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About IAP of STR912

Hello,
I have been working on MCBSTR9 kit. Now, i have a problem about in-application programming.
i read the AN2475, and study on the project source. i tried to copy the source to Keil uVision3. i did followings to download and work IAP in bank1:
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- *Boot Bank Size Configuration (BBSR) BBSize: Memory size 32KB BBADDR: Address 0x000000 *Non-boot Bank Size Configuration (BBSR) BBSize: Memory size 512KB BBADDR: Address 0x080000
- Options - ASM - Define, Define: BOOT_BANK1
- CSX (Chip Select Mapping) checked
- options - target: IROM1: Start 0x000000 size 0x8000 (checked the box on right and left) IROM2: Start 0x080000 size 0x80000 (not checked) IRAM1: Start 0x4000000 size 0x8000 (checked the box on left)
- STR91xFxx Flash Bank1 ICP STR91x CFG & Security ICP
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Then it works from bank1 now. The menu (to download or execute) i can see 115200 baud, in hyper terminal.
i hit "1", then i chose the .bin file, i start to send.. everthing goes ok till here.
i take "Verification failed" error, i could not download the bin file.
if anyone can help me ???