Need info: Hardware mod for Sys-Reset

Thread View: net.micro.atari8

2 messages

[T] Back to Threads [V] Tree View [G] Group Articles

2 total messages Started by Warren Long Mon, 10 Mar 1986 16:51

#45

Author: Warren Long
Date: Mon, 10 Mar 1986 16:51

25 lines
1339 bytes


I am the proud new owner of a 512k board for my Atari 800.
I must confess that about the only way to use this memory is
as a Ramdisk, and I do have the program to do this.  

The problem??
   If/When the thing locks up on me and will not respond to
System-Reset, the only thing I can do is to reboot, and lose
everything.  I would like one more avenue to try, that of the
wiring in a button to a 'hard' reset, that is, reset the
microprocessor.  Once upon a time there were articles on how
to do it.  (a wire, a switch, and a pull-up/pull-down resistor)
Anybody remember how to do it??

Part 2:
   Will this solve my problem, or will a hard reset to the
microprocessor reboot the whole machine anyways??


		      Thanks,

			   Warren Long
			   University of Saskatchewan
			   Canada

Re: Need info: Hardware mod for Sys-Reset

#63

Author: C. David Young
Date: Fri, 14 Mar 1986 00:45

13 lines
1061 bytes

If you will give me your mail address I will send you a sheet
describing the coldstart mod. However, it will not do you much good unless
you have an 8K OMNIMON in the system to take control after resetting the
CPU. Also, I have not had much luck in preserving the contents of the
ramdisk when the CPU locks up. I think the RAM must lose the refresh
when the CPU locks up.

David Young



 
-------

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads