Yocto - Embedded Linux Distribution MakerSherif Mousa
Yocto is an Embedded Linux distribution maker.
This presentation is a quick start guide for Yocto buildsystem to get familiar with the tool and how to start building your own custom Linux system for a specific hardware target.
Bootloader utilizes to program microcontrollers by providing a medium of communication between them. Hence small bootloader uses to make controller programmable very often as like Arduino series board. Microcontrollers like 8051, PIC without bootloader requires the external programmer to burn the program inside the memory of the microcontroller. In addition to it requires preciously control output states of various pin mode which should be in sequence according to the datasheet of the manufacturer. Here this PPT has portrayed as an example of idle configurations that requires to run the bootloader and what happens if the bootloader is installed inside the memory of the controller.
Buildroot is a set of Makefiles and patches that makes it
easy to generate a complete embedded Linux system. It generates root file system images ready to be used. Complete build system based on the Linux Kernel configuration system and supports a wide range of target architectures. Here is a presentation that gives a practical quick start to build-root.
LCU14 302- How to port OP-TEE to another platformLinaro
LCU14 302- How to port OP-TEE to another platform
---------------------------------------------------
Speaker: Joakim Bech, Jens Wiklander and Pascal Brand
Date: September 17, 2014
---------------------------------------------------
★ Session Summary ★
OP-TEE (Open Portable Trusted Execution Environment) is the source code for the TEE in Linux using the ARM Trustzone technology. This component meets the Global Platform TEE System Architecture specification. Most of the code is generic. However, a number of platform specific characteristics are addressed, such as memory layout or board specific hardware IP. In this session, you can learn the steps to follow to port OP-TEE for your armv7 platform, as the ones that have been defined when porting OP-TEE to A80 (SWG-77). OP-TEE to the Allwinner A80 platform
---------------------------------------------------
★ Resources ★
Zerista: http://lcu14.zerista.com/event/member/137748
Google Event: https://plus.google.com/u/0/events/cnd044lmnid6jcoj1a9svlhmkj0
Video: https://www.youtube.com/watch?v=QgaGJow7hws&list=UUIVqQKxCyQLJS6xvSmfndLA
Etherpad: http://pad.linaro.org/p/lcu14-302
---------------------------------------------------
★ Event Details ★
Linaro Connect USA - #LCU14
September 15-19th, 2014
Hyatt Regency San Francisco Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
This presentation is about creating software for for hardware which does not exist yet. In particular, it explains how to add support of new hardware to QEMU (I2C Accelerometer), how to simulate new hardware, write a simple application to work with accelerometer, and demonstrate that it works on the real platform as well as under QEMU.
Presentation by Igor Kaplinsky (Senior Embedded Software Developer, GlobalLogic, Kyiv), Taras Protsiv (Embedded Software Developer GlobalLogic, Kyiv), and Volodymyr Shymanskyy (Embedded Software Developer, GlobalLogic, Kyiv), Embedded TechTalk, Lviv, 2014.
More details -
http://www.globallogic.com.ua/press-releases/embedded-lviv-techtalk-2-coverage
How to Choose a Software Update Mechanism for Embedded Linux DevicesLeon Anavi
How to Choose a Software Update Mechanism for Embedded Linux Devices
by Leon Anavi, Konsulko Group
Embedded Linux Conference NA 2022 and Open Source Summit NA 2022
Atomic software system update of an embedded Linux device has always been an important part of any product, especially nowadays with the existing large fleets of connected devices and Internet of Things. There are several different widely used in the industry approaches: A/B updates with dual redundant scheme, delta updates, container-based updates and combined strategies. Open source technologies such as Mender, RAUC and libostree based solutions implement these strategies and provide tools to manage updates of multiple devices. What are the advantages and disadvantages? How to choose an appropriate open source solution for a specific project? This session explores a number of different open source Linux software update technologies with practical examples for integrating them using the Yocto Project and OpenEmbedded. In order to better understand the strengths and weaknesses of each technology, we deep dive in various use cases. The talk is appropriate for anyone with basic knowledge about Linux. It will hopefully help managers, engineers and developers better understand the technical challenges and the available open source solutions with which to overcome them easier and faster so that they can focus on the unique core features of their products.
