 | | pa7 9600 serial output
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Hi, I'm trying to interface the FerretTronics Servo Controller Chip FT639, to the handyboard using PA7. How can i modify the pa7_9600.asm file to transmit at 2400 baud? thanks, phet (27 years ago, 15-Feb-98, to lugnet.robotics.handyboard)
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| | Re: 68HC11 modes
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The handyboard has to stay in special test mode so that it can switch into and out of 'single chip' mode at will. This is necessary to operate the LCD (which uses either a clever or gross hack depending on your taste). If you are writing code using (...) (27 years ago, 14-Feb-98, to lugnet.robotics.handyboard)
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| | RE: encoders
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(...) In my experience, it doesn't matter how slow the pulse is. The count is increased each time the analog port value crosses outside of the middle range defined by the two threshold values as shown below (please note that you'll need to view this (...) (27 years ago, 14-Feb-98, to lugnet.robotics.handyboard)
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| | RE: encoders
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-----Original Message----- From: Will Bain [SMTP:willbain@cs.umt.edu] Sent: Saturday, 14 February 1998 12:50 To: handyboard@media.mit.edu Subject: Re: encoders (...) trouble.When I try to load the file fencoder0.icb I get a message that ic cannot (...) (27 years ago, 14-Feb-98, to lugnet.robotics.handyboard)
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| | Re: encoders
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(...) trouble.When I try to load the file fencoder0.icb I get a message that ic cannot find the file.Any hints? (...) pulse or what dictates how the count is incremented. I think the file is named fencdr0.icb by default (not fencoder.icb). Maybe (...) (27 years ago, 14-Feb-98, to lugnet.robotics.handyboard)
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| | public apology
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Yes -- I didn't think very hard and in retrospect it's fairly evident that Jan-Sipke's code is just the starting step. Sorry for being such a blunderhead. (Jan-Sipke and I have been exchanging some private messages and I think he's closing in on a (...) (27 years ago, 14-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Sonar
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If the diodes are getting hot, it does indicate a short. Fred In your message you said: (...) (27 years ago, 14-Feb-98, to lugnet.robotics.handyboard)
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| | Re: 9v lego motors
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Everyone is complaining about the price of LEGO motors. There is a new product, a gear reduction motor, that is a great value. It is a super efficient DC motor with a built in gearbox that can be used for direct drive, or with one stage of gear (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Interrupt for serial data
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(...) Sipke obviously realizes that more work is needed, and justs want to get to step 1 first by recognizing the interrupt. That is exactly what I would do too. I've been thinking about writing an interrupt-driven serial receive routine too, but (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Interrupt for serial data
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Jan-Sipke, You're really pretty far away from having this work. It's not just a matter of redirecting the serial interrupt; when you get there, you have to: * store incoming character in a buffer * advance the buffer pointer * check the buffer for (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: 'uploading' data?
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(...) Yes, this is very possible, and I've done a fair amount of work for various experiments where I needed to get data back from the board. First, you should check out (URL) the routines that the 6.270 and Handy Board that let you disable the (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Lego 9V motors work well?
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In article <v03007807b10a2f11bb...4.217.7]>, Greg Starr <starr@unm.edu> writes (...) I've used lego motors and have found them much better than other motors i have tried for torque. The ease of integrating them into lego buggies is obviously a major (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Sonar
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In article <v03020900b10948ab85...2.4.189]>, Michael S. Reiling <macman@inreach.com> writes (...) Did you remember to solder the C7 capacitor in? ___ IAN | |__ _______ ______ ___ ______ ___ ___ | _ \| _ | ___| | | _____|\ \/ / | |_ ) | _ | |_--- (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Lego 9V motors work well?
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Hi Greg, I have been using LEGO 9v motors for a few years and I am very pleased with the results. I run freshman and sophomore engineering design and computer science courses using LEGO kits and HB's. The motors are well worth the price if you are (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Lego 9V motors work well?
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LEGO motors work great. Fred (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | using relays to run a motor
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Hi Ive elected to use 2 relays to run a motor. Im going to put one motor on with the power coming in 'straight' and the other one in reverse of the first one: [RELAY 1] [RELAY 2] ++ -- -- ++ (power is inverted) |--------| |---...---| | \_______ | (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Lego 9V motors work well?
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[Greg Starr] spake unto the ether: (...) Performance-wise, they are okay (i.e., they are powerful enough). I don't like the short axle they have on them, though (compared to e.g. a Mabuchi motor with a LEGO 2x drilled axle Super-Glued onto the motor (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Lego 9V motors work well?
