윈도우에서 가로(대칭 이동)으로 해서 헷갈렸던 듯.
"가로" 로 설정하면
왼쪽눈은 화면의 왼쪽 절반, 오른쪽눈은 화면의 오른쪽 절반이 보인다. (윈도우 <-, -> 로 하면 딱딱 한쪽만 보임)
| rpi pico sdk (0) | 2025.03.23 |
|---|---|
| rpi pico usb joystick (0) | 2024.10.07 |
| pico real plus for U+ 구매 (0) | 2024.07.28 |
| rpi pico ADC 범위 (0) | 2024.07.16 |
| rpi pico / micropython (0) | 2024.07.15 |
검색을 해보니 대부분 python을 통해서 설치하는걸로 나온다.
아래는 설치 + 실행, 빨간건 재기동 이후 실행시 입력할 내용이다.
| $ python3 -m venv pgadmin4 $ cd ~/pgadmin4 $ mkdir var $ mkdir var/storage $ mkdir var/sessions $ source bin/activate $ pip install pgadmin4 $ pip uninstall pyopenssl $ pip uninstall cryptography $ pip install pyopenssl $ pip install cryptography $ vi ~/pgadmin4/lib/python3.11/site-packages/config_local.py import os PGADMIN_DEFAULT_EMAIL = '<YOUR_EMAIL>' PGADMIN_DEFAULT_PASSWORD = '<YOUR_PASSWORD>' LOG_FILE = '/home/pi/pgadmin4/var/log' SQLITE_PATH = '/home/pi/pgadmin4/var/pgadmin4.db' SESSION_DB_PATH = '/home/pi/pgadmin4/var/sessions' STORAGE_DIR = '/home/pi/pgadmin4/var/storage' DATA_DIR = os.path.realpath(os.path.expanduser(u'~/.pgadmin/')) AZURE_CREDENTIAL_CACHE_DIR = os.path.join(DATA_DIR, 'azurecredentialcache') DEFAULT_SERVER = '0.0.0.0' $ mkdir ~/.pgadmin $ mkdir ~/.pgadmin/azurecredentialcache $ pgadmin4 |
~/pgadmin4/lib/python3.11/site-packages/config_local.py 파일이 없으면 생기는 에러
| $ pgadmin4 ERROR : Failed to create the directory /var/lib/pgadmin: [Errno 13] Permission denied: '/var/lib/pgadmin' HINT : Create the directory /var/lib/pgadmin, ensure it is writeable by 'pi', and try again, or, create a config_local.py file and override the SQLITE_PATH setting per https://www.pgadmin.org/docs/pgadmin4/6.21/config_py.html |
AZURE_CREDENTIAL_CACHE_DIR 이 없을 경우 발생(혹은 디렉토리가 없을 경우)
| $ pgadmin4 Traceback (most recent call last): File "/home/pi/pgadmin4/bin/pgadmin4", line 5, in <module> from pgadmin4.pgAdmin4 import main File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgAdmin4.py", line 93, in <module> app = create_app() ^^^^^^^^^^^^ File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/__init__.py", line 267, in create_app create_app_data_directory(config) File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/setup/data_directory.py", line 118, in create_app_data_directory _create_directory_if_not_exists(config.AZURE_CREDENTIAL_CACHE_DIR) File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/setup/data_directory.py", line 21, in _create_directory_if_not_exists os.mkdir(_path) FileNotFoundError: [Errno 2] No such file or directory: '/home/pi/.pgadmin/azurecredentialcache' |
python openssl 모듈 버전 문제일 경우 발생
| $ pgadmin4 NOTE: Configuring authentication for SERVER mode. Enter the email address and password to use for the initial pgAdmin user account: Email address: "환경파일에 기재된 이메일" Password: "환경파일에 기재된 암호" Retype password: "환경파일에 기재된 암호" Traceback (most recent call last): File "/home/pi/pgadmin4/bin/pgadmin4", line 5, in <module> from pgadmin4.pgAdmin4 import main File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgAdmin4.py", line 93, in <module> app = create_app() ^^^^^^^^^^^^ File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/__init__.py", line 553, in create_app driver.init_app(app) File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/utils/driver/__init__.py", line 27, in init_app DriverRegistry.load_modules(app) File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/utils/driver/registry.py", line 