Quartus 9.1sp1 : .jic (JTAG indirect ...) vs .pof (programing object file)

Altera_Forum · ‎06-24-2011

Hi, I am using Quartus 9.1sp1 Web Edition under windows XP SP2

Quartus II generated .pof (compressed ?) and .sof files. As usual.

I convert the sof file to .jic using the "convert programing file" under Quartus

I configured my epcs through my FPGA using Jtag with my generated .jic.

I "examine" my epcs and save to .pof files.

As a result, i got slightly different behaviour of my card.

I made checksums (with Peazip) :


\test_pof_jic\ep2c15_generated.pof                                 988B24DB				
\test_pof_jic\after_conversion_from_sofcompression_to_jic.pof                           24709DBE
\test_pof_jic\after_conversion_from_sofnocompression_to_jic.pof                       2E275B19

The generated .pof after conversion are different of the generated .pof by compilation.

Have you used Indirect configuration with .jic files ?

Have you already faced to different behaviour between {a directly configured card by .pof} and {a configured card by .jic} ?

Could I trust a configured card with Jic ?

EDIT :

I found (using fc.exe) differences at the end of the .pof (disabled compression) files

00080096: 25 26
000800A0: C8 D0
000800A7: 45 50
000800A8: 50 61
000800A9: 43 67
000800AA: 53 65
000800AB: 34 5F
000800AC: 20 30
000800AD: 30 20
000800B5: 20 30
000800B6: 30 20
000800B8: 34 30
000800B9: 30 33
000800BA: 30 42
000800BB: 30 36
000800BC: 30 35
000800BD: 30 31
000800BE: 3B 30
000800BF: 08 3B
000800C0: 00 08
000800C1: 02 00
000800C2: 00 02
000800C5: 2B 00
000800C6: E8 26

maybe .jic does not include some options like

"Auto restart configuration after error"

"enable error detection crc"

...

if any expert could confirm.

Regards