#include "visacommonengine.h"
#include <QDebug>
VisaCommonEngine::VisaCommonEngine() : serial(new QSerialPort)
{
}
VisaCommonEngine::~VisaCommonEngine()
{
}
/*VisaCommonEngine::~VisaCommonEngine()
{
closeDevice();
}*/
QStringList VisaCommonEngine::getVisaAddrs()
{
QStringList addrList;
//addrList.append("TCPIP0::10.129.41.111::inst0::INSTR");
//addrList.append("GPIB1::INSTR");
char instrDescriptor[VI_FIND_BUFLEN];
ViUInt32 numInstrs;
ViFindList findList;
status = viOpenDefaultRM(&defaultRM);
if ( status < VI_SUCCESS ) {
qDebug() << "Could not open a session to the VISA Resource Manager!\n";
return addrList;
}
status = viFindRsrc( defaultRM, "?*INSTR", &findList, &numInstrs, instrDescriptor );
if ( status < VI_SUCCESS ) {
qDebug() << "An error occurred while finding resources.";
return addrList;
}
//openDevice("*IDN?")
if ( numInstrs > 0 ) {
addrList.append(instrDescriptor);
}
//status = viOpen( defaultRM, instrDescriptor, VI_NULL, VI_NULL, &instr );
while (--numInstrs ) {
status = viFindNext( findList, instrDescriptor );
if ( status < VI_SUCCESS ) {
qDebug() <<"An error occurred finding the next resource.";
//return status;
}else{
addrList.append(instrDescriptor);
}
//这个时候的instrDescriptor就是你电脑上找到的资源，并且可用，如果为空就说明你的连线有问题
}
//viClose(instr);
//viClose(findList);
viClose(defaultRM);
return addrList;
}
QString VisaCommonEngine::getdeviceIdninfo(QString sAddr)
{
QString info="false";
if(this->openDevice(sAddr,"Visa"))
{
info=this->queryData("*IDN?");
this->closeDevice();
}
return info;
}
QStringList VisaCommonEngine::getSerialAddrs()
{
QStringList addrList;
//addrList.append("COM1");
//addrList.append("COM2");
foreach(const QSerialPortInfo &info, QSerialPortInfo::availablePorts())
{
addrList.append(info.portName());
}
return addrList;
}
bool VisaCommonEngine::getState()
{
return commState;
}
bool VisaCommonEngine::openDevice(QString sAddr,QString sType)
{
if(getState())
{
closeDevice();
}
commType = sType;
if(sType=="Visa" && sAddr!=""){
utf8Bytes = sAddr.toUtf8();
remoteAddr = reinterpret_cast<ViConstRsrc>(utf8Bytes.constData());
status = viOpenDefaultRM(&defaultRM);
if (status < VI_SUCCESS)
{
qDebug() << "Could not open a session to the VISA Resource Manager!\n";
return false;
}
status = viOpen(defaultRM, remoteAddr, VI_NULL, VI_NULL, &instr);
if (status < VI_SUCCESS)
{
qDebug() << "Cannot open a session to the device.\n";
closeDevice();
return false;
}
//viQueryf(instr,"IDN ?\n","%t",buffer);
/*status = viQueryf( instr, "*IDN?\n", "%s", buffer);
if (status < VI_SUCCESS){
qDebug() << "Error reading a response from the device.\n";
}else{
qDebug() << "Data read:" << retCount << QString::fromLocal8Bit((char*)buffer);
//ui->textBrowser->setText(QString::fromLocal8Bit((char*)buffer,retCount));
}*/
/* Set the timeout to 5 seconds (5000 milliseconds). */
status = viSetAttribute(instr, VI_ATTR_TMO_VALUE, 10000);
/* Set the baud rate to 4800 (default is 9600). */
//status = viSetAttribute(instr, VI_ATTR_ASRL_BAUD, 4800);
/* Set the number of data bits contained in each frame (from 5 to 8).
* The data bits for each frame are located in the low-order bits of
* every byte stored in memory.
