static unsigned char auchCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81,
0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40
} ;
static unsigned char auchCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4,
0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD,
0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7,
0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE,
0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2,
0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB,
0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, 0x50, 0x90, 0x91,
0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88,
0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80,
0x40
} ;
unsigned short CRC16(unsigned char* puchMsg, unsigned char usDataLen)/* message to calculate CRC upon */
/* quantity of bytes in message */
{
unsigned char uchCRCHi = 0xFF ; /* high byte of CRC initialized */
unsigned char uchCRCLo = 0xFF ; /* low byte of CRC initialized */
unsigned uIndex ; /* will index into CRC lookup table */
while (usDataLen--) /* pass through message buffer */
{
uIndex = uchCRCHi ^ *puchMsg++ ; /* calculate the CRC *///这几条没看明白
uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex];
uchCRCLo = auchCRCLo[uIndex] ;
}
*puchMsg++ = uchCRCHi;
*puchMsg = uchCRCLo;
return (uchCRCHi << 8 | uchCRCLo) ;
}
BOOL CSerialmodbusDlg::OnInitDialog()
{
CDialog::OnInitDialog();
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
m_MSComm.SetCommPort(1);//在设置选项里的port值不能初始时未能传递过来
m_MSComm.SetInputMode(1);
m_MSComm.SetInBufferSize(1024);
m_MSComm.SetOutBufferSize(512);
m_MSComm.SetRThreshold(1);
m_MSComm.SetInputLen(0);
m_MSComm.SetSettings("9600,n,8,1");
if(!m_MSComm.GetPortOpen())
m_MSComm.SetPortOpen(TRUE);
else
MessageBox("打开串口出错");
m_MSComm.GetInput();//先预读以清除残留数据
return TRUE; // return TRUE unless you set the focus to a control
}
void CSerialmodbusDlg::open_serial()
{
if(!m_MSComm.GetPortOpen())
m_MSComm.SetPortOpen(TRUE);//打开串口
//应该还有一些后续的操作情形,暂时留待协议能完成之后再行添加
}
void CSerialmodbusDlg::close_serial()
{
if(m_MSComm.GetPortOpen())
m_MSComm.SetPortOpen(FALSE);
}
BEGIN_EVENTSINK_MAP(CSerialmodbusDlg, CDialog)
//{{AFX_EVENTSINK_MAP(CSerialmodbusDlg)
ON_EVENT(CSerialmodbusDlg, IDC_MSCOMM1, 1 /* OnComm */, OnOnCommMscomm1, VTS_NONE)
//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()
void CSerialmodbusDlg::OnOnCommMscomm1()
{
VARIANT variant_inp;
COleSafeArray safearray_inp;
long length,i;
BYTE data[4096];
unsigned char sendback[8];
CString strtemp;
CString strDisp;
int nEvent=m_MSComm.GetCommEvent();
int k;
switch (nEvent)
//接收缓冲区内有字符
{
case 2:
k=m_MSComm.GetInBufferCount();
if(k>0)
{
variant_inp=m_MSComm.GetInput();//读取缓冲区内的数据
safearray_inp=variant_inp;//将VARIANT型变量转换为ColeSafeArray型变量
length=safearray_inp.GetOneDimSize();//确定数据长度
for(i=0;i<length;i++)
safearray_inp.GetElement(&i,data+i);//将数据转换为BYTE型数组
for(i=0;i<length;i++)
{
BYTE bt=*(char*)(data+i);//字符型
*(sendback+i)=*(char*)(data+i);
strtemp.Format("%02X",bt);//将字符送入临时变量strtemp存放
strDisp+=strtemp;//加入接收编辑框对应字符串
}
int nlen=m_ctrlEditRec.GetWindowTextLength();
m_ctrlEditRec.SetSel(nlen+1,nlen);
m_ctrlEditRec.ReplaceSel(strDisp);
if(strDisp!="ffff")
{
CString str_modbus[11];
for(i=0;i<11;i++)
{
str_modbus[i]=strDisp.Mid(i*2,2);
}
CEdit* pedit=(CEdit*)GetDlgItem(IDC_EDIT_DEVICE);
pedit->SetWindowText(str_modbus[0]);
CEdit* pedit1=(CEdit*)GetDlgItem(IDC_EDIT_FUNCTION);
pedit1->SetWindowText(str_modbus[1]);
CEdit* pedit2=(CEdit*)GetDlgItem(IDC_EDIT_FIRST_ADDRESS);
pedit2->SetWindowText(str_modbus[2]);
CEdit* pedit3=(CEdit*)GetDlgItem(IDC_EDIT_DATA_NUM);
