'분류 전체보기' 카테고리의 글 목록 (760 Page)

'잡동사니'에 해당되는 글 13248건

2015.07.30 ubuntu 에서 AVR 컴파일하기
2015.07.30 라즈베리 파이 with yocto project 2
2015.07.30 precompiled header on GCC (라즈베리로 테스트) 2
2015.07.30 라즈베리 파이 B / composite & HDMI + 해상도
2015.07.29 USART UBRR error rate
2015.07.29 gcc에서 precompiled header 사용하기
2015.07.29 yocto project 구조
2015.07.29 HelpNDoc
2015.07.28 ARM926EJ / ARMv5TE
2015.07.28 ubuntu mate

키보드 DIY 자료 (0)	2015.09.23
avr-gcc -mmcu 관련 작동 내용 (0)	2015.08.02
USART UBRR error rate (0)	2015.07.29
avr-libc 8bit AVR C++ (0)	2015.07.28
avr twi / i2c 예제 및 풀업관련 (0)	2015.07.19

라즈베리 파이 with yocto project

yocto proejct - poky 다운로드

pi@raspberrypi ~/src $ git clone git://git.yoctoproject.org/poky yoctoProject

Cloning into 'yoctoProject'...

remote: Counting objects: 279679, done.

remote: Compressing objects: 100% (68614/68614), done.

Receiving objects: 100% (279679/279679), 112.68 MiB | 1.40 MiB/s, done.

Resolving deltas: 100% (205623/205623), done.

Checking out files: 100% (5101/5101), done.

meta-raspberrypi layer 다운로드

pi@raspberrypi ~/src $ cd yoctoProject/

pi@raspberrypi ~/src/yoctoProject $ git clone git://git.yoctoproject.org/meta-raspberrypi

Cloning into 'meta-raspberrypi'...

remote: Counting objects: 1924, done.

remote: Compressing objects: 100% (906/906), done.

remote: Total 1924 (delta 841), reused 1924 (delta 841)

Receiving objects: 100% (1924/1924), 351.58 KiB | 255 KiB/s, done.

Resolving deltas: 100% (841/841), done.

환경변수 및 라즈베리 파이 빌드할 경로 생성

pi@raspberrypi ~/src/yoctoProject $ source oe-init-build-env raspberryPiBuild/

You had no conf/local.conf file. This configuration file has therefore been

created for you with some default values. You may wish to edit it to use a

different MACHINE (target hardware) or enable parallel build options to take

advantage of multiple cores for example. See the file for more information as

common configuration options are commented.

You had no conf/bblayers.conf file. The configuration file has been created for

you with some default values. To add additional metadata layers into your

configuration please add entries to this file.

The Yocto Project has extensive documentation about OE including a reference

manual which can be found at:

http://yoctoproject.org/documentation

For more information about OpenEmbedded see their website:

http://www.openembedded.org/

### Shell environment set up for builds. ###

You can now run 'bitbake <target>'

Common targets are:

core-image-minimal

core-image-sato

meta-toolchain

adt-installer

meta-ide-support

You can also run generated qemu images with a command like 'runqemu qemux86'

라즈베리 파이 빌드를 위한 환경 설정 1

pi@raspberrypi ~/src/yoctoProject/raspberryPiBuild $ vim conf/local.conf

MACHINE ?= "raspberrypi"

라즈베리 파이 빌드를 위한 환경 설정 2

pi@raspberrypi ~/src/yoctoProject/raspberryPiBuild $ vim conf/bblayers.conf

# LAYER_CONF_VERSION is increased each time build/conf/bblayers.conf

# changes incompatibly

LCONF_VERSION = "6"

BBPATH = "${TOPDIR}"

BBFILES ?= ""

BBLAYERS ?= " \

/home/pi/src/yoctoProject/meta \

/home/pi/src/yoctoProject/meta-yocto \

/home/pi/src/yoctoProject/meta-yocto-bsp \

/home/pi/src/yoctoProject/meta-raspberrypi \

"

BBLAYERS_NON_REMOVABLE ?= " \

/home/pi/src/yoctoProject/meta \

/home/pi/src/yoctoProject/meta-yocto \

"

빌드를 위한 패키지 설치(라즈비안에서 한 120메가 다운로드 / 500메가 용량 필요)

pi@raspberrypi ~/src/yoctoProject/raspberryPiBuild $ sudo apt-get install sed wget cvs subversion git-core coreutils unzip texi2html texinfo libsdl1.2-dev docbook-utils gawk python-pysqlite2 diffstat help2man make gcc build-essential g++ desktop-file-utils chrpath libgl1-mesa-dev libglu1-mesa-dev mercurial autoconf automake groff libtool xterm

빌드 시작

pi@raspberrypi ~/src/yoctoProject/raspberryPiBuild $ bitbake core-sato-image

리부팅후 환경변수 재설정

pi@raspberrypi ~/src/yoctoProject $ source oe-init-build-env

끄응.. 왜 안되지? 라즈베리에서 라즈베리를 빌드하려고 해서 그런가? ㅋㅋㅋ

pi@raspberrypi ~/src/yoctoProject/raspberryPiBuild $ bitbake core-sato-image

WARNING: Host distribution "Raspbian-GNU-Linux-7" has not been validated with this version of the build system; you may possibly experience unexpected failures. It is recommended that you use a tested distribution.

