From 80f99a1b563de928f5b3b6ea6a14dd23622a7ea8 Mon Sep 17 00:00:00 2001
From: Toby Thain <toby.thain@fivebox.com>
Date: Sat, 28 Mar 2020 19:06:00 -0400
Subject: [PATCH 1/2] Add Makefile.

---
 Makefile | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 Makefile

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..addc96e
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+CC=avr-gcc 
+CFLAGS=-Os -DF_CPU=16000000UL -mmcu=atmega328p -nostartfiles -ffreestanding -fbuiltin
+LD=avr-gcc 
+LDFLAGS=-mmcu=atmega328p
+
+blink.hex : blink
+	avr-objcopy -O ihex -R .eeprom $^ $@
+
+blink : blink.c
+
+clean : ; rm -f blink blink.hex

From 7c118fe801aa96423f0b7c6c90e38437729a3ebd Mon Sep 17 00:00:00 2001
From: Toby Thain <toby@telegraphics.com.au>
Date: Sun, 29 Mar 2020 15:46:39 -0400
Subject: [PATCH 2/2] Clean up Makefile. Add `flash` target for Linux.

---
 Makefile | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index addc96e..d9d713d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,13 @@
 CC=avr-gcc 
-CFLAGS=-Os -DF_CPU=16000000UL -mmcu=atmega328p -nostartfiles -ffreestanding -fbuiltin
-LD=avr-gcc 
-LDFLAGS=-mmcu=atmega328p
+CFLAGS=-Wall -Wextra -Os -DF_CPU=16000000UL -mmcu=atmega328 -nostartfiles -ffreestanding -fbuiltin
 
 blink.hex : blink
 	avr-objcopy -O ihex -R .eeprom $^ $@
 
 blink : blink.c
 
+# This is for Linux, where my Pololu programmer is registered as /dev/ttyACM0
+flash : blink.hex
+	avrdude -p m328 -c avrisp2 -P /dev/ttyACM0 -v -U flash:w:$^
+
 clean : ; rm -f blink blink.hex