pedit3->SetWindowText(str_modbus[3]+str_modbus[4]+" "+str_modbus[5]+str_modbus[6]+" "+str_modbus[7]+str_modbus[8]);
CEdit* pedit4=(CEdit*)GetDlgItem(IDC_EDIT_CHECK_CRC);
pedit4->SetWindowText(str_modbus[9]+str_modbus[10]);
}
else
{
AfxMessageBox("数据发送有误,请重新发送!");
}
break;
}
}
}
void CSerialmodbusDlg::OnSendButton()
{
// TODO: Add your control notification handler code here
sendbuf();
}
void CSerialmodbusDlg::OnTimer(UINT nIDEvent)
{
// TODO: Add your message handler code here and/or call default
//UpdateData(true);
//sendbuf();
CDialog::OnTimer(nIDEvent);
}
void CSerialmodbusDlg::sendbuf()
{
unsigned char arr_cmd[] = {0x01,0x03,0x00,0x25,0x00,0x03,0xff,0xff};
//arr_cmd[0] = m_nAddress[m_nCurModule-1];
unsigned short CRC = CRC16(arr_cmd,6);
/*arr_cmd[6] = (unsigned char) CRC;
arr_cmd[7]= (unsigned char) (CRC >> 8);*/
CString str_cmd(arr_cmd);
BSTR bstr_cmd ;
bstr_cmd = SysAllocStringByteLen((char*) arr_cmd,8); //分配BSTR资源
TRACE("String len of bstr_cmd =%d\n",SysStringByteLen(bstr_cmd));
VARIANT var;
VariantInit(&var); //初始化VARIANT
var.vt = VT_BSTR;
var.bstrVal = bstr_cmd;//设置BSTR类型和值
m_MSComm.SetNullDiscard(FALSE); //接收时保留NULL字符
CByteArray cba_cmd; //使用CByteArray发送字符(因中有字符NULL-0)
for(int i=0;i<8;i++)
{
cba_cmd.Add(arr_cmd[i]);
}
m_MSComm.SetOutput(COleVariant(cba_cmd));
SysFreeString(bstr_cmd);
}
SLAVE:
static unsigned char auchCRCHi[] = {
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81,
0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
0x40
} ;
static unsigned char auchCRCLo[] = {
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4,
0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD,
0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7,
0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE,
0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2,
0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB,
0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, 0x50, 0x90, 0x91,
0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88,
0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80,
0x40
} ;
unsigned short CRC16(unsigned char* puchMsg, unsigned char usDataLen)/* message to calculate CRC upon */
/* quantity of bytes in message */
{
unsigned char uchCRCHi = 0xFF ; /* high byte of CRC initialized */
unsigned char uchCRCLo = 0xFF ; /* low byte of CRC initialized */
unsigned uIndex ; /* will index into CRC lookup table */
while (usDataLen--) /* pass through message buffer */
{
uIndex = uchCRCHi ^ *puchMsg++ ; /* calculate the CRC *///这几条没看明白
uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex];
uchCRCLo = auchCRCLo[uIndex] ;
}
*puchMsg++ = uchCRCHi;
*puchMsg = uchCRCLo;
return (uchCRCHi << 8 | uchCRCLo) ;
}
BOOL CSerialmodbus2Dlg::OnInitDialog()
{
CDialog::OnInitDialog();
m_MSComm.SetCommPort(2);//在设置选项里的port值不能初始时未能传递过来
m_MSComm.SetInputMode(1);
m_MSComm.SetInBufferSize(1024);
m_MSComm.SetOutBufferSize(512);
m_MSComm.SetRThreshold(1);
m_MSComm.SetInputLen(0);
m_MSComm.SetSettings("9600,n,8,1");
if(!m_MSComm.GetPortOpen())
m_MSComm.SetPortOpen(TRUE);
else
MessageBox("打开串口出错");
m_MSComm.GetInput();//先预读以清除残留数据
return TRUE; // return TRUE unless you set the focus to a control
}
void CSerialmodbus2Dlg::open_serial()
{
if(!m_MSComm.GetPortOpen())
m_MSComm.SetPortOpen(TRUE);//打开串口
//应该还有一些后续的操作情形,暂时留待协议能完成之后再行添加
}
void CSerialmodbus2Dlg::close_serial()
{
if(m_MSComm.GetPortOpen())
m_MSComm.SetPortOpen(FALSE);
}
void CSerialmodbus2Dlg::OnTimer(UINT nIDEvent)
{
// TODO: Add your message handler code here and/or call default
//UpdateData(true);
// Combine(m_device, m_funccode,m_faddress,m_datanum);
CDialog::OnTimer(nIDEvent);
}
BEGIN_EVENTSINK_MAP(CSerialmodbus2Dlg, CDialog)
