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USB ISA cards?

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Reply 121 of 134, by 8bitbubsy

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FreddyV wrote on 2022-07-17, 09:11:

The ALI express board ROM Does not work, there A18 and A19 @ lines are not connected.
This board is bugged...

Wouldn't that still work, though limiting you to a 128kB ROM (or so)?

386:
- CPU: 386DX-33 (no external cache)
- RAM: 4MB 70ns FPM
- VGA: Cirrus Logic GD-5424 1MB ISA
- Audio: SB Pro 2.0 + GUS classic 1MB
- ISA PS/2 mouse card + ISA USB card
- MS-DOS 6.22 + Win 3.1
- MR BIOS

Reply 123 of 134, by cyberluke

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FreddyV wrote on 2022-07-17, 09:11:
cyberluke wrote on 2022-07-17, 07:43:

For tech support, you can mail this guy directly: mj@wch.cn (or tech@wch.cn). I bought random card USB ISA from AliExpress and it just contains the WCH (CH375) chip, so then you contact the manufacturer of the chip. That's what I did. It does not matter, who made the PCB (Lotek or Ali). By default Ali don't have the BIOS EEPROM included, but you can just buy EEPROM, write it, and put into socket (that's what the jumpers are for).

The ALI express board ROM Does not work, there A18 and A19 @ lines are not connected.
This board is bugged...

So you can just solder wire and connect A18 and A19 lines, would that be correct?

Reply 125 of 134, by Lynxman

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I tried it on my (486) IBM with a Pentium 83 MHz overdrive. The speeds went from 108 W 109 R to 365 W 375 R (typically). Much appreciated. 😀

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I tried setting the % to 1 and 2 but it just locks up when I try to do anything on the card. I also tried %255 and it corrupted the USB stick and I had to reformat it. 😀

Reply 126 of 134, by FreddyV

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Lynxman wrote on 2022-10-05, 16:12:

I tried it on my (486) IBM with a Pentium 83 MHz overdrive. The speeds went from 108 W 109 R to 365 W 375 R (typically). Much appreciated. 😀
Isa-02.jpg

I tried setting the % to 1 and 2 but it just locks up when I try to do anything on the card. I also tried %255 and it corrupted the USB stick and I had to reformat it. 😀

What did you try ?

Reply 127 of 134, by Jinxter

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FreddyV wrote on 2023-01-19, 15:38:

Hi, and thanks again for the USB driver.
What is the latest version? I think the latest i have is 0.22 dated 26 and 30. june 2022. my CH375216.SYS is dated 27. oktober 2022.

Check out my YouTube channel: Retro Erik https://www.youtube.com/c/RetroErik
My collection: https://retro.hageseter.com

Reply 128 of 134, by FreddyV

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Jinxter wrote on 2023-01-19, 17:04:
FreddyV wrote on 2023-01-19, 15:38:

Hi, and thanks again for the USB driver.
What is the latest version? I think the latest i have is 0.22 dated 26 and 30. june 2022. my CH375216.SYS is dated 27. oktober 2022.

I don't remember 😀
I did not change it since lot of time.

I moved to my Picomem project, and this is much more promissing than the USB boards.
The USB boards are anyway usefull for 386/486.

Reply 129 of 134, by Sphere478

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Look what showed up in my mailbox!

What do I need to know? Never used one before.

Should I get the ROM for it? Load xt-ide on it?

Attachments

Sphere's PCB projects.
-
Sphere’s socket 5/7 cpu collection.
-
SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
-
Tyan S1564S to S1564D single to dual processor conversion (also s1563 and s1562)

Reply 130 of 134, by FreddyV

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Sphere478 wrote on Yesterday, 03:43:

Should I get the ROM for it? Load xt-ide on it?

Hi,

You can't use a ROM on it because the address lines are not decoded correctly.
I made an optimized version of the DOs Driver for this board, you can find it in this thread.

Reply 131 of 134, by Sphere478

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FreddyV wrote on Yesterday, 13:54:
Hi, […]
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Sphere478 wrote on Yesterday, 03:43:

Should I get the ROM for it? Load xt-ide on it?

Hi,

You can't use a ROM on it because the address lines are not decoded correctly.
I made an optimized version of the DOs Driver for this board, you can find it in this thread.

Is there a way to hardware hack the socket to correct the problem?

Re: USB ISA cards?
This is latest?

Sphere's PCB projects.
-
Sphere’s socket 5/7 cpu collection.
-
SUCCESSFUL K6-2+ to K6-3+ Full Cache Enable Mod
-
Tyan S1564S to S1564D single to dual processor conversion (also s1563 and s1562)