setup - Raspberry Pi Pico

Install dependency

sudo apt-get update

sudo apt-get install git cmake automake autoconf

sudo apt-get install texinfo libtool libftdi-dev libusb-1.0-0-dev minicom

sudo apt-get install build-essential gcc-arm-none-eabi gcc

sudo apt-get install g++ libstdc++-arm-none-eabi-newlib gdb-multiarch

Download c/C++ SDK

Raspberry Pi Foundation already provided a script for Linux and Raspberry Pi OS, which automatically install prerequisites and download C/C++ SDK.

mkdir ~/pi_pico

cd ~/pi_pico

git clone https://github.com/raspberrypi/pico-sdk.git

cd pico-sdk/

git submodule update --init

cd ..

git clone -b master https://github.com/raspberrypi/pico-examples.git

git clone -b master https://github.com/raspberrypi/pico-extras.git

git clone -b master https://github.com/raspberrypi/pico-playground.git

Download and setup toolchain

cd ~/pi_pico
wget https://developer.arm.com/-/media/Files/downloads/gnu-rm/10.3-2021.10/gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2

tar -xf gcc-arm-none-eabi-10.3-2021.10-x86_64-linux.tar.bz2

export path

Better way to create a script in ~/pi_pico and source before compilation

ROOT_PATH=~/pi_pico

export PICO_SDK_PATH=$ROOT_PATH/pico-sdk
export PICO_EXAMPLES_PATH=$ROOT_PATH/pico-examples
export PICO_EXTRAS_PATH=$ROOT_PATH/pico-extras
export PICO_PLAYGROUND_PATH=$ROOT_PATH/pico-playground

export PICO_PLATFORM=rp2040

export PICO_TOOLCHAIN_PATH=$ROOT_PATH/gcc-arm-none-eabi-10.3-2021.10/bin

if [ ! -d $ROOT_PATH/FreeRTOS-Kernel ]; then
    echo "FreeRTOS-Kernel is not present"
else
    export FREERTOS_KERNEL_PATH=$ROOT_PATH/FreeRTOS-Kernel
fi

if [ ! -f $ROOT_PATH/picotool/build/picotool ]; then
        echo picotool is not present
elif [[ $PATH != *"$ROOT_PATH/picotool/build"* ]]; then
        export PATH=$PATH:$ROOT_PATH/picotool/build
fi

so, paste above script into a file called setenv.sh and source before compilation

source setenv.sh

Download and Setup Picotool

cd ~/pi_pico
git clone -b master https://github.com/raspberrypi/picotool.git
cd picotool
mkdir build
cd build
cmake ../
make

Download and Setup Picoprobe

cd ~/pi_pico
git clone -b master https://github.com/raspberrypi/picoprobe.git
cd picoprobe
mkdir build
cd build
cmake ../
make

Download and Setup Compiler OpenOCD

This tool will be used for debugging pico, if you don't want to debug then skip this step

cd ~/pi_pico
git clone https://github.com/raspberrypi/openocd.git --branch rp2040 --depth=1
cd openocd
./bootstrap
./configure --enable-picoprobe --enable-ftdi --enable-sysfsgpio --enable-bcm2835gpio
make

Download FreeRTOS

cd ~/pi_pico

git clone https://github.com/FreeRTOS/FreeRTOS-Kernel.git