RISC FOTA

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Introduction

Our Workflow as below

Flow2.png

WISE-OTA

Server

Here we can upload our update package and depoly to devices

http://wise-ota.eastasia.cloudapp.azure.com/

Client

Our devices need to install OTA agent by default, so that devices can connect to OTA server.

OTA PACKAGE TOOL

This software is a package tool for WISE-PaaS/OTA system. You can use this tool to generate an OTA package which can be identified by the WISE-PaaS/OTA system based on your original update resources.

Architecture

Bootloader

It can detect the Update Flag is enabled or not

If flag is true ,it will enter Recovery System
If flag is false,it will enter Main System

System

We need two systems in our image.

One is Main System , another is Recovery System.

Both Systems have a specific script for FOTA.

  • Main System
do_update.sh
This script has three functions
  1. Record upgrade package file path
  2. Set Upgrade Flag
  3. Return OTA result
  • Recovery system
adv-ota.sh
This script has two functions
  1. Parse upgrade package and upgrade main system
  2. Clear Upgrade Flag, and reboot

Cache

For storage of downloaded OTA upgrade packages

Upgrade Packages

ota-package.sh

Generate package file to be used for OTA update on Yocto Linux

Platform

i.MX6

Quark

QCOM

Upgrade Steps

Online Upgrade

Local Upgrade