ERROR: Unable to determine endianness for architecture 'armv6l' | ETA: --:--:--

ERROR: Please add your architecture to siteinfo.bbclass

ERROR: Failed to parse recipe: /home/pi/src/yoctoProject/meta/recipes-core/coreutils/coreutils_8.24.bb

Summary: There was 1 WARNING message shown.

Summary: There were 3 ERROR messages shown, returning a non-zero exit code.

---

pi@raspberrypi ~/src/yoctoProject $ ls -al

합계 92

drwxr-xr-x 12 pi pi 4096 7월 30 06:33 .

drwxr-xr-x 10 pi pi 4096 7월 30 06:29 ..

drwxr-xr-x 8 pi pi 4096 7월 30 06:33 .git

-rw-r--r-- 1 pi pi 346 7월 30 06:32 .gitignore

-rw-r--r-- 1 pi pi 66 7월 30 06:32 .templateconf

-rw-r--r-- 1 pi pi 515 7월 30 06:32 LICENSE

-rw-r--r-- 1 pi pi 2458 7월 30 06:32 README

-rw-r--r-- 1 pi pi 19318 7월 30 06:32 README.hardware

drwxr-xr-x 6 pi pi 4096 7월 30 06:32 bitbake

drwxr-xr-x 13 pi pi 4096 7월 30 06:32 documentation

drwxr-xr-x 21 pi pi 4096 7월 30 06:32 meta

drwxr-xr-x 13 pi pi 4096 7월 30 06:33 meta-raspberrypi

drwxr-xr-x 5 pi pi 4096 7월 30 06:32 meta-selftest

drwxr-xr-x 7 pi pi 4096 7월 30 06:32 meta-skeleton

drwxr-xr-x 5 pi pi 4096 7월 30 06:32 meta-yocto

drwxr-xr-x 8 pi pi 4096 7월 30 06:32 meta-yocto-bsp

-rwxr-xr-x 1 pi pi 2002 7월 30 06:32 oe-init-build-env

-rwxr-xr-x 1 pi pi 2432 7월 30 06:32 oe-init-build-env-memres

drwxr-xr-x 8 pi pi 4096 7월 30 06:32 scripts

pi@raspberrypi ~/src $ du -h yoctoProject/

178M yoctoProject/

[링크 : http://ric96.blogspot.in/2014/09/yocto-for-raspberry-pi-build-guide.html]

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라즈베리 파이 2 yocto 프로젝트? (0)	2015.06.08
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Posted by 구차니

precompiled header on GCC (라즈베리로 테스트)

-c -o gch를 통해서 gcc precompiled header를 생성이 가능하다.

물론 gch가 생성되면 원래 헤더파일이 사라져도 문제없이 컴파일 된다.

pi@raspberrypi ~/src/pch $ g++ -c stdafx.h -o stdafx.h.gch

pi@raspberrypi ~/src/pch $ ls -al

합계 4244

drwxr-xr-x 2 pi pi 4096 7월 30 00:58 .

drwxr-xr-x 9 pi pi 4096 7월 30 00:58 ..

-rw-r--r-- 1 pi pi 37 7월 30 00:58 1

-rw-r--r-- 1 pi pi 91 7월 30 00:58 a.cpp

-rw-r--r-- 1 pi pi 37 7월 30 00:58 stdafx.h

-rw-r--r-- 1 pi pi 4324036 7월 30 00:59 stdafx.h.gch

pi@raspberrypi ~/src/pch $ file stdafx.h.gch

stdafx.h.gch: GCC precompiled header (version 013) for C++

pi@raspberrypi ~/src/pch $ mv stdafx.h stdafx.h.bak

pi@raspberrypi ~/src/pch $ g++ a.cpp

확장자 gch로 확인하기 때문에 다른 확장자로 변경시 gch 헤더를 찾지 못한다.

pi@raspberrypi ~/src/pch $ mv stdafx.h.gch stdafx.h.gch.bak

pi@raspberrypi ~/src/pch $ ls -al

합계 4248

drwxr-xr-x 2 pi pi 4096 7월 30 01:01 .

drwxr-xr-x 9 pi pi 4096 7월 30 00:58 ..

-rw-r--r-- 1 pi pi 91 7월 30 00:58 a.cpp

-rwxr-xr-x 1 pi pi 6492 7월 30 01:00 a.out

-rw-r--r-- 1 pi pi 37 7월 30 00:58 stdafx.h.bak

-rw-r--r-- 1 pi pi 4324036 7월 30 00:59 stdafx.h.gch.bak

pi@raspberrypi ~/src/pch $ g++ a.cpp

a.cpp:1:20: fatal error: stdafx.h: 그런 파일이나 디렉터리가 없습니다

compilation terminated.

