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by rguarino
Sun Sep 12, 2004 7:36 pm
Forum: SerialTools
Topic: OnRead getdata in buffer although BufferSize=0 !!!
Replies: 6
Views: 3594

RE: OnRead getdata in buffer although BufferSize=0 !!!

Additional info. i am using the stringtobytearray method. Here is a sample of the code. 'objPort.Read(0, 5000) bytes = objPort.StringToByteArray(Data) Dim ms As New MemoryStream(bytes) Dim r As New BinaryReader(ms) MsgBox("message size " & ms.Length) msg = objPort.ByteArrayToString(bytes) ms.length ...
by rguarino
Sun Sep 12, 2004 6:49 pm
Forum: SerialTools
Topic: OnRead getdata in buffer although BufferSize=0 !!!
Replies: 6
Views: 3594

RE: OnRead getdata in buffer although BufferSize=0 !!!

I am having a similar problem and cannot use End Trigger since my messages are both Text and Binary. I have buffer to 0 and expected it would fire onread each time anything was in the buffer. When i ask for a binary message I only get the first char 'E' but the record is 65 bytes in total length. Wh...
by rguarino
Tue Aug 24, 2004 1:55 pm
Forum: SerialTools
Topic: Receiving various messages incl NMEA
Replies: 2
Views: 2061

RE: Receiving various messages incl NMEA

FYI! It appears like the sample VB.NET SerialPort had a little bug that i fixed and now the sample serialport vb.net application works with our unit. There was an Exit Sub statement in bStart_Click after the parse that was causing it to just sit there. You might want to remove that for future downlo...
by rguarino
Tue Aug 24, 2004 1:11 pm
Forum: SerialTools
Topic: Receiving various messages incl NMEA
Replies: 2
Views: 2061

RE: Receiving various messages incl NMEA

Here is s sample output from our device but when i run the SerialPort No Events Vb.net demo it does not do anything. Messages arive at 20Hz $GPRMC,000009.448,A,4724.5389,N,00937.2326,E,0.00,291.2,060180,,*3F $GPGGA,000009.448,4724.5389,N,00937.2326,E,7,12,99.9,440.1,M,,,,0000*39 $GPRMC,000010.213,A,...
by rguarino
Tue Aug 24, 2004 12:35 pm
Forum: SerialTools
Topic: Receiving various messages incl NMEA
Replies: 2
Views: 2061

Receiving various messages incl NMEA

I need to read/write to a device that sends standard NMEA messages along with other custom data say sitting on virtual port 7 and parse out the messages to various clients based on a message type. I tried using the serial tool sample noevents but it hangs. I am need to be in an asynchronous mode wit...
by rguarino
Tue Aug 24, 2004 12:19 pm
Forum: GpsTools
Topic: Mapping
Replies: 1
Views: 1996

Mapping

We are working with your tools evaluating them and trying to research the denied GPS situation. Our product puts out standard NMEA messages just like a GPS so we feel there should be no problem marrying the two. What is the best way to handle a map that is a floorplan of the inside of a building whe...

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