Blur Busters Forums

Hi, I just built the gadget and I have a problem.
I tried to flash the monitor, but I received an error message only: Can not find the device type !!

I am sure, that the gadget is built well, I checked i xx times to be sure.

I used 100Ohm rezistors and NPN BC337-40 tranzistors and as it is written, I did not use the jumper.
I have XL2420Z; I used a clean windows xp with all drivers installed on an old PC.

Do you have an idea?

Thanks.
Regards,
Herold

under the "config" tab and the communication setting area If you hit auto detect without the monitor connected does it come back ok and set the correct base address for your lpt port?

I just tried and it is change the base address, but is give an error neer to the auto button. I do not know, what is the problem. I tried it also with other computer and same fresh windows with drivers, but the same... I tried then on windows 8 notebook+docking and with the w8 compatible drivers (i googled them), but the connected "device" gadget was not recognized and I had to force the drivers, but it was not working then.

After the application starts, it has 0x03BC, after I touch the auto detect button it changes to 0x3bc and I receive an error.

What settings should I have in the bios for the LPT port? Actually I have 03bc-03be bi-directional. Is this settings OK? Should I use IRQ7?

what drivers are you talking about? I would use the oldest computer you have. check the LPT port settings in the bios(set to standard or SPP if you can) and make a note of the base address(378 probably). how exactly did you wire your device? pin 24 on my LPT port was not connected to anything and sometimes pin 25 isn't either so if you are using them for you might have a problem.

you can also try this software

http://stadi.hu/sw/lptdebug_en.html

if your device is wired correctly manipulating the 9 pin should change the 11 pin and the 17 pin should change the 15 pin.

Excellent suggestion of the software for testing parallel ports!

In my experience external adapters(tried USB and PCI one) did not work, find a PC with native LPT port

Hi, thank you for your help, it is now flashed and the strobe utility confirmed, that the monitor is now supported F**kYeah

The problem was in the bios of the PC. After I set up the base address in bios to 378 as pnum wrote, it was working well. Before I had 03BC as default there.
In this bios there is no standard or any other profile for parallel port, there are the base addresses only: 0378-037A, 03BC-03BE, all of these with IRQ or without. It is an old PC from 2002 HP Bussiness category It is interesting, that the 03BC was set as default in 3 PCs, which I tested.

so, I am confirming the firmware flash on XL2420Z Thanks guys!

Here is my gadget
100Ohm rezistors and NPN BC337-40 and a simple pin-connector in a VGA cable.

https://www.dropbox.com/s/ay8ap53wk3bij ... .28.05.jpg

Hi,

I was able to build the DIY connector but I've got some problems with the Mstar ISP Tool. Maybe you guys can help me out again.

I tried this both on an old WinXP HP PC from 2002 (I don't have admin rights on that machine though - it's not my pc and the owner has los the password ) and on my Win 8.1 PC (without parallel port, for testing purpose only - but i get the same errors).

When I started the tool, I instantly got an error: "Cannot install driver to your system! your print port will not work".
Then I tried to read/load the bin file and it says: "File size is larger than SPI device size".
When I tried to connect to the monitor I got another error: "privileged instruction" - and nothing happens.

I checked the BIOS and tried different settings (378, 3bc .. etc). Ftd2xx.dll was placed in the right folder.

I'm not sure what the problem is. I'll try to find another PC with LPT port AND admin rights but that won't be easy.

if you try to run the mstar utility on a PC without a LPT port you will get that cannot install driver error.

if you are allowed maybe use ntpasswd to change the password for the administrator account?

http://pogostick.net/~pnh/ntpasswd/

I tried it at my university on some Intel Pentium 4 WinXP computer with native LPT1 and admin rights. I set LPT to SPP and the base address to 378 in the bios, still it couldn't find the device.
The base address in the program was set to "0x378" and "0x0378".
Didn't want to leave the monitor at the university over the weekend, so they gave me some usb to lpt; are you sure it's not going to work?

For the cable I used two 100Ohm resistors and two C546B npn transistors. Those should be OK, right?
I do have some more pins connected to ground, I hope that won't matter.
Unfortunately, I am unable to run the testing program, as the download link for the kernel mode i/o driver is broken.