About

espHLG is a firmware for the ESP8266/8285 designed to run on the Helium Lite Gateway board.

Compile

1. Download version 2.2.x of the non-OS SDK from https://github.com/espressif/ESP8266_NONOS_SDK/archive/release/v2.2.x.tar.gz and extract it to your working folder:

    cd /your/downloads
    wget https://github.com/espressif/ESP8266_NONOS_SDK/archive/release/v2.2.x.tar.gz
    tar xvf v2.2.x.tar.gz -C ${WORK_FOLDER}
   

2. Get the toolchain from https://qtoggle.s3.amazonaws.com/various/xtensa-lx106-elf.tar.xz and extract it to your working folder:

    cd /your/downloads
    wget https://qtoggle.s3.amazonaws.com/various/xtensa-lx106-elf.tar.xz
    tar xvf xtensa-lx106-elf.tar.xz -C ${WORK_FOLDER}
   

3. Prepare the environment:

    export XTENSA_TOOLS_ROOT=${WORK_FOLDER}/xtensa-lx106-elf
    export SDK_BASE=${WORK_FOLDER}/ESP8266_NONOS_SDK-release-v2.2.x
    export PATH=${XTENSA_TOOLS_ROOT}/bin:$PATH
   

4. Clone this repo into your working folder:

    cd ${WORK_FOLDER}
    git clone [email protected]:ccrisan/esphlg.git
   

5. Apply required fixes/patches to the SDK:

    ${WORK_FOLDER}/esphlg/builder/fix-sdk.sh ${SDK_BASE}
   

6. Build the firmware using make:

    cd ${WORK_FOLDER}/esphlg
    make
   

   Your firmware should be waiting for you at ${WORK_FOLDER}/esphlg/build/firmware.bin. Just write it at address 0 on your ESP device.