// 串口停止位设置
private void StopBit_SelectedIndexChanged(object sender, EventArgs e)
{
string statustring = "";
string statustring1 = "停止位 ";
int inputvalue = 0;
int indexid = 0;
if (StopBit.Items != null && StopBit.Items.Count > 0 && StopBit.SelectedItem != null)
{
statustring = StopBit.Text;
}
if (StopBit.Items != null && StopBit.Items.Count > 0 && StopBit.SelectedItem != null)
{
indexid = StopBit.SelectedIndex;
inputvalue = Convert.ToInt32(statustring);
}
if (indexid >= 0)
{
switch (indexid)
{
case 0:
ComClass.StopBits = StopBits.One;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 1:
ComClass.StopBits = StopBits.Two;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
default:
break;
}
}
}
} // 函数
// 选择并打开串口
private void ComSelect_SelectedIndexChanged(object sender, EventArgs e)
{
// search_com(); // 查询COM口并显示
//连接并打开串口；
string comname = " ";
if (ComSelect.Items != null && ComSelect.Items.Count > 0 && ComSelect.SelectedItem != null)
{
comname = ComSelect.SelectedItem.ToString();
}
try
{
if (ComClass.IsOpen)
{
//StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + comname + "打开失败"+ "串口被占用或无效\r\n");
//MessageBox.Show("打开串口" + comname + "失败\r\n");
//ComClass.PortName = "fail";
//return;
ComClass.Close();
}
if (!ComClass.IsOpen) // 串口未打开
{
ComClass.PortName = comname;
ComClass.BaudRate = 115200;
ComClass.DataBits = 8;
ComClass.Parity = Parity.None;
ComClass.StopBits = StopBits.One;
//ComClass.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(ReadDatafromCom);
ComClass.Open();
if (ComClass.IsOpen)
{
BaudRate.Enabled = true; // 使能波特率按钮
BaudRate.SelectedIndex = 6; // 115200
DataBit.Enabled = true; // 使能数据位按钮
DataBit.SelectedIndex = 1; // 输出8位
StopBit.Enabled = true; // 使能停止位按钮
StopBit.SelectedIndex = 0; // 1位停止位
ParityBit.Enabled = true; // 使能奇偶校验按钮
ParityBit.SelectedIndex = 0; // 无奇偶校验
FileSelect.Enabled = true; // 使能固件升级按钮
//shakehand.Enabled = true; // 使能握手按钮
CloseCom.Enabled = true; // 使能串口清除按钮
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "串口" + comname + "连接成功\r\n");
}
}
}
catch
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + comname + "打开失败" + "串口被占用或无效\r\n");
MessageBox.Show("打开串口" + comname + "失败\r\n");
return;
}
}
// 关闭串口
private void CloseCom_Click(object sender, EventArgs e)
{
// 关闭串口
if (CloseCom.Text == "关闭串口")
{
string statustring = "串口并清除其缓存";
if (ComClass.IsOpen)
{
ComClass.DiscardInBuffer(); //清空输入缓存
ComClass.DiscardOutBuffer(); //清空输出缓存
Close_Com();
FileSelect.Enabled = false; // 关闭固件选择按钮
UpGrade.Enabled = false; // 关闭固件升级按钮
CloseCom.Text = "打开串口";
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "关闭" + ComClass.PortName + statustring + "成功\r\n");
}
else
{
CloseCom.Text = "打开串口";
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + ComClass.PortName + "已关闭无法清除缓存\r\n");
}
}
else if (CloseCom.Text == "打开串口")
{
if (ComClass.IsOpen)
{
CloseCom.Text = "关闭串口";
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + ComClass.PortName + "已打开\r\n");
}
else
{
ComClass.Open(); //打开串口
ComClass.DiscardInBuffer(); //清空输入缓存
ComClass.DiscardOutBuffer(); //清空输出缓存
FileSelect.Enabled = true; // 打开固件选择按钮
if (FilePath.TextLength != 0)
{
UpGrade.Enabled = true; // 打开固件升级按钮
}
CloseCom.Text = "关闭串口";
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + ComClass.PortName + "打开成功\r\n");
}
}
}
// 串口数据位设置
private void DataBit_SelectedIndexChanged(object sender, EventArgs e)
{
string statustring = "";
string statustring1 = "数据位 ";
int inputvalue = 0;
int indexid = 0;
if (DataBit.Items != null && DataBit.Items.Count > 0 && DataBit.SelectedItem != null)
{
statustring = DataBit.Text;
}
if (DataBit.Items != null && DataBit.Items.Count > 0 && DataBit.SelectedItem != null)
{
indexid = DataBit.SelectedIndex;
inputvalue = Convert.ToInt32(statustring);
}
if (indexid >= 0)
{
switch (indexid)
{
case 0: // 7位
ComClass.DataBits = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 1: // 8位
ComClass.DataBits = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
//case 2:
// ComClass.DataBits = inputvalue;
// StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
// break;
//case 3:
// ComClass.DataBits = inputvalue;
// StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
// break;
default:
break;
}
}
}
