 | | Re: downloading the pcode during assembly
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(...) I have checked my serial charger board with hyper terminal. It is working perfectly. I have checked also the connections between the charger board and the HC11 and they are ok. (...) I have checked every wire connection between the HC11 and (...) (23 years ago, 13-Jan-01, to lugnet.robotics.handyboard)
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| | battery charging monitoring
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I have designed a simple lead acid charger for 12 V batteries and i am looking for a software program for 68hc11 microprocessor in order to monitor certain charging characteristics ( voltage, current, temperature). Thank you. (23 years ago, 12-Jan-01, to lugnet.robotics.handyboard)
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| | Sonar/Compass together on HandyBoard Expansion
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Has anyone tried interfacing a PNI Compass to a Handyboard expansion board w/sonar? Can anyone share the info? (23 years ago, 12-Jan-01, to lugnet.robotics.handyboard)
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| | Re: downloading the pcode during assembly
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The HB is supposed to be in special test mode, see (URL) . Re your downloading problems, first, see the debug info at (URL) the Windows serial debug test there, make sure that the serial signals are getting from the HB's RJ11 connector to the 68HC11 (...) (23 years ago, 12-Jan-01, to lugnet.robotics.handyboard)
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| | downloading the pcode during assembly
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hi, I am during the assembly phase where I am supposed to be able to download the pcode to the handy board. I've placed on my handyboard a UM62256A-10L as RAM a MC47HC132N and a PICVUE 16x2 LCD PVC160203P All the test from the handyboard assembly (...) (23 years ago, 12-Nov-00, to lugnet.robotics.handyboard)
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| | Re: Encoder Implemenation questions
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(...) I would suggest shutting it down early (say 5 ticks early) and using a "jog" mode whereby brief pulses are sent to the motor to move it the remaining distance. Lets say you shut it off at 19 (targeting 24) and the motor/load's momentum carries (...) (23 years ago, 12-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Encoder Implemenation questions
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(...) Actually I was simplifying too much here. My goal is to be able to execute a relatively accurate 90 deg. turn to "round the curve" in a narrow hallway and to be able to spin on axis (robot is circular) a full 180 so I actually can count on (...) (23 years ago, 11-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Encoder Implemenation questions
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(...) No, your conclusion is too broad, simply stated if you don't monitor motor current (and to some extent model the inertia of the motor) in software, then your damping algorithm (which is effectively a constant based on your description) won't (...) (23 years ago, 11-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Encoder Implemenation questions
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(...) It certainly helps. I guess I'll stick to my kludge... it's easier. ;) So in order to do effective rotation sensors I need to monitor not only the rotations, but the power applied to the motor as well? That seems fairly complex but I guess (...) (23 years ago, 11-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Encoder Implemenation questions
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You step into the morass that separates reality from theory :-) The "right" way to do this is to measure the current on the servos, ramp their accelleration up and then down again as you approach your final endpoint. Read up on feedback systems and (...) (23 years ago, 11-Jan-01, to lugnet.robotics.handyboard)
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| | Encoder Implemenation questions
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I have contructed a robot that I want to be able to move and position itself accurately. I have encoders (the Hamamatsu P5587) attached to analog inputs 4 & 5 using sencdr4 & 5. I have 24 segment encoders that should give me a resolution of about (...) (23 years ago, 11-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Basic assembler and downloader question
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That did the trick. Thanks for helping me out with something so basic. I guess that I am next going to read up a little further on how the HandyBoard is using the special mode variations of the Motorola chip while still being able to access the (...) (23 years ago, 10-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Basic assembler and downloader question
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OK, I didn't see the following before. The HB has its reset vector at $BFFE. So the second ORG must be there, not at $FFFE. Please see (URL) more info. Fred In your message you said: (...) , (...) is (...) ot (...) (23 years ago, 9-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Basic assembler and downloader question
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I tried using dl.exe and the download appeared to work. However, the LED still did not turn on. Is something wrong with my code? Perhaps the RAM is not accessible at this point as the chip is in bootstrap mode? Again here is the listing (with the (...) (23 years ago, 9-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Basic assembler and downloader question
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(...) The first thing that occurs to me is this: are you sure that $8000 is a valid ROM/EPROM/EEPROM address? I would suspect that is the problem. I'm taking an educated guess though, since I'm not familliar with the software you are testing it (...) (23 years ago, 9-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Basic assembler and downloader question
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Brian Try using dl.exe rather than dlm.exe Also, put a line LOOP BRA LOOP after you store the value in the Port A. otherwise the 6811 will happily execute whatever's next in memory. Fred In your message you said: (...) . (...) (23 years ago, 8-Jan-01, to lugnet.robotics.handyboard)
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| | Basic assembler and downloader question
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Hello All, I recently completed assembly of my Handyboard and now I'm excited to be moving into the coding realm (which is more my area). I was able to get Interactive C to communicate with the board. However, given my nature of wanting to (...) (23 years ago, 8-Jan-01, to lugnet.robotics.handyboard)
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| | Re: Rug Warrior with Interactive C
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(...) You'll find the necessary files here : (URL) is the file serialio.c . In this file there is a function called disable_pcode_serial (). This does (who wonders) disable the pcode download mode on the Handy (even 6.270) board. Now you can use the (...) (23 years ago, 7-Jan-01, to lugnet.robotics.handyboard)
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| | Rug Warrior with Interactive C
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I am working the the Rug Warrior platform running IC. I want to implement learning algorithms and then "upload" the learning parameters to my host computer. I need this both to debug the algorithms and also store the current learning state of the (...) (23 years ago, 7-Jan-01, to lugnet.robotics.handyboard)
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| | Re: ICC11 Compiler for the handyboard
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(...) You should have the latest files for the Handyboard library on the disks you got from ImageCraft when you bought ICC11. However, if you are trying to use the "free" version of ICC11 then you need to be aware that the library does _not_ work (...) (23 years ago, 5-Jan-01, to lugnet.robotics.handyboard)
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