esp32-timer

• Setting up ESP-IDF

A timing app designed to run on my Odroid-GO.

Setting up ESP-IDF

See docs.

The following is to set up the toolchain by building as much of it from source as the docs have specified. While I could download a binary, I like the idea of compiling from source in case their website goes down. I'm doing this on Ubuntu 18.04.

# Dependencies
sudo apt-get install git wget libncurses-dev flex bison gperf python python-pip python-setuptools python-serial python-click python-cryptography python-future python-pyparsing python-pyelftools cmake ninja-build ccache libffi-dev libssl-dev gawk gperf grep gettext python python-dev automake bison flex texinfo help2man libtool libtool-bin make

# Submodules
cd Dependencies/esp-idf/
git submodule update --init

# Crosstool - this builds GCC for ESP32. This will take a while (27 minutes in my case)
cd ../crosstool-NG/
git submodule update --init
./bootstrap && ./configure --enable-local && make
./ct-ng xtensa-esp32-elf
./ct-ng build
chmod -R u+w builds/xtensa-esp32-elf

cd ../../
mkdir -p tools
IDF_TOOLS_PATH=$PWD/tools
cd Dependencies/esp-idf/
# TODO: This doesn't actually use the GCC I built, nor the tools path...
./install.sh