//{{AFX_EVENTSINK_MAP(CSerialmodbus2Dlg)
ON_EVENT(CSerialmodbus2Dlg, IDC_MSCOMM1, 1 /* OnComm */, OnComm, VTS_NONE)
//}}AFX_EVENTSINK_MAP
END_EVENTSINK_MAP()
void CSerialmodbus2Dlg::OnComm()
{
VARIANT variant_inp;
COleSafeArray safearray_inp;
long length,i;
BYTE data[4096];
unsigned char sendback[100];
CString strtemp;
CString strDisp;
int nEvent=m_MSComm.GetCommEvent();
int k;
switch (nEvent)
//接收缓冲区内有字符
{
case 2:
k=m_MSComm.GetInBufferCount();
if(k>0)
{
variant_inp=m_MSComm.GetInput();//读取缓冲区内的数据
safearray_inp=variant_inp;//将VARIANT型变量转换为ColeSafeArray型变量
length=safearray_inp.GetOneDimSize();//确定数据长度
for(i=0;i<length;i++)
safearray_inp.GetElement(&i,data+i);//将数据转换为BYTE型数组
for(i=0;i<length;i++)
{
BYTE bt=*(char*)(data+i);//字符型
*(sendback+i)=*(char*)(data+i);
strtemp.Format("%02X",bt);//将字符送入临时变量strtemp存放
strDisp+=strtemp;//加入接收编辑框对应字符串
}
CString str_crc;
str_crc.Format("%c%c",sendback[6],sendback[7]);
unsigned short CRC = CRC16(sendback,6);
CString str_check;
str_check.Format("%c%c",sendback[6],sendback[7]);
if(str_check==str_crc)
{
int nlen=m_ctrlEditRec.GetWindowTextLength();
m_ctrlEditRec.SetSel(nlen+1,nlen);
m_ctrlEditRec.ReplaceSel(strDisp);
CString str_modbus[8];
for(i=0;i<8;i++)
{
str_modbus[i]=strDisp.Mid(i*2,2);
}
String2Hex(strDisp,sendback);
unsigned char arr_cmd[] = {sendback[0],sendback[1],0x06,0x08,0x2C,0x08,0x2A,0x08,0x2C,0xff,0xff};
sendbuf(arr_cmd);
/* CByteArray cba_cmd; //使用CByteArray发送字符(因中有字符NULL-0)
for(int i=0;i<11;i++)
{
cba_cmd.Add(arr_cmd[i]);
}
m_MSComm.SetOutput(COleVariant(arr_cmd));*/
CEdit* pedit=(CEdit*)GetDlgItem(IDC_EDIT_DEVICE);
pedit->SetWindowText(str_modbus[0]);
CEdit* pedit1=(CEdit*)GetDlgItem(IDC_EDIT_FUNCTION);
pedit1->SetWindowText(str_modbus[1]);
CEdit* pedit2=(CEdit*)GetDlgItem(IDC_EDIT_FIRST_ADDRESS);
pedit2->SetWindowText(str_modbus[2]+str_modbus[3]);
CEdit* pedit3=(CEdit*)GetDlgItem(IDC_EDIT_DATA_NUM);
pedit3->SetWindowText(str_modbus[4]+str_modbus[5]);
CEdit* pedit4=(CEdit*)GetDlgItem(IDC_EDIT_CHECK_CRC);
pedit4->SetWindowText(str_modbus[6]+str_modbus[7]);
}
else
{
unsigned char arr_cmd[]={0xff,0xff};
CByteArray cba_cmd; //使用CByteArray发送字符(因中有字符NULL-0)
for(int i=0;i<2;i++)
{
cba_cmd.Add(arr_cmd[i]);
}
m_MSComm.SetOutput(COleVariant(cba_cmd));
}
}
break;
}
}
int CSerialmodbus2Dlg::String2Hex(CString str, unsigned char senddata[])
{
int hexdata,lowhexdata;
int hexdatalen=0;
int len=str.GetLength();
//senddata.SetSize(len/2);
for(int i=0;i<len;)
{
char lstr,hstr=str[i];
if(hstr==' ')
{
i++;
continue;
}
i++;
if(i>=len)
break;
lstr=str[i];
hexdata=ConvertHexChar(hstr);
lowhexdata=ConvertHexChar(lstr);
if((hexdata==16)||(lowhexdata==16))
break;
else
hexdata=hexdata*16+lowhexdata;
i++;
senddata[hexdatalen]=(char)hexdata;
hexdatalen++;
}
//senddata.SetSize(hexdatalen);
return hexdatalen;
}
char CSerialmodbus2Dlg::ConvertHexChar(char ch)
{
if((ch>='0')&&(ch<='9'))
return ch-0x30;
else if((ch>='A')&&(ch<='F'))
return ch-'A'+10;
else if((ch>='a')&&(ch<='f'))
return ch-'a'+10;
else return (-1);
}
void CSerialmodbus2Dlg::sendbuf(unsigned char arr_cmd[])
{
//unsigned char arr_cmd[] = {0x01,0x03,0x00,0x25,0x00,0x03,0xff,0xff};
unsigned short CRC = CRC16(arr_cmd,9);
CString str_cmd(arr_cmd);
BSTR bstr_cmd ;
bstr_cmd = SysAllocStringByteLen((char*) arr_cmd,11); //分配BSTR资源
TRACE("String len of bstr_cmd =%d\n",SysStringByteLen(bstr_cmd));
VARIANT var;
VariantInit(&var); //初始化VARIANT
var.vt = VT_BSTR;
var.bstrVal = bstr_cmd;//设置BSTR类型和值
m_MSComm.SetNullDiscard(FALSE); //接收时保留NULL字符
CByteArray cba_cmd; //使用CByteArray发送字符(因中有字符NULL-0)
for(int i=0;i<11;i++)
{
cba_cmd.Add(arr_cmd[i]);
}
m_MSComm.SetOutput(COleVariant(cba_cmd));
SysFreeString(bstr_cmd);
}