Use a FPGA to flash the Nios II program in another FPGA

Hallo again,

the jerarchy would be:

control pc --- serial ---> microcontroller ---memory space---> 1st fpga ---JTAG--->2nd fpga

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So how are you doing that now? Via JTAG connected to both the first and second FPGAs, or just to the second FPGA?

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Now I can access to the JTAG pins, but I will not in the future, as the whole system will have to be enclosed. I can now directly update the second FPGA, but it is just while debugging.

The .flash file looks like this (the beginnin), with the notepad:

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S0200000496E647573747269616C45746865726E65744D6F64756C2E666C61736844

S32500000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFA

S3250000002056EFEFEFEFCFCFCFDFDF9FDFDF8F9F9FBFBF9FBFFFDFBF9FFFDFFFFF9F9F9F9FE3

S32500000040BF9FBFBF9FBF9FDFDF16E8FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1A

S32500000060FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF9A

S32500000080FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF7A

S325000000A0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5A

S325000000C0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF3A

S325000000E0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF1A

S32500000100FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF9

S32500000120FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFD9

S32500000140FFFFFFFFFFFFFFFFFFFF000000000101010100000000010101010000000000009B

S32500000160000000000000000000000000000000000000000000000000000000000000000079

S32500000180000000000000000000000000000000000000000000000000000000000000000059

S325000001A0000000000000000000000000000000000000000000000000000000000000000039

S325000001C0000000000000000000000000000000000000000000000000000000000000000019

S325000001E00000000000000000000000000000000000000000000000000000000000000000F9

S325000002000000000000000000000000000000000000000000000000000000000000000000D8

S325000002200000000000000000000000000000000000000000000000000000000000000000B8

S32500000240000000000000000000000000000000000000000000000000000000000000000098

S325000002600000000000000000000000000000000000000000000000000000202020200000F8

S32500000280000000000000000000000000000000000000000000000000000000000000000058

S325000002A00000000000000000000000000000000000000000000000000000202020200000B8

S325000002C0000020202020000000000000000020202020000000000000000000000000000018

S325000002E0000020202020202020202020202000000000000000001010101000000000101018

S325000003001010000000000000000000000000000000000000000000000000000000000000B7

S32500000320000020202020202020200000000000000000020202022222222220202020202067

S32500000340202020202020222222222222222222222222222222222222222222222222222263

S325000003602222222222222222222222222222222222222222222222222222020202020202F7

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I guess I would receive not good values if I opened it with a binary editor... as it seems that all lines have some kind of coding for the programmer and then data in Hex format... my doubt here, is which of this information do I have to send and how...

Thank you very much!