Firmware Upgrade in RPI - RDK Camera - User Manual - 2020 - M5

Introduction

The Firmware upgrade will upgrade higher or lower version of the current image in RPI target with the help of Xconf server and Local TFTP server.

This page dedicated to bringing up and validation of Firmware upgrade in R-Pi Zero. 

Required Equipment

• Raspberry Pi 0 Device
• SD Card
• Power Cable
• OTG Cable
• Standard USB keyboard
• Mini HDMI connector
• HDMI Cable
• Television set/monitor with HDMI input

System Setup

Refer below link for RPI-0 Environment setup

RDK-C Environment Setup

Yocto Build Steps

Refer below link to build camera image

RDK-C Build Instructions for R-Pi

Image Flash Procedure

$ sudo dd if="Image Name" of="Device Name" bs=4M

Example:
sudo dd if=rdk-generic-camera-image_default_20200130060729.rootfs.rpi-sdimg of=/dev/sdb bs=4M

Test Setup Block Diagram for RPI RDK-C Firmware Upgrade

Firmware Upgrade Validation Procedure

TFTP Server Setup

STEP 1:

Install xinetd and tftpd-hpa application in your local PC to setup tftp server by using below command

sudo apt-get install xinetd
sudo apt-get install tftpd-hpa

STEP 2:

Create checksum file for your upgrading image.

md5sum "<imagefile_name>.rootfs.rpi-sdimg" > imagefile_name.txt

for Ex:
upgrading image file is rdk-generic-camera-image_default_20200329074421.rootfs.rpi-sdimg
md5sum "rdk-generic-camera-image_default_20200329074421.rootfs.rpi-sdimg" > rdk-generic-camera-image_default_20200329074421.txt

STEP 3:

Create new folder for example "tfphome" in your PC home direcotry to maintain checksum file and upgrading image file.

Keep upgrading image file and checksum file in your created folder for example "tftphome"

for Ex:

Keep rdk-generic-camera-image_default_20200329074421.rootfs.rpi-sdimg and rdk-generic-camera-image_default_20200329074421.txt files in your tftphome folder.

STEP 4:

Check tftp file is there or not in /etc/xinetd.d/ directory. if it is not there then create tftp file under this /etc/xinetd.d/ direcotry and add below content.

vi /etc/xinetd.d/tftp

service tftp
{
protocol        = udp
port            = 69
socket_type     = dgram
wait            = yes
user            = nobody
server          = /usr/sbin/in.tftpd
server_args     = -c -v -s /home/sumitha/tftphome
disable         = no
}

STEP 5:

Verify /etc/default/tftpd-hpa file content

vi /etc/default/tftpd-hpa

# /etc/default/tftpd-hpa

TFTP_USERNAME="tftp"
TFTP_DIRECTORY="/home/xyz/tftphome" ( Give upgrading file and checksum file maintained directory )
TFTP_ADDRESS="0.0.0.0:69"
TFTP_OPTIONS="--secure"

STEP 6:

Start tftp server and xinetd server

sudo apt-get install xinetd
sudo apt-get install tftpd-hpa