source: rtems/c/src/libchip/rtc/STATUS @ f010a5e

4.104.114.84.9
Last change on this file since f010a5e was d9bc023a, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 30, 1998 at 9:30:46 PM

Updated.

  • Property mode set to 100644
File size: 801 bytes
Line 
1#
2#  $Id$
3#
4
5General
6=======
7
8+ It would be nice to utilize the interrupt capabilities of some
9  RTC parts.  This could be used to trigger checking the software
10  clock against the hardware clock.
11
12+ The periodic capability of most RTCs is not suitable for use
13  as a general purpose flexible clock tick source.  For example,
14  many RTCs generate only a handful of periods with 100 Hz being the
15  most frequent.
16
17+ The tick field is not set on get.  Anything smaller than a second
18  is ignored on set and get operations.
19
20+ Day of week is ignored since RTEMS does not set it internally.
21
22+ There is no attempt in RTEMS to know about time zones.
23
24Harris ICM7170
25==============
26
27+ Tested on a DMV177.
28
29+ Interrupt capabilities are ignored.
30
31Mostek 48T08
32============
33
34+ Untested.
35
36+ NVRAM is ignored.
37
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