From cd6e5c802526a27ce7aa167f39d85d9c6fca9e2d Mon Sep 17 00:00:00 2001
From: Steffen Moeller <moeller@debian.org>
Date: Mon, 8 Aug 2016 05:42:43 +0200
Subject: [PATCH] Blinky functional on HX1K

---
 blinky/Makefile                         | 26 +++++++++++++++---------
 blinky/{pinmap.pcf => pinmap_ct256.pcf} |  0
 blinky/pinmap_tq144.pcf                 |  7 +++++++
 blinky/top_1k.v                         | 27 +++++++++++++++++++++++++
 blinky/{top.v => top_8k.v}              |  0
 5 files changed, 51 insertions(+), 9 deletions(-)
 rename blinky/{pinmap.pcf => pinmap_ct256.pcf} (100%)
 create mode 100644 blinky/pinmap_tq144.pcf
 create mode 100644 blinky/top_1k.v
 rename blinky/{top.v => top_8k.v} (100%)

diff --git a/blinky/Makefile b/blinky/Makefile
index 4f906f7..6fecf10 100644
--- a/blinky/Makefile
+++ b/blinky/Makefile
@@ -1,26 +1,34 @@
 # Project setup
 PROJ      = blinky
 BUILD     = ./build
-DEVICE    = 8k
+DEVICE    = 1k
+#DEVICE    = 8k
+ifeq (8k,$(DEVICE))
 FOOTPRINT = ct256
+else
+FOOTPRINT = tq144
+endif
+
 
 # Files
-FILES = top.v
+FILES = top_$(DEVICE).v
 
 .PHONY: all clean burn
 
-all:
+all: iceprog $(BUILD)/$(PROJ)_$(DEVICE).bin
+
+iceprog $(BUILD)/$(PROJ)_$(DEVICE).bin: $(FILES)
 	# if build folder doesn't exist, create it
 	mkdir -p $(BUILD)
 	# synthesize using Yosys
-	yosys -p "synth_ice40 -top top -blif $(BUILD)/$(PROJ).blif" $(FILES)
+	yosys -p "synth_ice40 -top top -blif $(BUILD)/$(PROJ)_$(DEVICE).blif" $(FILES)
 	# Place and route using arachne
-	arachne-pnr -d $(DEVICE) -P $(FOOTPRINT) -o $(BUILD)/$(PROJ).asc -p pinmap.pcf $(BUILD)/$(PROJ).blif
+	arachne-pnr -d $(DEVICE) -P $(FOOTPRINT) -o $(BUILD)/$(PROJ)_$(DEVICE).asc -p pinmap_$(FOOTPRINT).pcf $(BUILD)/$(PROJ)_$(DEVICE).blif
 	# Convert to bitstream using IcePack
-	icepack $(BUILD)/$(PROJ).asc $(BUILD)/$(PROJ).bin
+	icepack $(BUILD)/$(PROJ)_$(DEVICE).asc $(BUILD)/$(PROJ)_$(DEVICE).bin
 
-burn:
-	iceprog $(BUILD)/$(PROJ).bin
+burn: $(BUILD)/$(PROJ)_$(DEVICE).bin
+	iceprog $<
 
 clean:
-	rm build/*
+	rm -f build/*
diff --git a/blinky/pinmap.pcf b/blinky/pinmap_ct256.pcf
similarity index 100%
rename from blinky/pinmap.pcf
rename to blinky/pinmap_ct256.pcf
diff --git a/blinky/pinmap_tq144.pcf b/blinky/pinmap_tq144.pcf
new file mode 100644
index 0000000..4cdac50
--- /dev/null
+++ b/blinky/pinmap_tq144.pcf
@@ -0,0 +1,7 @@
+# example.pcf
+set_io --warn-no-port led1 99
+set_io --warn-no-port led2 98
+set_io --warn-no-port led3 97
+set_io --warn-no-port led4 96
+set_io --warn-no-port led5 95
+set_io --warn-no-port hwclk 21
diff --git a/blinky/top_1k.v b/blinky/top_1k.v
new file mode 100644
index 0000000..cb15233
--- /dev/null
+++ b/blinky/top_1k.v
@@ -0,0 +1,27 @@
+// Blink an LED provided an input clock
+/* module */
+module top (hwclk, led1, led2, led3, led4, led5 );
+    /* I/O */
+    input hwclk;
+    output led1;
+    output led2;
+    output led3;
+    output led4;
+    output led5;
+
+    /* Counter register */
+    reg [31:0] counter = 32'b0;
+
+    /* LED drivers */
+    assign led1 = counter[18];
+    assign led2 = counter[19];
+    assign led3 = counter[20];
+    assign led4 = counter[21];
+    assign led5 = counter[22];
+
+    /* always */
+    always @ (posedge hwclk) begin
+        counter <= counter + 1;
+    end
+
+endmodule
diff --git a/blinky/top.v b/blinky/top_8k.v
similarity index 100%
rename from blinky/top.v
rename to blinky/top_8k.v