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| author | David Shah <davey1576@gmail.com> | 2018-07-10 12:31:58 +0200 |
|---|---|---|
| committer | David Shah <davey1576@gmail.com> | 2018-07-11 10:42:09 +0200 |
| commit | 1830c9372e9bb959cb886c8271d64778550a7ebb (patch) | |
| tree | e89bf0f9e0e6341f27f70f88dc3d2b59a9400551 /ecp5/synth/blinky.v | |
| parent | 98cdb6082d1f916bd47676c3e7f1feab6b585216 (diff) | |
| download | nextpnr-1830c9372e9bb959cb886c8271d64778550a7ebb.tar.gz nextpnr-1830c9372e9bb959cb886c8271d64778550a7ebb.tar.bz2 nextpnr-1830c9372e9bb959cb886c8271d64778550a7ebb.zip | |
ecp5: *** Blinky working ***
Signed-off-by: David Shah <davey1576@gmail.com>
Diffstat (limited to 'ecp5/synth/blinky.v')
| -rw-r--r-- | ecp5/synth/blinky.v | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/ecp5/synth/blinky.v b/ecp5/synth/blinky.v index aba58801..bda627cc 100644 --- a/ecp5/synth/blinky.v +++ b/ecp5/synth/blinky.v @@ -1,10 +1,25 @@ -module top(input clk_pin, output [3:0] led_pin); +module top(input clk_pin, output [3:0] led_pin, output gpio0_pin); wire clk; wire [3:0] led; + wire gpio0; + + (* BEL="X0/Y35/PIOA" *) (* IO_TYPE="LVCMOS33" *) TRELLIS_IO #(.DIR("INPUT")) clk_buf (.B(clk_pin), .O(clk)); - TRELLIS_IO #(.DIR("OUTPUT")) led_buf [3:0] (.B(led_pin), .I(led)); + + (* BEL="X0/Y23/PIOC" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("OUTPUT")) led_buf_0 (.B(led_pin[0]), .I(led[0])); + (* BEL="X0/Y23/PIOD" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("OUTPUT")) led_buf_1 (.B(led_pin[1]), .I(led[1])); + (* BEL="X0/Y26/PIOA" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("OUTPUT")) led_buf_2 (.B(led_pin[2]), .I(led[2])); + (* BEL="X0/Y26/PIOC" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("OUTPUT")) led_buf_3 (.B(led_pin[3]), .I(led[3])); + + + (* BEL="X0/Y62/PIOD" *) (* IO_TYPE="LVCMOS33" *) + TRELLIS_IO #(.DIR("OUTPUT")) gpio0_buf (.B(gpio0_pin), .I(gpio0)); reg [25:0] ctr = 0; @@ -13,4 +28,7 @@ module top(input clk_pin, output [3:0] led_pin); assign led = ctr[25:22]; + // Tie GPIO0, keep board from rebooting + TRELLIS_SLICE #(.MODE("LOGIC"), .LUT0_INITVAL(16'hFFFF)) vcc (.F0(gpio0)); + endmodule |