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- /*
- void TIM1_UP_IRQHandler(void)
- {
- /* USER CODE BEGIN TIM1_UP_IRQn 0 */
- /* USER CODE END TIM1_UP_IRQn 0 */
- HAL_TIM_IRQHandler(&htim1);
- /* USER CODE BEGIN TIM1_UP_IRQn 1 */
- count++;
- /* USER CODE END TIM1_UP_IRQn 1 */
- }
- /**
- * @brief This function handles TIM2 global interrupt.
- */
- void TIM2_IRQHandler(void)
- {
- /* USER CODE BEGIN TIM2_IRQn 0 */
- HAL_UART_Transmit(&huart2, (uint8_t*) "\r", 1,1000);
- /* USER CODE END TIM2_IRQn 0 */
- HAL_TIM_IRQHandler(&htim2);
- /* USER CODE BEGIN TIM2_IRQn 1 */
- if (count%400 == 0)
- {
- char strSS[20], strMM[20], Output[50]="\0";
- int MM, SS;
- SS = count/1000;
- MM = SS/60;
- SS = SS - (MM*60);
- sprintf(strSS, "%d", SS);
- sprintf(strMM, "%d", MM);
- if (MM<10)
- {
- strcat(Output, "0");
- }
- strcat(Output, strMM);
- strcat(Output, ":");
- if (SS<10)
- {
- strcat(Output, "0");
- }
- strcat(Output, strSS);
- strcat(Output, " ");
- HAL_UART_Transmit(&huart2, (uint8_t*) Output, strlen(Output),1000);
- }
- /* USER CODE END TIM2_IRQn 1 */
- }
- */
- /**
- ******************************************************************************
- * File Name : main.c
- * Description : Main program body
- ******************************************************************************
- *
- * COPYRIGHT(c) 2016 STMicroelectronics
- *
- * 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.
- *
- ******************************************************************************
- */
- /* Includes ------------------------------------------------------------------*/
- #include "stm32f1xx_hal.h"
- /* USER CODE BEGIN Includes */
- #include "string.h"
- /* USER CODE END Includes */
- /* Private variables ---------------------------------------------------------*/
- TIM_HandleTypeDef htim1;
- TIM_HandleTypeDef htim2;
- UART_HandleTypeDef huart2;
- /* USER CODE BEGIN PV */
- /* Private variables ---------------------------------------------------------*/
- uint32_t count;
- /* USER CODE END PV */
- /* Private function prototypes -----------------------------------------------*/
- void SystemClock_Config(void);
- static void MX_GPIO_Init(void);
- static void MX_TIM1_Init(void);
- static void MX_TIM2_Init(void);
- static void MX_USART2_UART_Init(void);
- /* USER CODE BEGIN PFP */
- /* Private function prototypes -----------------------------------------------*/
- void displayNumber(void);
- /* USER CODE END PFP */
- /* USER CODE BEGIN 0 */
- /* USER CODE END 0 */
- int main(void)
- {
- /* USER CODE BEGIN 1 */
- /* USER CODE END 1 */
- /* MCU Configuration----------------------------------------------------------*/
- /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
- HAL_Init();
- /* Configure the system clock */
- SystemClock_Config();
- /* Initialize all configured peripherals */
- MX_GPIO_Init();
- MX_TIM1_Init();
- MX_TIM2_Init();
- MX_USART2_UART_Init();
- /* USER CODE BEGIN 2 */
- HAL_TIM_Base_Start_IT(&htim1);
- HAL_TIM_Base_Start_IT(&htim2);
- /* USER CODE END 2 */
- /* Infinite loop */
- /* USER CODE BEGIN WHILE */
- while (1)
- {
- /* USER CODE END WHILE */
- HAL_Delay(400);
- displayNumber();
- /* USER CODE BEGIN 3 */
- }
- /* USER CODE END 3 */
- }
- /** System Clock Configuration
- */
- void SystemClock_Config(void)
- {
- RCC_OscInitTypeDef RCC_OscInitStruct;
- RCC_ClkInitTypeDef RCC_ClkInitStruct;
- RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
- RCC_OscInitStruct.HSEState = RCC_HSE_ON;
- RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV5;
- RCC_OscInitStruct.Prediv1Source = RCC_PREDIV1_SOURCE_PLL2;
- RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
- RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
- RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
- RCC_OscInitStruct.PLL2.PLL2State = RCC_PLL2_ON;
- RCC_OscInitStruct.PLL2.PLL2MUL = RCC_PLL2_MUL8;
- RCC_OscInitStruct.PLL2.HSEPrediv2Value = RCC_HSE_PREDIV2_DIV5;
- HAL_RCC_OscConfig(&RCC_OscInitStruct);
- RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
- RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
- RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
- RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
- RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
- HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
- HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
- HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
- __HAL_RCC_PLLI2S_ENABLE();
- /* SysTick_IRQn interrupt configuration */
- HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
- }
- /* TIM1 init function */
- void MX_TIM1_Init(void)
- {
- TIM_ClockConfigTypeDef sClockSourceConfig;
- TIM_MasterConfigTypeDef sMasterConfig;
- htim1.Instance = TIM1;
- htim1.Init.Prescaler = 72-1;
- htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
- htim1.Init.Period = 1000-1;
- htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
- htim1.Init.RepetitionCounter = 0;
- HAL_TIM_Base_Init(&htim1);
- sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
- HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig);
- sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
- sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
- HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig);
- }
- /* TIM2 init function */
- void MX_TIM2_Init(void)
- {
- TIM_ClockConfigTypeDef sClockSourceConfig;
- TIM_MasterConfigTypeDef sMasterConfig;
- htim2.Instance = TIM2;
- htim2.Init.Prescaler = 72-1;
- htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
- htim2.Init.Period = 1000-1;
- htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
- HAL_TIM_Base_Init(&htim2);
- sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
- HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig);
- sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
- sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
- HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig);
- }
- /* USART2 init function */
- void MX_USART2_UART_Init(void)
- {
- huart2.Instance = USART2;
- huart2.Init.BaudRate = 115200;
- huart2.Init.WordLength = UART_WORDLENGTH_8B;
- huart2.Init.StopBits = UART_STOPBITS_1;
- huart2.Init.Parity = UART_PARITY_NONE;
- huart2.Init.Mode = UART_MODE_TX_RX;
- huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
- huart2.Init.OverSampling = UART_OVERSAMPLING_16;
- HAL_UART_Init(&huart2);
- }
- /** Configure pins as
- * Analog
- * Input
- * Output
- * EVENT_OUT
- * EXTI
- */
- void MX_GPIO_Init(void)
- {
- /* GPIO Ports Clock Enable */
- __HAL_RCC_GPIOD_CLK_ENABLE();
- }
- /* USER CODE BEGIN 4 */
- void displayNumber() {
- char str[20];
- sprintf(str, "%d", count);
- strcat(str, " ");
- HAL_UART_Transmit(&huart2, (uint8_t*) str, strlen(str),1000);
- }
- /* USER CODE END 4 */
- #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 CODE BEGIN 6 */
- /* 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) */
- /* USER CODE END 6 */
- }
- #endif
- /**
- * @}
- */
- /**
- * @}
- */
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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