From a97282bd712e8643a9a66016798025ccd0cf9a3e Mon Sep 17 00:00:00 2001
From: Kjetil Orbekk <kjetil.orbekk@gmail.com>
Date: Fri, 5 Feb 2016 20:09:18 -0500
Subject: Add blink example.

---
 blink/Makefile | 16 ++++++++++++++++
 blink/blink.c  | 15 +++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 blink/Makefile
 create mode 100644 blink/blink.c

diff --git a/blink/Makefile b/blink/Makefile
new file mode 100644
index 0000000..890a892
--- /dev/null
+++ b/blink/Makefile
@@ -0,0 +1,16 @@
+PROJECT=blink
+SOURCES=$(PROJECT).c
+MMCU=attiny85
+F_CPU = 1000000
+
+CFLAGS=-mmcu=$(MMCU) -Wall -Os -DF_CPU=$(F_CPU)
+
+$(PROJECT).hex: $(PROJECT).out
+	avr-objcopy -O ihex $(PROJECT).out $(PROJECT).c.hex;\
+	avr-size --mcu=$(MMCU) --format=avr $(PROJECT).out
+
+$(PROJECT).out: $(SOURCES)
+	avr-gcc $(CFLAGS) -I./ -o $(PROJECT).out $(SOURCES)
+
+program: $(PROJECT).hex
+	avrdude -p $(MMCU) -c avrisp -P /dev/ttyUSB0 -b 19200 -U flash:w:$(PROJECT).c.hex
diff --git a/blink/blink.c b/blink/blink.c
new file mode 100644
index 0000000..5006606
--- /dev/null
+++ b/blink/blink.c
@@ -0,0 +1,15 @@
+#include <avr/io.h>
+#include <util/delay.h>
+
+int main(void) {
+  DDRB |= _BV(PB1);
+  while (1) {
+    PORTB |= (1<<2);
+    PORTB &= ~(1<<3);
+    _delay_ms(500);
+    PORTB &= ~(1<<2);
+    PORTB |= (1<<3);
+    _delay_ms(500);
+  }
+  return 0;
+}
-- 
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