Search found 940 matches

by Paul
Thu Jan 27, 2011 1:02 pm
Forum: Development
Topic: New ZX80 boards
Replies: 194
Views: 93069

Re: New ZX80 boards

Hi Lee, today I had a lot problems with my keyboard, specially with the row holding keys 6 to 0. I started searching why pressing a 0 would result in a 1 on the screen. I found my problem between diode 6 and diode 7 (or to be exact my soldering was the problem :oops: ). There should be no contact bu...
by Paul
Fri Dec 24, 2010 4:54 pm
Forum: Development
Topic: **NEW* ZONX AY interfaces for ZX81
Replies: 14
Views: 113685

Re: **NEW* ZONX AY interfaces for ZX81

Before it is Too Late, I like to mention that I am interested in a Kit, Not a Ready soldered Device.
Merry Christmas
Paul
by Paul
Mon Dec 13, 2010 5:02 pm
Forum: Development
Topic: ZX-MMC2 ("the ZXPand") Update log
Replies: 228
Views: 325176

Re: ZX-MMC2 Update log

Thanks for your update. Good to Know I didn't miss the release.
Cu
Paul
by Paul
Fri Nov 05, 2010 2:14 pm
Forum: Software
Topic: Useful POKEs
Replies: 8
Views: 5311

Re: Useful POKEs

If I remember this right,
for a RAND USR 836 you need to be in Fast mode
by Paul
Wed Oct 13, 2010 7:44 pm
Forum: Development
Topic: Developing new ZX81 Video Driver
Replies: 13
Views: 6365

Re: Developing new ZX81 Video Driver

Hi,
last post was quite some time ago, any news?
Is it possible to have different display sizes for differnt time for own loops?

Cheers
Paul
by Paul
Sat Oct 09, 2010 12:02 am
Forum: Development
Topic: New ZX80 boards
Replies: 194
Views: 93069

Re: New ZX80 boards

@Charlie, I like your tinyurl best :D @all well my wife is looking a horrorfilm, that gives me some time for my legacy zx80. I replaced all IC's against 74HC, and voila, my keyboard has also gone mad :? (even worse than what I have read here): only a few rows are fully functional, the right side mos...
by Paul
Thu Oct 07, 2010 8:21 am
Forum: Development
Topic: ZX-MMC2 ("the ZXPand") Update log
Replies: 228
Views: 325176

Re: ZX-MMC2 Update log

FANTASTIC!!!

My Pension Day will be somewhere around ZX80's fiftyth Birthday :shock:
so I do hope to get one a few days before that :!:
I was lucky to get a test board from Lee,
Charlie, please take me as a testuser, too 8-)
Paul
by Paul
Sun Oct 03, 2010 11:15 am
Forum: Development
Topic: ZX-MMC2 ("the ZXPand") Update log
Replies: 228
Views: 325176

Re: ZX-MMC2 Update log

Thanks a lot charlie,

can't wait for the moment when I hold one in my hands!

Please post photos of the empty and soldered board too!

Cheers Paul
by Paul
Fri Sep 17, 2010 9:15 am
Forum: Hardware
Topic: ZX80 ROM in zx81?
Replies: 7
Views: 2284

Re: ZX80 ROM in zx81?

hi all, there is a way to get a ZX80 ROM running without problem without the need of cutting the NMI line. It is taken from the german ZX-Team forum, where it was posted recently by the original user holmatic: http://forum.tlienhard.com/phpBB3/viewtopic.php?f=2&t=412 The first instruction in a ZX81 ...
by Paul
Sun Aug 29, 2010 1:30 pm
Forum: Development
Topic: New ZX80 boards
Replies: 194
Views: 93069

Re: New ZX80 boards

After his last visit, Jens found out that every line is shifted by one "Subrow" upwards with Jumper 5-6 set. You can see this quite good using the shift-S Character as all lines are used there It is the same with my board, with ZX80 and ZX81 rom. Is this the same on the other boards? @Lee, has this ...