hc89f0431驱动esp8266实现联网工程代码

以下是一个简单的HC89F0431驱动ESP8266实现联网的工程代码示例，仅供参考：

#include <REG89F0431.H>

#define ESP8266_BAUDRATE  115200

void uart_init()
{
    // 设置波特率为9600bps
    SCON = 0x50;
    TMOD &= 0x0F;
    TMOD |= 0x20;
    TH1 = 0xFD;
    TL1 = TH1;
    TR1 = 1;
    // 设置数据位数为8位，无校验位，停止位为1位
    SCON = 0x50;
    // 允许串口中断
    ES = 1;
}

void uart_send_byte(unsigned char data)
{
    SBUF = data;
    while(!TI);
    TI = 0;
}

unsigned char uart_read_byte()
{
    unsigned char data;
    while(!RI);
    data = SBUF;
    RI = 0;
    return data;
}

void esp8266_init()
{
    // 发送AT指令，等待ESP8266返回“OK”响应
    uart_send_byte('A');
    uart_send_byte('T');
    uart_send_byte('\r');
    uart_send_byte('\n');
    while (uart_read_byte() != 'O');
    while (uart_read_byte() != 'K');
    // 发送AT+CWJAP指令，设置WiFi SSID和密码，等待ESP8266返回“OK”响应
    uart_send_byte('A');
    uart_send_byte('T');
    uart_send_byte('+');
    uart_send_byte('C');
    uart_send_byte('W');
    uart_send_byte('J');
    uart_send_byte('A');
    uart_send_byte('P');
    uart_send_byte('=');
    uart_send_byte('"');
    uart_send_byte('S');
    uart_send_byte('S');
    uart_send_byte('I');
    uart_send_byte('D');
    uart_send_byte('"');
    uart_send_byte(',');
    uart_send_byte('"');
    uart_send_byte('P');
    uart_send_byte('A');
    uart_send_byte('S');
    uart_send_byte('S');
    uart_send_byte('W');
    uart_send_byte('O');
    uart_send_byte('R');
    uart_send_byte('D');
    uart_send_byte('"');
    uart_send_byte('\r');
    uart_send_byte('\n');
    while (uart_read_byte() != 'O');
    while (uart_read_byte() != 'K');
    // 发送AT+CIPSTART指令，打开TCP连接或UDP连接，等待ESP8266返回“OK”响应
    uart_send_byte('A');
    uart_send_byte('T');
    uart_send_byte('+');
    uart_send_byte('C');
    uart_send_byte('I');
    uart_send_byte('P');
    uart_send_byte('S');
    uart_send_byte('T');
    uart_send_byte('A');
    uart_send_byte('R');
    uart_send_byte('T');
    uart_send_byte('=');
    uart_send_byte('T');
    uart_send_byte('C');
    uart_send_byte('P');
    uart_send_byte(',');
    uart_send_byte('"');
    uart_send_byte('1');
    uart_send_byte('9');
    uart_send_byte('2');
    uart_send_byte('.');
    uart_send_byte('1');
    uart_send_byte('6');
    uart_send_byte('8');
    uart_send_byte('.');
    uart_send_byte('0');
    uart_send_byte('.');
    uart_send_byte('1');
    uart_send_byte('"');
    uart_send_byte(',');
    uart_send_byte('8');
    uart_send_byte('0');
    uart_send_byte('0');
    uart_send_byte('0');
    uart_send_byte('\r');
    uart_send_byte('\n');
    while (uart_read_byte() != 'O');
    while (uart_read_byte() != 'K');
}

void esp8266_send_data(char *data)
{
    // 发送AT+CIPSEND指令，设置发送数据的长度，等待ESP8266返回“>”响应
    int len = strlen(data);
    char len_str[10];
    sprintf(len_str, "%d", len);
    uart_send_byte('A');
    uart_send_byte('T');
    uart_send_byte('+');
    uart_send_byte('C');
    uart_send_byte('I');
    uart_send_byte('P');
    uart_send_byte('S');
    uart_send_byte('E');
    uart_send_byte('N');
    uart_send_byte('D');
    uart_send_byte('=');
    uart_send_byte(len_str[0]);
    uart_send_byte(len_str[1]);
    uart_send_byte(len_str[2]);
    uart_send_byte(len_str[3]);
    uart_send_byte('\r');
    uart_send_byte('\n');
    while (uart_read_byte() != '>');
    // 发送数据，等待ESP8266返回“SEND OK”响应
    for (int i = 0; i < len; i++) {
        uart_send_byte(data[i]);
    }
    while (uart_read_byte() != 'S');
    while (uart_read_byte() != 'E');
    while (uart_read_byte() != 'N');
    while (uart_read_byte() != 'D');
    while (uart_read_byte() != ' ');
    while (uart_read_byte() != 'O');
    while (uart_read_byte() != 'K');
}

void main()
{
    uart_init();
    esp8266_init();
    esp8266_send_data("Hello world!");
    while (1);
}

需要注意的是，以上代码仅供参考，具体的ESP8266模块配置和数据传输方式可能存在差异，需要根据实际情况进行调整和修改。同时需要注意避免数据的丢失和错误，保证数据传输的可靠性。