25 May
2004
25 May
'04
10:06 a.m.
In message 20040525011243.40738.qmail@web15212.mail.bjs.yahoo.com you wrote:
When setting "#define CONFIG_RTC_MPC8xx" ,how could I do in my hardware scheme to make it really work?I mean what kind of battery(Capacity and Type) and how to connect it with 8xx?Someone said HW must monitor the
This is a hardware design question and far beyond the topics of this mailing list. I'm pretty sure you can find some refernce design on the Motorola web pages.
power status and before power failed SW could set 8xx into powerdown mode for keeping 8xx RTC still work with battery.Is this so?
See the MPC8xx User's Manual, section "Clocks and Power Control".
Best regards,
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd@denx.de
God grant me the senility to accept the things I cannot change, The
frustration to try to change things I cannot affect, and the wisdom
to tell the difference.