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Author Topic: 6Mhz and more... (Read 25869 times)

Offline ron

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Re: 6Mhz and more...
« Reply #225 on: 2018.November.03. 21:54:09 »
Dear folks !

Today, with the inestimable help of GFlorez, we have made the modification to have a Z80 running at 4 and 10 MHz.
Thanks to the ZoZo's tutorial we have managed to make it work successfully.

In this video you can see part of the process and the RetroParla event that took place today, in the first part we did everything we could and later we continued in my workshop, until I finished and left everything running.It is amazing to see the Enterprise running at 10 MHz, thank you very much for all the information from EnterpriseForever.

This was the gone ! , cheers !

https://www.youtube.com/watch?v=f2gziI9P9_c

Offline Zozosoft

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Re: 6Mhz and more...
« Reply #226 on: 2018.November.04. 13:54:47 »
Nice work! :smt038

Offline Z80System

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Re: 6Mhz and more...
« Reply #227 on: 2018.November.04. 14:03:15 »
It is much more easy to give the EP to Zozosoft ... :)

But coongratulations !
Z80 System

Offline pear

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Re: 6Mhz and more...
« Reply #228 on: 2019.March.14. 06:24:34 »
If someone would ask what is happening with the turbo card ...

In the winter there was a total downtime in electronic projects.
In the garage too cold, but the situation is slowly beginning to improve.

The first card was assembled in the full version with its own stabilizer that draws energy directly from the 9V power supply line.
Unfortunately, it is very difficult to test software because it requires a dual power supply when there outside the computer.
Memory emulators and programmators have their own + 5V power supply, which causes continuous problems with power supply starting  synchronization.
That's why I have to assembly another card in the version powered only with + 5V (it is possible only in the garage).

The only thing I managed to do during the winter season is the initial design of the adapter that can be connected instead of the LCD display and display the image directly on the monitor using the EXTC inputs. Such OSD.
Unfortunately, two PCBs together will not fit in the housing.
I would have to redesign the whole card board and design the OSD permanently on one PCB.
It's just that I already have PCBs for a plain LCD display, but maybe it's worth it to order new ?
For the price of not cutting the hole in the housing. Something for something.

Offline gflorez

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Re: 6Mhz and more...
« Reply #229 on: 2019.March.14. 10:02:49 »
I will love to try your screen version and later the OSD version.

In my tests of EXTC I had very bad display from my defective-NIck Enterprise and perfect on the other, so probably it is better to put a little screen on these computers.

Offline pear

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Re: 6Mhz and more...
« Reply #230 on: 2019.March.15. 05:53:32 »
In this case, the OSD project goes to the shelf "for later".
First, I need have to finish the "basic" version.
« Last Edit: 2019.March.15. 07:59:42 by pear »