BorlandTalk.com Forum Index BorlandTalk.com
Borland discussion newsgroups
 
Archives   FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Windows XP: reading and writing to CMOS RAM

 
Post new topic   Reply to topic    BorlandTalk.com Forum Index -> C++ Builder (Native API)
View previous topic :: View next topic  
Author Message
Simon Elliott
Guest





PostPosted: Fri Oct 06, 2006 12:46 am    Post subject: Windows XP: reading and writing to CMOS RAM Reply with quote



Hi

I want to read and write to the CMOS RAM where the BIOS parameters are
held. Should I use a port I/O driver and access port 0x70 and 0x71 or
is there a better way? (I'm aware Windows XP maintains a memory map of
this area but as far as I know this is only a shadow of the CMOS RAM
and changing it doesn't actually write bytes to the CMOS RAM.)

Can anyone point to any info on this, and on recalculating the CMOS
checksum once I've written some bytes to the CMOS?

TIA!

--
Simon Elliott http://www.ctsn.co.uk
Back to top
Display posts from previous:   
Post new topic   Reply to topic    BorlandTalk.com Forum Index -> C++ Builder (Native API) All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2006 phpBB Group
SEO toolkit © 2004-2006 webmedic.