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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/EXTI/EXTI_Config/main.c')
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1 files changed, 212 insertions, 0 deletions
diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/EXTI/EXTI_Config/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/EXTI/EXTI_Config/main.c new file mode 100644 index 0000000..46f52f1 --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/EXTI/EXTI_Config/main.c @@ -0,0 +1,212 @@ +/** + ****************************************************************************** + * @file EXTI/EXTI_Config/main.c + * @author MCD Application Team + * @version V3.5.0 + * @date 08-April-2011 + * @brief Main program body + ****************************************************************************** + * @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 "stm32f10x.h" +#include "stm32_eval.h" + +/** @addtogroup STM32F10x_StdPeriph_Examples + * @{ + */ + +/** @addtogroup EXTI_Config + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +EXTI_InitTypeDef EXTI_InitStructure; +GPIO_InitTypeDef GPIO_InitStructure; +NVIC_InitTypeDef NVIC_InitStructure; + +/* Private function prototypes -----------------------------------------------*/ +void EXTI0_Config(void); +void EXTI9_5_Config(void); + +/* Private functions ---------------------------------------------------------*/ + +/** + * @brief Main program. + * @param None + * @retval None + */ +int main(void) +{ + /*!< At this stage the microcontroller clock setting is already configured, + this is done through SystemInit() function which is called from startup + file (startup_stm32f10x_xx.s) before to branch to application main. + To reconfigure the default setting of SystemInit() function, refer to + system_stm32f10x.c file + */ + + /* Initialize LED1 and Key Button mounted on STM3210X-EVAL board */ + STM_EVAL_LEDInit(LED1); + STM_EVAL_LEDInit(LED2); + + /* Configure PA.00 in interrupt mode */ + EXTI0_Config(); + + /* Configure PB.09 or PG.08 in interrupt mode */ + EXTI9_5_Config(); + + /* Generate software interrupt: simulate a falling edge applied on EXTI0 line */ + EXTI_GenerateSWInterrupt(EXTI_Line0); + + while (1) + { + } +} + +/** + * @brief Configure PA.00 in interrupt mode + * @param None + * @retval None + */ +void EXTI0_Config(void) +{ + /* Enable GPIOA clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); + + /* Configure PA.00 pin as input floating */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(GPIOA, &GPIO_InitStructure); + + /* Enable AFIO clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); + + /* Connect EXTI0 Line to PA.00 pin */ + GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0); + + /* Configure EXTI0 line */ + EXTI_InitStructure.EXTI_Line = EXTI_Line0; + 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 EXTI0 Interrupt to the lowest priority */ + NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +} + +/** + * @brief Configure PB.09 or PG.08 in interrupt mode + * @param None + * @retval None + */ +void EXTI9_5_Config(void) +{ +#if defined (STM32F10X_HD_VL) || defined (STM32F10X_HD) || defined (STM32F10X_XL) + /* Enable GPIOG clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOG, ENABLE); + + /* Configure PG.08 pin as input floating */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(GPIOG, &GPIO_InitStructure); + + /* Enable AFIO clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); + /* Connect EXTI8 Line to PG.08 pin */ + GPIO_EXTILineConfig(GPIO_PortSourceGPIOG, GPIO_PinSource8); + + /* Configure EXTI8 line */ + EXTI_InitStructure.EXTI_Line = EXTI_Line8; + EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; + EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; + EXTI_InitStructure.EXTI_LineCmd = ENABLE; + EXTI_Init(&EXTI_InitStructure); + + /* Enable and set EXTI9_5 Interrupt to the lowest priority */ + NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + + NVIC_Init(&NVIC_InitStructure); +#else + /* Enable GPIOB clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); + + /* Configure PB.09 pin as input floating */ + GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; + GPIO_Init(GPIOB, &GPIO_InitStructure); + + /* Enable AFIO clock */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); + /* Connect EXTI9 Line to PB.09 pin */ + GPIO_EXTILineConfig(GPIO_PortSourceGPIOB, GPIO_PinSource9); + + /* Configure EXTI9 line */ + EXTI_InitStructure.EXTI_Line = EXTI_Line9; + EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; + EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; + EXTI_InitStructure.EXTI_LineCmd = ENABLE; + EXTI_Init(&EXTI_InitStructure); + + /* Enable and set EXTI9_5 Interrupt to the lowest priority */ + NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + + NVIC_Init(&NVIC_InitStructure); +#endif +} + +#ifdef USE_FULL_ASSERT + +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t* file, uint32_t line) +{ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + + /* Infinite loop */ + while (1) + { + } +} + +#endif + +/** + * @} + */ + +/** + * @} + */ + +/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/ |