The Sinclair QL Forum

Hi, I also would like to have one, is that possible?

Hi,

Could I be put on the list as well. Received one the other day and it works great, another would be useful.

Thanks

last batch ,

pcb ready for assembly ,

cases ready for assembled pcb's

now to wait for the components to arrive ...................

As many people asked me if this ql2vga would work with a spectrum 128 ,

Yes it does , but in terrible quality because of un-adapted timing .

here are some screen shots ;


As you can see , it is visible but not as crystal clear as when used with a ql .

Maybe the programmer of the firmware can adapt it for use with the 128 ........

last batch finished !!

i will sent each of you a pm regarding the payments.

techy wrote: ↑Sat Dec 23, 2023 6:17 pm As many people asked me if this ql2vga would work with a spectrum 128 ,

here are some screen shots ;


m_IMG_5500a.jpg

m_IMG_5499a.jpg


As you can see , it is visible but not as crystal clear as when used with a ql .

Maybe the programmer of the firmware can adapt it for use with the 128 ........

Those of us who already have it, can we update it somehow so that it can also be used on spectrum 128?

As i am not the programmer of the firmware i can not change anything .

I know the amstrad version and the original sinclair version don't have the same video output , which then needs to be adapted separately.


if a new firmware will be available , i assume the best option is to get a second unit for the 128 .

I was able to pick up the ql2vga sent to me by @techy to Germany last week - works flawless, great job!
Many thanks & Happy New Year to all!

I got some info regarding the adaptation for a spectrum 128 .

Kindly shared by the designer holmatic .

The problem with the spectrum 128 and the newer amstrad versions , is the presence of an extra brightness signal ( only 3 level ) = only 2 level !! = .

This signal is not implemented in the ql2vga hardware .

The ql2vga software should be able to handle this as part of its design , a reprogramming is then needed .
But a three level hardware detection must be developed to get that signal .


So , not for now .

This is how a sinclair toastracks screen looks without the brightness implemented ( 640x480 only ). ;

so ,

i can program a "ql2vga" with the 128 firmware ( 640x480 without brightness )


If anyone is interested please let me know .