帮我写stm32f103zet6开发板的iic通信实验

好的，以下是一个基于STM32F103ZET6开发板的I2C通信实验代码示例：

#include "stm32f10x.h"

void I2C_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    I2C_InitTypeDef I2C_InitStructure;
 
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C2, ENABLE);
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_11;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
    GPIO_Init(GPIOB, &GPIO_InitStructure);

    I2C_DeInit(I2C2);
    I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
    I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
    I2C_InitStructure.I2C_OwnAddress1 = 0;
    I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
    I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
    I2C_InitStructure.I2C_ClockSpeed = 400000;
    I2C_Init(I2C2, &I2C_InitStructure);

    I2C_Cmd(I2C2, ENABLE);
}

void I2C_SendByte(uint8_t SlaveAddress, uint8_t RegAddress, uint8_t Data)
{
    while (I2C_GetFlagStatus(I2C2, I2C_FLAG_BUSY));
    I2C_GenerateSTART(I2C2, ENABLE);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
    I2C_Send7bitAddress(I2C2, SlaveAddress, I2C_Direction_Transmitter);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
    I2C_SendData(I2C2, RegAddress);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    I2C_SendData(I2C2, Data);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    I2C_GenerateSTOP(I2C2, ENABLE);
}

uint8_t I2C_ReadByte(uint8_t SlaveAddress, uint8_t RegAddress)
{
    uint8_t data;

    while (I2C_GetFlagStatus(I2C2, I2C_FLAG_BUSY));
    I2C_GenerateSTART(I2C2, ENABLE);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
    I2C_Send7bitAddress(I2C2, SlaveAddress, I2C_Direction_Transmitter);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
    I2C_SendData(I2C2, RegAddress);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    I2C_GenerateSTART(I2C2, ENABLE);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));
    I2C_Send7bitAddress(I2C2, SlaveAddress, I2C_Direction_Receiver);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
    I2C_AcknowledgeConfig(I2C2, DISABLE);
    I2C_GenerateSTOP(I2C2, ENABLE);

    while (I2C_GetFlagStatus(I2C2, I2C_FLAG_RXNE) == RESET);
    data = I2C_ReceiveData(I2C2);

    return data;
}

int main()
{
    uint8_t data;

    // 初始化I2C
    I2C_Configuration();

    // 向从设备地址 0x50 中的寄存器 0x01 写入数据 0x55
    I2C_SendByte(0x50, 0x01, 0x55);

    // 从从设备地址 0x50 中的寄存器 0x02 读取数据
    data = I2C_ReadByte(0x50, 0x02);

    while(1);
}

希望对你有所帮助！