JG_TpsLabStudio_LTS/tps/TpsLabStudio/com/SerialPort.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO.Ports;

namespace Tps_LQ_Transmitter.com
{
    class TransmitterSerialPort
    {
        public void DUT_Transmitter_Ctrol(string PORT, byte FreqSelect)
        {
            SerialPort sp = new SerialPort(); //新建一个串口对象
            sp.PortName = PORT;     //端口号设置为com_port的值
            sp.BaudRate = 115200;
            sp.DataBits = 8;
            sp.StopBits = StopBits.One;//停止位设置为com_stop的值
            sp.Parity = Parity.None;//获取奇偶校验选项的值
            sp.ReadTimeout = 1000;    //读取等待时间无限长
            sp.RtsEnable = true;
            try
            {
                sp.Open();  //打开串口
            }
            catch (Exception e2)
            {
                Console.WriteLine("open err:" + e2.Message);
            }
            byte[] JGbuffer = new byte[4];
         
            int offset = 0;
            JGbuffer[offset++] = 0xEB;
            JGbuffer[offset++] = 0x90;
            JGbuffer[offset++] = FreqSelect;//切频点
            JGbuffer[offset++] = 0x55;

            try
            {
                sp.Write(JGbuffer, 0, JGbuffer.Length);
            }
            catch (Exception ex)
            {
                throw new Exception($"write com error msg:{ex.Message}");
            }
            sp.Close();

        }
    }

}