This tool check the connection between device to device.
You assign some pins of external connector as power VCC/GND.
This tool searches power path on schematic net-list from the pin. and assign signal type and logic to these hit pins.
After searching all power path, it judge each pins to correct or wrong from tool information.
- This pin of this device have to connect pull up.
- This pin have to connect to this pin of this device.
- MSEL pins of Altera cyclone III connect to VCC/GND, so this device config mode is ActiveSerial. Each config pin have to connect as proper.
The difference from the Design Rule Check of schematic CAD is limit the designer.