// 串口奇偶校验位设置
private void ParityBit_SelectedIndexChanged(object sender, EventArgs e)
{
string statustring = "";
string statustring1 = "奇偶校验 ";
int indexid = 0;
if (ParityBit.Items != null && ParityBit.Items.Count > 0 && ParityBit.SelectedItem != null)
{
statustring = ParityBit.Text;
}
if (ParityBit.Items != null && ParityBit.Items.Count > 0 && ParityBit.SelectedItem != null)
{
indexid = ParityBit.SelectedIndex;
}
if (indexid >= 0)
{
switch (indexid)
{
case 0:
ComClass.Parity = Parity.None;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 1:
ComClass.Parity = Parity.Odd;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 2:
ComClass.Parity = Parity.Even;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
default:
break;
}
}
}
// 串口波特率设置
private void BaudRate_SelectedIndexChanged(object sender, EventArgs e)
{
string statustring = "";
string statustring1 = "波特率 ";
int inputvalue = 0;
int indexid = 0;
if (BaudRate.Items != null && BaudRate.Items.Count > 0 && BaudRate.SelectedItem != null)
{
statustring = BaudRate.Text;
}
if (BaudRate.Items != null && BaudRate.Items.Count > 0 && BaudRate.SelectedItem != null)
{
indexid = BaudRate.SelectedIndex;
inputvalue = Convert.ToInt32(statustring);
}
if (indexid >= 0)
{
switch (indexid)
{
case 0:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 1:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 2:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 3:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 4:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 5:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 6:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
case 7:
ComClass.BaudRate = inputvalue;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + statustring1 + statustring + " 切换成功\r\n");
break;
default:
break;
}
}
}
private void UpGrade_Click(object sender, EventArgs e)
{
int status = 0;
int transmitedbytes = 0; // 已发送字节
ushort readchecksum = 0;
ushort checksum = 0;
int sectionsize = 0; // 段长度
int sectionbuffer = 0x400 * 2; // 下位机缓存长度单位16位字，需要乘以2
//int codebyteslength = 0;
byte[] codebyte;
//byte[] receivebytes;
byte[] buffer; // 缓存数据
codebyte = ReadCodeASCII(); // 读取代码数据
if ((codebyte[0] != 0xAA) || (codebyte[1] != 0x08)) // 判断代码是否正确
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "读取文件失败\r\n");
return;
}
else // 代码正确往下执行
{
// 先握手
Int16 mainflag = 0; // 是否主界面
//buffer = new byte[6] { 0xAA, 0x01, 0xCC, 0x33, 0xC3, 0x3C }; // 应用程序需要握手才能继续执行
//buffer = comd.DSPShakehand; // 应用程序需要握手才能继续执行
status = SendCodeASCII(comd.DSPShakehand, 0, comd.DSPShakehand.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
return;
}
receivebytes = new byte[13];
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "等待握手...\r\n");
status = ReadDatafromCom(receivebytes);
comd.CMDRev = receivebytes;
if (status == 1)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "下位机无回应\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "握手失败\r\n");
return;
}
else
{
if ((comd.CMDRev[0] == 0xBB) && (comd.CMDRev[2] == 0x01) &&
(comd.CMDRev[3] == 0x00) && (comd.CMDRev[5] == 0x59) &&
(comd.CMDRev[6] == 0x58) && (comd.CMDRev[7] == 0x57) &&
(comd.CMDRev[8] == 0x56) && (comd.CMDRev[9] == 0xCC) &&
(comd.CMDRev[10] == 0x33) && (comd.CMDRev[11] == 0xC3) &&
(comd.CMDRev[12] == 0x3C))
{
if (comd.CMDRev[4] == 0x55) // 主程序返回握手
{
if ((comd.CMDRev[5] == 0x59) && (comd.CMDRev[6] == 0x58) &&
(comd.CMDRev[7] == 0x57) && (comd.CMDRev[8] == 0x56)) // 应用程序握手成功
{
mainflag = 1; // 处于应用程序里面
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序响应,握手成功\r\n");
}
else
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序响应,握手失败\r\n");
return;
}
}
else if (comd.CMDRev[4] == 0xAA) // 升级程序返回
{
if ((comd.CMDRev[5] == 0x59) && (comd.CMDRev[6] == 0x58) &&
(comd.CMDRev[7] == 0x57) && (comd.CMDRev[8] == 0x56)) // 升级程序握手成功
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级程序响应,握手成功\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "准备升级\r\n");
}
else
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级程序响应,握手失败\r\n");
return;
}
}
}
else
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "下位机响应握手返回错误\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "握手失败\r\n");
return;
}
}
// 从应用程序跳转到升级程序 需要发送升级指令