*/
//status = viSetAttribute(instr, VI_ATTR_ASRL_DATA_BITS, 8);
//status = viSetAttribute(instr, VI_ATTR_ASRL_PARITY, VI_ASRL_PAR_NONE);
//status = viSetAttribute(instr, VI_ATTR_ASRL_STOP_BITS, VI_ASRL_STOP_ONE);
//status = viSetAttribute(instr, VI_ATTR_TERMCHAR_EN, VI_TRUE);
/* Set the termination character to 0xA
*/
status = viSetAttribute(instr, VI_ATTR_TERMCHAR, 0xA);
//strcpy(stringinput, ":MEASure:VOLTage:DC?\n");
//strcpy(stringinput, "*IDN?\n");
//status = viWrite(instr, (ViBuf)stringinput, (ViUInt32)strlen(stringinput), &writeCount);
//if (status < VI_SUCCESS){
// qDebug() << "Error writing to the device.\n";
// goto Close;
//}
//status = viRead(instr, buffer, 100, &retCount);
//if (status < VI_SUCCESS){
// qDebug() << "Error reading a response from the device.\n";
//}else{
// qDebug() << "Data read:" << retCount << QString::fromLocal8Bit((char*)buffer,retCount);
//ui->textBrowser->setText(QString::fromLocal8Bit((char*)buffer,retCount));
//}
commState = true;
return true;
}else{
if(sAddr!=""){
QStringList sList = sAddr.split(";");
if(sList.length()==5){
//设置串口名
serial->setPortName(sList[0]);
//设置波特率
serial->setBaudRate(sList[1].toInt());
//设置奇偶校验
QSerialPort::Parity parity=QSerialPort::NoParity;
if(sList[2]=="None")
parity = QSerialPort::NoParity;
else if(sList[2]=="Odd")
parity = QSerialPort::OddParity;
else if(sList[2]=="Even")
parity = QSerialPort::EvenParity;
serial->setParity(parity);
//设置数据位数
QSerialPort::DataBits bits=QSerialPort::Data7;
if(sList[3]=="7")
bits=QSerialPort::Data7;
else if(sList[3]=="8")
bits=QSerialPort::Data8;
serial->setDataBits(bits);
//设置停止位
QSerialPort::StopBits stop =QSerialPort::OneStop;
if(sList[4]=="None")
stop=QSerialPort::UnknownStopBits;
else if(sList[4]=="One")
stop=QSerialPort::OneStop;
else if(sList[4]=="Two")
stop=QSerialPort::TwoStop;
else if(sList[4]=="OnePointFive")
stop=QSerialPort::OneAndHalfStop;
serial->setStopBits(stop);
//设置流控制
//serial.setFlowControl(QSerialPort::NoFlowControl);
//打开串口
if(serial->open(QIODevice::ReadWrite)){
commState = true;
return true;
}
}
}
}
}
void VisaCommonEngine::closeDevice()
{
if(commType=="Visa"){
status = viClose(instr);
status = viClose(defaultRM);
commState = false;
}else{
serial->close();
commState = false;
}
}
QString VisaCommonEngine::queryData(QString sCmd)
{
if(commType=="Visa"){
BaseCommonApi::SaveLogInfo(1,QString("读取指令：%1").arg(sCmd));
utf8Bytes = (sCmd+"\n").toUtf8();
ViConstRsrc sQuery = reinterpret_cast<ViConstRsrc>(utf8Bytes.constData());
status = viQueryf( instr, sQuery, "%s", buffer);
if (status < VI_SUCCESS){
qDebug() << "Error reading a response from the device.\n";
return "";
}else{
qDebug() << "Data read:" << retCount << QString::fromLocal8Bit((char*)buffer);
return QString::fromLocal8Bit((char*)buffer);
//ui->textBrowser->setText(QString::fromLocal8Bit((char*)buffer,retCount));
}
return "";
}else{
serial->clear();
sendData(sCmd);
QString strRet;
QByteArray buf;
buf = serial->readAll();
if(!buf.isEmpty())
{
strRet=QString::fromLatin1(buf);
}
buf.clear();
return strRet;
}
}
bool VisaCommonEngine::sendData(QString sCmd)
{
QString srr=commType;
//strcpy(stringinput, strData.toLatin1().data());
//strcpy(stringinput, "*IDN?\n");
if(commType=="Visa"){
BaseCommonApi::SaveLogInfo(1,QString("配置指令：%1").arg(sCmd));
utf8Bytes = (sCmd+"\n").toUtf8();
ViBuf buffer = reinterpret_cast<ViBuf>(utf8Bytes.data());
ViUInt32 bufferSize = static_cast<ViUInt32>(utf8Bytes.size());
status = viWrite(instr, buffer, bufferSize, &writeCount);
if (status < VI_SUCCESS){
return false;
}
return true;
}else{
serial->write(sCmd.toLatin1());
return true;
}
}
