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Altera_Forum's avatar
Altera_Forum
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21 years ago

Flash programmer via ethernet

Now that I have ethernet working on my custom board, I'd like to use it to update the board, or at least the flash memory. It is mentioned in the existing board kit docs that board updates via ht...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Scott,

Got the ethernet up. On my custom board the lan chip is wired up differently than the kit; 16bit interface but with registers on word boundaries. Apparently the same as existing ADNPESC1 configuration.

Now I can ping and tftpboot. One quirk is that tftpboot hangs after the download. It does not report the bytes transferred or return to a prompt. By resetting and doing a cmp, I can tell the download was correct and proceed to burning flash. The same thing also happens with loadb, so its not an ethernet problem. I dont get the prompt back with loads either. I am using an offset of 801000 and image sizes too small to collide with anything.

On the kit board I did not have these problems. Any ideas?

You mentioned the timer earlier. I had originally set CFG_NIOS_TMRMS to 1 thinking I had to match the default hw. I changed it back to 10 after reading the comments.

thanks again