使用 Go 语言检查 RS232 线路状态

go get github.com/schleibinger/sio

package main

import (
    "fmt"
    "log"

    "github.com/schleibinger/sio"
)

func main() {
    // 定义串口配置
    conf := sio.Config{
        BaudRate:  115200, // 波特率
        Parity:    sio.ParityNone, // 无校验
        DataBits:  8,        // 数据位
        StopBits:  sio.StopBitsOne, // 停止位
    }

    // 打开串口
    port, err := sio.Open("/dev/ttyUSB0", conf) // 替换为你的串口设备名
    if err != nil {
        log.Fatalf("Failed to open serial port: %v", err)
    }
    defer port.Close()

    // 读取 RTS 引脚状态
    rts, err := port.GetRTS()
    if err != nil {
        log.Fatalf("Failed to get RTS state: %v", err)
    }
    fmt.Printf("RTS state: %v\n", rts)

    // 设置 RTS 引脚状态
    err = port.SetRTS(true) // 设置 RTS 为高电平
    if err != nil {
        log.Fatalf("Failed to set RTS state: %v", err)
    }

    // 再次读取 RTS 引脚状态
    rts, err = port.GetRTS()
    if err != nil {
        log.Fatalf("Failed to get RTS state: %v", err)
    }
    fmt.Printf("RTS state after setting: %v\n", rts)

    // 读取 CTS 引脚状态
    cts, err := port.GetCTS()
    if err != nil {
        log.Fatalf("Failed to get CTS state: %v", err)
    }
    fmt.Printf("CTS state: %v\n", cts)

    //读取 DTR 引脚状态
    dtr, err := port.GetDTR()
    if err != nil {
        log.Fatalf("Failed to get DTR state: %v", err)
    }
    fmt.Printf("DTR state: %v\n", dtr)

    //设置 DTR 引脚状态
    err = port.SetDTR(true)
    if err != nil {
        log.Fatalf("Failed to set DTR state: %v", err)
    }

    //再次读取 DTR 引脚状态
    dtr, err = port.GetDTR()
    if err != nil {
        log.Fatalf("Failed to get DTR state: %v", err)
    }
    fmt.Printf("DTR state after setting: %v\n", dtr)

    //读取 DSR 引脚状态
    dsr, err := port.GetDSR()
    if err != nil {
        log.Fatalf("Failed to get DSR state: %v", err)
    }
    fmt.Printf("DSR state: %v\n", dsr)
}