[经验栈]C#与是德科技信号发生器(Keysight RF Signal Generators)N9310A通信操作 [TOC]1、前言这次使用的仪器是是德科技(keysight)的射频信号发生器，型号为N9310A，来一张正面照。2、C#代码2.1 参考C#与泰克示波器(Tektronix oscilloscope)通信操作中C#代码；2.2 可以用是德科技提供的通信代码；环境：IO 程序库套件项目-引用-添加-程序集-Keysight.Visausing System; using Ivi.Visa; using Keysight.Visa; namespace IdnSample { class IdnSample { static void Main(string[] args) { GpibSession session = new GpibSession ("MyInstr", Ivi.Visa.AccessModes.None, 2000); try { IMessageBasedFormattedIO io = session.FormattedIO; io.PrintfAndFlush("*IDN?");//发送查询设备指令 string[] response = new string[] { "", "", "", "" }; io.Scanf("%,s", out response);//读取信息，以逗号或空格划分字符串 Console.WriteLine("Manufacturer: {0}", response[0]); Console.WriteLine("Instrument Model: {0}", response[1].TrimEnd(new char[] {'\n'})); if (response.Length > 2) { Console.WriteLine("Firmware Revision: {0}", response[2].TrimEnd(new char[] {'\n'})); } if (response.Length > 3) { Console.WriteLine("Serial Number: {0}", response[3].TrimEnd(new char[] {'\n'})); } } catch { Console.WriteLine("*IDN? query failed"); } finally { ession.Dispose(); session = null; } Console.WriteLine("Press any key to end..."); Console.ReadKey(); } } }2.3 使用Ivi.Visa.Interop类；using System; using Ivi.Visa.Interop; namespace HardwareAutomation { public class IviVisaInteropInstrumentsAPIs { FormattedIO488 instrument = new FormattedIO488(); ResourceManager rm = new ResourceManager(); public void Set(string usbAddress, int timeOut) { instrument.IO = (IMessage)rm.Open(usbAddress, AccessMode.NO_LOCK, 0, ""); instrument.IO.TerminationCharacterEnabled = true; instrument.IO.Timeout = timeOut; } public void Write(string WriteStr) { instrument.WriteString(WriteStr, true); } public string Read() { try { return instrument.ReadString(); } catch (Exception e) { //Console.WriteLine(e); //throw; return ""; } } } }3、简单指令:SYSTem:DATE? //查询日期，用于确认信号发生器是否连接正常 :FREQuency:CW 5 MHz //设置频率为5MHz :FREQuency:CW? //查询频率 :AMPLitude:CW 5 dBm //设置幅度为5dbm :RFOutput:STATe ON //打开射频输出 :AM:STATe ON //打开调幅模式 :AM:DEPTh 5 //设置调幅深度 :AM:SOURce EXT //设置调幅源为外部 :MOD:STATe ON //使能设置 :FM:STATe ON //打开调频模式 :FM:DEViation 5 KHz //设置调频偏差为5KHz :FM:SOURce EXT //设置调频源为外部 :MOD:STATe ON //使能设置 :PULM:STATe ON //打开脉冲模式 :PULM:SOURce EXT //设置脉冲源为外部 :MOD:STATe ON //使能设置参考资料N9310A User's GuideKeysight VISA.NET Help(C:\Program Files\ (x86)\Keysight\IO Libraries Suite\VisaNet.chm)

[经验栈]C#与泰克示波器(Tektronix oscilloscope)MSO64通信操作 1、前言此次需要用到工具操作示波器动态配置和检验数据，下面为此次开发的一些总结记录。按理说这里应该用泰克(tektronix)提供的示波器(oscilloscope)驱动和API，但是我没有找到泰克提供的.NET版本的API，我又不是特别熟悉C封装到C#的开发，所以干脆使用了NI-VISA .NET，可能是没有使用到特殊驱动部分，使用并没有出现异常。2、安装环境1、NI-VISA3、C#代码using System; using System.Collections.Generic; using Ivi.Visa; using NationalInstruments.Visa; namespace VisaInstruments { public class NiVisaInstrumentsAPIs { private MessageBasedSession mbSession; private IVisaAsyncResult asyncHandle = null; public void FindResources(string filter) { using (var rm = new ResourceManager()) { try { IEnumerable<string> resources = rm.Find(filter); foreach (string s in resources) { //可以根据ParseResult查询出硬件类型，如Custom，Gpib，Serial，Usb等 //ParseResult parseResult = rm.Parse(s); //HardwareInterfaceType hardwareType = parseResult.InterfaceType; } } catch (Exception ex) { //处理错误 } } } public bool OpenInstrument(string address) { try { using (var rmSession = new ResourceManager()) { mbSession = (MessageBasedSession)rmSession.Open(address); //mbSession.SynchronizeCallbacks = true;使用异步方法需设SynchronizeCallbacks为true return true; } } catch (Exception exp) { return false; } } public void Write(string s) { mbSession.RawIO.Write(ReplaceCommonEscapeSequences(s)); } public