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What has been people's experience in using the Lego 9V motors with the Handyboard? I know they're overpriced, but they are easy to use... We've used small RC car motors etc. in our Lego robot course in past years, but some students have been looking (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | re: 9v lego motors
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Lego motors are OK ptrformance wise (if youre talking about small robots), but the cost is really bad. What I would recommend is taking surplus motors and superglueing them together to lego bricks. Especially for photsensors and switches. phil (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Interrupt for serial data
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I've decided to write an interrupt routine for the handling of serial data on the Handy Board. An example of an interrupt routine is given in the Handy Board technical reference. This works like a charm. I've modified it to use the SCI interrupt. (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | encoders
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Hello all, I am attempting to use the shaft encoder routines but am having trouble.When I try to load the file fencoder0.icb I get a message that ic cannot find the file.Any hints? Also I would like to know whether these routines count off one edge (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Sonar
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Yup. I loaded the sonar.c file and ran the sonar_display() routine. It just displays values that make no sense. The sonar doesn't click and the diodes get hot. After recieveing some mail from other, I have come to the conclusion that the diodes are (...) (27 years ago, 13-Feb-98, to lugnet.robotics.handyboard)
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| | a scary story
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Just an interesting (or perhaps not) story about what just happened to me this week while putting my Handy-Board together. I was on the section where you put on the digital input circuitry, and all was going well so far - it loads pcode_hb.s19, (...) (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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| | 68HC11 modes
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Return-Path: <roneill> Received: by thorung.eeng.dcu.ie (Linux Smail3.1.28.1 #5) id m0y2kzc-000FSwC; Wed, 11 Feb 98 22:51 GMT Message-Id: <m0y2kzc-000FSwC@tho...ng.dcu.ie> Date: Wed, 11 Feb 98 22:51 GMT From: roneill ("Richard O'Neill (...) (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Sonar
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Yes. It "clicks". I quess it's the part at the frequencies humans can hear. ---...--- ericson mar Master of Engineering Candidate Project: Mobile Robotics mar@cooper.edu (212)353-4356 Department of Mechanical Engineering The Cooper Union for the (...) (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Fw: questions on IC
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re: #1, in a sense, the stuff you downloaded *is* there, but IC doesn't know how to access it until you re-download. So yes, each time you restart IC, you must re-download your project. re: #2. there are not good reporting tools for memory usage. i (...) (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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| | 'uploading' data?
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Hi, I am programming a 6.270 board with IC and wondered if there was any way of 'uploading' data from the board back to my PC? or would the only way to get the data be to print it out on the screen.... Thanks, Ruth (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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| | Revision
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Earlier I complained about the BATT light coming on, but then stupidity was pushed out of the way and I realized the battery was almost dead, so I plugged in the charger and put it on Zap. Sonar still does nothing, but the diodes got pretty warm. As (...) (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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| | Sonar
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I finished hooking up my 6500 sonar tonight, and it does nothing. Actually, the Handy Board's BATT light comes on, which indicates to me that there is a short some where along the lines. I checked my wiring and everything seems to be okay. I did (...) (27 years ago, 12-Feb-98, to lugnet.robotics.handyboard)
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| | Fw: questions on IC
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If there is ANYONE out there who can give me just a little guidance on these two issues, or at least the first and most important one, I would certainly appreciate hearing from them... an extended treatise isn't necessary, just a short answer will (...) (27 years ago, 11-Feb-98, to lugnet.robotics.handyboard)
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| | RV: Proximity cards readers
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-----Original Message----- De: Germán Gentile <ggentile@cvtci.com.ar> Para: Chuck McManis <cmcmanis@FreeGate.net>; Lista de Robótica General <robot-board@cmf.nrl.navy.mil>; Lista de Motorola- 6811 <Mot-68HC11-Apps@fre...tsps.com>; Lista de El_MICRO (...) (27 years ago, 11-Feb-98, to lugnet.robotics.handyboard)
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| | Proximity cards readers
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Anybody has used that cards??? I want to comunicate my 68hc11 with that. Wich protocol use??? Anybody know one reader what read westinghouse cards??? thanks a lot.... Germán Pablo Gentile. Genesys - Ingeniería en Sistemas. Data adquisition. Integral (...) (27 years ago, 11-Feb-98, to lugnet.robotics.handyboard)
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| | Re: Serial line interrupt
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you could write an ICB driver that accepts the incoming serial char interrupt and buffers it up. other than that slowing down the PC is probably the best option. fred In your message you said: (...) if (...) ry (...) ng (...) (27 years ago, 11-Feb-98, to lugnet.robotics.handyboard)
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| | questions on IC
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Hi all, These questions are probably pretty trivial, but please bear with me, as I have only been using IC for 2 days: 1. I was under the impression that the files I loaded onto my HB would remain there when I turn it off, I mean, the pcode does, (...) (27 years ago, 10-Feb-98, to lugnet.robotics.handyboard)
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| | Serial line interrupt
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Hello all, I'm currently trying to communicate between the Handy Board and a PC (i486) using the existing serial line between the two. Sending data from the handy Board to the PC is no problem. An interrupt handler puts all incoming serial data into (...) (27 years ago, 9-Feb-98, to lugnet.robotics.handyboard)
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| | IC and IR
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This weekend, I got my HandyBoard running! Everything went fine, exept that the pice of paper which was glued on my battery pack turned out to be a theft-protection: it contained a magnetic layer, which caused short-circuit, but after solving that, (...) (27 years ago, 9-Feb-98, to lugnet.robotics.handyboard)
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| | Pcbug config set.
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(...) I have PCbug running and I can boot the hc811, after reading the motorola "Pink book" and the tec. docs I cant find anything on how to set the congif register. Does anyone know how to do this with the Pcbug software. (...) The strange this is (...) (27 years ago, 9-Feb-98, to lugnet.robotics.handyboard)
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| | Re: 68hc811
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I don't remember troubles trying to reset configs on the e2's, but it's possible i never tried to disable the eeprom. have you tried using motorola's pcbug utility? fred In your message you said: (...) (27 years ago, 9-Feb-98, to lugnet.robotics.handyboard)
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| | 68hc811
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Hi, After 2 weeks of trying to reset/set the config reg. I have had no luck using any computer or software. I really need to get these chips to work and am willing to ship out to anyone who has experience in setting the conf reg. I have no other (...) (27 years ago, 8-Feb-98, to lugnet.robotics.handyboard)
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| | IR schematics
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Hello, I am currently designing an IR positioning system for our HB soccer robot project I think I have found schematics of an interesting IR beacon in Eagle format. Unfortunately I can't read Eagle schematics. Could so convert it for us in a JPG or (...) (27 years ago, 8-Feb-98, to lugnet.robotics.handyboard)
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