hib1 Posted October 30, 2014 Report Share Posted October 30, 2014 I am following the intro to spartan fpga book “first project” involving papilio one and a logicstar megawing with switches and leds. The constraints file is: # Constraints for Papilio OneNET switch_1 LOC = "P3" | IOSTANDARD=LVTTL;NET switch_0 LOC = "P4" | IOSTANDARD=LVTTL;NET LED_1 LOC = "P16" | IOSTANDARD=LVTTL;NET LED_0 LOC = "P17" | IOSTANDARD=LVTTL; This is mapping each led or switch on the logic start board to a pin on the papilio board. The pin numbers on the papilio are defined, but the pins on the logic start board are not. How can this work? Quote Link to comment Share on other sites More sharing options...
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