what's wrong with the Flash programmer?

hello all,

QII4.2,Nios 1.1

I encounted a strange problem when I use the flash programmer frome Nios IDE.the console show:

# ! /bin/sh# # This file was automatically generated by the Nios II IDE Flash Programmer.# # It will be overwritten when the flash programmer options change.#

cd D:/Nios/flashprogrammer/software/s251_flashprogrammer/Debug

# Creating .flash file for the FPGA configuration

$SOPC_KIT_NIOS2/bin/sof2flash --flash=U4 --offset=0x00600000 --input=D:/Nios/fla

shprogrammer/s25_lock.sof --output=s25_lock.flash

Info: *******************************************************************

Info: Running Quartus II Convert_programming_file

Info: Command: quartus_cpf --no_banner --convert D:/Nios/flashprogrammer/s25_loc

k.sof s25_lock.rbf

Info: Quartus II Convert_programming_file was successful. 0 errors, 0 warnings

Info: Processing ended: Fri Mar 18 09:35:55 2005

Info: Elapsed time: 00:00:01

WARNING: Default charset GBK not supported, using ISO-8859-1 instead

# Programming flash with the FPGA configuration

$SOPC_KIT_NIOS2/bin/nios2-flash-programmer --input=s25_lock.flash --sof=d:/nios/

flashprogrammer/my_1s251_board/system/my_1s251_board.sof --cable='ByteBlasterII

[LPT1]' --base=0x00800000

Mar 18, 2005 9:36:00 AM - (??) nios2-flash-programmer: Launching Quartus Program

mer to download:

d:/nios/flashprogrammer/my_1s251_board/system/my_1s251_board.sof

Pre-Reading 964KBytes of data from U4:

|----.----+----.----|

********************* (43.875 sec).

Erasing 16 Sectors:

|----.----+----.----|

********************* (10.656 sec).

Writing 1024KBytes :

|----.----+----.----|

********************* (66.719 sec).

Verifying 1024KBytes of data:

|----.----+----.----|

********************* (42.594 sec).

Mar 18, 2005 9:39:18 AM - (??) nios2-flash-programmer: Success. Verified 1024Kby

tes written to U4.

Mar 18, 2005 9:39:18 AM - (??) nios2-flash-programmer: Flash programming complet

e

WARNING: Default charset GBK not supported, using ISO-8859-1 instead

# Creating .flash file for the project

$SOPC_KIT_NIOS2/bin/elf2flash --flash=U4 --base=0x00000000 --end=0x800000 --rese

t=0x0 --input=s251_flashprogrammer.elf --output=ext_flash.flash --boot=$SOPC_KIT

_NIOS2/components/altera_nios2/boot_loader_cfi.srec

WARNING: Default charset GBK not supported, using ISO-8859-1 instead

# Programming flash with the project

$SOPC_KIT_NIOS2/bin/nios2-flash-programmer --input=ext_flash.flash --sof=__NO_SO

F_PLEASE__ --cable='ByteBlasterII [LPT1]' --base=0x00800000

Mar 18, 2005 9:39:19 AM - (??) nios2-flash-programmer: SOF-download skipped.

Pre-Reading 0KBytes of data from U4:

|----.----+----.----|

*********************Mar 18, 2005 9:39:29 AM - (??) nios2-flash-programmer:

Flash file is too large to fit in flash memory

WARNING: Default charset GBK not supported, using ISO-8859-1 instead

the error when download application is:Flash file is too large to fit in flash memory

why? before download ext_flash.flash ,the file is 200kbyte

but after that ext_flash.flash is only 1kbyte

when run all is ok.

thank you