPIOB_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOB, ENABLE); break; case PortC: gpio = (GPIO_TypeDef *)GPIOC_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE); break; case PortD: gpio = (GPIO_TypeDef *)GPIOD_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOD, ENABLE); break; case PortF: gpio = (GPIO_TypeDef *)GPIOF_BASE; RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE); break; default: error("GPIO port number is not correct."); break; } // 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)); }