Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Help with EPCS1 compressed data

Hi,

I would like to save money and use the EPCS1 as my configuration device. I compiled my code and I noticed that the size of the pof file was 131272 bytes. I am targeting an EPCS1 device in the project settings and quartus completed the compilation with no problems (with compression turned on). How can I find out what the actual size of the POF file is. It doesn't make sense to me that my pof file (with a size of 131272 bytes) can fit into the EPCS1 since its its 1.04MBit device, and my POF file is 1.05MBits.

Can anyone shed any light on this?

Thanks

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    did you get the pof size from the windows? the pof file actually contains some header and footer information that is why it seems larger than the actual EPCS size. However these information won't be programmed into the EPCS. Besides, if the data exceeds the actual flash size, the Quartus convert programming file won't allow the generation of the pof file.