Search found 208 matches

by Silvester
Fri Dec 07, 2018 2:37 pm
Forum: Hardware
Topic: Q68 speed vs 680X0
Replies: 40
Views: 5074

Re: Q68 speed vs 680X0

After blowing the dust of my Q40 I tried the benchmark program and got 54 seconds, which sounds OK for 40MHz 68040 against Peter's 80MHz 68060. That was with CACHE_ON, with CACHE_OFF it was 167 seconds! That doesn't compare well with benchmark on my SGC: 176 seconds with CACHE_ON (212 with CACHE_OFF...
by Silvester
Fri Aug 17, 2018 11:22 am
Forum: Software & Programming
Topic: QD 2018
Replies: 4
Views: 948

Re: QD 2018

Great!

I never got around to updating from QD98 !
by Silvester
Fri Aug 17, 2018 11:16 am
Forum: Hardware
Topic: Issue 6 board updates
Replies: 17
Views: 2642

Re: Issue 6 board updates

Was I :)

I'll need to brush up on Xcircuit to do the mods. My blank issue 6 PCB also confirms ZX8302 data bus same as CPU.

Please let me know any other requested changes.

BTW Xcircuit raw data file is Postscript (attached)
by Silvester
Tue May 08, 2018 1:57 pm
Forum: Hardware
Topic: Miracle Hard Drive problem (Hard Disk Replace)
Replies: 43
Views: 8415

Re: Miracle Hard Drive problem (Hard Disk Replace)

I've find another Miniscribe drive that is EQUAL to the original one that is on the Winny, we can try with this one. Then hopefully it should just work :-) Don't understand well what I have to do with this program: it can help me to format the drive or you have to patch and send me a new rom for le...
by Silvester
Mon Apr 30, 2018 12:27 pm
Forum: Hardware
Topic: Miracle Hard Drive problem (Hard Disk Replace)
Replies: 43
Views: 8415

Re: Miracle Hard Drive problem (Hard Disk Replace)

I guess this might be too late now, however... The problem might be that the drive ID is not recognised and the default parameters used for a 40M drive fails the FORMAT. Try running attached program which will tell you identity of drive attached to MHD. If you can get your drive statistics (as per t...
by Silvester
Mon Apr 09, 2018 11:38 am
Forum: Hardware
Topic: QL Eprom programmer
Replies: 28
Views: 4779

Re: QL Eprom programmer

janbredenbeek wrote:I have uploaded the schematics, binary and source of my QL EPROMmer to GitHub, it's at https://github.com/SinclairQL/EPROMmer.

Have fun,

Jan.

Thanks!
by Silvester
Mon Apr 09, 2018 11:37 am
Forum: Hardware
Topic: Miracle Hard Drive problem (Hard Disk Replace)
Replies: 43
Views: 8415

Re: Winny problem

If I want to replace the internal hard drive which model I need? I see that the Winny mount a 3,5" Hard Drive and not a 5,25" as I suppose (not the ST-506/ST-412). I need to repair another one that I found. Thanks a lot. Best regards. Miracle hard drive supports four different drive types...
by Silvester
Tue Apr 03, 2018 10:53 am
Forum: Hardware
Topic: QL Eprom programmer
Replies: 28
Views: 4779

Re: QL Eprom programmer

Hi, The Elektor Gal Programmer was featured in Elektor 1992 May, with updates in Elektor 1993 June, featuring the Amiga AmiBURN and AmiGAL software. The programmer looks to be connected to the parallel port on a PC and Amiga. I am sure the Amiga people will have a copy of the software. Ah yes, I di...
by Silvester
Tue Apr 03, 2018 9:31 am
Forum: Hardware
Topic: QL Eprom programmer
Replies: 28
Views: 4779

Re: QL Eprom programmer

I've got schematics, layout, code etc. for Jochen Hassler's QL Eprommer II (the one shown at the bottom of my post here https://www.kilgus.net/2017/03/05/german-minerva-rom/ ). It can do GALS using adapter boards and had a pretty PE GUI. BBQL only of course. If there's enough interest I can dig the...
by Silvester
Sat Feb 17, 2018 9:15 am
Forum: Hardware
Topic: Maximum effective BAUD with superHermes and unexpanded QL
Replies: 9
Views: 1845

Re: Maximum effective BAUD with superHermes and unexpanded QL

Look at Minerva/Hermes documentation, it is the suggested fix to improve rate. IIRC the problem is the default action (POKE!!53,192) causes unnecessary repeat polling of IPC after it had just taken data (see source). update: Minerva source (M_inc_pc extract) relevant to the problem which causes disk...