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- From: apel@physik.uni-kl.de (Martin Apel (SAGA))
- Subject: Re: 2.0 UNIT_MICROHZ timer questions...
- Message-ID: <1993Jan5.110742.11479@rhrk.uni-kl.de>
- Sender: news@rhrk.uni-kl.de
- Organization: University of Kaiserslautern, Germany
- References: <93003.144651LEEK@QUCDN.QueensU.CA>
- Date: Tue, 5 Jan 1993 11:07:42 GMT
- Lines: 23
-
- LEEK@QUCDN.QueensU.CA () writes:
- : I am having some timing problems with the GAL programmer I designed and
- : built. The programmer works fine under 1.3 and only 25% of the chips get
- : programmed properly under 2.04. I can only assume that timing problems
- : are ones to blame.
- :
- : The hardware runs on the parallel port. I opened the parallel.device
- : from the OS before poking the 8250 registers.
-
- It would be much better to open the misc.resource for the PARALLEL_PORT
- and PARALLEL_BITS (Take a look into resources/misc.h). Otherwise
- initialization of the parallel.device might interfere with your writing
- to the 8520 registers.
- --
- Reachable as: I do hate sums. There is no greater
- apel@gypsy.physik.uni-kl.de mistake than to call arithmetic an
- (Martin Apel) exact science. There are .. hidden
- laws of number which it requires a
- mind like mine to perceive. For
- instance, if you add a sum from the
- bottom up, and then again from the
- top down, the result is always
- different.
-