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Question

Seriously need some driver help

by Apr 30, 2018 4:52PM PDT

Have a DSP GUI that woked fine on my 4yr old Dell 4750 w/w-7 that was upgraded to W-10 as soon as I bought it. Got a some sort of virus a few months ago and computer shop dumped everything and loaded a brand new w-10. Now the program won't work. It opens to RS232 Error. It uses CH340 drivers and they show as working fine in Device Manager. Dumped the program and reloaded several times. No luck. Got a full CH340 driver set from outside and installed that. Didn't help. Tried all this on a brand new HP Spectre with the same results. It's a low res GUI so I bought a cheap laptop just for the program and that has exactly the same problem. Oh, and I came off the internet and shut down all virus/malware/firewall protection during all of this
Any ideas out there?

Discussion is locked

5 Posts
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Clarification Request
I've yet to see a "RS232" error screen.
by r. proffitt Forum moderator Apr 30, 2018 5:13PM PDT

But for Dell I head back to Dell.com for drivers. The 4750 on google finds this may be a port replicator and some did have RS232 ports. The drivers for a port replicator can be onerous to install.

Are you sure the 4750 is a laptop?

Supply product links at dell.com please.

Post was last edited on April 30, 2018 5:17 PM PDT

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Driver help
by RedSu12er Apr 30, 2018 6:56PM PDT

Thank you for the input.
When the program opens it does a USB Check. It's the program that gives the error massage not windows. A new program from them that useing the same drivers gives "no USB device found" even though I can see the drivers in Manager.
I'll check Dell.com but i have the same results with two HP computers.

Thanks,
John

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Sorry but I was unclear.
by r. proffitt Forum moderator Apr 30, 2018 7:07PM PDT

The 4750 on google finds some dock thing. By Dell so Dell would be hit for drivers for your OS. It won't matter if the host is HP or another. Can you supply a product link for this thing?

As to RS232, I'm very well versed in that as I write apps that use that via USB RS232 adapters on PCs and other devices.

But I am still unsure what you have here.

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Dyslexia
by RedSu12er Apr 30, 2018 9:20PM PDT

I'm sorry, it's an E7450. but it was wiped clean and a new w-10 was installed. The others are HP Spectre X360 and a Pavilion 13" Same issue with all of them. Everything Looks OK and everything says it working fine but in Driver > property > Events, all the relavant things are listed as happening (I think) but in information I get: Device USB\VID_1A86&PID_7523\5&2873ceed&0&1 requires further installation.

Yet at the end it always says "Driver installed successfully".

I am wondering is the latest windows version is missing something the earlier w-10 had, that let the driver work correctly. ??

I'v been working with DSP GUIs since 2004 and have never run into this...but they all used FTDI drivers

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Answer
So is there some Arduino work here?
by Forum moderator May 1, 2018 8:44AM PDT
https://www.google.com/search?q=CH340+drivers finds you might be working with Arduino which I have a nearby similar use case.

Time to introduce myself it seems. I'm an older electronics engineer with works that include many processors including the Ti DSPs, Motorola DSP and CPUs and the list is too long today. As time went on I did more and more code so I get to deal with developer kit issues over and over.

For CH340 issues I would be on the Arduino forums as well as:
https://www.google.com/search?q=arduino+ch340+driver+windows+10+rs232+error

It appears there are prior issues and fixes out there. So to me this is not a Dell issue at all.

-> SORRY! I was under the impression you had the 4750 DOCK from Dell but now with the correct Dell model and looking for just ch340 information I think my guess is that you are trying to do some Arduino work. This guess is also because of your DSP comment.
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