diff options
Diffstat (limited to 'c/src/libchip/rtc/STATUS')
| -rw-r--r-- | c/src/libchip/rtc/STATUS | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/c/src/libchip/rtc/STATUS b/c/src/libchip/rtc/STATUS new file mode 100644 index 0000000000..9d08b4f58e --- /dev/null +++ b/c/src/libchip/rtc/STATUS @@ -0,0 +1,37 @@ +# +# $Id$ +# + +General +======= + ++ It would be nice to utilize the interrupt capabilities of some + RTC parts. This could be used to trigger checking the software + clock against the hardware clock. + ++ The periodic capability of most RTCs is not suitable for use + as a general purpose flexible clock tick source. For example, + many RTCs generate only a handful of periods with 100 Hz being the + most frequent. + ++ The tick field is not set on get. Anything smaller than a second + is ignored on set and get operations. + ++ Day of week is ignored since RTEMS does not set it internally. + ++ There is no attempt in RTEMS to know about time zones. + +Harris ICM7170 +============== + ++ Untested. + ++ Interrupt capabilities are ignored. + +Mostek 48T08 +============ + ++ Untested. + ++ NVRAM is ignored. + |