There are loads and loads of fake Prolific adapters. Does it work with their latest driver? Even if it does, it might be counterfeit. I know FTDI adapters are generally expensive, but I've had success with this cheaper one — it appears to be legit, or did when I last ordered some a while back. http://www.amazon.com/Chipset-Speed-Serial-RS-232-Converter/dp/B005S72HHO David
On Feb 23, 2016, at 4:56 PM, Tony Jones <tony@tonyjones.com> wrote:
Has anyone succeeded at using a USB->Serial adapter with their Data IO 29b?
I'm using a Prolific USB to serial adapter because the Lenovo X200s laptop I earmarked for bench use doesn't have a native serial port (not available on the docking station either).
I initially was using Windows 7 x86_64 but that required running Promlink under dosbox which was generating frame errors on the DosBox console and on the 29b display. Switching to 32bit Windows 7, I can run the patched version (standard version gives me Error 11) and it appears to open COM1 which is mapped onto the USB but I get a Frame Err 41 on the 29b and Promlink software cannot connect at 9600,N,8,1.
Unfortunately, I can't get any serial port sniffing tools such as Sysinternals Portmon or AccessPort to work, both fail with "handle is invalid" error which I'm guessing is a driver issue.
thanks!
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