FunctionalState I2C_WriteByte(uint8_t SendByte, uint16_t WriteAddress, uint8_t DeviceAddress);

根据提供的引用内容，无法确定是否存在函数签名为"FunctionalState I2C_WriteByte(uint8_t SendByte, uint16_t WriteAddress, uint8_t DeviceAddress)"的函数。引用、、中提供了两个函数，一个是进行IIC写操作的函数I2C_WriteByte(uint8_t addr,uint8_t data)，另一个是进行IIC读操作的函数I2C_ReadByte(uint8_t addr)。这两个函数的参数和返回值与所提供的函数签名不完全一致。因此，需要更多的信息才能回答这个问题。请提供更多的上下文信息或者代码片段。

相关问题

I2C通信协议的读写操作

### I2C通信协议的读写操作

#### 一、I2C总线简介
I2C（Inter-Integrated Circuit）是一种简单、双向二线制同步串行总线，它只需要两根线即可在组件之间传输信息。这两条信号线分别是SDA（Serial Data Line，数据线）和SCL（Serial Clock Line，时钟线）。设备通过发送起始条件、地址、读/写位以及停止条件来完成一次完整的通讯过程[^1]。

#### 二、I2C写入操作流程
当主机向从机发送数据时执行的是写入操作：

1. 主控器发出起始信号；
2. 发送7位或10位从器件地址加上一位方向控制位（R/W），其中'0'表示写模式；此时如果存在多个相同ID号的目标芯片，则由硬件电路决定哪个作为响应者；
3. 若目标节点接收到自己的有效地址则返回ACK确认信号给主站；
4. 开始传送实际的数据字节序列，在每一个新的byte之前都需要再次拉低SCL并保持一段时间直到下一个bit被采样为止；
5. 当所有预期要传递的信息都完成后，最后释放掉线路进入高阻态，并给出STOP标志结束本次会话。

void I2C_WriteByte(uint8_t deviceAddress, uint8_t registerAddress, uint8_t data){
    // Start condition
    I2C_Start();
    
    // Send the address of the slave with write bit set to '0'
    I2C_SendByte(deviceAddress << 1);
    I2C_WaitForAck(); 

    // Send the internal register address where you want to write
    I2C_SendByte(registerAddress);
    I2C_WaitForAck();

    // Write actual byte value into specified location within the chip
    I2C_SendByte(data);
    I2C_WaitForAck();

    // Stop Condition
    I2C_Stop();
}

#### 三、I2C读取操作流程
对于读取来说，基本步骤如下所示：

1. 启动事务处理并通过指定目的端口发起寻址请求；
2. 如果是从寄存器中获取特定位置的内容，则还需要额外告知对方具体偏移量；
3. 接着切换到读状态——即把先前提到的方向指示符置为‘1’;
4. 对方回应后便可以逐个收取所需长度的消息体了；
5. 每次接收完一个新来的字符都要给予相应的反馈（NACK/Acknowledge）直至最后一项才停发应答脉冲；
6. 结束整个交互周期前需生成终止码。

uint8_t I2C_ReadByte(uint8_t deviceAddress,uint8_t registerAddress,bool lastRead){
    uint8_t readData;

    // Start condition
    I2C_Start();
    
    // Send the address of the slave with write bit set to '0'
    I2C_SendByte((deviceAddress << 1)|0x00);  
    I2C_WaitForAck();

    // Send the internal register address from which we wish to start reading
    I2C_SendByte(registerAddress);
    I2C_WaitForAck();

    // Repeated START and send the same address but this time R/W=1 indicating READ mode.
    I2C_RepeatedStart();
    I2C_SendByte(((deviceAddress<<1)|0x01));
    I2C_WaitForAck();

    // Read one byte without acknowledging it if its not the final byte or acknowledge otherwise
    readData = I2C_ReceiveByte(lastRead ? NACK : ACK);

    // Generate STOP condition after receiving all bytes
    I2C_Stop();

    return readData;   
}

写一段I2C通讯的程序

好的，以下是一个简单的I2C通讯程序示例，使用STM32F103C8T6作为主控芯片，连接一个EEPROM芯片进行读写操作：

#include "stm32f10x.h"

#define I2C_SPEED               100000
#define I2C_EEPROM_ADDR         0xA0

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

    // Enable GPIOB clock
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

    // Configure PB6 and PB7 as open-drain output
    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);

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

    // Configure I2C1 parameters
    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 = I2C_SPEED;
    I2C_Init(I2C1, &I2C_InitStructure);

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

void I2C_EEPROM_WriteByte(uint16_t WriteAddr, uint8_t Data)
{
    uint8_t TxBuffer[2];

    // Build Tx buffer
    TxBuffer[0] = WriteAddr >> 8;
    TxBuffer[1] = WriteAddr & 0xFF;
    TxBuffer[2] = Data;

    // Send start condition
    I2C_GenerateSTART(I2C1, ENABLE);

    // Wait until start condition is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));

    // Send EEPROM address (write mode)
    I2C_Send7bitAddress(I2C1, I2C_EEPROM_ADDR, I2C_Direction_Transmitter);

    // Wait until EEPROM address is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));

    // Send data
    I2C_SendData(I2C1, TxBuffer[0]);

    // Wait until data is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

    I2C_SendData(I2C1, TxBuffer[1]);

    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

    I2C_SendData(I2C1, TxBuffer[2]);

    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

    // Send stop condition
    I2C_GenerateSTOP(I2C1, ENABLE);
}

uint8_t I2C_EEPROM_ReadByte(uint16_t ReadAddr)
{
    uint8_t RxBuffer[2];

    // Build Tx buffer
    TxBuffer[0] = ReadAddr >> 8;
    TxBuffer[1] = ReadAddr & 0xFF;

    // Send start condition
    I2C_GenerateSTART(I2C1, ENABLE);

    // Wait until start condition is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));

    // Send EEPROM address (write mode)
    I2C_Send7bitAddress(I2C1, I2C_EEPROM_ADDR, I2C_Direction_Transmitter);

    // Wait until EEPROM address is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));

    // Send data
    I2C_SendData(I2C1, TxBuffer[0]);

    // Wait until data is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

    I2C_SendData(I2C1, TxBuffer[1]);

    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

    // Send repeated start condition
    I2C_GenerateSTART(I2C1, ENABLE);

    // Wait until repeated start condition is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_MODE_SELECT));

    // Send EEPROM address (read mode)
    I2C_Send7bitAddress(I2C1, I2C_EEPROM_ADDR, I2C_Direction_Receiver);

    // Wait until EEPROM address is sent
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));

    // Disable ACK
    I2C_AcknowledgeConfig(I2C1, DISABLE);

    // Send stop condition
    I2C_GenerateSTOP(I2C1, ENABLE);

    // Wait until data is received
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_RECEIVED));

    // Read data
    RxBuffer[0] = I2C_ReceiveData(I2C1);

    // Wait until data is received
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_BYTE_RECEIVED));

    RxBuffer[1] = I2C_ReceiveData(I2C1);

    // Wait until stop condition is detected
    while (!I2C_CheckEvent(I2C1, I2C_EVENT_MASTER_STOP_DETECTED));

    // Enable ACK
    I2C_AcknowledgeConfig(I2C1, ENABLE);

    return RxBuffer[1];
}

int main(void)
{
    // Configure I2C
    I2C_Configuration();

    // Write data to EEPROM
    I2C_EEPROM_WriteByte(0x0000, 0xAA);

    // Read data from EEPROM
    uint8_t data = I2C_EEPROM_ReadByte(0x0000);

    while (1);
}

以上代码仅供参考，具体实现需要根据实际情况进行调整和优化。