18, in load_modules from . import psycopg2 as module File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/utils/driver/psycopg2/__init__.py", line 30, in <module> from .server_manager import ServerManager File "/home/pi/pgadmin4/lib/python3.11/site-packages/pgadmin4/pgadmin/utils/driver/psycopg2/server_manager.py", line 35, in <module> from sshtunnel import SSHTunnelForwarder, BaseSSHTunnelForwarderError File "/home/pi/pgadmin4/lib/python3.11/site-packages/sshtunnel.py", line 25, in <module> import paramiko File "/home/pi/pgadmin4/lib/python3.11/site-packages/paramiko/__init__.py", line 22, in <module> from paramiko.transport import ( File "/home/pi/pgadmin4/lib/python3.11/site-packages/paramiko/transport.py", line 138, in <module> class Transport(threading.Thread, ClosingContextManager): File "/home/pi/pgadmin4/lib/python3.11/site-packages/paramiko/transport.py", line 212, in Transport if KexCurve25519.is_available(): ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/pi/pgadmin4/lib/python3.11/site-packages/paramiko/kex_curve25519.py", line 30, in is_available X25519PrivateKey.generate() File "/home/pi/pgadmin4/lib/python3.11/site-packages/cryptography/hazmat/primitives/asymmetric/x25519.py", line 39, in generate from cryptography.hazmat.backends.openssl.backend import backend File "/home/pi/pgadmin4/lib/python3.11/site-packages/cryptography/hazmat/backends/openssl/__init__.py", line 6, in <module> from cryptography.hazmat.backends.openssl.backend import backend File "/home/pi/pgadmin4/lib/python3.11/site-packages/cryptography/hazmat/backends/openssl/backend.py", line 113, in <module> from cryptography.hazmat.bindings.openssl import binding File "/home/pi/pgadmin4/lib/python3.11/site-packages/cryptography/hazmat/bindings/openssl/binding.py", line 14, in <module> from cryptography.hazmat.bindings._openssl import ffi, lib ImportError: /home/pi/pgadmin4/lib/python3.11/site-packages/cryptography/hazmat/bindings/_openssl.abi3.so: undefined symbol: FIPS_mode |
openssl 패키지 갈아봤자 의미없고, pip를 통해서 업데이트 해주어야 한다.
| pip uninstall pyopenssl pip uninstall cryptography pip install pyopenssl pip install cryptography |
원격으로 해서 포트 돌리고
| $ ssh pi@my.domain.try -p 22 -X -C -L 5050:localhost:5050 |
로컬에서 접속하니 로그인은 떴다!!
엄청 오랫만에 보는 느낌이네..
그나저나 이거 다시 켜려면 venv 해서 또 해야하려나?
[링크 : https://medium.com/@jaimemartinagui/pgadmin-on-raspberry-pi-857872e6f3b2] << 요거 주로 참고
[링크 : https://www.alcher.me/databases-ru-en/postgresql/install-pgadmin-4-on-debian-buster/]
[링크 : https://forums.raspberrypi.com/viewtopic.php?t=337180]
| 라즈베리 파이 gui 자동실행 (0) | 2024.09.19 |
|---|---|
| 라즈베리 파이에 파이썬 스크립트를 서비스로 등록하기 (0) | 2024.08.27 |
| pgadmin3 안되잖아?! (0) | 2024.07.26 |
| rpi 콘솔 옮기기 (0) | 2024.02.26 |
| rpi libcamera? (0) | 2024.02.26 |
중고로 만원에 업어옴
케이스는 쌈박한데.. 문제는 메뉴얼이 없다는 것.
컨트롤러도 있는데 건전지 2개 들어간다.
LG U+ 똭!
USB C로 되어있어서 일반적인 데스크탑에서는 쓰기힘들 듯?
두께를 얇게 하기 위해 일반 렌즈가 아니라 프레넬 렌즈를 쓴 듯
v50s 연결하고 카메라 앱 실행해서 보니 생각외로 산뜻하게 보이는데, 펜타일이 아니라 RGB인가?
4k 5.5인치에 RGB가 가능한가?
노트9에 연결하니 반응이 없어서 고장난 줄 알았는데
v50s나 7세대 노트북에는 잘되는걸 보면
usb-c alt mode (dp)가 4k로 작동해야만 켜지는 것 같다.
윈도우에서는 아래와 같이, 펜 / 오디오 / av adapter로 인식되고 자동 설치 된다.
근데.. 왜 세로지?
[링크 : https://m.blog.naver.com/ktd101/222134083802]
[링크 : https://minimax95.tistory.com/entry/Pico-real-plus-VR-사용-후기업데이트-필수]
KT 버전 v50s 라 그런가.. "U+VR커넥트"로 검색해도 플레이스토어에 안나온다?
