--- /dev/null
+/**
+ ******************************************************************************
+ * @file stm32f4_discovery.c
+ * @author MCD Application Team
+ * @version V1.0.0
+ * @date 19-September-2011
+ * @brief This file provides set of firmware functions to manage Leds and
+ * push-button available on STM32F4-Discovery Kit from STMicroelectronics.
+ ******************************************************************************
+ * @attention
+ *
+ * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
+ * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
+ * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
+ * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
+ * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
+ * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
+ *
+ * <h2><center>© COPYRIGHT 2011 STMicroelectronics</center></h2>
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4_discovery.h"
+
+//ADDED BY ME!!!!!!!!!!!!!!!!!!!!
+#include "stm32f4xx_conf.h"
+
+
+/** @addtogroup Utilities
+ * @{
+ */
+
+/** @addtogroup STM32F4_DISCOVERY
+ * @{
+ */
+
+/** @defgroup STM32F4_DISCOVERY_LOW_LEVEL
+ * @brief This file provides set of firmware functions to manage Leds and push-button
+ * available on STM32F4-Discovery Kit from STMicroelectronics.
+ * @{
+ */
+
+/** @defgroup STM32F4_DISCOVERY_LOW_LEVEL_Private_TypesDefinitions
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup STM32F4_DISCOVERY_LOW_LEVEL_Private_Defines
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup STM32F4_DISCOVERY_LOW_LEVEL_Private_Macros
+ * @{
+ */
+/**
+ * @}
+ */
+
+
+/** @defgroup STM32F4_DISCOVERY_LOW_LEVEL_Private_Variables
+ * @{
+ */
+GPIO_TypeDef* GPIO_PORT[LEDn] = {LED4_GPIO_PORT, LED3_GPIO_PORT, LED5_GPIO_PORT,
+ LED6_GPIO_PORT};
+const uint16_t GPIO_PIN[LEDn] = {LED4_PIN, LED3_PIN, LED5_PIN,
+ LED6_PIN};
+const uint32_t GPIO_CLK[LEDn] = {LED4_GPIO_CLK, LED3_GPIO_CLK, LED5_GPIO_CLK,
+ LED6_GPIO_CLK};
+
+GPIO_TypeDef* BUTTON_PORT[BUTTONn] = {USER_BUTTON_GPIO_PORT };
+
+const uint16_t BUTTON_PIN[BUTTONn] = {USER_BUTTON_PIN };
+
+const uint32_t BUTTON_CLK[BUTTONn] = {USER_BUTTON_GPIO_CLK };
+
+const uint16_t BUTTON_EXTI_LINE[BUTTONn] = {USER_BUTTON_EXTI_LINE };
+
+const uint8_t BUTTON_PORT_SOURCE[BUTTONn] = {USER_BUTTON_EXTI_PORT_SOURCE};
+
+const uint8_t BUTTON_PIN_SOURCE[BUTTONn] = {USER_BUTTON_EXTI_PIN_SOURCE };
+const uint8_t BUTTON_IRQn[BUTTONn] = {USER_BUTTON_EXTI_IRQn };
+
+NVIC_InitTypeDef NVIC_InitStructure;
+
+/**
+ * @}
+ */
+
+
+/** @defgroup STM32F4_DISCOVERY_LOW_LEVEL_Private_FunctionPrototypes
+ * @{
+ */
+
+/**
+ * @}
+ */
+
+/** @defgroup STM32F4_DISCOVERY_LOW_LEVEL_Private_Functions
+ * @{
+ */
+
+/**
+ * @brief Configures LED GPIO.
+ * @param Led: Specifies the Led to be configured.
+ * This parameter can be one of following parameters:
+ * @arg LED4
+ * @arg LED3
+ * @arg LED5
+ * @arg LED6
+ * @retval None
+ */
+void STM_EVAL_LEDInit(Led_TypeDef Led)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+
+ /* Enable the GPIO_LED Clock */
+ RCC_AHB1PeriphClockCmd(GPIO_CLK[Led], ENABLE);
+
+ /* Configure the GPIO_LED pin */
+ GPIO_InitStructure.GPIO_Pin = GPIO_PIN[Led];
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
+ GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_Init(GPIO_PORT[Led], &GPIO_InitStructure);
+}
+
+/**
+ * @brief Turns selected LED On.
