Embitude's Linux SPI Drivers Training Slides. Contains the details of AM335X specific low level programming, SPI components such as SPI Master Driver, SPI Client Driver, Device Tree for SPI
LAS16-TR06: Remoteproc & rpmsg development
Speakers: Bjorn Andersson
Date: September 28, 2016
★ Session Description ★
Today the remoteproc & rpmsg code available in mainline serves as a base for numerous out-of-tree implementations, ranging from bug fixes to larger feature additions. As we’re discussing how to bring these additions towards mainline a common set of topics shows up between the various trees. This talk serves to give an insight into these discussions, ongoing work and connect people with interest in these subsystems.
★ Resources ★
Etherpad: pad.linaro.org/p/las16-tr06
Presentations & Videos: http://connect.linaro.org/resource/las16/las16-tr06/
★ Event Details ★
Linaro Connect Las Vegas 2016 – #LAS16
September 26-30, 2016
http://www.linaro.org
http://connect.linaro.org
Embitude's Linux SPI Drivers Training Slides. Contains the details of AM335X specific low level programming, SPI components such as SPI Master Driver, SPI Client Driver, Device Tree for SPI
LAS16-TR06: Remoteproc & rpmsg development
Speakers: Bjorn Andersson
Date: September 28, 2016
★ Session Description ★
Today the remoteproc & rpmsg code available in mainline serves as a base for numerous out-of-tree implementations, ranging from bug fixes to larger feature additions. As we’re discussing how to bring these additions towards mainline a common set of topics shows up between the various trees. This talk serves to give an insight into these discussions, ongoing work and connect people with interest in these subsystems.
★ Resources ★
Etherpad: pad.linaro.org/p/las16-tr06
Presentations & Videos: http://connect.linaro.org/resource/las16/las16-tr06/
★ Event Details ★
Linaro Connect Las Vegas 2016 – #LAS16
September 26-30, 2016
http://www.linaro.org
http://connect.linaro.org
HKG18-411 - Introduction to OpenAMP which is an open source solution for hete...Linaro
Session ID: HKG18-411
Session Name: HKG18-411 - Introduction to OpenAMP which is an open source solution for heterogeneous system orchestration and communication
Speaker: Wendy Liang
Track: IoT, Embedded
★ Session Summary ★
Introduction to OpenAMP which is an open source solution for heterogeneous system orchestration and communication
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-411/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-411.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-411.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: IoT, Embedded
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
This presentation is about U-Boot: the most popular open source, primary boot loader used in embedded devices, as well as it's mechanisms and features.
The respective talk was held by Sam Protsenko (Software Engineer, Consultant, GlobalLogic) at GlobalLogic Mykolaiv Embedded TechTalk #1 on May 25, 2018.
Presentation for a lecture in the doctoral series at Stefan cel Mare University, Suceava, Romania, May 2009.
Aim was to show current generation the rich history of computer hardarware and that many of the recent innovations in CPU design have their origins in designs of teh 50s and 60s.
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
Lcu14 306 - OP-TEE Future Enhancements
---------------------------------------------------
Speaker: Joakim Bech, Jens Wiklander and Pascal Brand
Date: September 17, 2014
---------------------------------------------------
★ Session Summary ★
In this discussion session, we will cover the plans Linaro have to enhance the current OP-TEE implementation. Different topics will be covered, among them: Adding a cryptographic layer to support custom cryptographic libraries or HW-acceleration IP / instructions (REQ-413 and REQ-421) PSCI support (REQ-415) Add ECC support for TEE Internal API 1.1 (REQ-419)
---------------------------------------------------
★ Resources ★
Zerista: http://lcu14.zerista.com/event/member/137753
Google Event: https://plus.google.com/u/0/events/cq01taemqeeblb8k8jnu21lifus
Video: https://www.youtube.com/watch?v=GTKEmdUU1lE&list=UUIVqQKxCyQLJS6xvSmfndLA
Etherpad: http://pad.linaro.org/p/lcu14-306
---------------------------------------------------
★ Event Details ★
Linaro Connect USA - #LCU14
September 15-19th, 2014
Hyatt Regency San Francisco Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
U-Boot, a boot loader for Embedded boards based on PowerPC, ARM, MIPS and several other processors, which can be installed in a boot ROM and used to initialize and test the hardware or to download and run application
code.
or "Towards a Standard TAPI", presented at AUSOUG Connect Perth, November 2016. I've been using a combination of Table APIs and Transaction APIs to build complex but maintainable applications in Apex - something I encourage everyone to at least consider.
