 | | Re: Re:68HC811E2
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-----Original Message----- From: Mike Chang <mchang@westworld.com> To: HandyBoard <handyboard@media.mit.edu> Date: Thursday, April 02, 1998 8:19 PM Subject: Re:68HC811E2 No advanage to them (i think) because u cant use the 2k eeprom with the (...) (26 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Re:68HC811E2
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Hi All, I'm curious. I've been watching all the stuff come through about using a '811E2 chip in the Handyboard. My question is: What are the advantages of this? I'm using E2's in my BotBoard from Marvin Green but I moved most of my stuff to the HB (...) (26 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Troubles with dallas memory 2.
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i have more info to that puzzle. I assembly two mother handy. One work fine , the other only download to a common memory, don't download to a dallas memory !!! I don't uderstand why if work in the common memory , don't in the backed memory? The idea (...) (26 years ago, 3-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 CONFIG Problem
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Hi Fred, thanks for the answer. Oh yes I try'd all, that is possible with the pcbug342 but without success. A very good tip comes now from Adrian Susianto about the "64 cycles" after reset (thanks Adrian). I remember, that I read about this in a (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Hall Effect
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Does any one know of a source for Hall Effect sensors? I know DigiKey sells them, but I just want to buy a few. I don't want enough stuff to get me upto the $25.00 minimum order. I have not been able to find them in Mousers catalog. Can anyone (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | New use for the HB
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Just thought I'd write a little note to everyone describing how we are using the HB. I've been working with Bloomington High School South in Bloomington, IN. About a year ago they decided to put together a Solar Bike Team to race in the SunRayce in (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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... but I tryed this already and without success. The hbdl loader says "Invalid CONFIG reg (0xFF) Try again" and when I check the eeprom area with PCBUG11, it is already there. I think, the E2 has a special protection for the CONFIG ---...--- Hello (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Trouble with a dalla memory .
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I have assembly a handyboard the last week , and somethings is wromg, and i can find what is the problem. This board have a dallas backed memory , so i dont use the battery pack. The memory can be removed and put in the place a common memory (don't (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 Can't be set
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I had the same problem with an A1, in this case it was stuck at 0x0D. hbdl would NOT set the config, but I was able to do it with dl from Win95 run in full MS-DOS mode. Even this was problematical; dl would invariably hang the computer once or (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | RE: Need help finding a A1 chip.
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Try BG Micro, 1-800-276-2206, www.bgmicro.com/ . They have/had a quantity of used A1's for $6.95. You may need to clean/straighten the pins, but so far the ones I bought work. Brett Anthony Research Technician School of Engineering and Computer (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 Can't be set
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I ran into the same problem. I was unable to set it with any of the utilities for the handyboard. I ended up using my mini-board and its download software to correctly set the register. I don't know why it worked. Andy hobbytec@cas.auracom.com (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Servos
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(...) This won't work, as the servo's require a one-shot, not a variable duty cycle type of pwm (like what comes from the motor drivers on the HB). ie. the width of any given pulse is not consistent, just the overall duty cycle. RC servo's require a (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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Thanks John, but I can't believe that, it must be a way there, to alter the CONFIG register ! Erwin (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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Hi Quinn, You are right, my CONFIG is also at 0xFF and try'd all to alter it but without success. Thanks Erwin. (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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Thanks Clancy, but I tryed this already and without success. The hbdl loader says "Invalid CONFIG reg (0xFF) Try again" and when I check the eeprom area with PCBUG11, it is already there. I think, the E2 has a special protection for the CONFIG reg. (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2 Can't be set
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No I can't believe that the config register is unchangeable, because I own a single 68hc811e2 that has a correct config, but 12 others that dont, also these are used in the miniboard pre handyboard? with a config set at 0d, if i remember my old (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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(...) My advice, don't waste your time, i spent about a year trying to figure that out and never got the config register changed to anything useful, and I also contacted motorola about 5 times and no tech person there could get it changed either. (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: 68HC811E2
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-----Original Message----- From: E. Baeck <erwin.baeck@styria.com> To: Handy Board Mailinglist <handyboard@media.mit.edu> Date: Wednesday, April 01, 1998 10:50 AM Subject: 68HC811E2 (...) sounds like my chip. Is your config Register stuck at 0xFF (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Re: Working with a different compiler
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Jaron, Does the compiler provide LCD driver for HB or you ported the code to this compiler ? -Pandit (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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| | Need help finding a A1 chip.
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Hi All, I have come across a RugWarrior board that I think has a bad uC chip. I don't want to pull the chip form my HB to test it just in case I'm wrong. (turn one working and one not into two not) My question is where can I find another 68HC11A1FN (...) (26 years ago, 2-Apr-98, to lugnet.robotics.handyboard)
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