 | | Re: GCC 2.8.1 for HC11
|
|
(...) I think I'm in the process of writing up such a document. Combined with Fred's guide to programming the 6811 (which covers the miniboard nicely), hopefully this will fill the gap. (...) And using IC libraries works well, up until you have a (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: GCC 2.8.1 for HC11
|
|
(...) You have to get good at reading schematics in this case, period. Schematics are very hard to read at first, but it does get easier quickly. If someone were to write up details on how to access various devices on the Handyboard though (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Vesit rover
|
|
Dear friends, You know that we at Vesit, Bombay were making a rover using the handy board. Learn more about it at (URL) sincerely, Nitin (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Multi-Processing
|
|
Dear Kat, Try using music.c that I had downloaded and I have sent as an attachment.This file cantains functions which play music on the piezobeeper. Yours sincerely, Nitin (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: PCB coating
|
|
First use TINNIT Bright Tin Plate No. ER18 (cheap and does the job) available at Circuit Specialists and Jameco. A better tin plate already mixed can be found at JDR Micro Devices. Then use M.G. Chemicals Conformal Coating which is a flexible (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: interactive C
|
|
Dear Stefano, Visit el.www.media.mit.edu...index.html to find about the needed software. Mostly you will be needing ic.exe and some library files. You may need a new pcode. Yours sincerely, Nitin (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | power supply questions
|
|
Hello all, I want to power the handy board using the 250watt 12V 9amp power supply of a PC. Any suggestions as to what I should take into consideration before attempting this. A buffer? A fuse? A straight hook up? Why is the HB not supposed to be (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: GCC 2.8.1 for HC11
|
|
(...) My favorite 68HC11 text resource is: 68HC11 Microcontroller by Joseph D. Greenfield Amazon Price: $87.50 (Wow! I'm sure I didn't spend nearly this much when I bought mine 3 years ago...) The sections on using the 68HC11 timers for interrupts, (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Increasing current output to motors on HandyBoard
|
|
I wonder if this would last since a relay is mechanical and I would assume that it would wear with all that "switching". Doe anyone have any experience with this? Thanks. ---...--- ericson mar Robotics Consultant mar@cooper.edu (212)353-4356 (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re : -> Interactive C
|
|
You help has been really useful, i'm going to visit thi slink immediately! Stefano Falconetti (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: interactive C
|
|
I'll follow your suggest, thanks for the time you gave me. It has been very useful! Stefano ---...--- (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Increasing current output to motors on HandyBoard
|
|
Another solution to this which is easier but more expensive is to use the output of the motor driver chip to drive solid state relays. You need the relays that use 5 volts for control and that will switch DC. The relays I use have flyback diodes in (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Increasing current output to motors on HandyBoard
|
|
(...) Stacking the chips is doable but you will toast them when you get near their current limit. An easier solution is to use the TI chips to drive power transistors that are acting as voltage followers. This lets them take the current. (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Increasing current output to motors on HandyBoard
|
|
I am looking to drive a radioshack motor off my HB. Its rated at 9V - 18V. It claims that at maximum efficiency it will draw 1.98 Amps. My HB uses the TI sn754410ne motor controller and is rated only up to 1 amp. If i replace this unit with a L293b (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: Sensor Question
|
|
(...) I use both and infrared ranging sensor and sonar. I have them both mounted on rotating bases. If you plan to do some serious work with your application, then you might find this approach a little difficult. The reason is that if your robot is (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Sensor Question
|
|
Hi, Just a quick question...What would be most effective ? An array of sensors (IR or sonar), or a single sensor on a continuously rotating base (assume 1 rotation every 2 secs...) ? Could someone here explain me the main functional differences of (...) (25 years ago, 9-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: GCC 2.8.1 for HC11
|
|
The problem I have isn't programming the HC11. I picked that up with no problem by spending a day reading Motorola's reference manual (AKA the pink book - kindly provide free by Motorola via their web page). I've got a software background, and while (...) (25 years ago, 8-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: GCC 2.8.1 for HC11
|
|
(...) I've been through Charles Hacker's Buffalo monitor code, the Miniboard GCC & ICC libraries, the Handyboard ICC libraries, and a few other sources, and looked at the schematics and data books a lot. That's the best way to get intimately (...) (25 years ago, 8-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Re: GCC 2.8.1 for HC11
|
|
Keith, I have a reference for you. It is "Microcomputer Engineering," 2nd ed. by Gene H. Miller. You can get it from one of the online book sellers, like amazon.com. It is around $85 or so. In this text is the whole range of things having to do with (...) (25 years ago, 8-Apr-99, to lugnet.robotics.handyboard)
|
| |
| | Multi-Processing
|
|
Hello all- I am using my Handy Board on a robot. My team and and I thought it would be really cool if we could get it to play music while it is moving. Is there a way to do this? In my testing it seems that it only does one or the other. If anyone (...) (25 years ago, 8-Apr-99, to lugnet.robotics.handyboard)
|
