diff options
Diffstat (limited to 'contrib/ntp/html/kernpps.htm')
| -rw-r--r-- | contrib/ntp/html/kernpps.htm | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/contrib/ntp/html/kernpps.htm b/contrib/ntp/html/kernpps.htm new file mode 100644 index 0000000..fe003f7 --- /dev/null +++ b/contrib/ntp/html/kernpps.htm @@ -0,0 +1,26 @@ +<html><head><title> +A Kernel Programming Interface for Precision Time Signals +Network Performance Evaluation +</title></head><body><h3> +A Kernel Programming Interface for Precision Time Signals +</h3><hr> + +<p>The technical memorandum: <cite>A Kernel Programming Interface for +Precision Time Signals</cite><a +href="http://www.eecis.udel.edu/~mills/database/memos/memo96c.ps"> +(PostScript) </a> describes a proposed programming interface for +external precision time signals, such as the pulse-per-second (PPS) +signal generated by some radio clocks and cesium oscillators. + +<p>The memorandum argues for a generic capability in the ubiquitous Unix +kernel, which could be used for a wide variety of measurement +applications, including network time synchronization and experiments +involving performance measurement and evaluation of computer networks +and transmission systems. The hardware to do this requires only a serial +port and a modem control lead, such as the data carrier detect (DCD) +lead, which can be driven by an external source via a level +converter/pulse generator. + +<hr><a href=index.htm><img align=left src=pic/home.gif></a><address><a +href=mailto:mills@udel.edu> David L. Mills <mills@udel.edu></a> +</address></a></body></html> |
