From b58818bb08ea410e5b0a75b121d2a9ce8fdf3bb4 Mon Sep 17 00:00:00 2001
From: Neale Pickett <neale@woozle.org>
Date: Wed, 27 Mar 2013 21:50:31 -0600
Subject: [PATCH] Basic Arduino skeleton

---
 Makefile | 30 ++++++++++++++++++++++-----
 blink.c  | 63 +++++++++++++++++++++++++++++++++-----------------------
 2 files changed, 62 insertions(+), 31 deletions(-)

diff --git a/Makefile b/Makefile
index 8214327..c78cfdb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,27 @@
-CC = msp430-gcc
-CFLAGS += -mmcu=msp430g2553
-CFLAGS += -Wall
+CC = avr-gcc
+CFLAGS += -mmcu=atmega328p
+CFLAGS += -DF_CPU=16000000UL
 CFLAGS += -Os
-CFLAGS += -g
+CFLAGS += -w
 
-all: main blink
+AVDFLAGS += -p m328p
+AVDFLAGS += -c arduino
+AVDFLAGS += -b 115200
+AVDFLAGS += -P /dev/ttyACM0
+
+
+upload: .upload
+
+.upload: blink.hex
+	avrdude $(AVDFLAGS) -U flash:w:$<
+	touch $@
+
+blink.hex: blink
+	avr-objcopy -O ihex -R .eeprom -R .fuse -R .lock -R .signature $< $@
+
+clean:
+	rm -f blink.hex blink
+
+
+
+	
diff --git a/blink.c b/blink.c
index 4f46403..aa63e92 100644
--- a/blink.c
+++ b/blink.c
@@ -1,28 +1,39 @@
-#include <msp430.h>
-
-unsigned int i = 0;
-
-unsigned char bits1 = BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5 + BIT6 + BIT7;
-unsigned char bits2 = BIT0 + BIT1 + BIT2 + BIT3 + BIT4 + BIT5;
-
-int
-main(void)
+#include <avr/io.h>
+#include <util/delay.h>
+ 
+ 
+int main (void)
 {
-	WDTCTL = WDTPW + WDTHOLD;
-	P1DIR |= bits1;
-	P2DIR |= bits2;
-
-	P1OUT |= bits1;
-	P2OUT &= ~bits2;
-
-	for (;;) {
-		i = (i + 1) % 40000;
-		
-		if (i == 0) {
-			P1OUT ^= bits1;
-			P2OUT ^= bits2;
-		}
-	}		
-
-	return 0;
+  unsigned char counter;
+  /* set PORTB for output*/
+  DDRB = 0xFF;
+ 
+  while (1)
+    {
+      /* set PORTB.2 high */
+      PORTB = 0xFF;
+ 
+      /* wait (10 * 120000) cycles = wait 1200000 cycles */
+      counter = 0;
+      while (counter != 50)
+	{
+	  /* wait (30000 x 4) cycles = wait 120000 cycles */
+	  _delay_loop_2(60000);
+	  counter++;
+	}
+ 
+      /* set PORTB.2 low */
+      PORTB = 0x00;
+ 
+      /* wait (10 * 120000) cycles = wait 1200000 cycles */
+      counter = 0;
+      while (counter != 50)
+	{
+	  /* wait (30000 x 4) cycles = wait 120000 cycles */
+	  _delay_loop_2(30000);
+	  counter++;
+	}
+    }
+ 
+  return 1;
 }
\ No newline at end of file