c# – 如何计算校验和

发布时间：2020-12-15 06:18:53 所属栏目：百科来源：网络整理

导读：我正在开发仪器驱动程序,我想知道如何计算帧校验和. 说明： Expressed by characters [0-9] and [A-F]. Characters beginning from the character after [STX] and until [ETB] or [ETX] (including [ETB] or [ETX]) are added in binary. The 2-digit numbe

我正在开发仪器驱动程序,我想知道如何计算帧校验和.

说明：

Expressed by characters [0-9] and [A-F].

Characters beginning from the character after [STX] and until [ETB] or
[ETX] (including [ETB] or [ETX]) are added in binary.

The 2-digit numbers,which represent the least significant 8 bits in
hexadecimal code,are converted to ASCII characters [0-9] and [A-F].

The most significant digit is stored in CHK1 and the least significant
digit in CHK2.

我没有超过第三和第四点.

可以为c#提供示例代码.

请帮帮我.

解决方法

最后我得到答案,这里是计算校验和的代码：

private string CalculateChecksum(string dataToCalculate)
{
    byte[] byteToCalculate = Encoding.ASCII.GetBytes(dataToCalculate);
    int checksum = 0;
    foreach (byte chData in byteToCalculate)
    {
        checksum += chData;
    }
    checksum &= 0xff;
    return checksum.ToString("X2");
}

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!