flash

The flash command provides for programming, erasing and copying flash memory areas.

Format

The format for the command is:

flash [-q] [-e arg] [args ...]
where:

<none>

gives a list of available flash areas and types

-q

gives a list of available flash areas and types

-e base_addr

erases the flash area on that base address.

base_addr size from_addr

writes the flash base_addr memory for size bytes using from_addr memory starting point.

Each area in the flash devices will be identified, and is dependant on the system implementation.

These areas are useable for storage or for bootable images.
The -q (Query) option will list each system dependent flash ROM area. The base address and size is listed, along with each flas area configuration, sector size (if supported) and the actual Flash device Manufacturing ID value (if reported). Example:

PMON> flash -q
Available FLASH memory 
 Start   Size     Width Sectorsize Type
ff000000 00800000 8*8   00040000   i28F160 
fff00000 00080000 1*8   00010000   Am29F040 
PMON>

The -e (Erase) option code calculates the sector from the flash address you enter, and the number of sectors are the size divided by sectorsize (rounded up).

See Also:

The boot -f (from FLASH) command. It allows boot loading from one of several several flash areas.

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