Nxp Semiconductors UM10237 ユーザーズマニュアル
UM10237_2
© NXP B.V. 2008. All rights reserved.
User manual
Rev. 02 — 19 December 2008
688 of 792
NXP Semiconductors
UM10237
Chapter 30: LPC24XX Flash memory programming firmware
9.9 Erase sector(s) <start sector number> <end sector number>
9.10 Blank check sector(s) <sector number> <end sector number>
9.11 Read Part Identification number
Table 614. ISP Erase sector command
Command
E
Input
Start Sector Number
End Sector Number:
Should be greater than or equal to start sector number.
Return Code
CMD_SUCCESS |
BUSY |
INVALID_SECTOR |
SECTOR_NOT_PREPARED_FOR_WRITE_OPERATION |
CMD_LOCKED |
PARAM_ERROR |
CODE_READ_PROTECTION_ENABLED
Description
This command is used to erase one or more sector(s) of on-chip Flash memory.
The boot block can not be erased using this command. This command only allows
erasure of all user sectors when the code read protection is enabled.
The boot block can not be erased using this command. This command only allows
erasure of all user sectors when the code read protection is enabled.
Example
"E 2 3<CR><LF>" erases the Flash sectors 2 and 3.
Table 615. ISP Blank check sector command
Command
I
Input
Start Sector Number:
End Sector Number:
Should be greater than or equal to start sector number.
Return Code
CMD_SUCCESS |
SECTOR_NOT_BLANK (followed by <Offset of the first non blank word location>
<Contents of non blank word location>) |
<Contents of non blank word location>) |
INVALID_SECTOR |
PARAM_ERROR |
Description
This command is used to blank check one or more sectors of on-chip Flash
memory.
memory.
Blank check on sector 0 always fails as first 64 bytes are re-mapped to Flash
boot block.
boot block.
Example
"I 2 3<CR><LF>" blank checks the Flash sectors 2 and 3.
Table 616. ISP Read Part Identification command
Command
J
Input
None.
Return Code
CMD_SUCCESS followed by part identification number in ASCII (see
Description
This command is used to read the part identification number.