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true.
The unused pins are set in project assignments => device => device and pin options => unused pins
There are several options:
1) default(hopefully) "as tristated inputs with weak pullup", Quartus connects it to Vcc internally, no need for pcb wiring to Vcc
2) "as tristated inputs", you need to connect to board Vcc or ground
3) "as output driving ground", quartus connects it to gnd internally, no need for wiring to pcb gnd. This is what you are after, provides more ground.
4) "as outputs driving unspecified signal",
5) "as tristated inputs with bus hold circuitry"
I am not clear about last two but assume it means floating, this is bad , consumes extra power and acts as antennas for noise.
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Hi kaz,
Does item 3) make hardware dangerous? At least cause more power consumption.
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