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Peter https://becomwiki.live.md-websolutions.com/index.php?title=DDR-RAM_(SBC-i.MX51)&diff=453&oldid=prev 2023-08-22T19:35:53Z

<p>1 Version importiert</p> <p><b>Neue Seite</b></p><div>The SBC-i.MX51 includes 512MB DDR2 SDRAM.<br /> <br /> V1.2: DDR2-667<br /> V2.1: DDR2-800<br /> <br /> == Simple check in Linux ==<br /> Look at the output of<br /> root@i:~# cat /proc/meminfo <br /> MemTotal: 483344 kB<br /> MemFree: 367168 kB<br /> ...<br /> <br /> == Memory test in Linux ==<br /> The &#039;&#039;memtester&#039;&#039; program is included in all demo images created with OpenEmbedded.<br /> To run 1 loop on 450MiB of the memory, execute<br /> memtester 450 1<br /> A successful memory test looks like this:<br /> root@i:~# memtester 450 1<br /> memtester version 4.0.6 (32-bit)<br /> Copyright (C) 2006 Charles Cazabon.<br /> Licensed under the GNU General Public License version 2 (only).<br /> <br /> pagesize is 4096<br /> pagesizemask is 0xfffff000<br /> want 450MB (471859200 bytes)<br /> got 450MB (471859200 bytes), trying mlock ...locked.<br /> Loop 1/1:<br /> Stuck Address : ok <br /> Random Value : ok<br /> Compare XOR : ok<br /> Compare SUB : ok<br /> Compare MUL : ok<br /> Compare DIV : ok<br /> Compare OR : ok<br /> Compare AND : ok<br /> Sequential Increment: ok<br /> Solid Bits : ok <br /> Block Sequential : ok <br /> Checkerboard : ok <br /> Bit Spread : ok <br /> Bit Flip : ok <br /> Walking Ones : ok<br /> Walking Zeroes : ok<br /> <br /> Done.<br /> root@i:~#<br /> <br /> <br /> <br /> [[Category:SBC-i.MX51]]<br /> [[Category:i.MX]]</div>

en>Peter