串口调试：十六进制发送和显示

发送十六进制

        private void btnSend_Click(object sender, EventArgs e)        {            string hexString = tboxSend.Text.Trim();            int len = hexString.Length / 2;                       char[] chars = hexString.ToCharArray();            string[] hexes = new string[len];            byte[] bytes = new byte[len];            for (int i = 0, j = 0; j < len; i = i + 2, j++)            {                hexes[j] = "" + chars[i] + chars[i + 1];                bytes[j] = (byte)(Convert.ToInt16(hexes[j], 16));            }            //port.Write(tboxSend.Text.Trim());            port.Write(bytes, 0, len);        }

接收后显示为十六进制

        private delegate void SafeWinFormsThreadDelegate(string msg);        private void WriteMsg(string msg)        {            SafeWinFormsThreadDelegate d = new SafeWinFormsThreadDelegate(UpdateUI);            Invoke(d, new object[] { msg });        }        private void UpdateUI(string msg)        {            this.tboxRec.Text = msg;        }        private void btnRec_Click(object sender, EventArgs e)        {            port.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);            btnRec.Enabled = false;        }        void port_DataReceived(object sender, SerialDataReceivedEventArgs e)           {               int rsLength = 0;               bool loop=true;                           strBuilder.Remove(0, strBuilder.Length);            while (loop)            {                if (port.BytesToRead == rsLength)                {                    loop = false;                }                else                {                    rsLength = port.BytesToRead;                }                //Thread.Sleep(100);            }            byte[] buf = new byte[rsLength];            port.Read(buf, 0, rsLength);            foreach (byte b in buf)            {                string hex = b.ToString("x").ToUpper();                hex = (hex.Length == 1) ? "0" + hex : hex;                strBuilder.Append(hex + " ");            }            string result = strBuilder.ToString();            WriteMsg(result);           }

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