From f7cb6e8e07c9b314e5052c4b0416db422dbdeb7b Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Tue, 8 Dec 2015 12:54:20 +0100 Subject: Added icestick and hx8kboard examples --- examples/icestick/.gitignore | 3 +++ examples/icestick/Makefile | 18 ++++++++++++++++++ examples/icestick/example.v | 22 ++++++++++++++++++++++ examples/icestick/icestick.pcf | 6 ++++++ 4 files changed, 49 insertions(+) create mode 100644 examples/icestick/.gitignore create mode 100644 examples/icestick/Makefile create mode 100644 examples/icestick/example.v create mode 100644 examples/icestick/icestick.pcf (limited to 'examples/icestick') diff --git a/examples/icestick/.gitignore b/examples/icestick/.gitignore new file mode 100644 index 0000000..4b77d1b --- /dev/null +++ b/examples/icestick/.gitignore @@ -0,0 +1,3 @@ +example.bin +example.blif +example.txt diff --git a/examples/icestick/Makefile b/examples/icestick/Makefile new file mode 100644 index 0000000..295642a --- /dev/null +++ b/examples/icestick/Makefile @@ -0,0 +1,18 @@ +all: example.bin + +example.blif: example.v + yosys -p 'synth_ice40 -top top -blif example.blif' example.v + +example.txt: example.blif icestick.pcf + arachne-pnr -d 1k -o example.txt -p icestick.pcf example.blif + +example.bin: example.txt + icepack example.txt example.bin + +prog: + iceprog example.bin + +clean: + rm -f example.blif example.txt example.bin + +.PHONY: all prog clean diff --git a/examples/icestick/example.v b/examples/icestick/example.v new file mode 100644 index 0000000..cb7cfcd --- /dev/null +++ b/examples/icestick/example.v @@ -0,0 +1,22 @@ +module top ( + input clk, + output LED1, + output LED2, + output LED3, + output LED4, + output LED5 +); + + localparam BITS = 5; + localparam LOG2DELAY = 22; + + reg [BITS+LOG2DELAY-1:0] counter = 0; + reg [BITS-1:0] outcnt; + + always@(posedge clk) begin + counter <= counter + 1; + outcnt <= counter >> LOG2DELAY; + end + + assign {LED1, LED2, LED3, LED4, LED5} = outcnt ^ (outcnt >> 1); +endmodule diff --git a/examples/icestick/icestick.pcf b/examples/icestick/icestick.pcf new file mode 100644 index 0000000..a1693eb --- /dev/null +++ b/examples/icestick/icestick.pcf @@ -0,0 +1,6 @@ +set_io LED1 99 +set_io LED2 98 +set_io LED3 97 +set_io LED4 96 +set_io LED5 95 +set_io clk 21 -- cgit v1.2.3