if (mainflag == 1)
{
//buffer = new byte[6] { 0xAA, 0x02, 0xCC, 0x33, 0xC3, 0x3C }; // 发送升级指令
status = SendCodeASCII(comd.DSPUpgrade, 0, comd.DSPUpgrade.Length); // 发送升级指令
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
return;
}
receivebytes = new byte[13];
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "等待握手...\r\n");
status = ReadDatafromCom(receivebytes);
comd.CMDRev = receivebytes;
if (status == 1)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序响应升级指令失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "握手失败\r\n");
return;
}
else // 等待等级指令响应
{
if ((comd.CMDRev[0] == 0xBB) && (comd.CMDRev[2] == 0x01) &&
(comd.CMDRev[3] == 0x00) && (comd.CMDRev[5] == 0x59) &&
(comd.CMDRev[6] == 0x58) && (comd.CMDRev[7] == 0x57) &&
(comd.CMDRev[8] == 0x56) && (comd.CMDRev[9] == 0xCC) &&
(comd.CMDRev[10] == 0x33) && (comd.CMDRev[11] == 0xC3) &&
(comd.CMDRev[12] == 0x3C))
{
switch (comd.CMDRev[4]) // 判断哪个程序响应
{
case 0x01: // 应用程序响应
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序升级跳转成功\r\n");
Thread.Sleep(1000); // 等待1s时间
//StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "握手失败\r\n");
break;
case 0x02: // 应用程序反馈I2C异常
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序反馈I2C异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
}
else
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序响应升级返回错误\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
}
// 跳转完成之后进入升级程序,升级程序需要交互一次
//buffer = new byte[6] { 0xAA, 0x02, 0xCC, 0x33, 0xC3, 0x3C }; // 发送升级指令,应用程序与升级代码返回不同的值
status = SendCodeASCII(comd.DSPUpgrade, 0, comd.DSPUpgrade.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
return;
}
receivebytes = new byte[13];
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "等待握手...\r\n");
status = ReadDatafromCom(receivebytes);
comd.CMDRev = receivebytes;
if (status == 1)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序跳转后无回应\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "握手失败\r\n");
return;
}
else
{
if ((comd.CMDRev[0] == 0xBB) && (comd.CMDRev[2] == 0x01) &&
(comd.CMDRev[3] == 0x00) && (comd.CMDRev[5] == 0x59) &&
(comd.CMDRev[6] == 0x58) && (comd.CMDRev[7] == 0x57) &&
(comd.CMDRev[8] == 0x56) && (comd.CMDRev[9] == 0xCC) &&
(comd.CMDRev[10] == 0x33) && (comd.CMDRev[11] == 0xC3) &&
(comd.CMDRev[12] == 0x3C))
{
switch (comd.CMDRev[4]) // 判断哪个程序响应
{
case 0x01: // 如果主程序继续响应则表明跳转失败
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序跳转失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
case 0x02: // 应用程序反馈I2C异常
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序跳转失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
case 0xAA: // 升级程序响应
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序跳转成功\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级程序握手成功\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "准备升级\r\n");
break;
case 0x04: // 升级程序反馈I2C异常
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级程序反馈I2C异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
}
else
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "应用程序跳转后返回错误\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "握手失败\r\n");
return;
}
}
} // end of if (mainflag == 1)
// 开始标志位
interflag = 0; // 交互结束 代码升级 不需要校验
buffer = new byte[2] {
0xA5, 0x5A
}; // 0xA5是低8位,0x5A是高八位
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
receivebytes = new byte[2];
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "等待开始\r\n");
status = ReadDatafromCom(receivebytes);
if (status == 1)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级程序无回应\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "握手失败\r\n");
return;
}
else
{
if ((receivebytes[0] != buffer[0]) || (receivebytes[1] != buffer[1]))// 通讯异常 下位机先发低八位再发高八位 与上位机一样
{
//checksum = 0; // 出现异常
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级程序通讯异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "开始升级\r\n");
}
}
/*
* while (readflag)
* {
* if (ComClass.BytesToRead >= 2)
* {
* receivebytes = new byte[ComClass.BytesToRead];
* ComClass.Read(receivebytes, 0, ComClass.BytesToRead);
* if ((receivebytes[0] == 0xA5) && (receivebytes[1] == 0x5A))// 通讯成功
* readflag = false;
* else
* {
* StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "通讯异常\r\n");
* return;
* }
* }
* else
* {