LCU14-107: OP-TEE on ARMv8
---------------------------------------------------
Speaker: Jens Wiklander
Date: September 15, 2014
---------------------------------------------------
★ Session Summary ★
SWG is porting OP-TEE to ARMv8 using Fixed Virtual Platform. Initially OP-TEE is running secure world in aarch32 mode, but with the normal world code running in aarch64 mode. Since ARMv8 uses ARM Trusted Firmware we have patched it with an OP-TEE dispatcher to be able to communicate between secure and normal world.
---------------------------------------------------
★ Resources ★
Zerista: http://lcu14.zerista.com/event/member/137710
Google Event: https://plus.google.com/u/0/events/c0ef114n77bhgbns9vb85g9n6ak
Presentation: http://www.slideshare.net/linaroorg/lcu14-107-optee-on-ar-mv8
Video: https://www.youtube.com/watch?v=JViplz-ah9M&list=UUIVqQKxCyQLJS6xvSmfndLA
Etherpad: http://pad.linaro.org/p/lcu14-107
---------------------------------------------------
★ Event Details ★
Linaro Connect USA - #LCU14
September 15-19th, 2014
Hyatt Regency San Francisco Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
The U-Boot is an "Universal Bootloader" ("Das U-Boot") is a monitor program that is under GPL. This production quality boot-loader is used as default boot loader by several board vendors. It is easily portable and easy to port and to debug by supporting PPC, ARM, MIPS, x86,m68k, NIOS, Microblaze architectures. Here is a presentation that introduces U-Boot.
Presentation by Hansang Lee
Automotive Software Engineering
Technical University of Chemnitz
13th May 2019
This presentation is mainly about,
- Basic Knowledge of AUTOSAR
- Task Scheduling Concepts on AUTOSAR with Multicore Supporing
How to install printer driver into the PC samil copy
안녕하세요. (주)삼일씨엔에스 입니다.
후지제록스 DocuCentre SC2020의 프린터 드라이버를 PC에 설치하는 방법을 제작했습니다.
이 메뉴얼을 잘 활용하시어 드라이버 설치를 수월히하시길 바랍니다.
This is SAMIL C&S corporation.
We lease and maintain of office equipment to other companies.
We recently make manual 'How to install printer driver into the PC'.
This is limited to Fuji Xerox DocuCentre SC2020.
I hope you install the PC driver very easily.
Thank you.
Yocto - Embedded Linux Distribution MakerSherif Mousa
Yocto is an Embedded Linux distribution maker.
This presentation is a quick start guide for Yocto buildsystem to get familiar with the tool and how to start building your own custom Linux system for a specific hardware target.
Bootloader utilizes to program microcontrollers by providing a medium of communication between them. Hence small bootloader uses to make controller programmable very often as like Arduino series board. Microcontrollers like 8051, PIC without bootloader requires the external programmer to burn the program inside the memory of the microcontroller. In addition to it requires preciously control output states of various pin mode which should be in sequence according to the datasheet of the manufacturer. Here this PPT has portrayed as an example of idle configurations that requires to run the bootloader and what happens if the bootloader is installed inside the memory of the controller.
Buildroot is a set of Makefiles and patches that makes it
easy to generate a complete embedded Linux system. It generates root file system images ready to be used. Complete build system based on the Linux Kernel configuration system and supports a wide range of target architectures. Here is a presentation that gives a practical quick start to build-root.
LCU14 302- How to port OP-TEE to another platformLinaro
LCU14 302- How to port OP-TEE to another platform
---------------------------------------------------
Speaker: Joakim Bech, Jens Wiklander and Pascal Brand
Date: September 17, 2014
---------------------------------------------------
★ Session Summary ★
OP-TEE (Open Portable Trusted Execution Environment) is the source code for the TEE in Linux using the ARM Trustzone technology. This component meets the Global Platform TEE System Architecture specification. Most of the code is generic. However, a number of platform specific characteristics are addressed, such as memory layout or board specific hardware IP. In this session, you can learn the steps to follow to port OP-TEE for your armv7 platform, as the ones that have been defined when porting OP-TEE to A80 (SWG-77). OP-TEE to the Allwinner A80 platform
---------------------------------------------------
★ Resources ★
Zerista: http://lcu14.zerista.com/event/member/137748
Google Event: https://plus.google.com/u/0/events/cnd044lmnid6jcoj1a9svlhmkj0
Video: https://www.youtube.com/watch?v=QgaGJow7hws&list=UUIVqQKxCyQLJS6xvSmfndLA
Etherpad: http://pad.linaro.org/p/lcu14-302
---------------------------------------------------
★ Event Details ★
Linaro Connect USA - #LCU14
September 15-19th, 2014
Hyatt Regency San Francisco Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
This presentation is about creating software for for hardware which does not exist yet. In particular, it explains how to add support of new hardware to QEMU (I2C Accelerometer), how to simulate new hardware, write a simple application to work with accelerometer, and demonstrate that it works on the real platform as well as under QEMU.
