English Amiga Board


Go Back   English Amiga Board > Support > support.Hardware

 
 
Thread Tools
Old 31 July 2014, 17:42   #1
amigoun
Registered User
amigoun's Avatar
 
Join Date: May 2010
Location: Czech Rep
Posts: 558
Amiga and ISA SBC problem

I have soldered the two A2000 ISA slots from 8-bit to 16-bit and now I try to put a SBC there. But when I power-up the SBC BIOS complains about conflicting I/O ports (for example parallel port and unless I disable it in BIOS the SBC doesnt let me boot further). By using the same SBC on passive ISA backplate everything works fine without IO conflicts. Is there any clue?
amigoun is offline  
Old 31 July 2014, 18:01   #2
alexh
Thalion Webshrine
alexh's Avatar
 
Join Date: Jan 2004
Location: Oxford
Posts: 12,597
I thought that the ISA slots on all Amiga backplanes were isolated (i.e. not connected to the Amiga) unless you had a bridgeboard?

I would have thought that a single SBC should have been able to exist there fine without a bridgeboard.

After all, you're only using the ISA slot for power?

Someone else did just what you did

http://eab.abime.net/showthread.php?t=68952
alexh is offline  
Old 31 July 2014, 18:06   #3
amigoun
Registered User
amigoun's Avatar
 
Join Date: May 2010
Location: Czech Rep
Posts: 558
Yes Amiga ISA slots are inactive, so only power should be there.. I dont understand where those io conflicts come from. An yes, I am using only ISA to power the SBC.
amigoun is offline  
Old 31 July 2014, 19:01   #4
alexh
Thalion Webshrine
alexh's Avatar
 
Join Date: Jan 2004
Location: Oxford
Posts: 12,597
When you fitted the 16-bit connectors did you "buzz" them out with a multi-meter for shorts? Is it possible that you've accidentally bridged a solder?
alexh is offline  
Old 31 July 2014, 21:01   #5
amigoun
Registered User
amigoun's Avatar
 
Join Date: May 2010
Location: Czech Rep
Posts: 558
Yes, checked with multimeter and all ok. In fact behaves the same in A4000 too, just checked.
amigoun is offline  
 


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Adding ISA slots to A2000 for SBC amiman99 Hardware mods 26 25 October 2020 23:38
Elbox Amiga 4000 Zorro/ISA busboard CU_AMiGA support.Hardware 1 16 November 2011 21:00
Amiga and isa network cards jimgeneva support.Hardware 2 18 April 2011 12:08
For Sale: Pentium233mmx SBC keropi MarketPlace 2 25 February 2008 13:22
Help converting an 8bit ISA slot to 16bit ISA slot Smiley support.Hardware 4 25 April 2006 12:20

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +2. The time now is 18:07.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Page generated in 0.07100 seconds with 15 queries