[링크 : https://m.blog.naver.com/821lsy/221824121001]
[링크 : https://item.gmarket.co.kr/Item?goodscode=3149275061]
sunix upd2018-B 라는 보드가 있는데, DP를 꽂으면 usb-c로 출력해주는 녀석이다.
일단은 난 이걸 쓰지 않으니 상관은 없을 듯.
[링크 : https://prod.danawa.com/info/?pcode=5343557]
[링크 : https://blog.naver.com/tomynymph/222182380482]
+ 2024.08.07
dp to usb c
[링크 : https://coolenjoy.net/bbs/31/1016528]
[링크 : https://m.danawa.com/product/product.html?code=10634508&cateCode=1131812]
+ end
HLSL 쉐이더 + MPC BE 혹은 팟플레이어
[링크 : https://www.clien.net/service/board/lecture/15465628]
DesktopSBS 라는 프로그램을 쓰라고
[링크 : https://github.com/PaysPlat/DesktopSbS]
[링크 : https://www.clien.net/service/board/lecture/15472017]
분해
[링크 : https://m.blog.naver.com/0106sang/222505160983]
pico G2 4K(한쪽 눈 기준 1920x2160(3840x2160)
[링크 : https://www.picoxr.com/kr/products/g2-4k]
[링크 : https://prod.danawa.com/info/?pcode=12055721#bookmark_product_information]
| rpi pico usb joystick (0) | 2024.10.07 |
|---|---|
| pico real plus 윈도우에 연결하기 (0) | 2024.07.31 |
| rpi pico ADC 범위 (0) | 2024.07.16 |
| rpi pico / micropython (0) | 2024.07.15 |
| rpi pico usb sound (0) | 2021.11.08 |
postgresql 15.x 를 써서 그런가 안된다
pgadmin3가 아니라 pgadmin4를 써야 할 것 같은데
[링크 : https://dba.stackexchange.com/questions/251031/what-is-the-last-version-of-postgres-with-pgadmin-3]
라즈베리 파이에는 도대체 버전이 어떻게 관리 되길래 이런 대참사가 벌어지고 있는거냐..
| $ apt-cache search pgadmin pgadmin3 - graphical administration tool for PostgreSQL pgadmin3-data - graphical administration tool for PostgreSQL - documentation phppgadmin - web-based administration tool for PostgreSQL postgresql-15-pldebugger - PostgreSQL pl/pgsql Debugger API |
| 라즈베리 파이에 파이썬 스크립트를 서비스로 등록하기 (0) | 2024.08.27 |
|---|---|
| pgadmin4 를 rpi에 설치하기 성공 (0) | 2024.07.29 |
| rpi 콘솔 옮기기 (0) | 2024.02.26 |
| rpi libcamera? (0) | 2024.02.26 |
| 3d 프린트 한 라즈베리 케이스 (0) | 2024.02.21 |
자동 재시작이 안되서 이상하다 싶어 보는데
Reset behavior에 "Connect under reset"이 되어있으면 펌웨어 업데이트 이후 리셋을 눌러줘야 재기동하고
"Software system reset"을 하면 펌웨어 업데이트 이후 자동으로 재시작 된다.
Halt all cores가 체크 가능한건 두 개 뿐이네..
| stm32cubeide 빌드할 소스 추가하기 (0) | 2024.08.01 |
|---|---|
| STM32H75I-EVAL (0) | 2024.08.01 |
| stm32cubeide(eclipse) project clean시 빌드 하지 않기 (0) | 2024.07.24 |
| 우분투에서 stm32cubeide 삭제 (0) | 2024.07.24 |
| STM32H7 디버깅 설정(cubeIDE) (0) | 2024.07.22 |
가변저항이라는데, potentiometer 와의 차이를 모르겠다.
[링크 : https://www.analog.com/en/products/ad5272.html]
[링크 : https://blog.naver.com/roboholic84/220326171298]
포텐쇼미터는 전위차계로 번역을 하고, 레오스텟은 가변저항으로 번역을 하나?
[링크 : https://ko.efinetech.net/info/variable-load-resistor-84625884.html]
| What is Rheostat? The rheostat is composed of a resistive material that is used to control the voltage to the load. The setting of the rheostat can be adjusted by rotating a handle. This device is used to control current flow through a circuit Difference between Potentiometer and Rheostats: 1) Potentiometer has two fixed resistors and a variable resistor, whereas Rheostat has only one variable resistor. 2) Potentiometer is mainly used for mechanical applications, whereas rheostats are primarily used for electrical applications. 3) The potentiometer is available with dials that help to read its setting value from outside of the circuit board, etc. 4) Potentiometers are available with a linear output, whereas Rheostats are available in logarithmic output. 5) Potentiometers are cheaper than Rheostats. 6) Both potentiometer and rheostat are used to control voltage. |
[링크 : https://unacademy.com/content/neet-ug/study-material/physics/potentiometer-and-rheostats/]
[링크 : https://eepower.com/resistor-guide/resistor-types/rheostat/#]
포텐쇼미터는 단자가 3개라서, 중앙의 것과 양 끝단의 하나를 사용하면 가변저항 처럼 사용은 가능하지만
본 목적은 전압의 분배라는 새로운 사실을 알게 됨(!)
