I have been having enormous amounts of trouble detecting a 1PPS signal on a 4200 (Intel x86) running Solaris 10. There is no direct serial port connection, so I am looking for a PCI board or some other alternative way of receiving this signal. I tried a serial-to-USB connection, but the USB port does not support the DCD pin (which PPS comes over on). I've also tried a Performance Technologies board, but the ioctl calls TIOCSPPS, TIOCGPPS, and TIOCGPPSEV all return invalid values. I also have a Symmetricom BC635 board which would support the 1PPS signal if they were to have a driver for Solaris 10, but none is available. I also looked into companies like Brandywine, but they don't support Solaris at all. Any suggestions?
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