Hello all,
I have a Startech.com PCIe RS 232 Serial adapter card (PEX2S553). When using this card on a 32-bit Windows XP machine I can read and write data with no issue. (2.3 MB at 300 bytes per second. No read or write fails.) When I install this card on any Windows 7 64-bit machine it will run for anywhere from 30 seconds to 2 minutes and then the write will time out. Solutions tried so far with the same results:
2 different Windows 7 machines
Verified the 6- bit drivers were installed.
Vairous baud rates (38400 default)
Various time in between writes (3 bytes at 100Hz typical)
Various timeouts (15ms up to 150 ms)
What I don't have is a 32-bit Windows 7 machine to try this card out on so I am have trouble deciding exactly what the issue may be. Has anyone else seen similar issue with Startech products?