This repository is for exercise of Embedded Operating System course (TKEE163251) in Electrical and Information Engineering of Universitas Gadjah Mada. The task is simple: blink the Raspberry Pi 3B internal LED based on student number. There are 5 digits in student number. The LED must blink with 200ms delay for each digit. There is a 2s delay between digits.

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You will need Raspberry Pi 3B for testing the actual code, but you don't need any Raspberry Pi 3B to compile, you can use the gcc arm eabi toolchain in another device such as Personal Computer.

You can install the ARM gcc with:

sudo apt install gcc-arm-none-eabi

make clean
make all

Copy the generated kernel7.img to your SD card, along with the Raspberry Pi boot files (bootloader.bin and start.elf).