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#include "main.h"
#include "stm32f1xx_hal.h"
#include "gpio.h"
/* USER CODE BEGIN Includes */
#define KEY1_PRES 1
#define KEY2_PRES 2
#define KEY3_PRES 3
#define KEY4_PRES 4
#define KEY1 HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_3)
#define KEY2 HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_4)
#define KEY3 HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_5)
#define KEY4 HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_6)
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
uint8_t KEY_Scan(uint8_t mode);
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
uint8_t i;
/* 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 */
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
/* 按1亮一個燈，按二亮兩個燈，抬手熄滅 */
i=KEY_Scan(1);
switch(i)
{
case 0:
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_1,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_2,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_3,GPIO_PIN_SET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_4,GPIO_PIN_SET);
//HAL_Delay(500);
break;
case 1:
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_1,GPIO_PIN_RESET);
//HAL_Delay(500);
break;
case 2:
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_1,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_2,GPIO_PIN_RESET);
//HAL_Delay(500);
break;
case 3:
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_1,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_2,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_3,GPIO_PIN_RESET);
//HAL_Delay(500);
break;
case 4:
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_1,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_2,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_3,GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA,GPIO_PIN_4,GPIO_PIN_RESET);
//HAL_Delay(500);
break;
default:HAL_Delay(10);
}
}
/* 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_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();
}
/**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();
}
/**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);
}
/* USER CODE BEGIN 4 */
uint8_t KEY_Scan(uint8_t mode)
{
static uint8_t key_up=1; //按鍵松開標志
if(mode) key_up=1; //支持連按
if(key_up&&(KEY1==1||KEY2==1||KEY3==1||KEY4==1))
{
HAL_Delay(10); //去抖動
key_up=0;
if(KEY1==1)return KEY1_PRES;
else if(KEY2==1)return KEY2_PRES;
else if(KEY3==1)return KEY3_PRES;
else if(KEY4==1)return KEY4_PRES;
}else if(KEY1==0&&KEY2==0&&KEY3==0&&KEY4==0)key_up=1;
return 0;// 無按鍵按下
}
/* 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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