Subject:
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Assembling the HandyBoard
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 25 Dec 1996 21:49:12 GMT
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Original-From:
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Ameen Suleman <suleman@mhv./NoSpam/net>
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Viewed:
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1539 times
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Hello all:
We got the handyboard assembly kit from Digital Micro Systems. We are
putting it together now. Everything has gone well. Thanks, the
instructions are really good.
A couple of things have not worked quite right:
1. Couldn't find the 2.2M resistor that should be put across the crystal.
However,
the dc voltage at the 6811 E pin is 2.5V as required in the test
instructions 4.3.2.
2. We assemble the Serial Line and Stop Switch (4.4).
The first part of the testing (4.4.2) went well: The BATT LED cycles on
and then off.
The PWR LED turns off when the BATT LED turns off.
3. We connected the main board to I/C board through the phone cable. The
HB
goes into bootstrap mode - we turned it on while holding down the STOP
switch.
The PWR & BATT LEDs came on for a moment and both turned off.
4. Tried downloading pcode_hb.s19, using hdbl. We got the message Wrong
port
or board mode.
Tried using dl in MS-DOS box:
Using the floppy that came with the kit:
Typed dl pcode_hb.s19 -port com2
It time out on serial receive.
Next, we used the beta version of ic and tried to dwon load the
bootstrap program.
Still - no luck - I keep getting the message:
Please press the reset button.
Should we continue and put the memory etc. on the board?
Thanks & Best Regards:
Ameen & Usman Suleman
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Message has 1 Reply:
 | | Re: Assembling the HandyBoard
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| (...) You need that resistor to stabilize the crystal frequency. Try Radio Shack if it is missing from the kit. It doesn't have to be 1/8 watt, 1/4 or 1/2 watt is fine, just make sure it is 2.2 megaohm. (...) So far so good. (...) There is probably (...) (28 years ago, 26-Dec-96, to lugnet.robotics.handyboard)
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