A540 CPU clock problem

Article View: comp.sys.acorn.tech

Article #732

Back to comp.sys.acorn.tech Previous Next

#732

From: Matthias Sattler
Date: Thu, 21 Jan 1993 13:17

15 lines
1011 bytes

Hi

Thank you for your friendly mails, but I still have problems using a higher
cpu clock frequency in my A540. I've tried the things you told me and I've
upgraded to RO 3.1 but its still the same problem.
The selftest seems to be ok, but after that the screen stays black.
I think that maybe dma configuration goes wrong, but I'm not sure.
What can I do? I'm sure that my cpu can do 35 MHz or even more ?
Can I configure the A540 so that it takes some default values for dma?
By the may, my ram runs fine at 16.66 MHz.


Matthias Sattler

email: m_sattle@informatik.uni-kl.de

Technical Details

Message-ID: <1993Jan21.141732@informatik.uni-kl.de>

Path:

arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!sol.ctr.columbia.edu!ira.uka.de!rz.uni-karlsruhe.de!stepsun.uni-kl.de!m_sattle

Show Full Headers

Complete Article Headers

Newsgroups: comp.sys.acorn.tech
Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!sol.ctr.columbia.edu!ira.uka.de!rz.uni-karlsruhe.de!stepsun.uni-kl.de!m_sattle
From: m_sattle@informatik.uni-kl.de (Matthias Sattler)
Subject: A540 CPU clock problem
Message-ID: <1993Jan21.141732@informatik.uni-kl.de>
Sender: news@rhrk.uni-kl.de
Organization: University of Kaiserslautern, Germany
Date: Thu, 21 Jan 1993 13:17:32 GMT
Lines: 17