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Altera_Forum's avatar
Altera_Forum
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12 years ago

Changing cyclone II I/O current strength without re-synthesis

Hi,

I would like to change several FPGA IO's current strength but without re-synthesis the project.

the project is old and already functions "on the field", hence, we prefer to reduce risks as much as possible by not re-synthesis.

all relevant I/Os are LVTTL/LVCMOS.

is it possible?

thanks

3 Replies

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

    If you still have the original project database and the Quartus Version installed that generated it, current strength can be changed in the chip editor.

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

    --- Quote Start ---

    If you still have the original project database and the Quartus Version installed that generated it, current strength can be changed in the chip editor.

    --- Quote End ---

    Thanks for the answers. Which stages of the design synthesis will be changed when using the chip editor to drive different current strength?

    do i have to use the same quartus version as used in the original generation?