Remove up5k_mac16 "example" and add README to up5k_rgb and icebreaker

Signed-off-by: Clifford Wolf <clifford@clifford.at>

6 files changed, 4 insertions, 123 deletions

diff --git a/examples/icebreaker/README b/examples/icebreaker/README
new file mode 100644
index 0000000..19b3763
--- /dev/null
+++ b/examples/icebreaker/README
@@ -0,0 +1,2 @@
+Simple example for the iCEbreaker dev board:
+https://github.com/esden/icebreaker/
diff --git a/examples/up5k_mac16/.gitignore b/examples/up5k_mac16/.gitignore
deleted file mode 100644
index dd32bfb..0000000
--- a/examples/up5k_mac16/.gitignore
+++ /dev/null
@@ -1,12 +0,0 @@
-*.bin
-*.blif
-*.asc
-*.rpt
-*.glb
-*.psb
-*.sdf
-*.vsb
-*.bin
-*.tmp/
-*.exp
-*.vlog
diff --git a/examples/up5k_mac16/Makefile b/examples/up5k_mac16/Makefile
deleted file mode 100644
index 06c9ed7..0000000
--- a/examples/up5k_mac16/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-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
deleted file mode 100644
index 5e21181..0000000
--- a/examples/up5k_mac16/mac16.pcf
+++ /dev/null
@@ -1,4 +0,0 @@
-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
deleted file mode 100644
index 0323fc3..0000000
--- a/examples/up5k_mac16/mac16.v
+++ /dev/null
@@ -1,71 +0,0 @@
-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
diff --git a/examples/up5k_rgb/README b/examples/up5k_rgb/README
new file mode 100644
index 0000000..cc41315
--- /dev/null
+++ b/examples/up5k_rgb/README
@@ -0,0 +1,2 @@
+Simple RGB LED demo for UP5K boards, such as the Lattice "iCE40 UltraPlus Breakout Board" and
+the Lattice "iCE40 UltraPlus Mobile Development Platform".