-c가 좀더 간편한듯.

-x c++-hedaer

-x c-header는 너무 길어 -_-

pi@raspberrypi ~/src/pch $ gcc -x c++-header stdafx.h -o stdafx.h.gch

pi@raspberrypi ~/src/pch $ ls -al

합계 4248

drwxr-xr-x 2 pi pi 4096 7월 30 01:01 .

drwxr-xr-x 9 pi pi 4096 7월 30 00:58 ..

-rw-r--r-- 1 pi pi 91 7월 30 00:58 a.cpp

-rwxr-xr-x 1 pi pi 6492 7월 30 01:00 a.out

-rw-r--r-- 1 pi pi 37 7월 30 00:58 stdafx.h

-rw-r--r-- 1 pi pi 4324036 7월 30 01:01 stdafx.h.gch

-c는 찾는거 포기 -_-

-x language

Specify explicitly the language for the following input files (rather than letting the compiler choose a default based on the file name suffix). This option applies to all following input files until the next -x option. Possible values for language are:

c c-header c-cpp-output

c++ c++-header c++-cpp-output

objective-c objective-c-header objective-c-cpp-output

objective-c++ objective-c++-header objective-c++-cpp-output

assembler assembler-with-cpp

ada

f77 f77-cpp-input f95 f95-cpp-input

java

-o file

Place output in file file. This applies regardless to whatever sort of output is being produced, whether it be an executable file, an object file, an assembler file or preprocessed C code.

If -o is not specified, the default is to put an executable file in a.out, the object file for source.suffix in source.o, its assembler file in source.s, a precompiled header file in source.suffix.gch, and all preprocessed C source on standard output.

[링크 : http://linux.die.net/man/1/gcc]

췟 이건 안되네 -_-

pi@raspberrypi ~/src/pch $ gcc stdafx.h -o stdafx.h.gch

stdafx.h:1:18: fatal error: string: 그런 파일이나 디렉터리가 없습니다

compilation terminated.

결론 -c -o .gch로 하자

2015/07/29 - [프로그램 사용/gcc] - gcc에서 precompiled header 사용하기

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gcc 32bit/ 64bit 컴파일하기 (0)	2015.07.14

Posted by 구차니

라즈베리 파이 B / composite & HDMI + 해상도

composite 해상도 관련

ssh로 하니 안되서 마우스 + 키보드 연결하고 파일로 저장해서 읽어옴 -_-

$ xdpyinfo

$ cat xdpy.txt

name of display: :0.0

version number: 11.0

vendor string: The X.Org Foundation

vendor release number: 11204000

X.Org version: 1.12.4

maximum request size: 16777212 bytes

motion buffer size: 256

bitmap unit, bit order, padding: 32, LSBFirst, 32

image byte order: LSBFirst

number of supported pixmap formats: 7

supported pixmap formats:

depth 1, bits_per_pixel 1, scanline_pad 32

depth 4, bits_per_pixel 8, scanline_pad 32

depth 8, bits_per_pixel 8, scanline_pad 32

depth 15, bits_per_pixel 16, scanline_pad 32

depth 16, bits_per_pixel 16, scanline_pad 32

depth 24, bits_per_pixel 32, scanline_pad 32

depth 32, bits_per_pixel 32, scanline_pad 32

keycode range: minimum 8, maximum 255

focus: window 0x1200005, revert to Parent

number of extensions: 27

BIG-REQUESTS

Composite

DAMAGE

DOUBLE-BUFFER

DPMS

DRI2

GLX

Generic Event Extension

MIT-SCREEN-SAVER

MIT-SHM

RANDR

RECORD

RENDER

SECURITY

SGI-GLX

SHAPE

SYNC

X-Resource

XC-MISC

XFIXES

XFree86-DGA

XFree86-VidModeExtension

XINERAMA

XInputExtension

XKEYBOARD

XTEST

XVideo

default screen number: 0

number of screens: 1

screen #0:

dimensions: 656x416 pixels (174x110 millimeters)

resolution: 96x96 dots per inch

depths (7): 16, 1, 4, 8, 15, 24, 32

root window id: 0xe2

depth of root window: 16 planes

number of colormaps: minimum 1, maximum 1

default colormap: 0x20

default number of colormap cells: 64

preallocated pixels: black 0, white 65535

options: backing-store NO, save-unders NO

largest cursor: 656x416

current input event mask: 0x7a003c

ButtonPressMask ButtonReleaseMask EnterWindowMask

LeaveWindowMask StructureNotifyMask SubstructureNotifyMask

SubstructureRedirectMask FocusChangeMask PropertyChangeMask

number of visuals: 33

default visual id: 0x21

visual:

visual id: 0x21

depth: 16 planes