build_rpi_lib.sh를 통해 빌드 하려는데 에러 뿜뿜 -_-
그래서 makefile을 고쳐야 하나 멘붕이 와서 다시 찾아 보는데
| /bin/bash: arm-linux-gnueabihf-g++: command not found |
| ./tensorflow/lite/tools/make/build_aarch64_lib.sh |
[링크 : https://www.tensorflow.org/lite/guide/build_arm64?hl=ko]
| tf lite cmake (0) | 2021.08.27 |
|---|---|
| tensorflow cross compile (0) | 2021.07.01 |
| tensorflow delegate (0) | 2021.06.30 |
| tflite typed_tensor(), tensor() (0) | 2021.06.25 |
| tflite yolov4 (0) | 2021.06.14 |
전에 찾아볼때 대리자 이런게 있길래 그냥 넘겼는데
그래프 실행의 "일부" 또는 "전체"를 다른 실행자에게 넘기는 방법
오.. 그러면 전체 연산중에 일부만을 넘길수 있다면.. delegate를 이용해 분산 처리도 가능할지도?
| TensorFlow Lite 대리자는 그래프 실행의 일부 또는 전체를 다른 executor에 위임하는 방법입니다. |
NPU도 지원이 가능하다는데
|
[링크 : https://www.tensorflow.org/lite/performance/delegates?hl=ko]
cpp 로는 안되나.. android 8.1 이상 기기에서 쓸 수 있다고만 나오네
Android Neural Networks API(NNAPI)는 Android 8.1(API 레벨 27) 이상을 실행하는 모든 Android 기기에서 사용할 수 있습니다. 다음과 같은 하드웨어 가속기를 지원하는 Android 기기의 TensorFlow Lite 모델을 속도를 향상합니다.
|
[링크 : https://www.tensorflow.org/lite/performance/nnapi?hl=ko]
| tensorflow cross compile (0) | 2021.07.01 |
|---|---|
| tensorflow lite on rpi4 64bit (0) | 2021.06.30 |
| tflite typed_tensor(), tensor() (0) | 2021.06.25 |
| tflite yolov4 (0) | 2021.06.14 |
| tensorflow lite yolov4 (0) | 2021.06.10 |
32bit kernel info
| $ cat /proc/cpuinfo processor : 3 model name : ARMv7 Processor rev 3 (v7l) BogoMIPS : 108.00 Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32 CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3 Hardware : BCM2711 Revision : c03112 Serial : 100000003e728750 Model : Raspberry Pi 4 Model B Rev 1.2 $ uname -a Linux raspberrypi 5.10.17-v7l+ #1403 SMP Mon Feb 22 11:33:35 GMT 2021 armv7l GNU/Linux |
64bit kernel info
| $ cat /proc/cpuinfo processor : 3 BogoMIPS : 108.00 Features : fp asimd evtstrm crc32 cpuid CPU implementer : 0x41 CPU architecture: 8 CPU variant : 0x0 CPU part : 0xd08 CPU revision : 3 Hardware : BCM2835 Revision : c03112 Serial : 100000003e728750 Model : Raspberry Pi 4 Model B Rev 1.2 $ uname -a Linux raspberrypi 5.10.17-v8+ #1403 SMP PREEMPT Mon Feb 22 11:37:54 GMT 2021 aarch64 GNU/Linux |
| aarch, armv8 asimd build (neon) (0) | 2021.06.30 |
|---|---|
| rpi 4b 32bit vs 64bit? (0) | 2021.06.30 |
| AArch64 linux cpu features (0) | 2021.06.30 |
| citcuitpyrhon joystick (0) | 2021.06.28 |
| rpi pico, circuitpython, USB HID (0) | 2021.06.28 |
cpuinfo 플래그가 희한하게 떠서 찾아보니 aarch64 에서는 명칭들이 죄다 바뀐 듯
asimd는 Advanced SIMD 줄여서 표현한건데 기존의 neon을 대체하고
fp는 vfp이런걸 전부 다 대체하는건가?
| Features : fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid |
[링크 : https://unix.stackexchange.com/questions/43539/what-do-the-flags-in-proc-cpuinfo-mean]
[링크 : https://stackoverflow.com/questions/59379848/]
[링크 : http://javathunderx.blogspot.com/2018/11/cheat-sheet-for-cpuinfo-features-on.html]
| rpi 4b 32bit vs 64bit? (0) | 2021.06.30 |
|---|---|
| rpi 4 32bit / 64bit cpuinfo (0) | 2021.06.30 |
| citcuitpyrhon joystick (0) | 2021.06.28 |
| rpi pico, circuitpython, USB HID (0) | 2021.06.28 |
| rpi pico pinout (0) | 2021.06.28 |
-O3 하면 자동으로 -ftree-vectorize가 추가되었다고.
