From 420b7d6591a89b8d3f4446ef19cef2c8548a4380 Mon Sep 17 00:00:00 2001
From: Jan Philipp Timme <jan.philipp@timme.it>
Date: Sat, 9 Mar 2019 12:50:49 +0100
Subject: [PATCH] Initial import

---
 .gitignore        |  4 ++++
 blink.c           | 17 +++++++++++++++++
 buildandupload.sh | 16 ++++++++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 blink.c
 create mode 100755 buildandupload.sh

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..912a953
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+*.hex
+*.elf
+*.o
+
diff --git a/blink.c b/blink.c
new file mode 100644
index 0000000..217b660
--- /dev/null
+++ b/blink.c
@@ -0,0 +1,17 @@
+#include <avr/io.h>
+
+#define F_CPU 20000000UL
+#include <util/delay.h>
+
+int main() {
+	DDRB |= 1;
+
+	while(1) {
+		PORTB |= 1;
+		_delay_ms(50);
+		PORTB &= ~1;
+		_delay_ms(950);
+	}
+
+	return 1;
+}
diff --git a/buildandupload.sh b/buildandupload.sh
new file mode 100755
index 0000000..36deca6
--- /dev/null
+++ b/buildandupload.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+# Cleanup
+rm -vf *.o *.elf *.hex
+
+# Compile
+/home/jpt/arduino-1.8.8/hardware/tools/avr/bin/avr-gcc -c -mmcu=atmega328p blink.c
+
+# Link
+/home/jpt/arduino-1.8.8/hardware/tools/avr/bin/avr-gcc -g -mmcu=atmega328p blink.o -o blink.elf
+
+# Convert hex
+/home/jpt/arduino-1.8.8/hardware/tools/avr/bin/avr-objcopy -j .text -j .data -O ihex blink.elf blink.hex
+
+# Upload
+avrdude -P /dev/ttyUSB0  -c arduino -p m328p -b 19200 -U flash:w:blink.hex