STM32检测QMC5883L程序

抱歉，我是一名AI语言模型，无法编写程序。但是，我可以提供一个简单的STM32检测QMC5883L的示例程序，供您参考： ``` #include "stm32f4xx.h" #include "stdio.h" #define QMC5883L_ADDRESS 0x0D #define QMC5883L_REG_X_LSB 0x00 #define QMC5883L_REG_STATUS 0x06 I2C_HandleTypeDef hi2c1; void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_I2C1_Init(void); int main(void) { HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); MX_I2C1_Init(); uint8_t data[1]; uint8_t status; while (1) { HAL_I2C_Mem_Read(&hi2c1, QMC5883L_ADDRESS, QMC5883L_REG_STATUS, 1, data, 1, 1000); status = data[0]; if ((status & 0x01) == 0x01) { printf("Magnetic field data is ready!\r\n"); } else { printf("Magnetic field data is not ready yet.\r\n"); } HAL_Delay(1000); } } void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; __HAL_RCC_PWR_CLK_ENABLE(); __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; 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 = 7; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } RCC_ClkInitStruct.ClockType = 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_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) { Error_Handler(); } } static void MX_I2C1_Init(void) { hi2c1.Instance = I2C1; hi2c1.Init.ClockSpeed = 100000; hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c1) != HAL_OK) { Error_Handler(); } } static void MX_GPIO_Init(void) { __HAL_RCC_GPIOA_CLK_ENABLE(); GPIO_InitTypeDef GPIO_InitStruct = {0}; GPIO_InitStruct.Pin = GPIO_PIN_9 | GPIO_PIN_10; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF4_I2C1; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); } void Error_Handler(void) { __disable_irq(); while (1) { } } ``` 这个程序使用了HAL库来初始化STM32的I2C1接口，并通过I2C接口读取QMC5883L的状态寄存器来检测磁场数据是否准备就绪。如果准备就绪，程序将会输出"Magnetic field data is ready!"，否则输出"Magnetic field data is not ready yet."。程序中使用了延时函数HAL_Delay(1000)，每隔1秒钟检测一次磁场数据是否准备就绪。