how to send a file to fpga through jtag uart?

dear friends ,

iam having NIOS II 5.0v , my target board is (cyclone)UP3 board , i had seen ur discussion on Filesystems ,

i had tried to use HOSTFile system in NIOS II IDE , but iam not sucessfull in it ,

IS there any option to be enable while creating .bdf file ,

I have components in SOPC builters such as (Jtag-uart , sdram,sram,..)but i didnt have included UART(Rs232),

As per the Help contents in NIOSII IDE , i enabled the option

systemlib->system componets ->Host file system .....

but iam not posible to read and write .I even created the specified file (read.txt and write,txt)in the workspace , for read and write .. but iam not possible to successed .

i have another doubt , HostFs is not possible to perform in Run mode only in Debug mode means ,

then what is the use ...

then what is the difference b/w run and debugg mode in Nios II IDE

eagerly waiting for the reply.

regards ,

Murugan.b