Add notes

atmega-notizen.txt

@@ -0,0 +1,37 @@
+USB Plug
+Looking at the good end (board on the downside):
+4: GND (BLACK), 3: D+ (GREEN), 2: D- (WHITE), 1: +5V (RED)
+
+ATMega 328P
+32MLF Package
+
+Nr1 - PD3 (PCINT19/OC2B/INT1) -> 3
+Nr32 - PD2 (INT0/PCINT18) -> 2
+
+2 - Digital Pin 2 - Ext Int 0
+3 - Digital Pin 3 - Ext Int 1
+
+
+
+13 SCK	Red
+12 MISO	Yellow
+11 MOSI	Green
+10 SS	Blue
+
+Flashing with base command
+avrdude -P /dev/ttyUSB0  -c arduino -p m328p -b 19200
+
+
+### Build process
+
+# 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