210 lines
6.0 KiB
C
210 lines
6.0 KiB
C
/**
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******************************************************************************
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* @file stm32vl_discovery.c
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* @author MCD Application Team
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* @version V1.0.2
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* @date 14-April-2017
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* @brief This file provides
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* - set of firmware functions to manage Led and push-button
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* available on STM32VL-Discovery board from STMicroelectronics.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2015 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "stm32vl_discovery.h"
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/** @addtogroup BSP
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* @{
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*/
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/** @defgroup STM32VL_DISCOVERY STM32VL Discovery
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* @brief This file provides firmware functions to manage Leds and push-buttons
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* available on STM32VL discovery board from STMicroelectronics.
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* @{
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*/
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/** @defgroup STM32VL_DISCOVERY_Private_Defines STM32VL DISCOVERY Private Defines
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* @{
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*/
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/**
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* @brief STM32VL-Discovery BSP Driver version number
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*/
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#define __STM32VL_DISCO_BSP_VERSION_MAIN (0x01) /*!< [31:24] main version */
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#define __STM32VL_DISCO_BSP_VERSION_SUB1 (0x00) /*!< [23:16] sub1 version */
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#define __STM32VL_DISCO_BSP_VERSION_SUB2 (0x03) /*!< [15:8] sub2 version */
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#define __STM32VL_DISCO_BSP_VERSION_RC (0x00) /*!< [7:0] release candidate */
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#define __STM32VL_DISCO_BSP_VERSION ((__STM32VL_DISCO_BSP_VERSION_MAIN << 24)\
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|(__STM32VL_DISCO_BSP_VERSION_SUB1 << 16)\
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|(__STM32VL_DISCO_BSP_VERSION_SUB2 << 8 )\
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|(__STM32VL_DISCO_BSP_VERSION_RC))
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/**
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* @}
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*/
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/** @defgroup STM32VL_DISCOVERY_Private_Variables STM32VL DISCOVERY Private Variables
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* @{
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*/
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GPIO_TypeDef* LED_PORT[LEDn] = {LED3_GPIO_PORT,
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LED4_GPIO_PORT};
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const uint16_t LED_PIN[LEDn] = {LED3_PIN,
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LED4_PIN};
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GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {USER_BUTTON_GPIO_PORT};
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const uint16_t BUTTON_PIN[BUTTONn] = {USER_BUTTON_PIN};
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const uint8_t BUTTON_IRQn[BUTTONn] = {USER_BUTTON_EXTI_IRQn};
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/**
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* @}
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*/
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/** @defgroup STM32VL_DISCOVERY_Exported_Functions STM32VL DISCOVERY Exported Functions
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* @{
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*/
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/**
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* @brief This method returns the STM32VL-Discovery BSP Driver version
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* @retval version : 0xXYZR (8bits for each decimal, R for RC)
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*/
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uint32_t BSP_GetVersion(void)
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{
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return __STM32VL_DISCO_BSP_VERSION;
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}
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/**
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* @brief Configures LED GPIO.
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* @param Led: Specifies the Led to be configured.
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* This parameter can be one of following parameters:
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* @arg LED3
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* @arg LED4
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*/
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void BSP_LED_Init(Led_TypeDef Led)
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{
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GPIO_InitTypeDef gpioinitstruct = {0};
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/* Enable the GPIO_LED Clock */
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LEDx_GPIO_CLK_ENABLE(Led);
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/* Configure the GPIO_LED pin */
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gpioinitstruct.Pin = LED_PIN[Led];
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gpioinitstruct.Mode = GPIO_MODE_OUTPUT_PP;
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gpioinitstruct.Pull = GPIO_NOPULL;
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gpioinitstruct.Speed = GPIO_SPEED_FREQ_HIGH;
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HAL_GPIO_Init(LED_PORT[Led], &gpioinitstruct);
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/* Reset PIN to switch off the LED */
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HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_RESET);
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}
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/**
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* @brief Turns selected LED On.
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* @param Led: Specifies the Led to be set on.
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* This parameter can be one of following parameters:
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* @arg LED3
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* @arg LED4
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*/
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void BSP_LED_On(Led_TypeDef Led)
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{
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HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_SET);
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}
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/**
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* @brief Turns selected LED Off.
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* @param Led: Specifies the Led to be set off.
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* This parameter can be one of following parameters:
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* @arg LED3
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* @arg LED4
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*/
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void BSP_LED_Off(Led_TypeDef Led)
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{
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HAL_GPIO_WritePin(LED_PORT[Led], LED_PIN[Led], GPIO_PIN_RESET);
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}
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/**
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* @brief Toggles the selected LED.
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* @param Led: Specifies the Led to be toggled.
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* This parameter can be one of following parameters:
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* @arg LED3
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* @arg LED4
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*/
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void BSP_LED_Toggle(Led_TypeDef Led)
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{
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HAL_GPIO_TogglePin(LED_PORT[Led], LED_PIN[Led]);
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}
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/**
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* @brief Configures Button GPIO and EXTI Line.
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* @param Button: Specifies the Button to be configured.
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* This parameter should be: BUTTON_USER
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* @param Button_Mode: Specifies Button mode.
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* This parameter can be one of following parameters:
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* @arg BUTTON_MODE_GPIO: Button will be used as simple IO
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* @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt
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* generation capability
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*/
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void BSP_PB_Init(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode)
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{
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GPIO_InitTypeDef gpioinitstruct = {0};
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/* Enable the BUTTON Clock */
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BUTTONx_GPIO_CLK_ENABLE(Button);
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gpioinitstruct.Pin = BUTTON_PIN[Button];
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gpioinitstruct.Pull = GPIO_NOPULL;
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gpioinitstruct.Speed = GPIO_SPEED_FREQ_HIGH;
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if (Button_Mode == BUTTON_MODE_GPIO)
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{
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/* Configure Button pin as input */
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gpioinitstruct.Mode = GPIO_MODE_INPUT;
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HAL_GPIO_Init(BUTTON_PORT[Button], &gpioinitstruct);
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}
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else if (Button_Mode == BUTTON_MODE_EXTI)
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{
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/* Configure Button pin as input with External interrupt */
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gpioinitstruct.Mode = GPIO_MODE_IT_RISING;
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HAL_GPIO_Init(BUTTON_PORT[Button], &gpioinitstruct);
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/* Enable and set Button EXTI Interrupt to the lowest priority */
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HAL_NVIC_SetPriority((IRQn_Type)(BUTTON_IRQn[Button]), 0x0F, 0);
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HAL_NVIC_EnableIRQ((IRQn_Type)(BUTTON_IRQn[Button]));
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}
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}
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/**
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* @brief Returns the selected Button state.
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* @param Button: Specifies the Button to be checked.
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* This parameter should be: BUTTON_USER
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* @retval Button state.
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*/
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uint32_t BSP_PB_GetState(Button_TypeDef Button)
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{
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return HAL_GPIO_ReadPin(BUTTON_PORT[Button], BUTTON_PIN[Button]);
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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