System Logic

[dayn]

Is there any solution to convert .bit to .coe file ?

I have to initialise a single port RAM (create with Block Memory Generator) with a bitstream in a FPGA virtex5 (Xilinx)
So, I'm looking for any soft to convert my .bit file.

I try to convert it to .hex file with BIN2HEX.EXE available here :

File Utilities

And try to convert .hex file to .coe. with MAKEXCOE available here :

How to simple convert a hex or mif file to .coe file?

But the file is huge and the out file is fail (write 000000....).


Do you know any others solution, please ?

Best Regards

Dayn

[rcingham]

Is the BIT file the one produced by ISE following P&R etc.? That is for the whole FPGA, which could be why other files are huge.

Looking at the COE syntax from http://www.xilinx.com/support/documentation/sw_manuals/xilinx13_1/cgn_r_coe_file_syntax.htm it doesn't look terribly difficult to hand edit if you only need to do it once.

[rho88]

Use an rbt or bin file (output from bitgen), this will make your life easier.  PROMGen is also a useful tool for converting to different formats.  Is your goal here to store an entire FPGA image in BRAM or something?  There are probably easier ways to do this, although I don't really know exactly what you are trying to do.  

[dayn]

rcingham

Thanks for your reply.

The BIT is produced by PlanAhead using Configuration Partial. This BIT is a Partial Module.

The .hex file  size create with .bit file is 169Ko (2247 lines). The .bit file size is 71Ko.

I have to make 4 Partial Modules with approximatly the same size.

So, perhaps I can try to hand edit my CEO but here my .hex file is look like: 

:2000000000090FF00FF00FF00FF0000001610026636F6E6669675F335F726F757465642E2B
:200020006E63643B5573657249443D307846464646464646460062000F3576667831333081
:20004000746666313733380063000B323031312F30372F32310064000930393A33373A314E
:2000600034006500011854FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF93
:20008000FFFFFFFFFFFFFF000000BB11220044FFFFFFFFFFFFFFFFAA9955662000000030EF
:2000A00000800100000007200000002000000030018001033000933000800100000001202E
:2000C00000000030002001001186802000000030004000500022C1000000000000000000F5
:2000E0000000000000000000000000000000E00000000000000000000000000000008000A0
:200100000000000000000000000000000000000000000000000000000000000000000000DF
:20012000000000000000000000088300000000000000000000000000000000000000000034
:2001400000000000000000000000000000000000000000000000000000000000000000009F
:2001600000000000000000000000000000000000000000000000000000000000000000007F
:2001800000000000000000000000000000000000000000000000000000000000000000005F

...

And I have to make COE file with 8, 16 or 32 bits size by line  like (example) :

MEMORY_INITIALIZATION_RADIX=16;
MEMORY_INITIALIZATION_VECTOR=
1,
54F5A98E,
F45B7440,
45883201,
54786E12,

....

I show you the first line hex file transform:

HEX file:

:2000000000090FF00FF00FF00FF0000001610026636F6E6669675F335F726F757465642E2B

:20000000  00090FF00FF00FF00FF0000001610026636F6E6669675F335F726F757465642E  2B

data = 00090FF00FF00FF00FF0000001610026636F6E6669675F335F726F757465642E

to a COE file  :

MEMORY_INITIALIZATION_RADIX=16;
MEMORY_INITIALIZATION_VECTOR=

00090FF00FF00FF00FF0000001610026636F6E6669675F335F726F757465642E,

...

Is it true ?

In my mind it's hard to hand edit CEO file like that

Is there any solution to make it more easily ?

Best Regards

Dayn

[dayn]

rho88

thanks for your reply

I want to test Reconfiguration Partial.

I try to save 4 bitstreams in each 4 memory in the FPGA (Virtex5).

Those memory are link to ICAP interface.

Memry and ICAP are controlled by FSM.

I think everything you need to know is in my preview reply (.bit size ...).

Don't hesitate, if you are more request about what I want to do !!

[srineshthakur]

Please any one can tell me how to convert  .bit file into .hex file and also .bit to text file

[srineshthakur]

Hi,

The .bit file which is generated from Xilinx ISE, I wanna convert .bit into .c format for the source code. Does any one have the idea how to do this.

Waiting for the reply,

Thanks in advance

[mcgett]

What do you hope to achieve by converting the BIT file to each of these formats (HEX, TXT, C)?

[rho88]

---

srineshthakur wrote:

Hi,

The .bit file which is generated from Xilinx ISE, I wanna convert .bit into .c format for the source code. Does any one have the idea how to do this.

Waiting for the reply,

Thanks in advance

---

This is probably what you are looking for: http://www.xilinx.com/tools/autoesl.htm.  Or actually this sounds like the opposite of what you want to do....

[rikusleroux]

Hi guys,

Sorry to revive such an old post. I just want to find out if this issue was resolved.

dayn, did you manage to convert the file? If so, how did you do it?