RTC: Difference between revisions
Jump to navigation
Jump to search
| [unchecked revision] | [unchecked revision] |
Content added Content deleted
No edit summary |
No edit summary |
||
| Line 6: | Line 6: | ||
====Programming it==== |
====Programming it==== |
||
The RTC is capable of multiple frequencies. However, the only one acceptable for keeping time is 1024hz. For this reason, it is strongly NOT recommended that you change the frequency of the RTC, or your computers clock will no longer be accurate |
The RTC is capable of multiple frequencies. However, the only one acceptable for keeping time is 1024hz. For this reason, it is strongly NOT recommended that you change the frequency of the RTC, or your computers clock will no longer be accurate |
||
====See Also==== |
|||
[http://www.geocities.com/SiliconValley/Campus/1671/docs/rtc2.htm Periodic Interrupts with the Real Time Clock] |
|||
[http://www.ousob.com/ng/interrupts_and_ports/ng9116b.php CMOS Ram Data Register] |
|||
[http://www.nondot.org/sabre/os/files/MiscHW/CMOSTimer.html Using the 1024 HZ Timer Interrupt] |
|||
Revision as of 13:14, 13 February 2009
This page is a work in progress.
This page may thus be incomplete. Its content may be changed in the near future.
Introduction
Most OSs use the PIT for timing purposes. However, I believe the RTC works just as well. RTC stands for Real Time Clock. It is the chip that keeps your computers CMOS clock up-to-date.
Programming it
The RTC is capable of multiple frequencies. However, the only one acceptable for keeping time is 1024hz. For this reason, it is strongly NOT recommended that you change the frequency of the RTC, or your computers clock will no longer be accurate
See Also
Periodic Interrupts with the Real Time Clock CMOS Ram Data Register Using the 1024 HZ Timer Interrupt