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Topic:   Win10 Pro 64-bit, VB6 program using Comm32 version 3.20, and Prolific USB-Serial

By: MEBPosted on: Jan 13 2017 at 08:38:49 PM
I have a VB6 program using COMM32 v3.2 communicating with an Arduino over XBee via USB-XBEE converter. Works in Win7 32-bit, Win7 64-bit, and Win10 Pro 64-bit.

I have another VB6 program that uses the same COMM32 v3.2 that communicates with a Prolific USB-Serial Converter. The converter requires an older driver revision. This program runs fine in Win7 32-bit and Win7 64-bit. I have a new Win10 Pro computer that doesn't work correctly. The Prolific USB-Serial converter works fine with other Windows Apps.
Appears that something is different with COMM32 and Prolific under Win10.
I haven't looked at the VB code yet.
Any ideas?
Thanks

By: MEBPosted on: Jan 13 2017 at 10:00:40 PM
Found the issue.

My program looks at .DeviceName of existing ports, and looks for the word "Prolific" somewhere in the text string.

Windows 10 Device Manager shows the device as "Prolific USB-to-Serial Comm Port (COM7), like the other windows versions.
However in Windows 10, the .DeviceName in v3.2 returns "Communications Port (COM7)", not "Prolific USB-to-Serial Comm Port (COM7)"

Unless a newer version of the Comm32 resolves this, I'll have to rewrite the routine that detects the serial device.

By: DiegoPosted on: Apr 11 2017 at 12:27:16 PM
i' have a application in VB6 and prolific usb-rs232 converter. i`m using the trial version of scomm, and the application freeze some miliseconds after tx or rx data.
Any sugestions?
Thanks.

By: GuestPosted on: Apr 11 2017 at 12:28:04 PM
i' have a application in VB6 and prolific usb-rs232 converter. i`m using the trial version of scomm, and the application freeze some miliseconds after tx or rx data.
Any sugestions?
Thanks.

By: GuestPosted on: Apr 14 2017 at 08:17:55 AM
Look at the .OverlappedIO property.

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Topic:- Win10 Pro 64-bit, VB6 program using Comm32 version 3.20, and Prolific USB-Serial


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