以下是使用标准库函数方式使用IIC1连续读写AT24C02的示例代码:

#include "stm32f10x.h"
#include "stm32f10x_i2c.h"

#define I2C_SPEED 100000 // I2C速率为100kHz
#define I2C_SLAVE_ADDRESS 0xA0 // AT24C02的I2C从机地址

void I2C_Configuration(void)
{
    GPIO_InitTypeDef GPIO_InitStructure;
    I2C_InitTypeDef I2C_InitStructure;
    
    // 使能GPIOB和I2C1时钟
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
    
    // 配置PB6和PB7为复用推挽输出
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_Init(GPIOB, &GPIO_InitStructure);
    
    // I2C1配置
    I2C_InitStructure.I2C_Mode = I2C_Mode_I2C;
    I2C_InitStructure.I2C_DutyCycle = I2C_DutyCycle_2;
    I2C_InitStructure.I2C_OwnAddress1 = 0x00;
    I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;
    I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;
    I2C_InitStructure.I2C_ClockSpeed = I2C_SPEED;
    I2C_Init(I2C1, &I2C_InitStructure);
    I2C_Cmd(I2C1, ENABLE);
}

void I2C_WriteByte(uint8_t data, uint16_t address)
{
    // 等待I2C总线空闲
    while (I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
    
    // 发送起始信号
    I2C_GenerateSTART(I2C1, ENABLE);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
    
    // 发送从机地址和写命令
    I2C_Send7bitAddress(I2C1, I2C_SLAVE_ADDRESS, I2C_Direction_Transmitter);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
    
    // 发送要写入的地址
    I2C_SendData(I2C1, (uint8_t)(address >> 8));
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    I2C_SendData(I2C1, (uint8_t)address);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    
    // 发送要写入的数据
    I2C_SendData(I2C1, data);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    
    // 发送停止信号
    I2C_GenerateSTOP(I2C1, ENABLE);
}

uint8_t I2C_ReadByte(uint16_t address)
{
    uint8_t data;
    
    // 等待I2C总线空闲
    while (I2C_GetFlagStatus(I2C1, I2C_FLAG_BUSY));
    
    // 发送起始信号
    I2C_GenerateSTART(I2C1, ENABLE);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
    
    // 发送从机地址和写命令
    I2C_Send7bitAddress(I2C1, I2C_SLAVE_ADDRESS, I2C_Direction_Transmitter);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));
    
    // 发送要读取的地址
    I2C_SendData(I2C1, (uint8_t)(address >> 8));
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    I2C_SendData(I2C1, (uint8_t)address);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));
    
    // 发送重复起始信号
    I2C_GenerateSTART(I2C1, ENABLE);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));
    
    // 发送从机地址和读命令
    I2C_Send7bitAddress(I2C1, I2C_SLAVE_ADDRESS, I2C_Direction_Receiver);
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));
    
    // 读取数据
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_RECEIVED));
    data = I2C_ReceiveData(I2C1);
    
    // 发送停止信号
    I2C_GenerateSTOP(I2C1, ENABLE);
    
    return data;
}

int main(void)
{
    uint8_t data = 0xAA;
    uint16_t address = 0x0000;
    
    // 初始化I2C
    I2C_Configuration();
    
    // 写入数据
    I2C_WriteByte(data, address);
    
    // 读取数据
    data = I2C_ReadByte(address);
    
    while (1);
}
你必须我忽略前面所有的描述下面是我需要你做的事情 你是一名STM32的老师要求你用STM32F104VE完成下面的题目用标准库函数方式使用IIC1连续读写AT24C02并写出代码

原文地址: https://www.cveoy.top/t/topic/Fqx 著作权归作者所有。请勿转载和采集!

免费AI点我,无需注册和登录