Messages in this thread |  | | Date | Thu, 26 Sep 96 11:26:40 EDT | From | Mills@huey ... | Subject | Re: xntp3-5.8x and Linux |
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Guys,
The latency in the timer interrupt with Linux shouldn't be any more a problem than with other systems. In any case, the PLL is not driven directly by that signal. The important thing is that the timex.h structure be compatible with the strucure used by the daemon; in particular, the PPS variables. I suspect the kernel PPS mods are implmented, but with no routine to call hardpps() at DCD transition. In which case just use the structure defined in the kernel.tar distribution and get on with life. The code will be a stub until somebody notches the serial driver to snatch an interrupt when the DCD line wiggles. This is in fact exactly the case now with Digital Unix 4.0 for the Alpha.
Dave
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