Freescale Semiconductor ColdFire MCF5274, User Manual

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3-18 M5275EVB User’s Manual
Commands
FL Flash Utilities
Info Usage: FL
Erase Usage: FL erase addr bytes
Write Usage: FL write dest src bytes
The FL command provides a set of flash utilities that will display information about the
Flash devices on the EVB, erase a specified range of Flash, or erase and program a specified
range of Flash.
When issued with no parameters, the FL command will display usage information as well
as device specific information for the Flash devices available. This information includes
size, address range, protected range, access size, and sector boundaries.
When the erase command is given, the FL command will attempt to erase the number of
bytes specified on the command line beginning at addr. If this range doesn’t start and end
on Flash sector boundaries, the range will be adjusted automatically and the user will be
prompted for verification before proceeding.
When the write command is given, the FL command will program the number of bytes
specified from src to dest. An erase of this region will first be attempted. As with the erase
command, if the Flash range to be programmed doesn’t start and end on Flash sector
boundaries, the range will be adjusted and the user will be prompted for verification before
the erase is performed. The specified range is also checked to insure that the entire
destination range is valid within the same Flash device and that the src and dest are not
within the same device.