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TASS - Mark IV Bug
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- Subject: TASS - Mark IV Bug
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- Date: Tue, 19 Aug 1997 07:41:05 -0500 (CDT)
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For some time I have been living with a bug in the Mark IV.
Sometimes it writes extra bytes into the memory. For some
time I blamed Merle's memory desigh. He designed a "fix" which
did nothing. Finally I noticed that the but occurred only at
night. A fine thing, a telescope system that works only in
I have tracked the problem down to the EPROMS that program
the scanner. Some sort of race condition. I find I can make
it work without generating extra pulses, even at night, by
shining a light on the EPROM window.
The question for you, learned colleagues, is "does shining a
light on an EPROM increase or decrease the access time?"