Pushbutton_and example added

4 files changed, 71 insertions, 0 deletions

diff --git a/icezum/pushbutton_and/Makefile b/icezum/pushbutton_and/Makefile
new file mode 100644
index 0000000..2042685
--- /dev/null
+++ b/icezum/pushbutton_and/Makefile
@@ -0,0 +1,32 @@
+PROJ = pushbutton_and
+PIN_DEF = $(PROJ).pcf
+DEVICE = hx1k
+
+all: $(PROJ).rpt $(PROJ).bin
+
+%.blif: %.vhdl
+	ghdl -a $(PROJ).vhdl
+	yosys -m ../../ghdl.so -p 'ghdl $(PROJ); synth_ice40 -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 $(PROJ).bin work-obj93.cf
+
+.SECONDARY:
+.PHONY: all prog clean
diff --git a/icezum/pushbutton_and/README.md b/icezum/pushbutton_and/README.md
new file mode 100644
index 0000000..b4734c5
--- /dev/null
+++ b/icezum/pushbutton_and/README.md
@@ -0,0 +1,17 @@
+A hello world example for the **Icezum Alhambra board**
+Testing the sw1 and sw1 pushbutton with an AND gate. The state of the AND
+and its negated are wired to the led0 and led7 respectively
+
+Execute
+
+```sh
+$ make
+```
+
+for synthesizing the example and
+
+```sh
+$ make prog
+```
+
+for programing the board
diff --git a/icezum/pushbutton_and/pushbutton_and.pcf b/icezum/pushbutton_and/pushbutton_and.pcf
new file mode 100644
index 0000000..31883fc
--- /dev/null
+++ b/icezum/pushbutton_and/pushbutton_and.pcf
@@ -0,0 +1,4 @@
+set_io sw1  10

+set_io sw2  11

+set_io led0 95

+set_io led7 104

diff --git a/icezum/pushbutton_and/pushbutton_and.vhdl b/icezum/pushbutton_and/pushbutton_and.vhdl
new file mode 100644
index 0000000..0a9831d
--- /dev/null
+++ b/icezum/pushbutton_and/pushbutton_and.vhdl
@@ -0,0 +1,18 @@
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+entity pushbutton_and is
+  port (sw1, sw2 : in std_logic;
+        led0, led7 : out std_logic);
+end pushbutton_and;
+
+architecture synth of pushbutton_and is
+
+signal a : std_logic;
+
+begin
+  a <= sw1 and sw2;
+  led0 <= a;
+  led7 <= not a;
+end synth;