Comtrol eCos - Manual (Page 141)

mfill
Name
mfill — Fill RAM with a specified pattern
Synopsis
mfill {-b location } {-l length } {-p value } [-1 | -2 | -4]
Arguments
Name Type Description Default
-b location Memory address Location in memory for
start of data. none
-l length Number Length of data none
-p pattern Number Data value to fill with 0
-1 Access one byte (8 bits) at
a time. Only the least
significant 8 bits of the
pattern will be used. -4
-2 Access two bytes (16 bits)
at a time. Only the least
significant 16 bits of the
pattern will be used. -4
-4 Access one word (32 bits)
at a time. -4
Description
Fills a range of memory with the given pattern.
Examples
Fill a buffer with zeros.
RedBoot> x -b 0x100000 -l 0x20
00100000: 00 3E 00 06 00 06 00 06 00 00 00 00 00 00 00 00 |.>..............|
00100010: 00 00 00 78 00 70 00 60 00 60 00 60 00 60 00 60 |...x.p.‘.‘.‘.‘.‘|
RedBoot> mfill -b 0x100000 -l 0x20
RedBoot> x -b 0x100000 -l 0x20
00100000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
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