EEPROM读取操作：使用HAL_I2C_Mem_Read()函数从指定的EEPROM地址读取数据。串口通信：通过HAL_UART_Transmit()函数将读取到的数据发送到上位机，方便调试与验证。代码运行结果程序在运行后会将从EEPROM读取到的数据通过串口输出。我们通过串口调试助手可以看到类似以下输出内容：复制 Read dat
HAL_I2C_Mem_Read(&hi2c2, dev_addr, reg_addr, I2C_MEMADD_SIZE_8BIT, p_data, data_size, 0x100)#definedelay_ms HAL_Delay#defineget_ms(p) do{ *p = HAL_GetTick();}while(0)#definelog_i(...) do {} while (0)#definelog_e(...) do {} while (0)/* labs is already defined ...
HAL_I2C_Mem_Read(&hi2c1, 0xA0, 0x00, I2C_MEMADD_SIZE_8BIT, buffer, 10, 100); 注意:实际使用时应根据具体需求选择方案,对频繁改写的数据建议优先使用外部EEPROM芯片。 EEPROM
HAL_I2C_Mem_Write(&hi2c1, 0x68<<1, 0x1B, I2C_MEMADD_SIZE_8BIT, &gyro_config, 1, 100); 3. 读取传感器数据 // 读取加速度计原始数据 uint8_t accel_data[6]; HAL_I2C_Mem_Read(&hi2c1, 0x68<<1, 0x3B, I2C_MEMADD_SIZE_8BIT, accel_data, 6, 100); // 转换原始数据到实际值(...
MemAddSize: The size of memory address DevAddress:The device 7 bits address value in datasheet must be shifted to the left before calling the interface RETURN VALUES HAL: status FUNCTION NAME HAL_StatusTypeDef HAL_I2C_Mem_Read(I2C_HandleTypeDef * hi2c, uint16_t DevAddress, uint16_t MemAddr...
(H_AT24C02_PAGE_T page, uint8_t*pData, uint8_t len)41{42HAL_StatusTypeDef status =HAL_OK;43uint8_t page_addr =(uint8_t)page;4445H_PARA_ASSERT((pData == NULL) || (len >AT24C02_PAGE_SIZE));4647status = HAL_I2C_Mem_Write(&hi2c1, AT24C02_ADDR, page_addr, I2C_MEMADD_SIZE...
第3步：在main函数里调用用户编写的时钟设置函数我们打开HAL库例程实验1跑马灯实验，看看我们在工程目录...
switch (afnum) { case 1: // Remap SPI1 __HAL_AFIO_REMAP_SPI1_ENABLE(); break; case 2: // Remap I2C1 __HAL_AFIO_REMAP_I2C1_ENABLE(); break; case 3: // Remap USART1 __HAL_AFIO_REMAP_USART1_ENABLE(); break; case 4: // Remap USART2 __HAL_AFIO_REMAP_USART2_ENABLE();...
use stm32f1xx_hal::gpio::{self, OutputSpeed}; // 引脚类型别名配置 type OledWScl = gpio::PB8<gpio::Output<gpio::OpenDrain>>; type OledWSda = gpio::PB9<gpio::Output<gpio::OpenDrain>>; /// I2C 开始 pub fn i2c_start(scl: &mut OledWScl, sda: &mut OledWSda) { sda.set_high(...
AREA STACK, NOINIT, READWRITE, ALIGN=3 ;开辟数据空间，定义属性 Stack_Mem SPACE ...