LinuxQuestions.org
Share your knowledge at the LQ Wiki.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware > Linux - Embedded & Single-board computer
User Name
Password
Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

Notices


Reply
  Search this Thread
Old 03-18-2019, 04:24 PM   #1
webquinty
Member
 
Registered: Apr 2008
Location: Espaņa
Distribution: Suse
Posts: 227

Rep: Reputation: 32
Static Ram to retain data in a embedded system


Hi everybody,

I would like to know if somebody has experience with this topic.
Right now, I have implemented similar scenario but using a FPGA as bridge between x86 cpu and Static ram.

Now, I would like to use a static ram connected directly to a pci express or similar.

I don't know if Linux has capabilities to handle this type of ram memories directly.

Thank you in advance.
 
Old 03-20-2019, 05:28 AM   #2
business_kid
LQ Guru
 
Registered: Jan 2006
Location: Ireland
Distribution: Slackware, Slarm64 & Android
Posts: 16,152

Rep: Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310Reputation: 2310
I doubt if static ram will retain memory in any system. The sole advantage it has is that it doesn't need refreshing, but it loses memory when the power goes, as well as being slower to write, and scarce.

Use battery backed ram, or NVRAM, such as is used for the bios settings in your motherboard. You have a slower & more expensive option in EEPROM (Electrically Erasable Programmable ROM). If you have an fpga in there, you can handle either, but I'd recommend NVRAM.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
[SOLVED] Why do symbolic links retain data of deleted files to which they previously linked lityit Linux - General 2 11-05-2011 10:35 PM
Why size of swap space is 2x of RAM??? Why not 1.5x of RAM or 2.5x of RAM??? Saurav Ghosh Linux - Newbie 7 11-01-2011 03:49 AM
help me to retain the data while OS upgrade aq_mishu Linux - Server 5 06-27-2011 03:02 PM
Xpert in 8-16 bit microcontroller embedded system now inclining toward embedded linux priyadarshan Linux - Embedded & Single-board computer 2 02-12-2009 04:28 AM
Retain Server Connection Up, If Client Break, write system call return SIGPIPE anandss2004 Programming 2 10-24-2005 12:16 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware > Linux - Embedded & Single-board computer

All times are GMT -5. The time now is 01:43 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration