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Altera_Forum
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15 years ago

CIII/EPCS design configures and programs but does not start

Hi, I have a design with EP3C40 and EPCS64. I create flash files with: sof2flash --epcs --compress --input=logic.sof --output=logic.srec elf2flash --epcs --after=logic.srec --input=softwar...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

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Hi Mark.

I think you definitely have a problem with the Nios 2 bootloader.

I'd recommend you check the hex file and possibly regenerate it from the source files.

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Yeah, I wondered the same thing. The project was from scratch, so there's no old cruft in there. However, just to be sure I wrote a little program to read back the bootloader bytes from the EPCS component. It matches byte for byte with the ciii hex file in the Quartus directory, so is good I think.

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I attach for your convenience my CIII bootloader file. It should work for you, too.

Execute a fpga MIF update, flash into epcs and let me know if this solves your problem.

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Thanks. I'll give it a go.

Mark.