아무튼 연산만 하고 출력을 안하니 사용하지 않는 코드로 해서 vadd가 안나와서 한참을 헤맸네..
| $ g++ -O3 -mavx autovector.cpp -fopt-info-vec-all autovector.cpp:22:22: missed: couldn't vectorize loop autovector.cpp:25:19: missed: not vectorized: complicated access pattern. autovector.cpp:23:21: missed: couldn't vectorize loop autovector.cpp:25:14: missed: not vectorized: complicated access pattern. autovector.cpp:16:23: optimized: loop vectorized using 32 byte vectors autovector.cpp:10:5: note: vectorized 1 loops in function. autovector.cpp:15:43: missed: statement clobbers memory: now = std::chrono::_V2::system_clock::now (); autovector.cpp:27:77: missed: statement clobbers memory: D.189348 = std::chrono::_V2::system_clock::now (); autovector.cpp:28:2: missed: statement clobbers memory: __assert_fail ("result[2] == ( 2.0f + 0.1335f)+( 1.50f*2.0f + 0.9383f)-(0.33f*2.0f+0.1172f)+3*(float)(noTests-1)", "autovector.cpp", 28, "int main()"); /usr/include/c++/9/ostream:570:18: missed: statement clobbers memory: std::__ostream_insert<char, std::char_traits<char> > (&cout, "CG> message -channel \"exercise results\" Time used: ", 51); /usr/include/c++/9/ostream:221:29: missed: statement clobbers memory: _46 = std::basic_ostream<char>::_M_insert<double> (&cout, _42); /usr/include/c++/9/ostream:570:18: missed: statement clobbers memory: std::__ostream_insert<char, std::char_traits<char> > (_46, "s, N * noTests=", 15); autovector.cpp:29:112: missed: statement clobbers memory: _35 = std::basic_ostream<char>::operator<< (_46, 2000000000); /usr/include/c++/9/ostream:113:13: missed: statement clobbers memory: std::endl<char, std::char_traits<char> > (_35); /usr/include/c++/9/iostream:74:25: missed: statement clobbers memory: std::ios_base::Init::Init (&__ioinit); /usr/include/c++/9/iostream:74:25: missed: statement clobbers memory: __cxa_atexit (__dt_comp , &__ioinit, &__dso_handle); |
| $ gcc -mcpu=native -march=native -Q --help=target The following options are target specific: -mabi= aapcs-linux -mabort-on-noreturn [disabled] -mandroid [disabled] -mapcs [disabled] -mapcs-frame [disabled] -mapcs-reentrant [disabled] -mapcs-stack-check [disabled] -march= armv7ve+vfpv3-d16 -marm [enabled] -masm-syntax-unified [disabled] -mbe32 [enabled] -mbe8 [disabled] -mbig-endian [disabled] -mbionic [disabled] -mbranch-cost= -1 -mcallee-super-interworking [disabled] -mcaller-super-interworking [disabled] -mcmse [disabled] -mcpu= cortex-a7 -mfix-cortex-m3-ldrd [disabled] -mflip-thumb [disabled] -mfloat-abi= hard -mfp16-format= none -mfpu= vfp -mglibc [enabled] -mhard-float -mlittle-endian [enabled] -mlong-calls [disabled] -mmusl [disabled] -mneon-for-64bits [disabled] -mpic-data-is-text-relative [enabled] -mpic-register= -mpoke-function-name [disabled] -mprint-tune-info [disabled] -mpure-code [disabled] -mrestrict-it [disabled] -msched-prolog [enabled] -msingle-pic-base [disabled] -mslow-flash-data [disabled] -msoft-float -mstructure-size-boundary= 8 -mthumb [disabled] -mthumb-interwork [disabled] -mtls-dialect= gnu -mtp= cp15 -mtpcs-frame [disabled] -mtpcs-leaf-frame [disabled] -mtune= -muclibc [disabled] -munaligned-access [enabled] -mvectorize-with-neon-double [disabled] -mvectorize-with-neon-quad [enabled] -mword-relocations [disabled] Known ARM ABIs (for use with