diff options
Diffstat (limited to 'ecp5/synth/ulx3s.v')
| -rw-r--r-- | ecp5/synth/ulx3s.v | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/ecp5/synth/ulx3s.v b/ecp5/synth/ulx3s.v new file mode 100644 index 00000000..7f0786f5 --- /dev/null +++ b/ecp5/synth/ulx3s.v @@ -0,0 +1,16 @@ +module top(input a_pin, output led_pin, output gpio0_pin); + + wire a; + wire led; + wire gpio0; + (* BEL="X90/Y65/PIOB" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("INPUT")) a_buf (.B(a_pin), .O(a)); + (* BEL="X0/Y23/PIOC" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("OUTPUT")) led_buf (.B(led_pin), .I(led), .T(t)); + (* BEL="X0/Y62/PIOD" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("OUTPUT")) gpio0_buf (.B(gpio0_pin), .I(gpio0), .T(t)); + assign led = !a; + wire t; + TRELLIS_SLICE #(.MODE("LOGIC"), .LUT0_INITVAL(16'h0000)) gnd (.F0(t)); + TRELLIS_SLICE #(.MODE("LOGIC"), .LUT0_INITVAL(16'hFFFF)) vcc (.F0(gpio0)); +endmodule |