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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: mbob on March 09, 2017, 06:12:55 PM

Title: 1200 PCMCIA not working with CF
Post by: mbob on March 09, 2017, 06:12:55 PM

Hi, I have 2 Amiga 1200s. One the Amigakit easyadf pcmcia works perfectly in and the other 1200 it does not show the drive. I reinstalled workbench on it fresh and reinstalled the ADAPCMCFL PCMCIA drivers disk but it still doesn't work.
 
 Does anyone have any suggestions for what to look at?

Title: Re: 1200 PCMCIA not working with CF
Post by: Pat the Cat on March 09, 2017, 06:44:37 PM

Haven't got one ever but you might try booting from the floppy rather than installing from it - I read on the website the floppy is bootable.

Just to see if it makes a difference, although I am assuming here you have a real floppy drive to boot it with.

If you have things connected to Gayle chips, like CC reset fixes, that might be it.

Or the PCMCIA port connector on one machine is damaged, or perhaps the actual Gayle chip or supporting circuitry. If you are brave enough and dextrous enough to swap Gayle chips, for testing, that might show a hardware fault. :)

Sounds like you have a problem with one A1200... Unless you are just trying to boot from the PCMCIA port on the "faulty" A1200. You can't boot from the CFC driver supported disks, unlike real PCMCIA flash disks supported by carddisk.device. That is my understanding, take with pinch of salt.

Title: Re: 1200 PCMCIA not working with CF
Post by: mbob on March 09, 2017, 07:30:00 PM

I did try booting their disk and forgot to mention it.  I'll look inside the case for any clues like bent pins tonight.

Title: Re: 1200 PCMCIA not working with CF
Post by: Djole on March 09, 2017, 08:19:53 PM

Do you have a turbo card in the not working a1200 ?

Title: Re: 1200 PCMCIA not working with CF
Post by: mbob on March 09, 2017, 08:26:09 PM

I do have an 030 card in the trap door of both but I do think they differ in brand.  I will try removing that first tonight also.

Title: Re: 1200 PCMCIA not working with CF
Post by: Djole on March 09, 2017, 08:51:40 PM

Some (early) cards with more than 4mb of ram map the ram in PCMCIA space.... so PCMCIA stops working....

Title: Re: 1200 PCMCIA not working with CF
Post by: mbob on March 09, 2017, 11:58:10 PM

Good call, I pulled the 030 and that fixed it.  Looks like a Apollo Turbo 1230LC and I'll have to research the fix.  Thanks!

Title: Re: 1200 PCMCIA not working with CF
Post by: Oldsmobile_Mike on March 10, 2017, 12:02:53 AM

Try it again with the memory module removed.  Also, check for jumpers - maybe it has a PCMCIA-friendly mode?  (would need to map memory outside of the PCMCIA address space)

Title: Re: 1200 PCMCIA not working with CF
Post by: mbob on March 10, 2017, 12:06:48 AM

Thanks Mike, looks like in this thread I may need to get a 4mb stick to replace the 8 and switch the jumper.

http://www.amiga.org/forums/showthread.php?t=59332

Title: Re: 1200 PCMCIA not working with CF
Post by: paul1981 on March 10, 2017, 08:06:36 AM

I had a RAM card with 8MB and I used to jumper it to 4MB without replacing the simm and it worked fine. So try just jumpering it first as you may not need another simm.

Title: Re: 1200 PCMCIA not working with CF
Post by: bbond007 on March 11, 2017, 01:54:48 PM

Quote from: mbob;823123

 Does anyone have any suggestions for what to look at?

Do both A1200's have 3.1 ROM?

Title: Re: 1200 PCMCIA not working with CF
Post by: mbob on March 13, 2017, 05:27:47 AM

Setting the jumper to 4gb with the 8gb simm worked, great advice thanks all!