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Author Topic: ZX Spectrum Emulator Card (Read 45026 times)

Online gflorez

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Re: ZX Spectrum Emulator Card
« Reply #120 on: 2017.February.01. 10:52:12 »
The chip seems to be very little on the screen, compared with other Eproms that I have seen. Then this means it is a "modern" one.

I have not it with me at this time. Later I will put here the manufacturer ID.

May be it simply is defective.

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #121 on: 2017.February.01. 11:01:47 »
May be it simply is defective.
Yes, it is also possible.

Offline pear

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Re: ZX Spectrum Emulator Card
« Reply #122 on: 2017.February.01. 12:43:25 »
Interesting.
I checked the emulator before packed it to send.
Everything was fine.
Perhaps, indeed, they treated parcel by X-rays :(

@weirdocollector: Is your emulator is working properly ? A very long time was on the way.
« Last Edit: 2017.February.01. 12:47:00 by pear »

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Re: ZX Spectrum Emulator Card
« Reply #123 on: 2017.February.01. 13:26:20 »
The chip ID manufacturer is 20 8D.


I have a possible replacement, a chip marked with a big "i" and B027C256, with ID 89 8C.

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #124 on: 2017.February.01. 14:04:55 »
The chip ID manufacturer is 20 8D.
Correct.

Quote
I have a possible replacement, a chip marked with a big "i" and B027C256, with ID 89 8C.
It is a Intel.

Online gflorez

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Re: ZX Spectrum Emulator Card
« Reply #125 on: 2017.February.01. 14:24:17 »
Ok, then it appears only as 27C256 on my programmer.

I will try it this night. I don't have the eraser here.

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Re: ZX Spectrum Emulator Card
« Reply #126 on: 2017.February.01. 22:50:00 »
The Intel Eprom works as it should be.   Problem solved.....

Offline Jungsi

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Re: ZX Spectrum Emulator Card
« Reply #127 on: 2017.March.26. 19:30:01 »
@Zozo
I'am using the SD-Card interface together with the spectrum emulator made by Pear.
When I try to load a Spectrum tap file from C: with the command :zx test.tap the emulator starts and
shows "Tap-Read-Error".
When I start the emulator with :zx and then in the emulator load "" I also can't load a file
Pear thought you might have an idea whats happening?
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Re: ZX Spectrum Emulator Card
« Reply #128 on: 2017.March.26. 22:24:30 »
I have the same error, some incompatibility with the SD-reader, as the emulator works with floppies(I can't actually test this).

My solution is to create a Ramdisk and load there the games. The Hardware emulator will work perfectly loading the games from E:.

The only problem is, you need  more memory than 128K to load on the Ramdisk more than two games.

Maybe Zozo can fix soon  the Emulator Rom.

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Re: ZX Spectrum Emulator Card
« Reply #129 on: 2017.March.27. 12:45:23 »
@gflorenz
Thanks for the info! I have the 1MB expansion in my Enterprise.
Silly question: what is the command for creating a ramdisk? :-)
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Offline geco

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Re: ZX Spectrum Emulator Card
« Reply #130 on: 2017.March.27. 13:18:57 »
@gflorenz
Thanks for the info! I have the 1MB expansion in my Enterprise.
Silly question: what is the command for creating a ramdisk? :-)
If I remember well:        :RAMDISK /n
Where n is a number of 16Kb blocks, :RAMDISK /4 will define a 64Kb RAMDISK.

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #131 on: 2017.March.27. 13:20:39 »
Yes, without /

Online gflorez

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Re: ZX Spectrum Emulator Card
« Reply #132 on: 2017.March.27. 15:27:57 »
Yes, RAMDISK N /D

Where n= number of 16KB chunks, and /D is an option to destroy a Ramdisk created previously.

17659-0
Extracted from the EXDOS manual.

I usually create a batch file, an ascii text file named something like this: NAME.BAT

Then, inside the file you can put something like this text:

:cls                                                  ;erases the screen
:echo Creating Ramdisk E:                    ;this is printed on the screen for your information
:ramdisk 2 /d                                      ;change the 2 for the number of chunks you need
:vol e: SP Ramdisk                              ;this is only if you want to name the volume
:copy F:\SPGAMES\*.* E:\                   ;this copies all the games on the previously created directory SPGAMES to E:
:E:                                                   ;this selects the Ramdisk as the current drive

Batch files can be created with WP, but to save the file you use F3, PRINT, then write the name of the file adding the .BAT tag. Press Enter and it is saved.

Every time you want to play with the emulator, previously you must type ":EXDOS NAME.BAT".

The games are copied, when finished, you only type ":ZX".

Edit: some commands corrected, sorry...
« Last Edit: 2017.March.27. 19:28:59 by gflorez »

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #133 on: 2017.March.27. 21:40:31 »
Loading from SD working for me without problems :oops: I tested about 10 games.
I tested Pear card in Bus extension card and original Bus Bridge.
Also tested :ZX game.TAP and LOAD "" then enter game.TAP modes.

Anyway I found one strange thing: the ZX mode LED are mostly ligthing (even in EP mode) or randomly blinking :shock:

Offline Zozosoft

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Re: ZX Spectrum Emulator Card
« Reply #134 on: 2017.March.27. 22:13:00 »
I have the same error, some incompatibility with the SD-reader, as the emulator works with floppies(I can't actually test this).

My solution is to create a Ramdisk and load there the games. The Hardware emulator will work perfectly loading the games from E:.
Can you upload some games which are don't run from SD (but working from RAMDISK)?