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October 22, 2019 20:45
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Microcontroller Projects
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/**************************************************** | |
Dated: 10 October 2018 | |
Property off: www.microcontroller-project.com | |
Written by : Usman Ali Butt (usa_butt@hotmail.com) | |
****************************************************/ | |
/* Includes ------------------------------------------------------------------*/ | |
#include "main.h" | |
#include "stm32f1xx_hal.h" | |
#include "gpio.h" | |
/* Private function prototypes -----------------------------------------------*/ | |
void SystemClock_Config(void); | |
int main(void) | |
{ | |
/* 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(); | |
while (1) | |
{ | |
if(HAL_GPIO_ReadPin(Push_button_GPIO_Port, Push_button_Pin)==GPIO_PIN_RESET) //Check if Button is Pressed | |
HAL_GPIO_WritePin(Buzzer_GPIO_Port, Buzzer_Pin,GPIO_PIN_SET); //If pressed Ring Buzzer | |
else | |
HAL_GPIO_WritePin(Buzzer_GPIO_Port, Buzzer_Pin,GPIO_PIN_RESET); //Else remain silen | |
} | |
/* USER CODE END 3 */ | |
} | |
void SystemClock_Config(void) | |
{ | |
RCC_OscInitTypeDef RCC_OscInitStruct; | |
RCC_ClkInitTypeDef RCC_ClkInitStruct; | |
/**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_NONE; | |
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) | |
{ | |
_Error_Handler(__FILE__, __LINE__); | |
} | |
/**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_HSI; | |
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; | |
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; | |
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; | |
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK) | |
{ | |
_Error_Handler(__FILE__, __LINE__); | |
} | |
/**Configure the Systick interrupt time | |
*/ | |
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000); | |
/**Configure the Systick | |
*/ | |
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK); | |
/* SysTick_IRQn interrupt configuration */ | |
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0); | |
} | |
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 */ | |
} | |
#ifdef USE_FULL_ASSERT | |
} | |
#endif /* USE_FULL_ASSERT */ | |
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