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 | | Re: Get Alias Info
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| In your message you said: (...) Arghh! The "get alias info" command is on the web pages, i.e., (URL) everyone, remember there is nothing automated about the handy board mailing list. to get on it, I must manually put you there. to get you off it, i (...) (29 years ago, 25-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.031)
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| | Re: OC2 and OC3 outputs?
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| Take a look at the schematics, which are linked from the top page of the Handy Board web site. The info you are looking for is in the CPU / memory schematic. For the DC Motor outputs, the board uses a separate output latch---not the timer outputs. (...) (29 years ago, 24-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.031)
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| | Re: Resets
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| (...) I can't say that I have an explanation of why the motors would work at first and then cause problems later, but I can say that: Not all motors work with the Handy Board. In particular, motors that want to draw too much current (e.g., more than (...) (29 years ago, 22-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | How to free up OC2?
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| I believe I can disconnect the OC2 pin from the unneeded IR-Xmit function, so I can divert it for my own use. Would that require any trace cutting, or perhaps removal of the LED Xmitter? Or, better yet, is it all a software change? Fred, I know (...) (29 years ago, 28-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | Re: Resets
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| (...) Well that would do it---it would discharge your battery. You actually should be getting more like 9.6 to 10v from a fully charged battery. Why don't you get an adatper that works and charge your battery until it's slightly warm and then see if (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | Re: Expansion Board
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| Dear Luc, Thank you for your feedback regarding the Expansion Board. (Other users out there---what's going on?) To answer some of your questions: (...) you can try requesting a sample from maxim directly. They even let you do it from their web site: (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | Re: Resets
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| Is it possible that your battery is simply discharged? Does the board exhibit the problem when you try driving the previous motors that did not give you a problem? Regarding the charge light on the serial board, are you sure that the charge rate (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | Re: strange IC files?
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| i think it would be good if beta users cc'ed their bugs along the handyboard list--I am interested in hearing how it's working but don't have time to bang on it directly. Perhaps others feel the same way. -Fred (29 years ago, 17-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | TOC 2 & 3
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| AAAARRRGGGHHHHHH!! After the pain of relearning assembler and getting interrupt routines to work, it seems my assumption of the availability of TOC 2 & 3 is incorrect. I need 2 (wanted 4) pulse trains to go out. According to the diagrams Fred (...) (29 years ago, 24-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | Re: Motor control
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| (...) Yes, and speed control is built in to the Interactive C motor function. motor(0, 100) turns on motor 0 at full speed; motor(0, 50) is half speed, etc. While we're on the topic, I am considering changing the speed argument, because in actuality (...) (29 years ago, 16-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | Re: Handboard w/Servo Question
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| (...) the code is contained in the freeware Interactive C distribution, in the libraries directory. It's named servo.c and servo.icb. There may also be a servo.lis file to load both of the other two. -Fred (29 years ago, 14-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.030)
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| | Re: Unsubscribe
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| you are unsubscribed. In case any one else is wondering, the proper procedure for getting unsubscribed -- as indicated on the mailing list page -- is to send a private e-mail to me. Thanks. -Fred (29 years ago, 12-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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| | Re: L293 B/D/E
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| In your message you said: (...) no, you can't use the type B. See the HB FAQ for an explanation of this: (URL) am pretty sure the "E" is not compatible either -- it has 20 pins, right? sorry, but you need a D, or the TI replacement part indicated in (...) (29 years ago, 12-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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| | if hbdl is giving you problems...
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| make sure all DOS shells, as well as any other program that might be using the serial port, is closed! hbdl can't get access to the serial port properly if some other program is using it. Jeffrey, please let us know if that was your problem. -F (29 years ago, 10-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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| | RE: Motor control
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| I would rather have use of the 0 to 8 range because many of the values in the 0 to 100 range simply fall into groups which give only 9 speeds. However, I do not support rewriting the IC code. Tom's suggestion, motor(1,value*14), is simple and meets (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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| | Re: Servos w/ the handyboard?
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| (...) Yes. Just use the "servo.icb" and "servo.c" libraries that are distributed with Interactive C. This will convert the Handy Board's digital input 9 sensor (which is really a bidirectional counter/timer pin) into a stable servo control line. You (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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| | RE: Motor control
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| Well if you believe in encapsulation it should be 0 to 100.0 %, then the implementation of the motor speed control could give its best effort in that regard. One of the things I hope to do on my Handyboard is set it up to run two of my PIC motor (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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| | Re: Motor control
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| I like 0 to 8 better. Also is there any way to control the frequency at which the PWM works? I find that some of my motors deliver too much at step 1. How about if there was something like: motor( motornum, cycles_on, total_cyles); if you feed (...) (29 years ago, 18-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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| | hbdl users -- please check in
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| If you have tried hdml.exe for Windows 3.1/Windows 95, please send a status report indicating: * what CPU type/speed your PC is; * which OS you are running; * which type of 6811 you tried it on (A series or E series) * did it work for you. Vadim and (...) (29 years ago, 10-Mar-96, to lugnet.robotics.handyboard)
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fred
(score: 0.029)
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fred
(score: 0.029)
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