how to configure SANAV ML-7 logger?

GPS/GNSS Development Boards
1

Hi guys,

Is there someone who can how to configure the SANAV ML-7 GPS Logger?

http://www.sparkfun.com/commerce/produc … ts_id=8836

I want to know how to initialize it to start the communication to download the data, erase flash, set baudrate, and etc. It is not the NMEA commands.

I used a serial terminal to read the output and I read NMEA strings like a normal GPS, but I couldn’t configure it.

I saw some strings PMTK using the jpevulator serial sniffer.

Cheers

2

Well done.

A tip of the hat, and I hope you get good responses.

3

If you’re still having difficulty, I just got mine running. You have to install the software (seems like you already did) then find out which port your computer has assigned to it (on mine it assigned it to port 15 which you can find out by expanding “Ports” under Device Manager and checking which one is assigned to “Prolific…”) After that, connect the device to your computer and turn it on THEN (I’m pretty the “THEN” is important because I couldn’t get it to work otherwise) open the "GPS Logger Utility. Click the Port button, choose your Comm port, select a Baud Rate (I’m running at 115200) and press connect. Should be running from there.

4

Exactly, configuration is done via the “Gpsview” application after selecting the correct com port and having the unit switched not.

As I understand it, the ML-7 is capable of Differential GPS functionality and in Europe through the EGNOS system (which went live in November 2009).

My question is: How do I enable this in the ML-7 device? I can only see choices for RTCM and WASS in the DGPS tab of the User Setting in the GPS View application.

Is it possible to send any control codes to it manually? (Are NMEA sentences only for reading data or also for setting parameters?)

Thanks for any input,

Daniel

5

Very small indeed, but you’re right the -146dBm sensitivity is not very good (MTK rated at -158dBm and SiRFstarIII at -159dBm), especially for a logger that will likely be tossed in a pocket or backpack. 51 channels does point to the MTK chipset, but maybe it’s a competitor, 48 hour battery life seems longer than usual too.