lkml.org 
[lkml]   [1998]   [Aug]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectDCF77 driver available
Hi,

I just wrote a small driver (actually just a line in do_timer() and a
new entry to the procfs) for my selfmade DCF77 receiver (DCF77 is the
official German time signal broacast at 77.5kHz).

My hardware is very simple and cheap; it just demodulates the signal and
feeds it to a joystick button input. The joystick button register is
sampled with each timer tick and written to a ringbuffer. The buffer is
examined and converted to readable output just like that of "date" each
time /proc/dcf77 is read. I use this to set the time using "date"
(funnily date is stupid enough not to understand its own output as
input).

If anyone's interested I could provide both hardware and software
documentation.

Maxi

--------------------------------------------------------------
Maximilian Rixius maxi@parsytec.de
parsytec Gmbh private: maxl@pinguin.oche.de

I'm the fellow throwing peas into the air
--------------------------------------------------------------

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html

\
 
 \ /
  Last update: 2005-03-22 13:43    [W:0.074 / U:1.092 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site