XPDDS18: The Art of Virtualizing Cache Maintenance - Julien Grall, ArmThe Linux Foundation
The Arm architecture allows for a wide variety of cache configurations, levels and features. This enables building systems that will optimally fit power/area budgets set for the target application.
A consequence of this is that architecturally compliant software has to cater for a much wider range of behaviors than on other architectures. While most software uses cache instructions that don't need special treatment in a virtualized environment, some will want to directly manage a given cache using set/way instructions and will introduce challenges for the hypervisor to handle them.
This talk will give an overview of how caches behave in the Arm architecture, especially in the context of virtualization. It will then describe the problem of using set/way instructions in a virtualized environment. We will also discuss the modifications required in Xen to handle those instructions.
HKG18-411 - Introduction to OpenAMP which is an open source solution for hete...Linaro
Session ID: HKG18-411
Session Name: HKG18-411 - Introduction to OpenAMP which is an open source solution for heterogeneous system orchestration and communication
Speaker: Wendy Liang
Track: IoT, Embedded
★ Session Summary ★
Introduction to OpenAMP which is an open source solution for heterogeneous system orchestration and communication
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-411/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-411.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-411.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: IoT, Embedded
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
This presentation is about U-Boot: the most popular open source, primary boot loader used in embedded devices, as well as it's mechanisms and features.
The respective talk was held by Sam Protsenko (Software Engineer, Consultant, GlobalLogic) at GlobalLogic Mykolaiv Embedded TechTalk #1 on May 25, 2018.
Presentation for a lecture in the doctoral series at Stefan cel Mare University, Suceava, Romania, May 2009.
Aim was to show current generation the rich history of computer hardarware and that many of the recent innovations in CPU design have their origins in designs of teh 50s and 60s.
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
Lcu14 306 - OP-TEE Future Enhancements
---------------------------------------------------
Speaker: Joakim Bech, Jens Wiklander and Pascal Brand
Date: September 17, 2014
---------------------------------------------------
★ Session Summary ★
In this discussion session, we will cover the plans Linaro have to enhance the current OP-TEE implementation. Different topics will be covered, among them: Adding a cryptographic layer to support custom cryptographic libraries or HW-acceleration IP / instructions (REQ-413 and REQ-421) PSCI support (REQ-415) Add ECC support for TEE Internal API 1.1 (REQ-419)
---------------------------------------------------
★ Resources ★
Zerista: http://lcu14.zerista.com/event/member/137753
Google Event: https://plus.google.com/u/0/events/cq01taemqeeblb8k8jnu21lifus
Video: https://www.youtube.com/watch?v=GTKEmdUU1lE&list=UUIVqQKxCyQLJS6xvSmfndLA
Etherpad: http://pad.linaro.org/p/lcu14-306
---------------------------------------------------
★ Event Details ★
Linaro Connect USA - #LCU14
September 15-19th, 2014
Hyatt Regency San Francisco Airport
---------------------------------------------------
http://www.linaro.org
http://connect.linaro.org
U-Boot, a boot loader for Embedded boards based on PowerPC, ARM, MIPS and several other processors, which can be installed in a boot ROM and used to initialize and test the hardware or to download and run application
code.
or "Towards a Standard TAPI", presented at AUSOUG Connect Perth, November 2016. I've been using a combination of Table APIs and Transaction APIs to build complex but maintainable applications in Apex - something I encourage everyone to at least consider.
XPDDS18: The Art of Virtualizing Cache Maintenance - Julien Grall, ArmThe Linux Foundation
The Arm architecture allows for a wide variety of cache configurations, levels and features. This enables building systems that will optimally fit power/area budgets set for the target application.
A consequence of this is that architecturally compliant software has to cater for a much wider range of behaviors than on other architectures. While most software uses cache instructions that don't need special treatment in a virtualized environment, some will want to directly manage a given cache using set/way instructions and will introduce challenges for the hypervisor to handle them.
This talk will give an overview of how caches behave in the Arm architecture, especially in the context of virtualization. It will then describe the problem of using set/way instructions in a virtualized environment. We will also discuss the modifications required in Xen to handle those instructions.
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.
5. 초기화 코드
(initialization code)
1. 스택포인터 설정
2. 영상표시장치 20h 로 초기화 및
커서 위치 설정.