Presentation by Igor Kaplinsky (Senior Embedded Software Developer, GlobalLogic, Kyiv), Taras Protsiv (Embedded Software Developer GlobalLogic, Kyiv), and Volodymyr Shymanskyy (Embedded Software Developer, GlobalLogic, Kyiv), Embedded TechTalk, Lviv, 2014.
More details -
http://www.globallogic.com.ua/press-releases/embedded-lviv-techtalk-2-coverage
How to Choose a Software Update Mechanism for Embedded Linux DevicesLeon Anavi
How to Choose a Software Update Mechanism for Embedded Linux Devices
by Leon Anavi, Konsulko Group
Embedded Linux Conference NA 2022 and Open Source Summit NA 2022
Atomic software system update of an embedded Linux device has always been an important part of any product, especially nowadays with the existing large fleets of connected devices and Internet of Things. There are several different widely used in the industry approaches: A/B updates with dual redundant scheme, delta updates, container-based updates and combined strategies. Open source technologies such as Mender, RAUC and libostree based solutions implement these strategies and provide tools to manage updates of multiple devices. What are the advantages and disadvantages? How to choose an appropriate open source solution for a specific project? This session explores a number of different open source Linux software update technologies with practical examples for integrating them using the Yocto Project and OpenEmbedded. In order to better understand the strengths and weaknesses of each technology, we deep dive in various use cases. The talk is appropriate for anyone with basic knowledge about Linux. It will hopefully help managers, engineers and developers better understand the technical challenges and the available open source solutions with which to overcome them easier and faster so that they can focus on the unique core features of their products.
LCU14-107: OP-TEE on ARMv8
---------------------------------------------------
Speaker: Jens Wiklander
Date: September 15, 2014
---------------------------------------------------
★ Session Summary ★
SWG is porting OP-TEE to ARMv8 using Fixed Virtual Platform. Initially OP-TEE is running secure world in aarch32 mode, but with the normal world code running in aarch64 mode. Since ARMv8 uses ARM Trusted Firmware we have patched it with an OP-TEE dispatcher to be able to communicate between secure and normal world.
---------------------------------------------------
★ Resources ★
Zerista: http://lcu14.zerista.com/event/member/137710
Google Event: https://plus.google.com/u/0/events/c0ef114n77bhgbns9vb85g9n6ak
Presentation: http://www.slideshare.net/linaroorg/lcu14-107-optee-on-ar-mv8
Video: https://www.youtube.com/watch?v=JViplz-ah9M&list=UUIVqQKxCyQLJS6xvSmfndLA
Etherpad: http://pad.linaro.org/p/lcu14-107
---------------------------------------------------
★ Event Details ★
Linaro Connect USA - #LCU14
September 15-19th, 2014
Hyatt Regency San Francisco Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
The U-Boot is an "Universal Bootloader" ("Das U-Boot") is a monitor program that is under GPL. This production quality boot-loader is used as default boot loader by several board vendors. It is easily portable and easy to port and to debug by supporting PPC, ARM, MIPS, x86,m68k, NIOS, Microblaze architectures. Here is a presentation that introduces U-Boot.
Presentation by Hansang Lee
Automotive Software Engineering
Technical University of Chemnitz
13th May 2019
This presentation is mainly about,
- Basic Knowledge of AUTOSAR
- Task Scheduling Concepts on AUTOSAR with Multicore Supporing
How to install printer driver into the PC samil copy
안녕하세요. (주)삼일씨엔에스 입니다.
후지제록스 DocuCentre SC2020의 프린터 드라이버를 PC에 설치하는 방법을 제작했습니다.
이 메뉴얼을 잘 활용하시어 드라이버 설치를 수월히하시길 바랍니다.
This is SAMIL C&S corporation.
We lease and maintain of office equipment to other companies.
