Just an a side note has the errata for the RTC been fixed on the MPC855T it
is not fixed on the 860T and I believe this feature is now missing on
future MPC 866T, 857 variants.
If not it will draw several mA from your battery and discharge it very
quickly
Frank
----- Original Message -----
From: "Steven Scholz" <redacted>
To: "Linuxppc-Embedded" <redacted>
Sent: Wednesday, January 29, 2003 9:05 AM
Subject: problems with MPC8xx internal RTC !?
Hi there,
I am using an MPC855T, external clocked with 16 MHz. Using the internal
PLLs it
runs at 80MHz/40Mhz. An 32.768KHZ crystal is connected to clock the MPCs
internal RTC. A battery is there as well.
All seems to be fine. But I realized that the RTC runs too fast. It seems
to be
releated to systems restarts.
It tested. After 25 reboots the RTC is already SIX seconds ahead!!!
rdate: Wed Jan 29 10:03:58 2003
date: Wed Jan 29 10:04:04 CET 2003
hwclock: Wed Jan 29 10:04:04 2003 0.000000 seconds
Any ideas?
Thanks,
Steven
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