3. 인터럽트 활성화 EI(Enable Interrupt)
4. HLT
6. 키보드
1. 키입력
2. 마이크로프로세서의 인터럽트 신호 발생
3. 키보드 처리 프로그램에서
IN 명령으로 키 판단
4. 키 처리
5. RET 명령어로 HLT로 복귀.
7. 키입력 처리
✦ 입력키가 문자, 숫자, 구두점에 해당되면,
키보드 스캔 코드을 이용하여 Shift키가 눌렸
는지 여부를 확인하여 정확한 ASCII 부호를
결정.
✦ 영상표시장치에 커서 위치 메모리에 기록.
✦ 키입력을 반향(echo)시킨다라고 함.
8. 키보드 처리 프로그램
(추가 명령)
✦ W, D, R
✦ W 1020 35 4F 78 23 9B AC 67 ; Write
✦ D 1030 ; Display
✦ R 1000 ; Run
9. ROM
✦ 초기화 코드, 각종 처리 프로그램을 제어판
을 이용하여 입력하지 말고, 키보드를 이용.
✦ 전원을 꺼도 저장되도록 읽기 전용 메모리
(ROM)에 저장.
✦ 8080 -> ROM 을 0000h 주소로 설정.
10. 디스크
✦ 프로그램과 데이터를 디스크에 저장
✦ 전원이 꺼지면 데이터가 사라지는 RAM보다
안전하며, ROM에 저장하는 것보다 쉽게 변
경 가능
11. 파일 시스템
✦ S 2080 2 15 3 ; Store
✦ L 2080 2 15 3 ; Load
✦ 디스크 저장장치에 있는 데이터가 파일의 형
태를 가지도록 만드는 방법.
12. 운영체제
✦ 파일 시스템, 키보드 처리 프로그램과 명령
어 처리기... 운영체제의 일부.
13. CP/M
✦ CP/M (Control Program for Micros)
✦ 8080 마이크로프로세서
✦ 게리 킬달
✦ 8인치 단면 디스켓
✦ 77트랙, 트랙당 26섹터, 섹터당 128바이트
✦ 총 256,256 바이트
14. 부팅
✦ ROM에는 부트스트랩 로더(bootstrap
loader) 를 설치.
✦ 로더는 디스켓에서 맨 처음 128바이트를 수
행.
✦ 이 디스켓 섹터에는 나머지 CP/M을 로딩하
는 프로그램이 있음.
15. CP/M 메모리 배치 상태
✦ 기초 입출력 시스템(BIOS),
기본 디스크 운영 체제(BDOS),
콘솔 명령어 처리기(CCP)는 약
6KB 정도.
✦ 전체 64KB에서 임시 프로그램
영역(TPA)가 58KB 차지.
✦ 초기 TPA에는 어떤 프로그램도
로딩되어 있지 않음.
16. CCP, TPA
✦ 콘솔은 키보드와 화면을 통칭하는 말
✦ 프롬프트(prompt)
A>
✦ DIR, DIR *.TXT, ERA *.TXT, TYPE A.TXT
✦ 인식할 수 없는 명령어인 경우
저장된 다른 프로그램 이름이라 추정.
✦ 0100h TPA영역에 로딩, 수행함.
✦ ED, PIP 는 제공, 워드프로세서... 구입.
17. API
✦ 운영체제는 컴퓨터 하드웨어에 쉽게 접근할 수 있는
프로그램을 제공해줌.
✦ 이러한 접근 방법을 응용프로그램 인터페이스(API)
라고 함.
✦ MVI C, 16h
CALL 5 ; create empty file
✦ 메모리 0005h 번지에는 CP/M에 의해 설정된 JMP
명령어가 있어 BIOS 서브루틴으로 분기.
✦ API는 컴퓨터 하드웨어에 대한 장치 독립적 인터페
이스를 제공.
18. DOS
✦ 팀 패터슨이 만든 QDOS(Quick and Dirty
Operating System)을 마이크로소프트사가
라이선스 함
✦ 이후 IBM 이 MS-DOS 를 라이선스 함.
✦ MS는 FAT 방식 개발/도입.
✦ INT 21h 제공.
✦ MS-DOS 2.0 은 계층적 파일 시스템 제공.
19. UNIX
✦ 1970년대 초반 벨연구소의 켄 톰슨과 데니스
리치가 개발.
✦ 시분할(timesharing) 기법을 이용한
멀티 태스킹 운영체제.
✦ 가상 메모리(virtual memory) 기법.
✦ GNU, Linux
