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hitodenashi
25 Posts |
 Posted - 07 oct. 2008 : 21:28:06
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First let me thank you for the support and patience.
Second, I'm stupefied.
The cable works fine, both tx/rx. Tested it with MiniGPS, it responds to commands (I can change the update speed and see the speedup).
But Flashtools wont budge :(
Tried power-cycling at different speeds, always the same.
It's probably gonna end up being something simple I'm missing.
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jdl
Bulgaria
10 Posts |
Posted - 08 oct. 2008 : 09:12:40
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You are welcome. Unfortunately I can't guess why FlashTools malfunctions in your case... I followed the instructions in .DOC file exactly and everything was OK.
The first thing I did was to see the exact size of supplied .bin file (new firmware), and to read-back to PC my M1000 original firmware, starting from position 0 and with length: the .bin file size I mentioned above. When the FlashTools asked me to reset the device, I power-cycled M1000 and immediately (1-2 seconds max) after that pressed the Ok button on the screen.
I must admit my first attempt to read-back firmware failed at the end of process, because the length of read data I passed to FlashTools was 1 byte shorter than it had to be. But that is not like what you've described...
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hitodenashi
25 Posts |
Posted - 08 oct. 2008 : 14:48:59
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Well, it turned out it was dead simple. I hooked it up to another computer, and it works nicely, did a readback and downloaded the new firmware. :D
Though it lost the mac address in the process :/
But it still works over bluetooth :)
I remember reading about losing the mac in this thread (it's ff:ff:ff:ff:ff:ff now), I have the original one saved so I could hex edit it into the firmware and flash again.
Did any of you do that?
BTW, haven't yet tested it outside, but it acquires lock much much faster and with more satellites.
Me is happy :)
Thanks again for the help! |
Edited by - hitodenashi on 08 oct. 2008 16:59:48 |
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mdeweerd
798 Posts |
Posted - 08 oct. 2008 : 15:46:08
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Hi
You could try to have a go at BT747 to restore the BT address. That way I'ld know if that function really works.
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hitodenashi
25 Posts |
Posted - 09 oct. 2008 : 08:43:06
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| Edited the mac into the firmware, flashed again, got my mac back. |
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jdl
Bulgaria
10 Posts |
Posted - 10 oct. 2008 : 08:41:49
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I was away from my home computer for two days, could not look in my archives to see what is the position of MAC address in firmware...
What are your impressions from new firmware? As I said before, there isn't almost any reminder of LSB, but still in very bad signal conditions, the M1000 is slightly more conservative than SirfIII-based receiver in deciding that you have started moving in small speeds (2-3km/h) afrer a long still-standing: it takes 4-5 meters before the M1000 reports actual speed and bearing.
Well, I'm satisfied with M1000 now; according to me, it's almost 98-99% equivallent in overall performance with SirfIII based receivers :-)
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stangri
Canada
4 Posts |
Posted - 12 oct. 2008 : 07:37:21
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Uhm, even tho I was told by Holux that LSB is a feature of the MTK and cannot be fixed, I'd like to try my older M1200 with the new firmware. Could the local gurus please suggest if any store-bought cable will do? Never soldered anything more complicated than two wires in my life! :)
Thanks in advance! |
Edited by - stangri on 12 oct. 2008 07:37:46 |
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hitodenashi
25 Posts |
Posted - 12 oct. 2008 : 13:07:06
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Well, I managed to do some limited testing while walking. The GPS receiver was in my side pocket.
The gist would be:
bad:
- still some traces of LSB
- position wobbles when standing still
good:
- much faster initial acquisition
- holds sat fix much better when the sky is obscured
I'll try to post some tracks to illustrate it.
BTW, even though it's not by any means perfect, it works much better than with the old firmware.
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stangri
Canada
4 Posts |
Posted - 13 oct. 2008 : 05:31:48
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In case there's interest here's the latest firmware for the M-1200: http://rapidshare.com/files/153470898/M-1200_update_procedure_080916_.rar
Not of much use to me tho -- can't find the original Holux cable and the M-1200 is not being detected at all without it. If anyone can suggest where I can get a replacement cable quick and cheap (well, beyond ebay/google products) or point me to a Holux dealer in Vancouver, BC to help me reflash the firmware I would greatly appreciate it. |
Edited by - stangri on 13 oct. 2008 10:07:24 |
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jdl
Bulgaria
10 Posts |
Posted - 13 oct. 2008 : 09:35:24
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There isn't a perfect GPS chipset indeed :-D The position wobble when standing still is inevitable, as the position is always calculated with some inaccuracy. The worse are the reception conditions, the more is wobbling. Sirf III also wobbles, just as old Sirf II, Motorola, etc. chipsets. It's a job for the upper level user software to filter this wobbling (or, in the case with Sirf III chipsets - StaticNav function is an implementation of such filter in the GPS chipset).
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Suriken
Spain
1 Posts |
Posted - 02 nov. 2008 : 22:47:53
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I want to buy or make by myself a data cable to update the firmware of my m1200. Because working with nokia sport, the route is so imprecise and it is not as the real path. Even under clear sky and open places.
There is any site in which I can read how to make a cable? |
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rdfair
1 Posts |
Posted - 23 févr. 2009 : 13:53:51
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Hello All: The "pregnant" lump in the middle of the USB cable for the Holux 1000 looks suspiciously like a normal USB-Serial port converter you can buy rather
cheaply. Here in the Philippines they cost about 250 pesos, which is less than
$6 U.S. Since the pin out configuration is available from Holux, wouldn't it work if you used one of these and just made adapters for the data in and out ports to
match the required Standard "A" on one side and a Mini "B" on the other side? It appears that this would be simpler than wiring up an external chip with all the capacitors and wires dangling about, with the possibility of short circuits, etc. What does the group think?
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MasterJulian
2 Posts |
Posted - 08 mars 2009 : 17:36:11
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I tried to build a cable for my M-1200 because I don't wanna pay 20#8364; (+ delivery) for it. I used a MAX 232 CPE and 5x 1µF capacitors, but it doesn't work. I don't get a signal from it. The MAX Chip and the M-1200 are powered through 5V from a USB connector (the Power LED on the BT Device is on). I used Perfboard. The wireing is ok. My layout looks like this:
What could be wrong?
PS: Sorry for my bad english |
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florincr
2 Posts |
Posted - 14 mars 2009 : 10:39:00
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| did you swapped the serial pins ? |
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florincr
2 Posts |
Posted - 14 mars 2009 : 10:47:53
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i had the same problem, but after change com 3 with com 2 it workt.
I wanted to update the firmware because because my holux m-1000 it has a very poor signal. it search for satellites for about 2 hours and only find 1 or 2, not enoght to make a FIX. I had B-core_1.0 0012 and now after FW update I have B-core_1.20,002F, but the same problem. Anybody knows what problem it can be? |
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HOLUX M-1200 and M-1000B
