#EmbeddedDevices

[forlinx]

A Comprehensive Guide to Screen Porting for the Forlinx Embedded 8M Series

Forlinx 8M Series Embedded Devices:

A Comprehensive Guide to Screen Porting! Discover the key configuration tips for MIPI and LVDS displays, master driver optimization methods, and achieve efficient and stable screen porting.

Learn More:

[qmshahzad]

Exploring the Potential of Flutter on Embedded Devices: A Game Changer 

[ineeddev]

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[pantechlearning]

An embedded system can define as a combination of computer hardware and software. They are design for a specific function. Nowadays there are heavy competitions for Embedded System Internships. Moreover, a lot of freshers and College Students are eagerly waiting to join as an Intern in this field.

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[liamaris]

Acuiti Labs develop next-generation embedded solutions and systems engineering solutions to help businesses gain a competitive edge.

[acuitilabs]

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[pantechelearning]

Explore latest EMBEDDED SYSTEM PROJECTS Embedded systems can define as a combination of computer hardware and software. They are design for a specific function. Embedded systems can also function within a larger system. Doing Embedded Systems Projects will help you to understand this core technology and also its wide variety of practical applications. Embedded Projects are Important for Engineering Students Pantech eLearning Chennai is an Online Learning Service provider. We are providing some latest projects based on Embedded Systems. All the project topics are absolutely free of cost. You will get lifetime accessibility when you book the Projects. So you can access them at anytime from anywhere. Also, we offer online guidance and teaching with top experts to support and assist you with your project. Visit our Website and Book your Projects Now. Website Link : https://lnkd.in/eF8WXat #embeddedsystemproject #embeddedsystem #embeddedsoftware #embeddedengineer #embeddeddesign #embeddedanalytics #embeddedsecurity #embeddedcomputing #embeddedprogramming #embeddeddevices #embeddedtechnology #technology #elearning #engineering #onlinelearning #project #chennai #india https://instagr.am/p/CJdHuxPJVu8/

[forlinx]

Forlinx 8M Series Embedded Devices: A Comprehensive Guide to Screen Porting! Discover the key configuration tips for MIPI and LVDS displays, master driver optimization methods, and achieve efficient and stable screen porting.

[forlinx]

Upgrade of OTA System Based on Forlinx OK3568-C Single Board Computer

OTA is a way to upgrade the system for the device without loss, and can remotely deploy new functions to the product. We can not only download the OTA upgrade package through the network, but also upgrade the device by downloading the OTA upgrade package to the SD card or U disk.

In this article, we will introduce the OTA upgrade process, the process of local upgrade program recovery, and the technical details of the upgrade through the Forlinx Embedded OK3568-C development board.

1. Making recovery.img

Recovery The associated source code path:

buildroot/output/OK3568-recovery/build/recovery-develop

If any of the source files in the above directory have been modified, you need to perform the following actions:

(1). forlinx@ubuntu:~/OK3568-linux-source$ source envsetup.sh

(2). Select the recovery configuration for a platform and enter 96

(3). forlinx@ubuntu:~/OK3568-linux-source$ make recovery-dirclean && make recovery  #Clear the compilation product and recompile

(4). forlinx@ubuntu:~/OK3568-linux-source$ make rkupdate-dirclean && make rkupdate  #Clear the compilation product and recompile

If you have not modified the source code files in the above directory, then do the following directly:

(1). forlinx@ubuntu:~/OK3568-linux-source$ ./build.sh recovery  #compile to generate recovery.img

(2). forlinx@ubuntu:~/OK3568-linux-source$ ./mkfirmware.sh

# Copy the generated firmware to the rockdev/ directory

Flash/OK3568-linux-source/buildroot/output/OK3568-recovery/images/recovery.img file.

Click Device Partition Table, tick 9, select recovery path, and click Execute.

2. Make an upgrade image

How to verify that the upgrade was successful? We need to have a preliminary understanding of the boot.img file holds the device tree and kernel, and we just need to make appropriate changes to the device tree or kernel. This routine updates the boot.img file as an example, with appropriate changes to the device tree.

