moonnightingale
Full Member level 6
This is my code
module leds(out_c,out_d,in_b,in_a,in_e);
output out_c,out_d;
input in_a,in_b,in_e;
assign out_c=in_a&in_b;
assign out_d=in_a|in_e;
endmodule
UCF file
NET "in_a" LOC="D18"| IOSTANDARD = LVTTL | PULLDOWN ;
NET "in_b" LOC="K17"| IOSTANDARD = LVTTL | PULLDOWN ;
NET "in_e" LOC="H13"| IOSTANDARD = LVTTL | PULLDOWN ;
NET "out_c" LOC="F12"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
NET "out_d" LOC="F9"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
NET "out_d" LOC="E9"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
NET "out_d" LOC="D11"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
i want multiple LEDs to glow for out put of "d" but only D11 is glowing. why it is so
module leds(out_c,out_d,in_b,in_a,in_e);
output out_c,out_d;
input in_a,in_b,in_e;
assign out_c=in_a&in_b;
assign out_d=in_a|in_e;
endmodule
UCF file
NET "in_a" LOC="D18"| IOSTANDARD = LVTTL | PULLDOWN ;
NET "in_b" LOC="K17"| IOSTANDARD = LVTTL | PULLDOWN ;
NET "in_e" LOC="H13"| IOSTANDARD = LVTTL | PULLDOWN ;
NET "out_c" LOC="F12"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
NET "out_d" LOC="F9"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
NET "out_d" LOC="E9"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
NET "out_d" LOC="D11"| IOSTANDARD = LVCMOS33 | SLEW = FAST | DRIVE = 8 ;
i want multiple LEDs to glow for out put of "d" but only D11 is glowing. why it is so