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/** | ||
****************************************************************************** | ||
* File Name : main.c | ||
* Description : Main program body | ||
****************************************************************************** | ||
** This notice applies to any and all portions of this file | ||
* that are not between comment pairs USER CODE BEGIN and | ||
* USER CODE END. Other portions of this file, whether | ||
* inserted by the user or by software development tools | ||
* are owned by their respective copyright owners. | ||
* | ||
* COPYRIGHT(c) 2017 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 "main.h" | ||
#include "stm32f4xx_hal.h" | ||
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/* USER CODE BEGIN Includes */ | ||
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/* USER CODE END Includes */ | ||
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/* Private variables ---------------------------------------------------------*/ | ||
UART_HandleTypeDef huart2; | ||
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/* USER CODE BEGIN PV */ | ||
/* Private variables ---------------------------------------------------------*/ | ||
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/* USER CODE END PV */ | ||
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/* Private function prototypes -----------------------------------------------*/ | ||
void SystemClock_Config(void); | ||
static void MX_GPIO_Init(void); | ||
static void MX_USART2_UART_Init(void); | ||
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/* USER CODE BEGIN PFP */ | ||
/* Private function prototypes -----------------------------------------------*/ | ||
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/* USER CODE END PFP */ | ||
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/* USER CODE BEGIN 0 */ | ||
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char userdata[] = "Hello From user Application \r\n"; | ||
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/* USER CODE END 0 */ | ||
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int main(void) | ||
{ | ||
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/* USER CODE BEGIN 1 */ | ||
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/* USER CODE END 1 */ | ||
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/* MCU Configuration----------------------------------------------------------*/ | ||
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */ | ||
HAL_Init(); | ||
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/* USER CODE BEGIN Init */ | ||
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/* USER CODE END Init */ | ||
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/* Configure the system clock */ | ||
SystemClock_Config(); | ||
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/* USER CODE BEGIN SysInit */ | ||
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/* USER CODE END SysInit */ | ||
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/* Initialize all configured peripherals */ | ||
MX_GPIO_Init(); | ||
MX_USART2_UART_Init(); | ||
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/* USER CODE BEGIN 2 */ | ||
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/* USER CODE END 2 */ | ||
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/* Infinite loop */ | ||
/* USER CODE BEGIN WHILE */ | ||
while (1) | ||
{ | ||
/* USER CODE END WHILE */ | ||
HAL_UART_Transmit(&huart2,(uint8_t*)userdata,sizeof(userdata),HAL_MAX_DELAY); | ||
uint32_t current_tick = HAL_GetTick(); | ||
while(HAL_GetTick() <= current_tick +1000); | ||
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/* USER CODE BEGIN 3 */ | ||
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} | ||
/* USER CODE END 3 */ | ||
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} | ||
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/** System Clock Configuration | ||
*/ | ||
void SystemClock_Config(void) | ||
{ | ||
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RCC_OscInitTypeDef RCC_OscInitStruct; | ||
RCC_ClkInitTypeDef RCC_ClkInitStruct; | ||
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/**Configure the main internal regulator output voltage | ||
*/ | ||
__HAL_RCC_PWR_CLK_ENABLE(); | ||
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__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE3); | ||
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/**Initializes the CPU, AHB and APB busses clocks | ||
*/ | ||
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; | ||
RCC_OscInitStruct.HSIState = RCC_HSI_ON; | ||
RCC_OscInitStruct.HSICalibrationValue = 16; | ||
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; | ||
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI; | ||
RCC_OscInitStruct.PLL.PLLM = 16; | ||
RCC_OscInitStruct.PLL.PLLN = 336; | ||
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4; | ||
RCC_OscInitStruct.PLL.PLLQ = 2; | ||
RCC_OscInitStruct.PLL.PLLR = 2; | ||
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) | ||
{ | ||
_Error_Handler(__FILE__, __LINE__); | ||
} | ||
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/**Initializes the CPU, AHB and APB busses clocks | ||
*/ | ||
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK | ||
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; | ||
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; | ||
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; | ||
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; | ||
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; | ||
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) | ||
{ | ||
_Error_Handler(__FILE__, __LINE__); | ||
} | ||
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/**Configure the Systick interrupt time | ||
*/ | ||
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000); | ||
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/**Configure the Systick | ||
*/ | ||
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK); | ||
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/* SysTick_IRQn interrupt configuration */ | ||
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0); | ||
} | ||
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/* USART2 init function */ | ||
static void MX_USART2_UART_Init(void) | ||
{ | ||
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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; | ||
if (HAL_UART_Init(&huart2) != HAL_OK) | ||
{ | ||
_Error_Handler(__FILE__, __LINE__); | ||
} | ||
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} | ||
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/** Configure pins as | ||
* Analog | ||
* Input | ||
* Output | ||
* EVENT_OUT | ||
* EXTI | ||
*/ | ||
static void MX_GPIO_Init(void) | ||
{ | ||
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GPIO_InitTypeDef GPIO_InitStruct; | ||
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/* GPIO Ports Clock Enable */ | ||
__HAL_RCC_GPIOC_CLK_ENABLE(); | ||
__HAL_RCC_GPIOH_CLK_ENABLE(); | ||
__HAL_RCC_GPIOA_CLK_ENABLE(); | ||
__HAL_RCC_GPIOB_CLK_ENABLE(); | ||
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/*Configure GPIO pin Output Level */ | ||
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET); | ||
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/*Configure GPIO pin : B1_Pin */ | ||
GPIO_InitStruct.Pin = B1_Pin; | ||
GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; | ||
GPIO_InitStruct.Pull = GPIO_NOPULL; | ||
HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct); | ||
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/*Configure GPIO pin : LD2_Pin */ | ||
GPIO_InitStruct.Pin = LD2_Pin; | ||
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; | ||
GPIO_InitStruct.Pull = GPIO_NOPULL; | ||
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; | ||
HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct); | ||
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/* EXTI interrupt init*/ | ||
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 0, 0); | ||
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn); | ||
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} | ||
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/* USER CODE BEGIN 4 */ | ||
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/* USER CODE END 4 */ | ||
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/** | ||
* @brief This function is executed in case of error occurrence. | ||
* @param None | ||
* @retval None | ||
*/ | ||
void _Error_Handler(char * file, int line) | ||
{ | ||
/* USER CODE BEGIN Error_Handler_Debug */ | ||
/* User can add his own implementation to report the HAL error return state */ | ||
while(1) | ||
{ | ||
} | ||
/* USER CODE END Error_Handler_Debug */ | ||
} | ||
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#ifdef USE_FULL_ASSERT | ||
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/** | ||
* @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 */ | ||
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} | ||
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#endif | ||
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/** | ||
* @} | ||
*/ | ||
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/** | ||
* @} | ||
*/ | ||
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
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