/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "stm32f1xx_hal.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
static uint8_t fac_us=0;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
void ALIX_Delay_init(void);
void ALIX_Delay_us(uint32_t nus);
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
uint16_t buzzercount = 6;
/* 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();
/* USER CODE BEGIN 2 */
ALIX_Delay_init();
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(902);
}
buzzercount = 200;
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(804);
}
buzzercount = 200;
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(759);
}
buzzercount = 200;
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(716);
}
buzzercount = 200;
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(676);
}
buzzercount = 200;
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(602);
}
buzzercount = 255;
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(519);
}
buzzercount = 255;
while(--buzzercount)
{
HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
ALIX_Delay_us(506);
}
buzzercount = 200;
// for(int i=1500;i>=625;i--)
// {
// while(--buzzercount)
// {
// HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
// ALIX_Delay_us(i);
// }
// buzzercount = 6;
// }
// buzzercount = 300;
// while(--buzzercount)
// {
// HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
// ALIX_Delay_us(625);
// }
// buzzercount = 6;
// for(int i=625;i<=1500;i++)
// {
// while(--buzzercount)
// {
// HAL_GPIO_TogglePin(GPIOC, GPIO_PIN_15);
// ALIX_Delay_us(i);
// }
// buzzercount = 6;
// }
}
/* USER CODE END 3 */
}
/** System Clock Configuration
*/
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_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/**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;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
/**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);
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(buzzer_GPIO_Port, buzzer_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : buzzer_Pin */
GPIO_InitStruct.Pin = buzzer_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(buzzer_GPIO_Port, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
void ALIX_Delay_init()
{
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK_DIV8); //Ñ¡Ôñía2¿ê±Öó HCLK/8
fac_us=SystemCoreClock/8000000; //ÎaÏμí3ê±ÖóμÄ1/8
}
void ALIX_Delay_us(uint32_t nus)
{
uint32_t temp;
SysTick->LOAD=nus*fac_us; //ê±¼ä¼óÔØ
SysTick->VAL=0x00; //Çå¿Õ¼ÆêyÆ÷
SysTick->CTRL|=SysTick_CTRL_ENABLE_Msk ; //¿aê¼μ1êy
do
{
temp=SysTick->CTRL;
}while((temp&0x01)&&!(temp&(1<<16))); //μè′yê±¼äμ½′ï
SysTick->CTRL&=~SysTick_CTRL_ENABLE_Msk; //1رռÆêyÆ÷
SysTick->VAL =0X00; //Çå¿Õ¼ÆêyÆ÷
}
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler */
}
#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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