Nxp Semiconductors UM10237 用户手册
UM10237_2
© NXP B.V. 2008. All rights reserved.
User manual
Rev. 02 — 19 December 2008
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NXP Semiconductors
UM10237
Chapter 31: LPC24XX On-chip bootloader for flashless parts
6.6 Go <address> <mode>
6.7 Read Part Identification number
6.8 Read Boot code version number
Table 638. ISP Go command
Command
G
Input
Address:
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 memory. It may not
be possible to return to the ISP command handler once this command is
successfully executed.
be possible to return to the ISP command handler once this command is
successfully executed.
Example
"G 0 A<CR><LF>" branches to address 0x0000 0000 in ARM mode.
Table 639. 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.
Table 640. LPC24xx part Identification numbers
Device
ASCII/dec coding
Hex coding
LPC2420
302049073
0x1200 E731
LPC2460
369164080
0x1600 FF30
LPC2470
386006832
0x1701 FF30
Table 641. ISP Read Boot Code version number command
Command
K
Input
None
Return Code
CMD_SUCCESS followed by 2 bytes of boot code version number in ASCII format.
It is to be interpreted as <byte1(Major)>.<byte0(Minor)>.
It is to be interpreted as <byte1(Major)>.<byte0(Minor)>.
Description
This command is used to read the boot code version number.