Altera_Forum
Honored Contributor
Honored Contributorresource use
i used cyclone4 FPGA for my new design.but when the FPGA project is compiled ,i found that the use of the FPGA resource is 0 .what is the matter?
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4 Replies
Altera_ForumIf your design doesn't have any output (i.e. doesn't drive any signal on an output pin) it will be optimized away by Quartus.
- Altera_Forum
Or signals are stuck to Vcc or GND. (reset always active, no clock....)
- Altera_Forum
some output pins ,i have assigned value ,but some pins ,i leave them nc
- Altera_Forum
Have you got warning (or error) messages like "do not drive logics" "stuck to VCC or GND" when you compile with Quartus ?