A potentiometer is basically a variable voltage divider; as the knob on the device is turned, a sliding contact creates a voltage divider between the input and the two outputs. In other words, a potentiometer is simply meant for voltage division. With a rheostat simply being a potentiometer with infinite resistance at the second output, it modulates total power received by the load connected to the output. If the rheostat and load resistance are equal, then maximum power is transferred to the load component. |
[링크 : https://octopart.com/pulse/p/potentiometer-vs-rheostat-which-should-you-use]
| 열전대 써모커플러 (0) | 2025.07.17 |
|---|---|
| buzzer - 액티브 패시브 (0) | 2025.07.15 |
| notch filter (0) | 2024.05.21 |
| 멀티미터 TR 테스트 (0) | 2023.11.02 |
| 지름도착 - usb 인두기 (0) | 2023.10.27 |
아무생각없이 무지성으로 clean 하면 매번 빌드되서 짜증났는데
proejct 쪽 메뉴에서 preference 봐도 없길래
clean 메뉴를 다시 보니 가장 아래에
"Start a build immediately"에 체크가 되어있다.
아니.. clean 한다고 왜 빌드 바로 하라는 옵션이 있냐구요.. -_-
| STM32H75I-EVAL (0) | 2024.08.01 |
|---|---|
| stm32cubeide 펌웨어 업데이트 이후 자동 재시작 (2) | 2024.07.25 |
| 우분투에서 stm32cubeide 삭제 (0) | 2024.07.24 |
| STM32H7 디버깅 설정(cubeIDE) (0) | 2024.07.22 |
| STM32H750 operation mode (0) | 2024.07.22 |
버전을 넣어서 삭제하면 끝
| $ sudo apt purge segger-jlink-udev-rules st-stlink-server st-stlink-udev-rules st-stm32cubeide-1.5.0 |
[링크 : https://askubuntu.com/questions/1444347/uninstall-stm32cubeide]
| stm32cubeide 펌웨어 업데이트 이후 자동 재시작 (2) | 2024.07.25 |
|---|---|
| stm32cubeide(eclipse) project clean시 빌드 하지 않기 (0) | 2024.07.24 |
| STM32H7 디버깅 설정(cubeIDE) (0) | 2024.07.22 |
| STM32H750 operation mode (0) | 2024.07.22 |
| STM32 MPU(Memory Protection Unit) (2) | 2024.07.22 |
Halt all cores 를 체크해서
Cortex-M7을 멈추면 Cortex-M4 도 같이 멈추고
Cortex-M4 에는 Halt 옵션이 없으니 M7을 멈출수 없어서 M4만 멈췄나 보다.
| stm32cubeide(eclipse) project clean시 빌드 하지 않기 (0) | 2024.07.24 |
|---|---|
| 우분투에서 stm32cubeide 삭제 (0) | 2024.07.24 |
| STM32H750 operation mode (0) | 2024.07.22 |
| STM32 MPU(Memory Protection Unit) (2) | 2024.07.22 |
| STM32 HSEM (Hardware SEMaphore) (0) | 2024.07.22 |
소스를 뒤져보면서 메뉴얼 찾아보는 중
stm32h7xx_hal_pwr_ex.c 파일에 보면 D3Domain 이라고 PWR_CPUCR_RUN_D3 라고
d3 도메인의 cpu (cortex-m4)를 살리는 녀석으로 보인다.
