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Old 09-05-2005, 12:25 AM   #1
chandu123
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Registered: Sep 2005
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REG. Large page NAND Flash(2112 bytes)


Hi,
I am trying to access NAND flash on my board from the bootloader. I m using armboot and trying to modify the code so as to support NAND flash. I am using ST Microelectronics large page(2112 bytes) 8 bit NAND Flash. I am able to do write and read operations on an already erased pages, but unable to do erase operation. I am following the data sheet from ST.
Do any one of u have suggestions for me as where exactly I m going wrong?

Thanks in advance.

regards,
chandru.
 
Old 05-03-2006, 11:09 PM   #2
jier
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Registered: May 2006
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hi,

i'm currently implementing the FAT structure on to the nand flash and i found some difficulties, hope anyone able to help me.

i had this nand flash -> 256MB: 1page = (2046 + 64), 64pages = 1 block, total block number = 2048.
izzit 1 sector = 1 page, and 1 cluster = 1 block? if this is the case, my cluster size is larger than 65535bytes which the microsoft claim this may cause problems.

besides, 1 logical address represent 1 block? so my total logical address is 2000? and 1 logical block address = 1 cluster???

all the information i get is 1 sector = 512+16 byte where the structure can be known but 64byte redundancy area,what is the stucture??? anyone able to help can direct email me oso ->ycherjier@yahoo.com
 
  


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