From 47d28bff1206fb007238b16fe4ad9fea76970002 Mon Sep 17 00:00:00 2001
From: Clifford Wolf <clifford@clifford.at>
Date: Thu, 29 Dec 2016 13:46:20 +0100
Subject: Added iCEZUM example

---
 examples/icezum/.gitignore |  4 ++++
 examples/icezum/Makefile   | 30 ++++++++++++++++++++++++++++++
 examples/icezum/example.v  | 25 +++++++++++++++++++++++++
 examples/icezum/icezum.pcf |  9 +++++++++
 4 files changed, 68 insertions(+)
 create mode 100644 examples/icezum/.gitignore
 create mode 100644 examples/icezum/Makefile
 create mode 100644 examples/icezum/example.v
 create mode 100644 examples/icezum/icezum.pcf

(limited to 'examples')

diff --git a/examples/icezum/.gitignore b/examples/icezum/.gitignore
new file mode 100644
index 0000000..c1fa30b
--- /dev/null
+++ b/examples/icezum/.gitignore
@@ -0,0 +1,4 @@
+example.bin
+example.blif
+example.asc
+example.rpt
diff --git a/examples/icezum/Makefile b/examples/icezum/Makefile
new file mode 100644
index 0000000..cad44d2
--- /dev/null
+++ b/examples/icezum/Makefile
@@ -0,0 +1,30 @@
+PROJ = example
+PIN_DEF = icezum.pcf
+DEVICE = hx1k
+
+all: $(PROJ).rpt $(PROJ).bin
+
+%.blif: %.v
+	yosys -p 'synth_ice40 -top top -blif $@' $<
+
+%.asc: $(PIN_DEF) %.blif
+	arachne-pnr -d $(subst hx,,$(subst lp,,$(DEVICE))) -o $@ -p $^
+
+%.bin: %.asc
+	icepack $< $@
+
+%.rpt: %.asc
+	icetime -d $(DEVICE) -mtr $@ $<
+
+prog: $(PROJ).bin
+	iceprog $<
+
+sudo-prog: $(PROJ).bin
+	@echo 'Executing prog as root!!!'
+	sudo iceprog $<
+
+clean:
+	rm -f $(PROJ).blif $(PROJ).asc $(PROJ).rpt $(PROJ).bin
+
+.SECONDARY:
+.PHONY: all prog clean
diff --git a/examples/icezum/example.v b/examples/icezum/example.v
new file mode 100644
index 0000000..9bdf587
--- /dev/null
+++ b/examples/icezum/example.v
@@ -0,0 +1,25 @@
+module top (
+	input  clk,
+	output LED0,
+	output LED1,
+	output LED2,
+	output LED3,
+	output LED4,
+	output LED5,
+	output LED6,
+	output LED7
+);
+
+	localparam BITS = 3;
+	localparam LOG2DELAY = 20;
+
+	reg [BITS+LOG2DELAY-1:0] counter = 0;
+	reg [BITS-1:0] outcnt;
+
+	always@(posedge clk) begin
+		counter <= counter + 1;
+		outcnt <= counter >> LOG2DELAY;
+	end
+
+	assign {LED7, LED6, LED5, LED4, LED3, LED2, LED1, LED0} = 1 << outcnt;
+endmodule
diff --git a/examples/icezum/icezum.pcf b/examples/icezum/icezum.pcf
new file mode 100644
index 0000000..4139e7f
--- /dev/null
+++ b/examples/icezum/icezum.pcf
@@ -0,0 +1,9 @@
+set_io LED0 95
+set_io LED1 96
+set_io LED2 97
+set_io LED3 98
+set_io LED4 99
+set_io LED5 101
+set_io LED6 102
+set_io LED7 104
+set_io clk 21
-- 
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