Modify the device tree：

/OK3568-linux-source/kernel/arch/arm64/boot/dts/rockchip/OK3568-C-common.dtsi，Modify the forlinx _ control node as follows. By default, only the HDMI output is turned on, leaving the MIPI and LVDS outputs off.

Modify the file：

/OK3568-linux-source/tools/linux/Linux_Pack_Firmware/rockdev/package-file

Modify this file as required, this routine updates boot.img as an example, so comment out the other .img files. Users can adjust this file to meet product update requirements.

This routine takes the example of modifying the device tree display and recompiling the kernel after modifying the device tree.

forlinx@ubuntu:~ /OK3568-linux-source$ ./build.sh kernel #modify the device tree, then regenerate the kernel

forlinx@ubuntu:~/OK3568-linux-source$ ./build.sh updateimg #package Upgrade Package Firmware

Use /Ok3568--linux-source/rockdev/update.img file to upgrade.

3. Upgrade operation

SD card or USB flash drive upgrade

Mount the SD card or USB disk to the /run/media directory of the OK3568-C development board by default. Copy the update.img image file to the /userdata directory of the OK3568-C development board, and the system will detect the upgrade package in this directory and upgrade it automatically after rebooting the board.

FTP server upgrade

Execute the following command on the OK3568-C development board to copy the upgrade package file from the server to the development board for upgrading.

After the download is complete use the following command to upgrade:

update ota /userdata/update.img

During the upgrade process, the device will enter recovery mode and upgrade automatically, after the upgrade is successful, it will enter the normal normal system.

4. Verify the test results

Power up the OK3568-C development board and the serial terminal will enter the uboot screen selection interface by holding down the space bar. The phenomenon of flashing default factory image files: by default, HDMI, MIPI, and LVDS three outputs are enabled.

Phenomenon after flashing upgrade package image file: Only HDMI display is enabled, and the other two outputs are closed.

5. Safety instructions

When creating the update.img firmware, remember you can choose to include all partitions or just specific ones. Modify the package-file to remove unnecessary partitions, reducing the update.img size.

If ''recovery.img'' is included in the ''package-file,'' it won't be upgraded in Recovery mode. To prevent issues where power loss during recovery.img upgrading could disrupt the upgrade of other partitions, it's recommended to upgrade this partition under normal system mode. When executing the update command, the system will first check if ''recovery.img'' is included in the update.img package. If so, it will upgrade the recovery partition before entering Recovery mode to upgrade other partition firmware.

It's not recommended to include the ''misc'' partition in the update.img. Even if it's included, the upgrade program will ignore it when detected. Even if the ''misc'' partition is upgraded, the recovery program will still clear all commands and parameters in the ''misc'' partition after a successful upgrade, which may not yield the expected results.

If the update.img package is placed in the ''userdata'' partition in flash memory, ensure that ''userdata.img'' is not included in the package-file. This is because it may lead to file system damage, potentially causing the OEM or user data partition to fail to mount successfully after the upgrade. If upgrading from an SD card or USB disk, you can pack user data. img to upgrade the user data partition. After the upgrade is completed, the user data partition will be re-sized.

With that, the entire process of OTA upgrades has been explained. Users can follow the instructions in this article for experimentation. Once they are familiar with the operations described in this article, they can modify U-Boot, the kernel, or the file system to remotely upgrade their products via OTA. This enables them to fix bugs in their products, making it more convenient to optimize and iterate on their products.

Originally published at www.forlinx.net.

[liamaris]

Embedded Services by Acuiti Labs covers the complete software stack of an embedded device, from device drivers to kernel services, multimedia, middle ware, connectivity & applications.

[liamaris]

Owing to embedded systems, can make a lot of your daily activities quick and easy. Learn how Acuiti Labs’ embedded system solutions can fit into your requirements.

[liamaris]

Make use of latest innovative technologies to help business gain a competitive edge just like Embedded Solutions used to rapidly create, launch and maintain connected devices

[liamaris]

Acuiti Labs Embedded solutions covers the complete software stack of an embedded device, from device drivers to kernel services, multimedia, middle ware, connectivity & applications.

[acuitilabs]

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