* Thread.Sleep(10); // 10ms查询一次
* sleepcount++;
* if (sleepcount > 100) // 超时等待
* {
* StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "下位机无回应\r\n");
* return;
* }
* }
* }
*/
// 通讯正常下
// 关键字发送
buffer = new byte[2];
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
// 二次校验
status = ReadDatafromCom(receivebytes);
if (status == 1)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级程序无回应\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
if ((receivebytes[0] != buffer[0]) || (receivebytes[1] != buffer[1]))// 二次校验失败 下位机先发低八位再发高八位 与上位机一样
{
//checksum = 0; // 出现异常
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "固件代码异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "正在升级...\r\n");
}
}
// 预留字节发送 16字节
buffer = new byte[16];
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
// 函数入口地址发送 22位 4字节
buffer = new byte[4];
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
// 校验checksum
status = ReadDatafromCom(receivebytes);
readchecksum = BitConverter.ToUInt16(receivebytes, 0);
if (checksum != readchecksum)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码传输异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
checksum = 0;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码段传输正常\r\n");
}
while (transmitedbytes < codebyte.Length) // 存在未发送的字节
{
// 段字节数
buffer = new byte[2];
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
sectionsize = 2 * BitConverter.ToInt16(buffer, 0); // 记录长度 以16位字节来计算的，所以需要乘以2 sectionsize表示8位byte个数
if (sectionsize == 0)
{
break;
}
// 段起始地址
buffer = new byte[4];
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
if (sectionsize > sectionbuffer)
{
// 发送整块
for (short j = 0; j < (sectionsize / sectionbuffer); j++) // 分批发放代码段
{
buffer = new byte[sectionbuffer]; // 发送整段缓存长度
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
// 校验checksum
status = ReadDatafromCom(receivebytes);
readchecksum = BitConverter.ToUInt16(receivebytes, 0); // 0索引开始 BitConverter是从receivebytes[0]是低八位,receivebytes[1]是高八位,
if (checksum != readchecksum)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码传输异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
checksum = 0;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码段传输正常\r\n");
}
}// for (short j = 0; j < (sectionsize / sectionbuffer); j++)
//发送剩余的代码
short restcodesize = Convert.ToInt16(sectionsize % sectionbuffer);
buffer = new byte[restcodesize]; // 发送剩余代码长度
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
// 校验checksum
status = ReadDatafromCom(receivebytes);
readchecksum = BitConverter.ToUInt16(receivebytes, 0);
if (checksum != readchecksum)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码传输异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
checksum = 0;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码段传输正常\r\n");
}
}// if (sectionsize > sectionbuffer)
else
{
buffer = new byte[sectionsize]; // 发送全部代码长度
Array.Copy(codebyte, transmitedbytes, buffer, 0, buffer.Length);
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
transmitedbytes = transmitedbytes + buffer.Length;
// 校验checksum
status = ReadDatafromCom(receivebytes);
readchecksum = BitConverter.ToUInt16(receivebytes, 0);
if (checksum != readchecksum)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码传输异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
checksum = 0;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码段传输正常\r\n");
}
} // if (sectionsize > sectionbuffer) else
} // while (transmitedbytes < codebyte.Length) // 存在未发送的字节
checksum = CheckSum(buffer, checksum);
buffer = new byte[2] {
0xA5, 0x5A
}; // 结束标志
status = SendCodeASCII(buffer, 0, buffer.Length);
if (status != 0)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "写入缓存失败\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
checksum = CheckSum(buffer, checksum);
// 校验checksum
status = ReadDatafromCom(receivebytes);
readchecksum = BitConverter.ToUInt16(receivebytes, 0);
if (checksum != readchecksum)
{
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "代码传输异常\r\n");
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级失败\r\n");
return;
}
else
{
checksum = 0;
StatusBar.AppendText(DateTime.Now.ToString("HH:mm:ss ") + "升级完成\r\n");
}
interflag = 1; // 代码升级结束 其它正常交互需要校验
} // 校验代码正确之后,代码往下执行
} // 函数