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 Robotics / Handy Board / 5451
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Subject: 
Need Help - 68HC11E1/68HC24 and 32K external RAM
Newsgroups: 
lugnet.robotics.handyboard
Date: 
Thu, 11 Feb 1999 15:05:01 GMT
Original-From: 
Ranjit Diol <rsdiol@mich.#AvoidSpam#com>
Viewed: 
931 times
  
I have a HB w/exp brd and have just acquired a TCOMP PortMaster board
(by Ray's Tiny Racers) which I would like to use on a 'robot dispatch
base station'. Other than two PWM motor ports it has no other
accessories ( ei beeper, IR detect etc.). It uses an E1 along with the
68HC24 and 32K battery-backed external RAM. The TCOMP comes with limited
documentation. I have found little info on using the 68HC24 other than
what is in the Motorola Ref Manual ("The Pink Bible"). From what I
understand is that the 68HC24 recovers Ports B and C which were used for
addressing external memory and is transparent to software. IC does not
have any support for the TCOMP. However, I am able to use the RugWarrior
pcode to access the motor ports, porta and porte but not Ports B and C.

If any one has used the E1 with the HC24, I would truly appreciate any
help or suggestions.

Thanks,
Ranjit



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