Search found 637 matches

by paul
Tue Jun 03, 2008 12:03 pm
Forum: BBB
Topic: BBB board and ftdi cable under lInux
Replies: 7
Views: 14068

Re: BBB board and ftdi cable under lInux

Did you get FTDI drivers installed. With the Mac and Windows, you can check this by plugging / unplugging cable and the listing for the serial port goes away in the Arduino IDE. I'm not sure how Linux handles this though. There is lots of discussion about the FTDI drivers vis a vis Linux in the Ardu...
by paul
Tue Jun 03, 2008 12:00 pm
Forum: RBBB
Topic: Auto reset problem
Replies: 21
Views: 37398

Re: Auto reset problem

The Diecimila schematic has two paths, one cap on RTS and one on DTR. Do Diecimila users ever see the problem? The Diecimila uses the DTR line for reset signalling I believe, most of the time though the RTS line will parallel the DTR line, except when it doesn't I guess. I suggested to the Arduino ...
by paul
Sun Jun 01, 2008 7:30 pm
Forum: RBBB
Topic: Problem with RBBB
Replies: 7
Views: 8656

Re: Problem with RBBB - postscript

This turned out to be a broken trace on the positive power line, at the USB jack. I don't know if the customer did any swapping of parts or other repair on the board, I did a continuity test of 50 boards for a quick check and found no problems. Will watch to see if this problem surfaces again, but I...
by paul
Thu May 29, 2008 12:03 pm
Forum: RBBB
Topic: Auto reset problem
Replies: 21
Views: 37398

Re: Auto reset problem

Well I'm stumped. If it consistently resets after reboot then it seems like you must have the capacitor in correctly. From there my only guess is that it's something with the way Windows handles the serial port. Setting the "set RTS on close" checkbox has cured all the other cases of this I've come ...
by paul
Wed May 28, 2008 4:21 pm
Forum: RBBB
Topic: Auto reset problem
Replies: 21
Views: 37398

Re: Auto reset problem

It's really hard for me to say what the problem is since this is a scratch built board, and not one of mine. If the it works with a manual reset, I would say that the problem may be in the reset system. Are you using a 10k pullup resistor? And a .1 ufd (104) coupling capacitor to the RTS line? Witho...
by paul
Mon May 26, 2008 8:45 pm
Forum: RBBB
Topic: Auto reset problem
Replies: 21
Views: 37398

Re: Auto reset problem

This is the exact symptom of the problem. It will download one time only after reseting the serial port (probably requires a reboot).

Please change the appropriate serial port settings and your problems will be over.

Paul
by paul
Sun May 25, 2008 11:44 am
Forum: RBBB
Topic: Auto reset problem
Replies: 21
Views: 37398

Re: Auto reset problem

You can't really see the reset pulse with a multimeter - it's too fast. You may just be able to see a flicker in between a fraction of volt. This is because multimeters have some circuitry (or physical configuration such as meter) that integrates (averages) the voltage over a time period, usually in...
by paul
Fri May 23, 2008 5:08 am
Forum: Modern Device Policies
Topic: Obscured address on Contact page
Replies: 1
Views: 6828

Re: Obscured address on Contact page

You've got a point there Severian, I'll redo it.

Paul
by paul
Thu May 22, 2008 9:49 pm
Forum: RBBB
Topic: Is this all I need to start?
Replies: 1
Views: 4580

Re: Is this all I need to start?

Severian I think from another page on your website that the FTDI cable will go from a USB port on one of my Linux computers to the plug on the RBBB. Is that right? You are correct about this. The cable and an assembled RBBB will get you programming almost instantly. (After you get the drivers instal...
by paul
Thu May 22, 2008 9:40 pm
Forum: Development
Topic: freeduino nano
Replies: 3
Views: 7796

Re: freeduino nano

I'm watching, and communicating with, Brian Evans about his Nano version (Freeduino Pico), which I think makes a whole lot more sense than the Nano. I was trying to pitch him on all the Freeduino sites going in together on common pricing (and large production run for good prices). I'm also working o...
by paul
Tue May 20, 2008 11:52 pm
Forum: RBBB
Topic: Problem with RBBB
Replies: 7
Views: 8656

Re: Problem with RBBB

OK if you're really stuck, send the thing back and I'll fix it or give you new one. It's worth it to me to see all the error modes in my products and either fix the hardware or the instructions.

Paul
by paul
Mon May 19, 2008 10:24 pm
Forum: RBBB
Topic: Problem with RBBB
Replies: 7
Views: 8656

Re: Problem with RBBB

FTDI does make a 3.3V cable. Did you put a meter on the cable and see if 5V are coming out of the cable? This sounds like it could be a possibility. Did you buy the cable from me? It's possible they had another cable mixed in with a batch, I buy them in fairly large lots so it could well have escape...
by paul
Fri May 16, 2008 10:25 pm
Forum: Exhibition
Topic: FM Stereo Broadcaster...
Replies: 7
Views: 25448

Re: FM Stereo Broadcaster...

Thanks for the post Mike, very cool project. What's your source of audio / specific application for this? Your server was down when I tried to check.

Paul
by paul
Fri May 16, 2008 10:12 pm
Forum: Software
Topic: FTDI cable problems under Vista+SP1?
Replies: 3
Views: 8725

Re: FTDI cable problems under Vista+SP1?

Jerry, I don't have a machine with Vista on it and am also not much of a Windows troubleshooter. You might try posting this in the Arduino forum too, and also try FTDI. My experience with them is that is takes two to five days for them to get back to you, but they eventually do. I've definitely had ...
by paul
Fri May 16, 2008 10:04 pm
Forum: RBBB
Topic: Problem with RBBB
Replies: 7
Views: 8656

Re: Problem with RBBB

TC The 3V reading is a bit of conundrum. It may just indicate that the current draw is much larger than it should be. Or you may have a flaky solder joint on a power line. Here are some things to try. Chip in correctly? Cable connected with black wire to ground? 10K resistor to switch. Diode in with...
by paul
Tue May 13, 2008 4:15 am
Forum: BBB
Topic: BBB FAQ
Replies: 0
Views: 8575

BBB FAQ

Bare Bones Board Frequently Asked Questions (FAQ) This FAQ will updated with answers to customer questions deemed to be of general interest. Q: How long does it take to put a BBB together. A: That depends on experience. Plan on it taking 30 to 45 minutes for a person with intermediate soldering skil...
by paul
Mon May 12, 2008 4:19 pm
Forum: Modern Device Policies
Topic: New Forum
Replies: 0
Views: 5764

New Forum

Welcome to the new Modern Device Forum. I had some bad experience with spam on my last effort, but I think I have this one fairly well bolted down. Please help control spam by emailing me if you see spam. I'll try to respond in a timely manner. Right now most of the policy things are still on the sh...