stm32f103标准库硬件iic读写24c32

好的，下面是使用STM32F103标准库进行硬件I2C读写24C32的步骤：

1. 初始化I2C总线

#include "stm32f10x.h"
#include "stm32f10x_i2c.h"
#define I2C_Speed              100000
#define I2C1_SLAVE_ADDRESS7    0xA0

void I2C_Configuration(void)
{
  GPIO_InitTypeDef  GPIO_InitStructure; 
  I2C_InitTypeDef   I2C_InitStructure; 

  /* Enable GPIOB clocks */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

  /* Configure I2C1 pins: SCL and SDA */
  GPIO_InitStructure.GPIO_Pin =  GPIO_Pin_6 | GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
  GPIO_Init(GPIOB, &GPIO_InitStructure);

  /* Enable I2C1 clock */
  RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);

  /* Configure I2C1 */
  I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
  I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
  I2C_InitStructure.I2C_OwnAddress1 = I2C1_SLAVE_ADDRESS7;
  I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
  I2C_InitStructure.I2C_ClockSpeed = I2C_Speed;
  I2C_Init(I2C1, &I2C_InitStructure);

  /* Enable I2C1 */
  I2C_Cmd(I2C1, ENABLE);
}

2. 写数据到24C32

void Write_I2C_24C32(uint8_t *pBuffer, uint16_t WriteAddr, uint16_t NumByteToWrite)
{
  while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
  
  I2C_GenerateSTART(I2C1, ENABLE);
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
  
  I2C_Send7bitAddress(I2C1, I2C1_SLAVE_ADDRESS7, I2C_Direction_Transmitter);
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
  
  I2C_SendData(I2C1, (uint8_t)(WriteAddr >> 8));
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
  
  I2C_SendData(I2C1, (uint8_t)(WriteAddr));
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
  
  while(NumByteToWrite--)
  {
    I2C_SendData(I2C1, *pBuffer++);
    while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
  }
  
  I2C_GenerateSTOP(I2C1, ENABLE);
}

3. 从24C32读取数据

void Read_I2C_24C32(uint8_t *pBuffer, uint16_t ReadAddr, uint16_t NumByteToRead)
{
  while(I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
  
  I2C_GenerateSTART(I2C1, ENABLE);
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
  
  I2C_Send7bitAddress(I2C1, I2C1_SLAVE_ADDRESS7, I2C_Direction_Transmitter);
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
  
  I2C_SendData(I2C1, (uint8_t)(ReadAddr >> 8));
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
  
  I2C_SendData(I2C1, (uint8_t)(ReadAddr));
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
  
  I2C_GenerateSTART(I2C1, ENABLE);
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
  
  I2C_Send7bitAddress(I2C1, I2C1_SLAVE_ADDRESS7, I2C_Direction_Receiver);
  while(!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
  
  while(NumByteToRead)
  {
    if(NumByteToRead == 1)
    {
      I2C_AcknowledgeConfig(I2C1, DISABLE);
      I2C_GenerateSTOP(I2C1, ENABLE);
    }
    
    if(I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_RECEIVED))
    {
      *pBuffer = I2C_ReceiveData(I2C1);
      pBuffer++;
      NumByteToRead--;
    }
  }
  
  I2C_AcknowledgeConfig(I2C1, ENABLE);
}

注意，以上代码仅供参考，具体的读写操作需要根据实际情况进行修改。