====== Program Arduino Uno in C ======


===== Windows =====

install win avr: https://sourceforge.net/projects/winavr/

open a terminal window: ⊞ Win + C M D

put these files in a folder "path/to/folder/c-blink", and run: \

<code>

cd path/to/folder/c-blink make make flash

</code>

{{ :documentation:fa20:c-blink.zip |}}

The important bit is you Makefile. Depending on your configuration you might have to adjust the name of the USB-port your Arduino is connected to:

<code>
AVRDUDE = avrdude -q -V -p atmega328p -C C:\WinAVR-20100110\bin\avrdude.conf -D -c arduino -b 115200 -P COM6

</code>

===== Mac/Linux =====

For Mac install crosspack-avr:
<code>
https://www.obdev.at/products/crosspack/index.html
</code>
For Linux install avrgcc toolchain:
<code>
sudo apt install avrdude gcc-avr avr-libc make
</code>
open terminal/bash:

Mac: cmd-space and then type terminal\\ 
Linux: usually Ctrl+Alt+T\\ 

put the files (download below) in a folder path/to/folder/c-blink\\ 

open the Makefile with a text editor and edit the following line: \\ 

<code>
AVRDUDE = avrdude -q -V -p atmega328p -C /usr/local/CrossPack-AVR/etc/avrdude.conf -D -c arduino -b 115200 -P /dev/cu.usbmodem14101
</code>

changing:\\ 
<code>
/dev/cu.usbmodem14101
</code>

with the serial port where the Arduino is connected to, you can get it from the Arduino IDE Tools->Port, or via bash with 

<code>
ll /dev/ | grep cu.usbmodem
/usr/local/CrossPack-AVR/etc/avrdude.conf
</code>

with the folder where you have installed the AVR Crosspack/Toolchain, if different

save the Makefile and then run:\\ 

<code>
cd path/to/folder/c-blink
make clean
make
make flash
</code>

{{ :documentation:fa20:c-blink_mac.zip |}}

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