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Diffstat (limited to 'tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/NVIC/IRQ_Mask/main.c')
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diff --git a/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/NVIC/IRQ_Mask/main.c b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/NVIC/IRQ_Mask/main.c new file mode 100644 index 0000000..faa11de --- /dev/null +++ b/tmp/STM32F10x_StdPeriph_Lib_V3.5.0/Project/STM32F10x_StdPeriph_Examples/NVIC/IRQ_Mask/main.c @@ -0,0 +1,219 @@ +/** + ****************************************************************************** + * @file NVIC/IRQ_Mask/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 IRQ_Mask + * @{ + */ + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +/* Private function prototypes -----------------------------------------------*/ +void TIM_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 Leds mounted on STM3210X-EVAL board */ + STM_EVAL_LEDInit(LED1); + STM_EVAL_LEDInit(LED2); + STM_EVAL_LEDInit(LED3); + STM_EVAL_LEDInit(LED4); + + /* Initialize the KEY and WAKEUP buttons mounted on STM3210X-EVAL board */ + STM_EVAL_PBInit(BUTTON_KEY, BUTTON_MODE_GPIO); + STM_EVAL_PBInit(BUTTON_WAKEUP, BUTTON_MODE_EXTI); + + /* TIM configuration -------------------------------------------------------*/ + TIM_Config(); + + while (1) + { + /* Wait until KEY button is pressed. */ + while(STM_EVAL_PBGetState(BUTTON_KEY) == RESET) + { + } + while(STM_EVAL_PBGetState(BUTTON_KEY) != RESET) + { + } + + /* This instruction raises the execution priority to 0. This prevents all + exceptions with configurable priority from activating, other than through + the HardFault fault escalation mechanism. */ + __disable_irq(); + + /* Turn LED4 ON */ + STM_EVAL_LEDOn(LED4); + + /* Wait until KEY button is pressed. */ + while(STM_EVAL_PBGetState(BUTTON_KEY) == RESET) + { + } + while(STM_EVAL_PBGetState(BUTTON_KEY) != RESET) + { + } + + /* This instruction will allow all exceptions with configurable priority to + be activated. */ + __enable_irq(); + + /* Turn LED4 OFF */ + STM_EVAL_LEDOff(LED4); + } +} + +/** + * @brief Configures the used Timers. + * @param None + * @retval None + */ +void TIM_Config(void) +{ + TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; + TIM_OCInitTypeDef TIM_OCInitStructure; + NVIC_InitTypeDef NVIC_InitStructure; + + /* Enable TIM2, TIM3 and TIM4 clocks */ + RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | + RCC_APB1Periph_TIM4, ENABLE); + + /* TIM2 configuration */ + TIM_TimeBaseStructure.TIM_Period = 0x4AF; + TIM_TimeBaseStructure.TIM_Prescaler = ((SystemCoreClock/1200) - 1); + TIM_TimeBaseStructure.TIM_ClockDivision = 0x0; + TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; + TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); + TIM_OCStructInit(&TIM_OCInitStructure); + + /* Output Compare Timing Mode configuration: Channel1 */ + TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing; + TIM_OCInitStructure.TIM_Pulse = 0x0; + TIM_OC1Init(TIM2, &TIM_OCInitStructure); + + /* TIM3 configuration */ + TIM_TimeBaseStructure.TIM_Period = 0x95F; + TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); + + /* Output Compare Timing Mode configuration: Channel1 */ + TIM_OC1Init(TIM3, &TIM_OCInitStructure); + + /* TIM4 configuration */ + TIM_TimeBaseStructure.TIM_Period = 0xE0F; + TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); + + /* Output Compare Timing Mode configuration: Channel1 */ + TIM_OC1Init(TIM4, &TIM_OCInitStructure); + + /* Immediate load of TIM2,TIM3 and TIM4 Precaler values */ + TIM_PrescalerConfig(TIM2, ((SystemCoreClock/1200) - 1), TIM_PSCReloadMode_Immediate); + TIM_PrescalerConfig(TIM3, ((SystemCoreClock/1200) - 1), TIM_PSCReloadMode_Immediate); + TIM_PrescalerConfig(TIM4, ((SystemCoreClock/1200) - 1), TIM_PSCReloadMode_Immediate); + + /* Clear TIM2, TIM3 and TIM4 update pending flags */ + TIM_ClearFlag(TIM2, TIM_FLAG_Update); + TIM_ClearFlag(TIM3, TIM_FLAG_Update); + TIM_ClearFlag(TIM4, TIM_FLAG_Update); + + /* Configure two bits for preemption priority */ + NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); + + /* Enable the TIM2 Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); + + /* Enable the TIM3 Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; + NVIC_Init(&NVIC_InitStructure); + + /* Enable the TIM4 Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; + NVIC_Init(&NVIC_InitStructure); + + /* Enable TIM2, TIM3 and TIM4 Update interrupts */ + TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE); + TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE); + TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE); + + /* TIM2, TIM3 and TIM4 enable counters */ + TIM_Cmd(TIM2, ENABLE); + TIM_Cmd(TIM3, ENABLE); + TIM_Cmd(TIM4, ENABLE); +} + + +#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****/ |