+ * @param Led: Specifies the Led to be set on.
+ * This parameter can be one of following parameters:
+ * @arg LED4
+ * @arg LED3
+ * @arg LED5
+ * @arg LED6
+ * @retval None
+ */
+void STM_EVAL_LEDOn(Led_TypeDef Led)
+{
+ GPIO_PORT[Led]->BSRRL = GPIO_PIN[Led];
+}
+
+/**
+ * @brief Turns selected LED Off.
+ * @param Led: Specifies the Led to be set off.
+ * This parameter can be one of following parameters:
+ * @arg LED4
+ * @arg LED3
+ * @arg LED5
+ * @arg LED6
+ * @retval None
+ */
+void STM_EVAL_LEDOff(Led_TypeDef Led)
+{
+ GPIO_PORT[Led]->BSRRH = GPIO_PIN[Led];
+}
+
+/**
+ * @brief Toggles the selected LED.
+ * @param Led: Specifies the Led to be toggled.
+ * This parameter can be one of following parameters:
+ * @arg LED4
+ * @arg LED3
+ * @arg LED5
+ * @arg LED6
+ * @retval None
+ */
+void STM_EVAL_LEDToggle(Led_TypeDef Led)
+{
+ GPIO_PORT[Led]->ODR ^= GPIO_PIN[Led];
+}
+
+/**
+ * @brief Configures Button GPIO and EXTI Line.
+ * @param Button: Specifies the Button to be configured.
+ * This parameter should be: BUTTON_USER
+ * @param Button_Mode: Specifies Button mode.
+ * This parameter can be one of following parameters:
+ * @arg BUTTON_MODE_GPIO: Button will be used as simple IO
+ * @arg BUTTON_MODE_EXTI: Button will be connected to EXTI line with interrupt
+ * generation capability
+ * @retval None
+ */
+void STM_EVAL_PBInit(Button_TypeDef Button, ButtonMode_TypeDef Button_Mode)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+ EXTI_InitTypeDef EXTI_InitStructure;
+ NVIC_InitTypeDef NVIC_InitStructure;
+
+ /* Enable the BUTTON Clock */
+ RCC_AHB1PeriphClockCmd(BUTTON_CLK[Button], ENABLE);
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
+
+ /* Configure Button pin as input */
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
+ GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+ GPIO_InitStructure.GPIO_Pin = BUTTON_PIN[Button];
+ GPIO_Init(BUTTON_PORT[Button], &GPIO_InitStructure);
+
+ if (Button_Mode == BUTTON_MODE_EXTI)
+ {
+ /* Connect Button EXTI Line to Button GPIO Pin */
+ SYSCFG_EXTILineConfig(BUTTON_PORT_SOURCE[Button], BUTTON_PIN_SOURCE[Button]);
+
+ /* Configure Button EXTI line */
+ EXTI_InitStructure.EXTI_Line = BUTTON_EXTI_LINE[Button];
+ EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
+ EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising;
+ EXTI_InitStructure.EXTI_LineCmd = ENABLE;
+ EXTI_Init(&EXTI_InitStructure);
+
+ /* Enable and set Button EXTI Interrupt to the lowest priority */
+ NVIC_InitStructure.NVIC_IRQChannel = BUTTON_IRQn[Button];
+ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
+ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
+ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+
+ NVIC_Init(&NVIC_InitStructure);
+ }
+}
+
+/**
+ * @brief Returns the selected Button state.
+ * @param Button: Specifies the Button to be checked.
+ * This parameter should be: BUTTON_USER
+ * @retval The Button GPIO pin value.
+ */
+uint32_t STM_EVAL_PBGetState(Button_TypeDef Button)
+{
+ return GPIO_ReadInputDataBit(BUTTON_PORT[Button], BUTTON_PIN[Button]);
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/
projects / fw / stlink / blobdiff