We recently make manual 'How to install printer driver into the PC'.
This is limited to Fuji Xerox DocuCentre SC2020.
I hope you install the PC driver very easily.
Thank you.
도커 무작정 따라하기: 도커가 처음인 사람도 60분이면 웹 서버를 올릴 수 있습니다!pyrasis
도커 무작정 따라하기
- 도커가 처음인 사람도 60분이면 웹 서버를 올릴 수 있습니다!
도커의 기본 개념부터 설치와 사용 방법까지 설명합니다.
더 자세한 내용은 가장 빨리 만나는 도커(Docker)를 참조해주세요~
http://www.pyrasis.com/private/2014/11/30/publish-docker-for-the-really-impatient-book
CyberConnect2에서는 2013년부터 DirectX11세대용 멀티플랫폼엔진 개발을 시작하였으며, 제작 시 발생하였던 문제점을 DirectX9와의 차이점을 바탕으로 공유하고자 합니다.
이 세션은 DirectX11의 개발이 처음이거나 관심 있으신 분을 대상으로 합니다. Tessellation 이나 OIT와 같은 최신기술은 다루지 않으므로 주의하시기 바랍니다.
[1장] 파이썬 개발환경 구축하기 | 수학 통계를 몰라도 이해할 수 있는 쉬운 딥러닝Byunghyun Ban
* SlideShare 오류로 빈 화면이 나올 경우 다운로드하여 이용해주시기 바랍니다.
<수학 통계를 몰라도 이해할 수 있는 쉬운 딥러닝, 2021, 생능북스> 의 수업용 ppt 자료입니다. 교재로 활용하실 경우 출판사를 통해 한 학기 분량의 PPT를 제공받으실 수 있습니다.
9. 펌웨어 이미지 생성
● 부트로더에서 펌웨어 버전을 확인 할 수 있도록 특정 위치에 펌웨어 버전을
위치시킴
프로젝트
Build
펌웨어 버전
인터럽트 벡터
펌웨어 Binary
펌웨어 코드
0x08040000
0x08040800
0x08041000
10. FLASH
펌웨어 이미지 생성
● 프로젝트 빌드 후에 생성된 펌웨어 Binary에 대한 정보를 Tag정보로 Flash에
저장
○ Tag는 펌웨어 Binary의 유효성 검증용
펌웨어
Binary
프로젝트
Build
펌웨어
Binary
Tag
다운로드 프로그램
Tag
펌웨어
Binary
15. 프로토콜 데이터 수신 처리
CMD_STATE_WAIT_STX
CMD_STATE_WAIT_CMD
CMD_STATE_WAIT_LENGTH_L
CMD_STATE_WAIT_LENGTH_H
CMD_STATE_WAIT_DATA
CMD_STATE_WAIT_CHECKSUM
CMD_STATE_WAIT_ETX
16. 데이터 송/수신 타임아웃
Host Slave
STX
CMD_STATE_WAIT_STX
CMD_STATE_WAIT_CMD
CMD
CMD_STATE_WAIT_CMD
CMD_STATE_WAIT_STX
Timeout 발생
● Host->Slave로 전송하는 바이트 사이의 타임아웃 발생 처리
17. 데이터 송/수신 타임아웃
Host Slave
명령 송신
Timeout 발생
● Host->Slave로 전송하는 명령어 패킷에 대한 응답 타임아웃 발생 처리
응답 송신
명령 재송신
응답 송신
19. 명령어 처리 순서
● cmdReceivePacket함수에서 통신 프로토콜 분석 후 정상 패킷 수신
● 수신된 패킷의 명령어에 따라 해당 함수를 수행함
cmdReceivePacket()
bootProcessCmd()
20. 펌웨어 다운로드 순서
Host Slave
명령 송신
응답 송신
ReadVersion
버전 정보 송부
ReadBoardName
보드 이름 송부
FlashEraseFw
펌웨어 영역을 지움
21. 펌웨어 다운로드 순서
Host Slave
명령 송신
응답 송신
FlashWriteFw
수신된 데이터 만큼
Flash에 저장
FlashWriteTag
FlashVerifyFw Flash에 저장된 펌웨어여여의
Check Sum을 구하고 Tag의
Check Sum과 비교
Tag 정보 Flash에 저장
JumpToFw
펌웨어를 실행함