the -mabi= option): aapcs aapcs-linux apcs-gnu atpcs iwmmxt Known __fp16 formats (for use with the -mfp16-format= option): alternative ieee none Known ARM FPUs (for use with the -mfpu= option): auto crypto-neon-fp-armv8 fp-armv8 fpv4-sp-d16 fpv5-d16 fpv5-sp-d16 neon neon-fp-armv8 neon-fp16 neon-vfpv3 neon-vfpv4 vfp vfp3 vfpv2 vfpv3 vfpv3-d16 vfpv3-d16-fp16 vfpv3-fp16 vfpv3xd vfpv3xd-fp16 vfpv4 vfpv4-d16 Valid arguments to -mtp=: auto cp15 soft Known floating-point ABIs (for use with the -mfloat-abi= option): hard soft softfp TLS dialect to use: gnu gnu2 |
[링크 : https://www.raspberrypi.org/forums/viewtopic.php?t=155461]
[링크 : https://www.codingame.com/playgrounds/283/sse-avx-vectorization/autovectorization]
+
| $ cat neon.c #include <stdio.h> void main() { int a[256]; int b[256]; int c[256]; int i; for(i = 0; i < 256; i++) { a[i] = b[i] + c[i]; } printf("%d %d %d\n", a[0], b[0], c[0]); } |
| $ gcc -O3 neon.c -mfpu=neon $ objdump -d a.out | grep v 10320: e1a01000 mov r1, r0 10328: e1a0300d mov r3, sp 1032c: f4610add vld1.64 {d16-d17}, [r1 :64]! 10330: f4622add vld1.64 {d18-d19}, [r2 :64]! 10334: f26008e2 vadd.i32 q8, q8, q9 10338: f4430add vst1.64 {d16-d17}, [r3 :64]! 10360: e3a0b000 mov fp, #0 10364: e3a0e000 mov lr, #0 1036c: e1a0200d mov r2, sp 1043c: e3a03001 mov r3, #1 10454: e1a07000 mov r7, r0 1046c: e1a08001 mov r8, r1 10470: e1a09002 mov r9, r2 10480: e3a04000 mov r4, #0 1048c: e1a02009 mov r2, r9 10490: e1a01008 mov r1, r8 10494: e1a00007 mov r0, r7 |
| $ gcc neon.c -mfpu=neon $ objdump -d a.out | grep v 10318: e3a0b000 mov fp, #0 1031c: e3a0e000 mov lr, #0 10324: e1a0200d mov r2, sp 103f4: e3a03001 mov r3, #1 10418: e3a03000 mov r3, #0 10490: e1a00000 nop ; (mov r0, r0) 104a4: e1a07000 mov r7, r0 104bc: e1a08001 mov r8, r1 104c0: e1a09002 mov r9, r2 104d0: e3a04000 mov r4, #0 104dc: e1a02009 mov r2, r9 104e0: e1a01008 mov r1, r8 104e4: e1a00007 mov r0, r7 |
-fopt-info-vec-all 추가. -all 때문인지 어마어마하게 나오네
-fopt-info-vec 으로만 하니 깔끔하게 vectorized 라고 뜬다.
| $ gcc neon.c -mfpu=neon -fopt-info-vec -O3 neon.c:10:2: note: loop vectorized |
| 구조체 타입과 변수명은 구분된다? (0) | 2021.11.18 |
|---|---|
| gcc unsigned to signed upcast 테스트 (0) | 2021.07.08 |
| gcc unsigned to signed cast (0) | 2021.06.22 |
| gcc %p (nil) (0) | 2021.05.07 |
| gcc -D 옵션 인자를 printf로 출력하기 (0) | 2021.04.08 |
USB 조이스틱 중 포스피드백 되는 장치를 만들어주는 코드
[링크 : https://github.com/tloimu/adapt-ffb-joy/wiki]
+
2024.10.07
[링크 : https://github.com/YukMingLaw/ArduinoJoystickWithFFBLibrary]
| new-lg4ff 와 oversteer 설치 시도 (0) | 2024.10.12 |
|---|---|
| 플심용 자작 시뮬레이터 (2) | 2024.10.11 |
| ffb (force feedback) linux driver (0) | 2024.10.07 |
| ffb - force feedback (0) | 2023.08.25 |
| usb joystick DIY / Force Feedback (2) | 2018.03.04 |
| 늬우스 (0) | 2021.07.11 |
|---|---|
| 교사에 의한 세뇌 페미 (0) | 2021.05.06 |
| 여자 징병 vs 소년병, 관음충 논문 반박? (0) | 2021.04.24 |
| 여자도 군대가라 season 2? (0) | 2021.04.20 |
| 여자도 군대가라? (0) | 2021.04.19 |
예제대로 넣으니까 먼가 뜨긴 한데
장치 관리자에서는 이정도 밖에 발견하지 못했고
시작에서 컨트롤러 쳐서 조이스틱 상태를 보니
오..?! CircuitPython HID 라는게 뜬다.
장치관리자에는 안보이던데 어딨냐 너 -_-
아무튼 이정도면 dog 훌륭아닌가?!
내 joytron 보다 더 많은 단추를 제공하는 느낌인데...
조금 아쉬운건 x/y/z 축은 있지만 시야는 없다는 정도?
[링크 : https://circuitpython.readthedocs.io/en/2.x/shared-bindings/gamepad/GamePad.html]
+
심심해서 usb_hid 와 gamepad 둘다 로드하니 순서와는 상관없이 gamepad만 뜬다.
