Buzzz

Yes, I wonder too :roll: I don't think my problem is due to a Port connection but to a language understanding, since Tomtom succeeds reading the NMEA sentences and then transmits it correctly to GPSgate. The question I ask myself is :"what does Tomtom I don't, to the NMEA sentences?" PS : The freeware you talk about is for a PC. GPSgate can be used for a PPC.

Recently, I made a new program similar to GPSout but for another sim. I had a problem that may also exist with GPSout : all the pocketPC program may not recognize the GPS signal. For example, for me, Tomtom or PocketFMS worked, but not OZIexplorer. The solution I found is to use GPSgate. GPSgate is GPS splitter program. In GPS gate, select TomtomGPS as input and create a virtual port as output (let say 7 for example). Then in your GPS prog, select the virtual port 7 as input : It works!

Cemonitor is a small PocketPC app that allows you to see the received NMEA sentences, but it also allows you to setup your GPS antenna (if it supports it). In this setup, you can ask your GPS to send data in NMEA or Sirf format, and you can also setup the sentences it will transmit to your Pocket PC. For example 1 GGA sentence every second, one GSV every 5 seconds,.... To summarize, The NMEA protocol is one way, but you can send data to the GPS receiver to configure it. I will ask the programmers of the original extraction code if they allow me to use their code in my program. Then if they agree, I'll put it as free on the Internet. If they don't, I'll try to do the extraction part by myself.

This question comes from the fact that some sentence types seem to come less than other (i.e. GSV sentences) If you try CEmonitor, you'll see that by default it's configured to ask the GPS receiver to send 1 GGA sentence every second, and 1 on the other side 1 GSV sentence every 5 seconds. But, maybe there is no problem to send all the sentences every second, unless it reaches 480 bytes. Thank you for all. If you've a technical interest in my code (maybe), I'll send it to you when it's finished. ;)

Thanks to your help, I succeeded in writing the NMEA sentences to the PocketPC, using the createfile() and writefile() functions. My new problem is that some programs recognize the sentences : - Pocket FMS - Tomtom GPS : it seems to lose fix repetedly but it keeps the position But som others don't: - CE monitor : fix is always blinks from grey to blue!? :roll: - Oziexplorer : I wanted to use this one, but it doesn't recognize the signal. I'm wondering if I use the right sentences and if I send it at the right time. Can you give me a tip on the good sentence arrangement? How many sentences of each type? How much time between sentences? Thank you in advance Laurent

Thank you for your help Pete. I'm not very good at programming and I needed this dll to be pointed at. I will try with this. If it doesn't work, I'll try to connect my PDA with a serial link. Best regards Laurent

It seems that your code for GPSout also works for USBlike for the COM port by writing this line in gpsout.ini : " Port=\\.\WCEUSBSH001" Do you think this ability is specific to C or would it work in VB? Thanks anyway Best regards Laurent

Up! Sorry to disturb again. Hi Pete, could you please give me some tips on how to communicate with the pocketPC connected to a USB port, to send my NMEA sentence. Could you give me a little bit of code?

Now, I need help to speak to the USB port. :?

Thank you very much for your answers.

Hi, I'm doing something similar to GPSout but for falcon 4. I'm to the point I have the GPS data in the NMEA sentence. The only thing I miss is the checksum. I found a VB.net code to calculate it, but I work with VB6 and there is a VB.net function for which I'm unbla to find a VB6 equivalent. "Convert.ToByte". It's applied on a Char variable. Anyone can help?