Search found 29 matches

by redhawk668
Sat Apr 07, 2018 6:25 pm
Forum: STFM
Topic: C103175 REV 1 (520 STFM)
Replies: 4
Views: 568

Re: C103175 REV 1 (520 STFM)

You’re welcome :D
by redhawk668
Fri Apr 06, 2018 9:42 pm
Forum: STFM
Topic: C103175 REV 1 (520 STFM)
Replies: 4
Views: 568

Re: C103175 REV 1 (520 STFM)

This looks a lot like my C103414-001 board. It has the same IMP chipset, layout is similar only on your board the memory is through hole. On my board, the memory is also SMT. The pinout of those DRAM’s should be the same as on mine, only the package is different. On my board, we’ve removed the 256kx...
by redhawk668
Sun Apr 01, 2018 9:03 pm
Forum: HARDWARE DISCUSSIONS
Topic: PAK-68/20 - Repository
Replies: 78
Views: 3120

Re: PAK-68/20 - Repository

My PAK68/2 has the same problem on my STFM, if I activate the Blitterchip the text on the screen becomes completely unreadable. For the rest it works really stable. I suspect the buffer logic chips are too slow, they are LS types, I will replace them with F types. F types are faster. Maybe it fixes ...
by redhawk668
Sun Apr 01, 2018 3:21 pm
Forum: 8 BIT CORNER
Topic: 130XE to 320 KB.
Replies: 2
Views: 189

130XE to 320 KB.

Well, I successfully completed a 320 KB upgrade on my 130XE and now knowing that the information is very hard to find I thought why not share my experiences doing this upgrade. This upgrade is based on an upgrade by Scott Peterson with a little improvement to make ANTIC banking work again, as this u...
by redhawk668
Sat Mar 31, 2018 4:31 pm
Forum: ELECTRONICS
Topic: Parts suppliers
Replies: 7
Views: 701

Re: Parts suppliers

I’ve been using Digikey for some time now and till now not really any problems. I usually get the stuff I order. I like it, that you can make a BOM on their website, so you can order the same stuff as a kit again,
by redhawk668
Fri Mar 30, 2018 9:25 pm
Forum: ELECTRONICS
Topic: Parts suppliers
Replies: 7
Views: 701

Re: Parts suppliers

For parts: Digikey USA: http://www.digikey.com Digikey UK http://www.digikey.co.uk In my case, as I live in the Netherlands: http://www.digikey.nl I mostly order my stuff here, if I order more than €50,- the shipping is free. Only disadvantage is that I have to pay VAT when stuff arrives. They have ...
by redhawk668
Mon Mar 26, 2018 9:49 pm
Forum: HARDWARE DISCUSSIONS
Topic: PAK-68/20 - Repository
Replies: 78
Views: 3120

Re: PAK-68/20 - Repository

Something has crossed my mind, I’ve also built a TF530 board for the Amiga 500, and it is fitted on a relocator PCB, basically a PCB that is being inserted in the 68000 socket and shifting it 180 degrees so it fits in the case. If I look at my STFM, if I shift the PAK a little bit to the right and a...
by redhawk668
Sun Mar 25, 2018 9:14 pm
Forum: HARDWARE DISCUSSIONS
Topic: PAK-68/20 - Repository
Replies: 78
Views: 3120

Re: PAK-68/20 - Repository

I am thinking of a modification to the PAK68/2, as there is room for another 64 pin socket on the board I will solder an extra socket on it and place a 68000 on that. There are jumper settings for this. It should be possible to switch this with a DPDT switch, so to stay compatible the PAK can be swi...
by redhawk668
Sun Mar 25, 2018 7:01 pm
Forum: HARDWARE DISCUSSIONS
Topic: PAK-68/20 - Repository
Replies: 78
Views: 3120

Re: PAK-68/20 - Repository

Mine runs stable too, without crashes, etc. in GemBench. It does break compatibility in games and some demos don’t work anymore. The less technical stuff sitll runs, but stuff with all kinds of tricks to get more colors or opening the borders doesn’t run properly anymore. So, this machine is nice fo...
by redhawk668
Sun Mar 25, 2018 4:29 pm
Forum: HARDWARE DISCUSSIONS
Topic: PAK-68/20 - Repository
Replies: 78
Views: 3120

Re: PAK-68/20 - Repository

Ok, I've installed the PAK68/2 in my STFM. It works! I adjusted the PSU a little bit, so it gives a little more juice. My voltage dropped to 4,60 volts with the PAK68/2 in it. Only, it works without the Blitter chip. If I activate the Blitter I get all sorts of screen corruption in TOS 2.06. But at ...