Initial Makefile and keyboard.c

2 files changed, 22 insertions, 0 deletions

diff --git a/keyboard/Makefile b/keyboard/Makefile
new file mode 100644
index 0000000..59a5540
--- /dev/null
+++ b/keyboard/Makefile
@@ -0,0 +1,8 @@
+
+default:
+	# compile for attiny85 with warnings, optimizations, and 16.5MHz clock frequency
+	avr-gcc -Wall -Os -mmcu=attiny85 -o keyboard.o keyboard.c
+	avr-objcopy -j .text -j .data -O ihex keyboard.o keyboard.hex
+
+clean: /dev/null
+	rm -f keyboard.o keyboard.hex
diff --git a/keyboard/keyboard.c b/keyboard/keyboard.c
new file mode 100644
index 0000000..dbba981
--- /dev/null
+++ b/keyboard/keyboard.c
@@ -0,0 +1,14 @@
+#include <avr/eeprom.h>
+#include <avr/io.h>
+#define F_CPU 16500000L  // 16.5 MHZ
+#include <util/delay.h>
+
+int main() {
+	DDRB |= _BV(DDB1);
+	while (1) {
+		PORTB ^= _BV(PB1);
+		_delay_ms(100);
+		PORTB ^= _BV(PB1);
+		_delay_ms(900);
+	}
+}