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Author Topic: ZX Spectrum Emulator Card (Read 39833 times)

Offline Bagpuss22

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Re: ZX Spectrum Emulator Card
« Reply #45 on: 2015.April.29. 00:13:14 »
The twins ready and tested :)
Tomorrow shipping.

As suggested by Zozo no jumper RB0.

Looking good! 

What issues does RB0 cause?  I plan to use this with an original bridge.

Russ

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #46 on: 2015.April.29. 00:18:15 »
On the original Bridge the 9V replaced by GND. At this situation the RB0 connect GND to GND. No problem if missing.
On Hungarian Bus extenders the 9V still present on the sockets, then RB0 make a short circuit if present.

Offline Bagpuss22

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Re: ZX Spectrum Emulator Card
« Reply #47 on: 2015.April.29. 09:01:55 »
On the original Bridge the 9V replaced by GND. At this situation the RB0 connect GND to GND. No problem if missing.
On Hungarian Bus extenders the 9V still present on the sockets, then RB0 make a short circuit if present.

Ok Zozo, thanks for the info.... :smt023

Online gflorez

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Re: ZX Spectrum Emulator Card
« Reply #48 on: 2015.April.29. 09:37:24 »
Where can I buy some 80 way edge connectors? I need two of them to make a bridge expansion...

Offline pear

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Re: ZX Spectrum Emulator Card
« Reply #49 on: 2015.April.29. 09:48:31 »
On eBay.
This is my proven supplier. Computer side and bridge (expensive).
Both need to crop.

Offline Bagpuss22

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Re: ZX Spectrum Emulator Card
« Reply #50 on: 2015.May.01. 00:16:34 »
I got the Emulator, and it is working, loading games from SD Card :-D

Zozo,

Are you loading Spectrum games from the SD Card?  How are you doing that?

Russ

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #51 on: 2015.May.01. 00:20:50 »
Are you loading Spectrum games from the SD Card?  How are you doing that?
:ZX game.TAP

Or when enter LOAD "" in Spectrum mode, window displayed at bottom, then enter the filename (game.TAP). EXDOS commands (DIR, CD, etc) possible with :

.TZX also possible if the game using standard ROM calls for loading.

Offline Bagpuss22

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Re: ZX Spectrum Emulator Card
« Reply #52 on: 2015.May.01. 00:23:07 »
:ZX game.TAP

Or when enter LOAD "" in Spectrum mode, window displayed at bottom, then enter the filename (game.TAP). EXDOS commands (DIR, CD, etc) possible with :

.TZX also possible if the game using standard ROM calls for loading.

Zozo,

Thanks for the info, will give that a try when mine arrives....


Offline pear

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Re: ZX Spectrum Emulator Card
« Reply #53 on: 2015.May.01. 13:43:50 »
Is to emulate ZX128 will be required changes in the circuit, whether it's just a matter of changes in the software ?

Online gflorez

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Re: ZX Spectrum Emulator Card
« Reply #54 on: 2015.May.05. 15:14:18 »
Now I got the connectors. 86 pins.

Still I don't have the flat cable. 64 leads is the max I've found. No problem, it can go splitted.

I will test drawing the 5 volts from main board.


I know it is expensive, but at least it was fast....

Offline pear

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Re: ZX Spectrum Emulator Card
« Reply #55 on: 2015.May.05. 20:12:37 »
I made a replacement of the BusBridge, but I'm still waiting for edge connectors.
Today I've reached information they are stopped by customs office. Another week of delay. :(

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Re: ZX Spectrum Emulator Card
« Reply #56 on: 2015.May.05. 21:29:57 »
Not mine,  they had come from Nebraska(USA). I ordered the 29 of March and arrived today in the morning.

Offline pear

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Re: ZX Spectrum Emulator Card
« Reply #57 on: 2015.May.06. 10:58:22 »
Is to emulate ZX128 will be required changes in the circuit, whether it's just a matter of changes in the software ?
Does the lack of an answer to my question is that it was not noticed, is that a secret ? ;)

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #58 on: 2015.May.06. 11:06:11 »
Does the lack of an answer to my question is that it was not noticed, is that a secret ? ;)
Not noticed :oops:

Need a little change, for generate NMIs for ZX128 I/O ports.

Offline pear

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Re: ZX Spectrum Emulator Card
« Reply #59 on: 2015.May.06. 11:12:44 »
All right, I understand.
You mentioned it before, and I have the appetite for more emulator in emulator ;)

EDIT:
Will be probably needed on board AY-3-8912 (?)
Dave is too much different.
« Last Edit: 2015.May.06. 13:03:29 by pear »