Отправлено Postoroniy_v 17 февраля 2005 г. 12:55 В ответ на: Может кто поделится Альтеровской коркой NAND Flash контроллера. Из старых версий, для ACEX. И еще, обязательно эти флэши стирать перед тем как опять записывать?? (+) отправлено Балбес 17 февраля 2005 г. 10:10

Identifying Invalid Block(s)
All device locations are erased(FFh) except locations where the invalid block(s) information is written prior to shipping. The invalid
block(s) status is defined by the 6th byte(X8 device) or 1st word(X16 device) in the spare area. Samsung makes sure that either the
1st or 2nd page of every invalid block has non-FFh(X8 device) or non-FFFFh(X16 device) data at the column address of 517(X8
device) or 256 and 261(X16 device). Since the invalid block information is also erasable in most cases, it is impossible to recover the
information once it has been erased. Therefore, the system must be able to recognize the invalid block(s) based on the original
invalid block information and create the invalid block table via the following suggested flow chart(Figure 3). Any intentional erasure of
the original invalid block information is prohibited.

• Так как говориться, "Смотрел в книку, видел фигу" — Балбес   (17.02.2005 17:13, пустое)