Dear Manuel, in message <[EMAIL PROTECTED]> you wrote: > > My problem the structure of the enviroment: > If I understand: > 4 byte crc; 1 byte flags, 0x20000-5 byte data.
Correct - the flag byte is only present if you use redundant environment. > The CRC is over the data bytes,( not the flags byte included) , right ?? Correct. That's because the flasg byte indicates the state of the environment copy (current -> bit = 1, or obsolete -> bit = 0). It relies on the feature of NOR flash that you can always program '1' bits to '0', even single bits in a single byte. > What about the flag byte, which values should I have to write here ? See above. But you might have problems doing such a thing on NAND storage. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: [EMAIL PROTECTED] I have a very small mind and must live with it. -- Edsger Dijkstra ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://ad.doubleclick.net/clk;164216239;13503038;w?http://sf.net/marketplace _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
