Subject:
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Help Please need help badly for school
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 18 May 1999 04:18:54 GMT
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Original-From:
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meabadboy@aol=Spamcake=.com
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Viewed:
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993 times
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Hi,
I am new to this and am in need of some help ~ I have a project due in school
that requires the use of a 6811 microprocessor ~ and controlled by assembly
language ~ I have no problem with the hardware ~ the assembly langage ~ or
the understaning of the "general" layout of the handy-board.
But I am haveing a hard time location the memory location to send controls to
the outputs to control the motors ~ I found this on a site listed in a
responce to a stepper motor question ~ it explains what value to send to turn
on and to sellect the specific motor:
7 Channel 3 enable 128
6 Channel 2 enable 64
5 Channel 1 enable 32
4 Channel 0 enable 16
3 Channel 3 direction 8
2 Channel 2 direction 4
1 Channel 1 direction 2
0 Channel 0 direction 1
But please excuse my lack of knowledge ~ What memory address do I send these
values too???????
Also ~ in my project I need to access the value from a IR sensor I have
purchased ~ it returns a 0 for an object detected and an 1 for no object
detected ~ What memory location can I read this from ~ I need 2 inputs and
can minuplate them useing logical shift right or left to stripp off the
unwanted buits and do a evaluation of that bit fronm there for the 2 inputs
~ on the handy baord there is a set of headers labled 10 to 15 for digital
inputs ~ what is the memory location of these 6 inputs???
Thank You,
Lost newbee ~ lol
Steve
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