The Sinclair QL Forum

Err, sorry about the rather late reply :oops: Yes, it has a SchÖn keyboard. Keyboard s.JPG The keyboard has a sticker on the PCB that says "Keyboard Products Ltd. Made in England. Part No. AS0720-1. Serial No. 700965." I now also have a standard QL as well :D The one with a SchÖn keyboard ...

Aye, I was logged in. I have even tried logging out and logging back in.
All of the other sub-forums that have recent posts show up, but not recent posts in the Hardware sub-forum

Mark

Okay, so I am confused

Posts in the "Hardware" section do not show up in the "View active topics" list of posts...
Is it me, or a forum "feature"

Mark

Looking at the issue 5 schematic, for the keyboard matrix you need 8 output lines and 8 input lines (yes there are more on a real keyboard, but these are duplicates). As long as the existing QL keyboard and joysticks are disconnected, from a hardware point of view, it should be straightforward ;) Ma...

This is one of those things that is easier said than done :? If you only want to connect to the existing keyboard matrix lines, you need to detect (read) the scan lines (output lines from QL to keyboard), use this info to decide what, if any keyboard input (input lines from keyboard to QL) need to c...

Hi QLObi

This looks very interesting. I have read through your document.

I'm currently working on other projects, so do not have time at the moment, but if/when I find the time, I may well have a go at making one of these.

So thank you for posting it

Mark

Some great information in this thread. Thank you. Some other 68k CPU systems use a shadow (or part shadow) of the ROM at CPU address 0 and address 4. After reset, the CPU reads the ROM at address 0 and address 4, then the logic disables the shadow of the ROM at these addresses and maps RAM there ins...

Also test the supply voltage that feeds the MC1377P

Mark

What is the maximum number of drives that are supported?
If the answer is more than two then it must use a Shugart interface.

Mark

Oh go on then... Happy Christmas, and a Merry New Year to all QL users everywhere!

Mark