조이스틱과 키보드 마우스 동시에 쓸 순 없나?
| rpi 4 32bit / 64bit cpuinfo (0) | 2021.06.30 |
|---|---|
| AArch64 linux cpu features (0) | 2021.06.30 |
| rpi pico, circuitpython, USB HID (0) | 2021.06.28 |
| rpi pico pinout (0) | 2021.06.28 |
| rpi 3b+ with bt / uart (0) | 2021.06.28 |
attiny2313에 엣지 트리거 핀 하나 이용해서 USB 1.1 구현을 한 듯.
음.. atmega128 등에서는 못쓰는건가?
| No UART, timer, input capture unit or other special hardware is required (except one edge triggered interrupt). |
[링크 : https://www.obdev.at/products/vusb/index.html]
| Previous versions have been tested with IAR 4.10B/W32 and |
[링크 : https://github.com/obdev/v-usb/blob/master/Readme.txt]
[링크 : https://github.com/obdev/v-usb]
다운로드 해서 보니 ATtny45 ATmega8에 대한 언급은 있는데
압축 파일 자체가 2012 인걸 봐서는.. 오랫동안 유지보수 안된 것 같긴하다..
| ATMEL AT32UC3A 시리즈 (0) | 2023.07.04 |
|---|---|
| avrisp mk2 / avrisp mk2 clone / stk500 clone (0) | 2017.11.21 |
| avr unlock 관련 (0) | 2017.11.21 |
| avrdude + usbasp 테스트 (0) | 2017.11.21 |
| avrdude 실행 안됨 (0) | 2017.11.18 |
usb hid 라이브러리
[링크 : https://circuitpython.org/libraries]
circuit python uf2 다운로드
[링크 : https://circuitpython.org/board/raspberry_pi_pico/]
step 1. circuit python uf2 파일 쓰기
BOOTSEL 누르고 부팅해서 adafruit-circuitpython-raspberry_pi_pico-en_US-6.3.0.uf2 파일을 드라이브에 던진다.
step 2. lib 복사
circuitpython이 설치되면 리부팅 되고 아래와 같은 구조의 디렉토리가 보이게 된다.
adafruit-circuitpython-bundle-6.x-mpy-20210625.zip 를 받아 zip 파일내의
adafruit_hid 디렉토리를 lib/adafruit_hid 에 복사한다.
[링크 : https://learn.adafruit.com/welcome-to-circuitpython/circuitpython-libraries]
step 3. code.py 작성
아래는 꽂으면 A만 미친듯이 눌러대는 녀석이다. (그러니 현재는 테러용 USB ㅋㅋ)
마치 shift가 눌린 것 처럼 작동하는데 코드는 좀 더 분석이 필요하다.
| Import time import board import digitalio import usb_hid from adafruit_hid.keyboard import Keyboard from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS from adafruit_hid.keycode import Keycode # The Keycode sent for each button, will be paired with a control key keys_pressed = [Keycode.A, "Hello World!\n"] control_key = Keycode.SHIFT # The keyboard object! time.sleep(1) # Sleep for a bit to avoid a race condition on some systems keyboard = Keyboard(usb_hid.devices) keyboard_layout = KeyboardLayoutUS(keyboard) # We're in the US :) while True: keyboard_layout.write('A') time.sleep(0.01) |
Hello world 출력하는 키보드(!) 예제 ㅋㅋ
| import time import board import digitalio import usb_hid from adafruit_hid.keyboard import Keyboard from adafruit_hid.keyboard_layout_us import KeyboardLayoutUS from adafruit_hid.keycode import Keycode # The keyboard object! time.sleep(1) # Sleep for a bit to avoid a race condition on some systems keyboard = Keyboard(usb_hid.devices) keyboard_layout = KeyboardLayoutUS(keyboard) # We're in the US :) while True: keyboard_layout.write('H') keyboard_layout.write('e') keyboard_layout.write('l') keyboard_layout.write('l') keyboard_layout.write('o') keyboard_layout.write(' ') keyboard_layout.write('w') keyboard_layout.write('o') keyboard_layout.write('r') keyboard_layout.write('l') keyboard_layout.write('d') time.sleep(1) |
[링크 : https://learn.adafruit.com/getting-started-with-raspberry-pi-pico-circuitpython]
[링크 : https://learn.adafruit.com/circuitpython-essentials/circuitpython-hid-keyboard-and-mouse]
| AArch64 linux cpu features (0) | 2021.06.30 |
|---|---|
| citcuitpyrhon joystick (0) | 2021.06.28 |
| rpi pico pinout (0) | 2021.06.28 |
| rpi 3b+ with bt / uart (0) | 2021.06.28 |
| rpi pico USB OTG를 이용한 오실로스코프 (0) | 2021.06.27 |
|
