[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
TASS - Mark IV Bug
- To: email@example.com
- Subject: TASS - Mark IV Bug
- From: firstname.lastname@example.org
- Date: Tue, 19 Aug 1997 07:41:05 -0500 (CDT)
- Old-Return-Path: <email@example.com>
- Resent-Date: Tue, 19 Aug 1997 08:41:56 -0400 (EDT)
- Resent-From: firstname.lastname@example.org
- Resent-Message-ID: <"yUXKuC.A.sFD.iRZ-z"@kani.wwa.com>
- Resent-Sender: email@example.com
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?"