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
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NXP Semiconductors
UM10237
Chapter 30: LPC24XX Flash memory programming firmware
10.6 Read Boot code version number
10.7 Compare <address1> <address2> <no of bytes>
10.8 Reinvoke ISP
Table 627. IAP Read Boot Code version number command
Command
Read boot code version number
Input
Command code: 55
10
Parameters:
None
Return Code
CMD_SUCCESS |
Result
Result0:
2 bytes of boot code version number in ASCII format. It is to be
interpreted as <byte1(Major)>.<byte0(Minor)>
Description
This command is used to read the boot code version number.
Table 628. IAP Compare command
Command
Compare
Input
Command code: 56
10
Param0(DST):
Starting Flash or RAM address of data bytes to be compared. This
address should be a word boundary.
Param1(SRC):
Starting Flash or RAM address of data bytes to be compared. This
address should be a word boundary.
Param2:
Number of bytes to be compared; should be a multiple of 4.
Return Code
CMD_SUCCESS |
COMPARE_ERROR |
COUNT_ERROR (Byte count is not a multiple of 4) |
ADDR_ERROR |
ADDR_NOT_MAPPED
Result
Result0:
Offset of the first mismatch if the Status Code is COMPARE_ERROR.
Description
This command is used to compare the memory contents at two locations.
The result may not be correct when the source or destination includes any
of the first 64 bytes starting from address zero. The first 64 bytes can be
re-mapped to RAM.
of the first 64 bytes starting from address zero. The first 64 bytes can be
re-mapped to RAM.
Table 629. Reinvoke ISP
Command
Compare
Input
Command code: 57
10