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Altera_Forum
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11 years ago

About converting two sof files to one jic file

Hi, I encountered some difficulties in creating jic file and need help. I have two sof files and two jic files generated based on the sof file, either one jic works well after I program it into EP...
Altera_Forum's avatar
Altera_Forum
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11 years ago

First of all - you should read about the JTAG Indirect Programming in the an370: using the serial flashloader with the quartus ii software (http://www.altera.com/literature/an/an370.pdf)

Check the address settings during sof to jic convertation. Your sof files can overlap each other.

The uncompressed bitstream for the EP3C40 has 9600000 bits ([url]http://www.altera.com/literature/hb/cyc3/cyc3_ciii51016.pdf (http://www.altera.com/literature/hb/cyc3/cyc3_ciii51016.pdf)[/URL], page 9-7).

It is 1200000 bytes. The result of compression is unpredictable, it depends on your design.

So, it can happend that the start address of the second sof (0x060000) is overlap the first sof.

P.S. Don't duplicate your questions, please...