TechTools Archives: Re: Gottlieb / Q*bert scripts for the 9010A/

From: John Robertson <jrr_at_flippers.com>
Date: Wed May 08 2002 - 20:56:30 EDT

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I am unable to get the Arium ML4100 to output anything on the RS-232 port. I have tried a direct connection and a Null-Modem connection to no avail. I know that the input port is working as I can get data from the 9010 just fine with the same configuration. Anyone have a working Arium and has used the serial port successfully? 
John :-#)# 
<blockquote type=cite class=cite cite>At 08:39 PM 08/05/2002 -0400, Kev wrote: 
 
<blockquote type=cite class=cite cite>This idea doesn't work either since (look below) 
> 
>Okay, a checksum on a single byte of FF yeilds an FF 
> 
>I found this to be interesting...... 
> 
> 
>Byte 0 = F3  Sig = FE 
>Byte 1 = 3E Sig = 1EE8 
>Byte 2 = 00  Sig = 1EE8 
>Byte 3 = ED Sig = 225A 
>Byte 4 = 47  Sig = 56B6 
Byte 12 = ?? Sig =910E 
Byte 13 = 00 Sig = 20F6 
 
> 
>It isn't using the last read byte as the divisor is it? 
> 
 
>Kev 
> 
>> 
>>"Rom Signature is a four-digit HEXADECIMAL number that is a shorthand 
>>representation of the data obtained in an area of ROM memory. The ROM 
>>signature is obtained by successively dividing the data in ROM by a binary 
>>number (they DON't say what the @!$%#$@% number is! - JR). The resulting 
>>signature identifies the data from which it is obtained, and provides a 
>>convenient way of" (....blah blah, no other description of the process)."</blockquote> 
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Received on Wed May 08 20:56:30 2002

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Re: Gottlieb / Q*bert scripts for the 9010A/9100