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UM10237_4
© NXP B.V. 2009. All rights reserved.
User manual
Rev. 04 — 26 August 2009
687 of 792
NXP Semiconductors
UM10237
Chapter 30: LPC24XX Flash memory programming firmware
9.7 Copy RAM to Flash
9.8 Go
Table 611. ISP Copy command
Command
C
Input
Flash Address(DST):
Destination Flash address where data bytes are to be
written. The destination address should be a 256 byte boundary.
RAM Address(SRC):
Source RAM address from where data bytes are to be read.
Number of Bytes:
Number of bytes to be written. Should be 256 | 512 | 1024 |
4096.
Return Code
CMD_SUCCESS |
SRC_ADDR_ERROR (Address not on word boundary) |
DST_ADDR_ERROR (Address not on correct boundary) |
SRC_ADDR_NOT_MAPPED |
DST_ADDR_NOT_MAPPED |
COUNT_ERROR (Byte count is not 256 | 512 | 1024 | 4096) |
SECTOR_NOT_PREPARED_FOR WRITE_OPERATION |
BUSY |
CMD_LOCKED |
PARAM_ERROR |
CODE_READ_PROTECTION_ENABLED
Description
This command is used to program the Flash memory. The "Prepare Sector(s) for
Write Operation" command should precede this command. The affected sectors are
automatically protected again once the copy command is successfully executed.
The boot block cannot be written by this command. This command is blocked when
code read protection is enabled.
Example
"C 0 1073774592 512
0x4000 8000 to the Flash address 0.
Table 612. ISP Go command
Command
G
Input
Address:
Flash or RAM address from which the code execution is to be started.
This address should be on a word boundary.
Mode:
T (Execute program in Thumb Mode) | A (Execute program in ARM mode).
Return Code
CMD_SUCCESS |
ADDR_ERROR |
ADDR_NOT_MAPPED |
CMD_LOCKED |
PARAM_ERROR |
CODE_READ_PROTECTION_ENABLED
Description
This command is used to execute a program residing in RAM or Flash memory. It
may not be possible to return to the ISP command handler once this command is
successfully executed. This command is blocked when code read protection is
enabled.
Example
"G 0 A