| void HAL_PWREx_ConfigD3Domain (uint32_t D3State) { /* Check the parameter */ assert_param (IS_D3_STATE (D3State)); /* Keep D3/SRD in run mode */ MODIFY_REG (PWR->CPUCR, PWR_CPUCR_RUN_D3, D3State); } |
| /******************** Bit definition for PWR_CPUCR register *****************/ #define PWR_CPUCR_RUN_D3_Pos (11U) #define PWR_CPUCR_RUN_D3_Msk (0x1UL << PWR_CPUCR_RUN_D3_Pos) /*!< 0x00000800 */ #define PWR_CPUCR_RUN_D3 PWR_CPUCR_RUN_D3_Msk /*!< Keep system D3 domain in RUN mode regardless of the CPU sub-systems modes */ /******************** Bit definition for PWR_CPU2CR register ****************/ #define PWR_CPU2CR_RUN_D3_Pos (11U) #define PWR_CPU2CR_RUN_D3_Msk (0x1UL << PWR_CPU2CR_RUN_D3_Pos) /*!< 0x00000800 */ #define PWR_CPU2CR_RUN_D3 PWR_CPU2CR_RUN_D3_Msk /*!< Keep system D3 domain in RUN mode regardless of the CPU sub-systems modes */ |
stm32h757xi.pdf 데이터 시트 31page
어.. D2 domain에 Cortex-M4 였네..
rm0399-stm32h745755-and-stm32h747757-advanced-armbased-32bit-mcus-stmicroelectronics.pdf
| 7.6.1 Operating modes Several system operating modes are available to tune the system according to the performance required, i.e. when the CPU(s) do not need to execute code and are waiting for an external event. It is up to the user to select the operating mode that gives the best compromise between low power consumption, short startup time and available wakeup sources. The operating modes allow controlling the clock distribution to the different system blocks and powering them. The system operating mode is driven by CPU1 subsystem, CPU2 subsystem and system D3 autonomous wakeup. A CPU subsystem can include multiple domains depending on its peripheral allocation (see Section 9.5.11: Peripheral clock gating control). The following operating modes are available for the different system blocks (see Table 34): • CPU subsystem modes: – CRun CPU and CPU subsystem peripheral allocated via RCC PERxEN bits are clocked. – CSleep: The CPU clocks is stalled and the CPU subsystem allocated peripheral(s) clock operate according to RCC PERxLPEN. – CStop: CPU and CPU subsystem peripheral clocks are stalled. • D1 domain and D2 domain modes: – DRun The domain bus matrix is clocked: - The domain CPU subsystem(a) is in CRun or CSleep mode, or - the other domain CPU subsystem(a) having an allocated peripheral in the domain is in CRun or CSleep mode. – DStop The domain bus matrix clock is stalled: - The domain CPU subsystem is in CStop mode and - The other domain CPU subsystem has no peripheral allocated in the domain. or the other domain CPU subsystem having an allocated peripheral in the domain is also in CStop mode and - At least one PDDS_Dn(b) bit for the domain select DStop. – DStandby The domain is powered down: - The domain CPU subsystem is in CStop mode and - The other domain CPU subsystem has no peripheral allocated in the domain or the other domain CPU subsystem having an allocated peripheral in the domain is also in CStop mode and - All PDDS_Dn(b) bits for the domain select DStandby mode. • System /D3 domain modes – Run/Run* The system clock and D3 domain bus matrix clock are running: - A CPU subsystem is in CRun or CSleep mode or - A wakeup signal is active. (i.e. System D3 autonomous mode) The Run* mode is entered after a POR reset and a wakeup from Standby. In Run* mode, the performance is limited and the system supply configuration shall be programmed in PWR control register 3 (PWR_CR3). The system enters Run mode only when the ACTVOSRDY bit in PWR control status register 1 (PWR_CSR1) is set to 1. – Stop The system clock and D3 domain bus matrix clock is stalled: - both CPU subsystems are in CStop mode. and - all wakeup signals are inactive. and - At least one PDDS_Dn(b) bit for any domain select Stop mode. – Standby The system is powered down: - both CPU subsystems are in CStop mode and - all wakeup signals are inactive. and - All PDDS_Dn(b) bits for all domains select Standby mode. In Run mode, power consumption can be reduced by one of the following means: •Lowering the system performance by slowing down the system clocks and reducing the VCORE supply level through VOS voltage scaling bits. •Gating the clocks to the APBx and AHBx peripherals when they are not used, through PERxEN bits. a. The domain CPU subsystem, for example CPU1 subsystem for D1 domain. a. The other domain CPU subsystem, for example CPU1 subsystem for D2 domain. |
| 9 Reset and Clock Control (RCC) The RCC block manages the clock and reset generation for the whole microcontroller, which embeds two CPUs: an Arm® Cortex®-M7 and an Arm® Cortex®-M4, called CPU1 and CPU2, respectively. The RCC block is located in the D3 domain (refer to Section 7: Power control (PWR) for a detailed description). The operating modes this section refers to are defined in Section 7.6.1: Operating modes of the PWR block. |
cpu1 power 용
cpu2 power 용. 서로 접근하면 되나?
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