4 files changed, 123 insertions, 0 deletions
diff --git a/examples/up5k_mac16/.gitignore b/examples/up5k_mac16/.gitignore
new file mode 100644
index 0000000..dd32bfb
--- /dev/null
+++ b/examples/up5k_mac16/.gitignore
@@ -0,0 +1,12 @@
+*.bin
+*.blif
+*.asc
+*.rpt
+*.glb
+*.psb
+*.sdf
+*.vsb
+*.bin
+*.tmp/
+*.exp
+*.vlog
diff --git a/examples/up5k_mac16/Makefile b/examples/up5k_mac16/Makefile
new file mode 100644
index 0000000..06c9ed7
--- /dev/null
+++ b/examples/up5k_mac16/Makefile
@@ -0,0 +1,36 @@
+PROJ = mac16
+PIN_DEF = mac16.pcf
+DEVICE = up5k
+
+ARACHNE = arachne-pnr 
+ARACHNE_ARGS = 
+ICEPACK = icepack
+ICETIME = icetime
+ICEPROG = iceprog
+
+all: $(PROJ).bin
+
+%.blif: %.v
+	yosys -p 'synth_ice40 -top top -blif $@' $<
+
+%.asc: $(PIN_DEF) %.blif
+	$(ARACHNE) $(ARACHNE_ARGS) -d $(subst up,,$(subst hx,,$(subst lp,,$(DEVICE)))) -o $@ -p $^
+
+%.bin: %.asc
+	$(ICEPACK) $< $@
+
+%.rpt: %.asc
+	$(ICETIME) -d $(DEVICE) -mtr $@ $<
+
+prog: $(PROJ).bin
+	$(ICEPROG) -S $<
+
+sudo-prog: $(PROJ).bin
+	@echo 'Executing prog as root!!!'
+	sudo $(ICEPROG) -S $<
+
+clean:
+	rm -f $(PROJ).blif $(PROJ).asc $(PROJ).rpt $(PROJ).bin
+
+.SECONDARY:
+.PHONY: all prog clean
diff --git a/examples/up5k_mac16/mac16.pcf b/examples/up5k_mac16/mac16.pcf
new file mode 100644
index 0000000..5e21181
--- /dev/null
+++ b/examples/up5k_mac16/mac16.pcf
@@ -0,0 +1,4 @@
+set_io clk 44
+set_io rstn 27
+set_io LED1 12
+set_io LED2 13
diff --git a/examples/up5k_mac16/mac16.v b/examples/up5k_mac16/mac16.v
new file mode 100644
index 0000000..0323fc3
--- /dev/null
+++ b/examples/up5k_mac16/mac16.v
@@ -0,0 +1,71 @@
+module top(
+  input clk,
+  input rstn,
+  output LED1,
+  output LED2);
+  
+wire reset = !rstn;
+  
+wire [15:0] A    = 16'd999;
+wire [15:0] B    = 16'd12345;
+wire [31:0] RES  = 32'd12332655;
+
+wire [31:0] dsp_out;
+
+SB_MAC16 i_sbmac16
+  (
+    .A(A),
+    .B(B),
+    .C(16'b0),
+    .D(16'b0),
+    .CLK(clk),
+    .CE(1'b1),
+    .IRSTTOP(reset),
+    .IRSTBOT(reset),
+    .ORSTTOP(reset),
+    .ORSTBOT(reset),
+    .AHOLD(1'b0),
+    .BHOLD(1'b0),
+    .CHOLD(1'b0),
+    .DHOLD(1'b0),
+    .OHOLDTOP(1'b0),
+    .OHOLDBOT(1'b0),
+    .OLOADTOP(1'b0),
+    .OLOADBOT(1'b0),
+    .ADDSUBTOP(1'b0),
+    .ADDSUBBOT(1'b0),
+    .CO(),
+    .CI(1'b0),
+    .O(dsp_out)
+  );
+
+//16x16 => 32 unsigned pipelined multiply
+defparam i_sbmac16. B_SIGNED                  = 1'b0;
+defparam i_sbmac16. A_SIGNED                  = 1'b0;
+defparam i_sbmac16. MODE_8x8                  = 1'b0;
+
+defparam i_sbmac16. BOTADDSUB_CARRYSELECT     = 2'b00;
+defparam i_sbmac16. BOTADDSUB_UPPERINPUT      = 1'b0;
+defparam i_sbmac16. BOTADDSUB_LOWERINPUT      = 2'b00;
+defparam i_sbmac16. BOTOUTPUT_SELECT          = 2'b11;
+
+defparam i_sbmac16. TOPADDSUB_CARRYSELECT     = 2'b00;
+defparam i_sbmac16. TOPADDSUB_UPPERINPUT      = 1'b0;
+defparam i_sbmac16. TOPADDSUB_LOWERINPUT      = 2'b00;
+defparam i_sbmac16. TOPOUTPUT_SELECT          = 2'b11;
+
+defparam i_sbmac16. PIPELINE_16x16_MULT_REG2  = 1'b1;
+defparam i_sbmac16. PIPELINE_16x16_MULT_REG1  = 1'b1;
+defparam i_sbmac16. BOT_8x8_MULT_REG          = 1'b1;
+defparam i_sbmac16. TOP_8x8_MULT_REG          = 1'b1;
+defparam i_sbmac16. D_REG                     = 1'b0;
+defparam i_sbmac16. B_REG                     = 1'b1;
+defparam i_sbmac16. A_REG                     = 1'b1;
+defparam i_sbmac16. C_REG                     = 1'b0;
+
+assign LED1 = (dsp_out == RES) ? 1'b1 : 1'b0;
+assign LED2 = 1'b0;
+
+
+
+endmodule