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LPC2378 iap bootloader

I want examples lpc2378 bootloader. But I don't understand algorithm.

Example of ,

- First program : open one led testboard.Output:first.hex
- Second program : open two led testboard.Output:second.hex

First program , first.hex ,use flashmagic.exe program to lpc2378. It's program ok. Run.
Programing Flash memory starting adres 0x000000 ------

Second program second.hex convert second.bin ,edit binary file hex-editor-neo program.

0x000000 - 18
0x000001 - 21
0x000010 - 0g
. .
.

First program variable equalize second.bin

unsigned char const BootLoader_secondhex[] =
{ 0x18, 0x21, 0x0g, ......
}

use iap flash memory writing starting
0x8000=0x18
0x8001=0x21
0x8002=0x0g
. .
.

finish write flash memory go to run adress 0x8000 , program was written to address the program starts right?

bootloader algorithm is done as described above.

- Could you help me ?