串口怎么样收发16进制数据

Question

byte[] buffer = new byte[256]serialport.read(buffer,0,位数)

Answer 1

SerialPort控件  THREAD.SLEEP等待时间  如果要字符串和16进制转化的话：
  public byte[] hexStringToByte(string hex)
        {
            int len = (hex.Length / 2);
            byte[] result = new byte[len];
            for (int i = 0; i < len; i++)
            {
                try { result[i] = Convert.ToByte(hex.Substring(i * 2, 2), 16); }
                catch { result[i] = 0x00; }                          //不能转化的就用0x00表示
            }
            return result;
        }        /// <summary>
        /// byte转化为16进制字符串
        /// </summary>
        /// <param name="bArray"></param>
        /// <returns></returns>
        public string bytesToHexString(byte[] bArray)
        {
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < bArray.Length; i++)
            {
                if (Convert.ToString(bArray[i], 16).Length == 1)
                    sb.Append("0");
                sb.Append(Convert.ToString(bArray[i], 16));
            }
            return sb.ToString();
        }