How to connect MT3329 to Mini GPS software...??

I have a MT3329 GPS with the DIY Drones new firmware....( AXN1.30_2243_3329_384.1151100.1 )

I was to flash it with the old default NMEA firmware....

Where can I download the default firmware from....??


The main reason why I want to load the default firmware NMEA firmware is to connect the GPS with the FTDI cable to the Mini GPS software....

Even tell me if its possible to connect to the Mini GPS software with the DIY Drones new firmware...??

If possible plz tell me how do I connect...??

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Permalink Reply by Ken on November 23, 2010 at 4:13pm
AXN1.30_2243 *is* the old (summer 2010) firmware. It has "the longitude error" in binary.
AXN1.30_2278 is the current (newest that I am aware of) version.

What do you think that the old firmware does that the new does not? The new talks NMEA @ 38400bps by default, as did the old.
Permalink Reply by Chandan Roy on November 23, 2010 at 7:49pm
Where do I download the latest firmware from...??
Cn u please gimme a link to download that...??
Permalink Reply by Ken on November 23, 2010 at 8:20pm
http://ardupilot.googlecode.com/files/MTK_DIYdrones.zip

Download, unzip, then READ MediaTek_Programming.pdf that is your "how to" directions.

IMPORTANT NOTE: If your GPS is giving the "weak power supply" symptoms -- talks garbage, blinks less than 1Hz, never locks -- you won't be able to upload new firmware. You must have an operational GPS first, even if it means jumpering in a booster 3.3v power supply. Even if you do have a working GPS, writing to flash may take more current and fail.
Permalink Reply by Chandan Roy on November 23, 2010 at 8:23pm
well I did not face any problem...
I have flashed the GPS...

and yes the blue LED blinks at 1Hx rate...
thats
1sec on
1 sec off
I hope thats ok....??
And it is able to lock itself...
Permalink Reply by Ken on November 23, 2010 at 8:30pm
1 sec on, 1 sec off means it takes 2 seconds to complete a cycle = 0.5Hz which usually implies trouble.
But, if it locks, it locks.
Permalink Reply by Chandan Roy on November 23, 2010 at 8:51pm
So how do I fix that problem of 0.5Hz flashing rate...??
Or its jus fine...??

I have checked that he GPS locks itself when I take it outdoor....
It takes about a minute for the GPS to get licked...
Permalink Reply by Ken on November 24, 2010 at 6:10am
The blinky light is just a signal to management. Makes them think you have something working. The data is what is important.

If it locks, it locks. If it ain't broke, don't fix it.

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