Before the MAX232, actually.. it'll most likely be a 2N3904 with a pull up to 5 volts, so that an input on the base pulls it low - same as the RX side of the...
108
Jason Rausch
ke4nyv
Apr 1, 2006 2:39 am
Scott, do you have a basic schematic for the MAX232/Inverter circuit? When we talked you told me that the serial routine was already inverted, so an addition...
107
scott@...
n1vg
Apr 1, 2006 1:58 am
Ok. For what it's worth, production units won't require this initial load - they'll have a working firmware image loaded already, which should reduce a lot of...
106
Brian B. Riley (N1BQ)
briann1bq
Apr 1, 2006 1:55 am
two others, one running XP Home and an old Thinkpad 365 XD with Win 98 SE. I will give them a try tomorrow morning....
105
scott@...
n1vg
Apr 1, 2006 1:41 am
Hmm, not sure what would be causing that then. I've never had it hang during programming. Do you have another computer you could try it with? Scott _____ ...
104
Brian B. Riley (N1BQ)
briann1bq
Apr 1, 2006 1:35 am
WinXP Pro fully up to date...
103
Brian B. Riley (N1BQ)
briann1bq
Apr 1, 2006 1:10 am
normal real serial ports (16550s I think) WinXP on an Athlon 2100+ core with 1GB RAM) On Mar 31, 2006, at 7:48 PM, <scott@...>...
102
scott@...
n1vg
Apr 1, 2006 12:48 am
The bootloader flashes red when it first starts, then green when the clock oscillator starts. If no other code is loaded, it immediately resets and you get...
101
Brian B. Riley (N1BQ)
briann1bq
Apr 1, 2006 12:34 am
well, that is what seemed to do it earlier. I went back and tried it again, and this time I cannot get past the "waiting to connect reset the open tracker...
100
Brian B. Riley (N1BQ)
briann1bq
Mar 31, 2006 10:55 pm
what is the name of the EXE file I should be using? I tried both versions and got same results, light goes steady green, progress window opens and says...
99
Jason Rausch
ke4nyv
Mar 31, 2006 10:52 pm
So far, without any kind on MAX232 style help, the only GPS I can get to work with it is my eTrex Legend. I REALLY want to use my Map176c instead. I would ...
98
scott@...
n1vg
Mar 31, 2006 10:14 pm
I haven't been getting much feedback on the GPS waypoint plotting feature. Who's using it, and with what GPS receivers? Any issues? Scott...
97
scott@...
n1vg
Mar 31, 2006 10:13 pm
Try connecting power AFTER you click the 'connect' button. Might be more reliable in this case. Scott _____ From: tracker2@yahoogroups.com...
96
Brian B. Riley (N1BQ)
briann1bq
Mar 31, 2006 5:55 pm
Board seems to be up and running ... No Smoke, No Shorts. I Put power to it with chips in place and I get a flashing red/green LED. Downloaded all the the OT2...
95
Wes Johnston
kd4rdb
Mar 31, 2006 4:19 pm
Well, if you don't include a AC coupled CD line, I'll (ie the end user) will have to make an AC coupled rectifier... seems like a simple cap in series with a...
94
Jon
c0j
Mar 31, 2006 7:44 am
An obvious question, and given that he's an electronics engineer, I'll wait until I'm sure he has coffee before asking him :) Cheers John ... ...
93
Brian B. Riley (N1BQ)
briann1bq
Mar 31, 2006 4:14 am
I Think that's the same round the Dragunov uses which is essentially the same as the 7.62x54 NATO or .308 Winchester. The original 30-06 used in the 03...
92
Jason Rausch
ke4nyv
Mar 31, 2006 1:59 am
... eah, we have a decent one just down the road from the shop. I might have to drop by there and see what he carries. I like the tall skinny ones because I...
91
scott@...
n1vg
Mar 30, 2006 10:08 pm
Very odd. Let me know what you find out. This new cable has 2 and 3 crossed over, right? Scott...
90
scott@...
n1vg
Mar 30, 2006 10:08 pm
I think my record so far is 45 minutes. That was with some running around the shop grabbing parts from bins, rather than getting them all out of a bag. Not...
89
scott@...
n1vg
Mar 30, 2006 10:05 pm
The first prototype was built to fit the PacTec CNS-0101, which it almost does. I want to see if it'd be possible to squeeze a simplified version into a C6...
88
Jon
c0j
Mar 30, 2006 9:22 pm
... Evening, We made up another cable just pins 2,3 & 5. Same result, except this time I gave it to a friend of mine to look at. We're beginning to suspect...
87
Brian B. Riley (N1BQ)
briann1bq
Mar 30, 2006 9:20 pm
I can go either way, but if I had my druthers, I would want an SMT and am willing and able to assemble it. Speaking of assembling, I finally got all unpacked...
86
scott@...
n1vg
Mar 30, 2006 8:59 pm
... No kidding. Somewhere I've got a tape of a newsclip where I can be seen in closeup intently searching for the rubber band I dropped....
85
Curt, WE7U
we7u
Mar 30, 2006 8:51 pm
... I very much want an SMT version, whatever form the kit or partially/fully-assembled board is sold in. For SAR work. Then again, the next generation...
84
J. Lance Cotton
kj5o
Mar 30, 2006 8:47 pm
... What size board would the SMT version be? Would it also have the locking DB-9 connectors? -- J. Lance Cotton, KJ5O joe@... ...
83
scott@...
n1vg
Mar 30, 2006 8:37 pm
I hadn't planned on doing a through-hole kit originally, but the demand for the beta kits has made me reconsider. I'm going to be hard pressed to get an SMT...
82
J. Lance Cotton
kj5o
Mar 30, 2006 8:00 pm
Scott, What's the planned final form for the Tracker2, once it's ready for general consumption? Surface-mount pre-assembled only? Through-hole kit? -Lance KJ5O...
81
scott@...
n1vg
Mar 30, 2006 7:25 pm
Didn't someone already built a '2211-based DCD board? I think Bob was complaining about it. As for the AC-coupled CD input, I just want to avoid adding...
80
Wes Johnston
kd4rdb
Mar 30, 2006 7:20 pm
The best way _would_ be if it could discern packet tones on the 144.39 radio at the reapter site. But an AC coupled CD input like on the tiny tracks would be...