string Read() { return InsertCommonEscapeSequences(mbSession.RawIO.ReadString()); } public void WriteAsync(string s) { try { string textToWrite = ReplaceCommonEscapeSequences(s); asyncHandle = mbSession.RawIO.BeginWrite( textToWrite, new VisaAsyncCallback(OnWriteComplete), (object)textToWrite.Length); } catch (Exception exp) { } } private void OnWriteComplete(IVisaAsyncResult result) { try { mbSession.RawIO.EndWrite(result); // "Success"; } catch (Exception exp) { } } public void ReadAsync() { try { asyncHandle = mbSession.RawIO.BeginRead( 1024, new VisaAsyncCallback(OnReadComplete), null); } catch (Exception exp) { } } private void OnReadComplete(IVisaAsyncResult result) { try { string responseString = mbSession.RawIO.EndReadString(result); string info = InsertCommonEscapeSequences(responseString); } catch (Exception exp) { } } public void AbortRW() { try { mbSession.RawIO.AbortAsyncOperation(asyncHandle); } catch (Exception exp) { } } private string ReplaceCommonEscapeSequences(string s) { return (s != null) ? s.Replace("\\n", "\n").Replace("\\r", "\r") : s; } private string InsertCommonEscapeSequences(string s) { return (s != null) ? s.Replace("\n", "\\n").Replace("\r", "\\r") : s; } } }4、实体按钮对应指令重新设置参数 --- *RST 前面板Autoset按钮 ---- AUTOSet EXECute 前面板通道1,2,3,4按钮 --- DISplay:GLObal:CH1:STATE on ACQUIRE:STOPAFTER RUNSTOP 前面板Single/Seq按钮 --- ACQUIRE:STOPAFTER SEQuence 前面板放大镜按钮 --- DISplay:WAVEView1:ZOOM:ZOOM1:STATe ON 前面板Default setup按钮 --- FACtory 需要先执行此条命令解锁命令操作旋钮 HORIZONTAL:DELAY:MODE ON 前面板HORizontal区域position旋钮 -- HORizontal:DELay:TIME 0.3 前面板HORizontal区域scale旋钮 HORIZONTAL:MODE:SCALE 0.5e-3 HORIZONTAL:MODE:SCALE? 前面板vertical区域scale旋钮 CH1:SCAle 100E-2 前面板vertical区域position旋钮 CH2:POSition -2.0 前面板touch off按钮 --- TOUCHSCReen:STATe OFF 前面板trigger区域force按钮 --- TRIGGER FORCE 前面板trigger区域mode按钮 --- TRIGger:A:MODe {AUTO|NORMal} 前面板A,B旋钮 --- TRIGger:{A|B|B:RESET}5、简单测量参数指令//设定读取通道和参数 MEASUREMENT:MEAS1:TYPE AMPLITUDE MEASUREMENT:MEAS1:SOURCE CH1 //读取信息 MEASUREMENT:MEAS1:RESUlts:CURRentacq:MEAN? //删除测试信息 MEASUREMENT:DELETE "MEAS1" //截屏 SAVE:IMAGE "C:/Dut12–tests.png" //可测参数列表 MEASUrement:MEAS<x>:TYPe {ACCOMMONMODE|ACRMS|AMPlITUDE|AREA|BASE|BITAMPLITUDE|BITHIGH|BITLOW|BURSTWIDTH|COMMONMODE|DATARATE|DCD|DDJ|DDRAOS|DDRAOSPERTCK|DDRAOSPERUI|DDRAUS|DDRAUSPERTCK|DDRAUSPERUI|DDRHOLDDIFF|DDRSETUPDIFF|DDRTCHABS|DDRTCHAVERAGE|DDRTCKAVERAGE|DDRTCLABS|DDRTCLAVERAGE|DDRTERRMN|DDRTERRN|DDRTJITCC|DDRTJITDUTY|DDRTJITPER|DDRTPST|DDRTRPRE|DDRTWPRE|DDRVIXAC|DDRTDQSCK|DELAY|DJ|DJDIRAC|DPMOVERSHOOT|DPMUNDERSHOOT|DPMRIPPLE|DPMTURNOFFTIME|DPMTURNONTIME|EYEHIGH|EYELOW|FALLSLEWRATE|FAHIGH|HEIGHT|HEIGHTBER|HIGHTIME|HOLD|JITTERSUMMARY|J2|J9|LOW|LOWTIME|MAXIMUM|MEAN|MINIMUM|NDUtY|NPERIOD|NPJ|NOVERSHOOT|NWIDTH|PDUTTY|PERIOD|PHASE|PHASENOISE|PJ|PK2Pk|POVERSHOOT|PWIDTH|QFACTOR|RISESLEWRATE|RISETIME|RJ|RJDIRAC|RMS|SRJ|SSCFREQDEV|SSCMODRATE|SETUP|SKEW|TIE|TIMEOUTSIDELEVEL|TJBER|TNTRATIO|TOP|UNITINTERVAL|VDIFFXOVR|WIDTH|WIDTHBER|}6、简单的GPIO测试用例//设置垂直刻度为300mv CH1:SCAle 300E-3 //位置为-3div CH1:POSition -3.0 //耦合为DC CH1:COUPLING DC //设置水平刻度为20ms HORIZONTAL:MODE:SCALE 20e-3 //打开采集 ACQUIRE:STATE ON //测量最大电压 MEASUREMENT:MEAS1:TYPE MAXIMUM MEASUREMENT:MEAS1:SOURCE CH1 //测量最小电压 MEASUREMENT:MEAS2:TYPE MINIMUM MEASUREMENT:MEAS2:SOURCE CH1 //测量高值 MEASUREMENT:MEAS3:TYPE TOP MEASUREMENT:MEAS3:SOURCE CH1 //测量低值 MEASUREMENT:MEAS4:TYPE BASE MEASUREMENT:MEAS4:SOURCE CH1 //停止采集 ACQUIRE:STATE OFF //设置标签 CH1:LABEL:NAME "GPIO1HIGH" //截屏 SAVE:IMAGE "G:/GPIO1HIGH.png"参考资料4, 5, 6 Series MSO (MSO44, MSO46, MSO54, MSO56, MSO58, MSO58LP, MSO64, LPD64) Programmer ManualTEKVISA Connectivity Software - V4.2.0