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22 TITLE="Flash Image System (FIS)"
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49 >eCos Reference Manual</TH
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82 NAME="FIS-UNLOCK-COMMAND">fis unlock</H1
90 >fis unlock -- Unlock flash area</DIV
92 CLASS="REFSYNOPSISDIV"
120 CLASS="INFORMALTABLE"
172 >Address of area to be unlocked.</TD
199 >Length of area to be unlocked.</TD
220 >This command is used to unlock a portion of flash memory forcibly, allowing
221 it to be updated. It must be issued for regions which have been locked before
222 the FIS can reuse those portions of flash.</P
230 >Some flash devices power up in locked state and always need to
231 be manually unlocked before they can be written to.</P
243 >Unlock an area of the flash
255 >fis unlock -f 0xa0040000 -l 0x20000</B
258 ... Unlock from 0xa0040000-0xa0060000: .</PRE
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