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  2. Pine64
  3. ROCKPro64
  4. Hardware
  5. Serielle Konsole UART2 (2)

Serielle Konsole UART2 (2)

Angeheftet Hardware
  • FrankMF

    Wegen dieser Nachfrage hier, eine Ergänzung des Beitrages https://forum.frank-mankel.org/topic/53/serielle-konsole-uart2

    IMG_20200227_091816_ergebnis.jpg

    Es ging um die Nachfrage, wie man eine Verbindung aufbaut. Ich setze voraus, das die Verbindung mit dem Adapter besteht, dazu kann man Informationen im ersten Beitrag bekommen.

    IMG_20200227_091855_ergebnis.jpg

    Linux

    Unter Linux sind mir zwei Möglichkeiten bekannt. Ich nutze Debian Buster 10 mit Cinnamon Desktop

    • putty
    • minicom

    putty

    Ein apt search putty ergibt folgendes.

    minicom/stable,stable 2.7.1-1+b1 amd64
  Friendly menu driven serial communication program

    Installation mit

    apt install putty

    Einstellungen ROCKPro64

    putty_rp64.png

    Einstellungen BananaPI

    putty_bpi.png

    Ausgabe

    putty.png

    minicom

    Ein apt search minicom ergibt folgendes.

    putty/stable,stable 0.70-6 amd64
  Telnet/SSH client for X

    Installation mit

    apt install minicom

    Einstellungen

    minicom_desktop.png

    Das hier sind die Einstellungen meines Desktop Starters. Man kann das auch einfach über eine Konsole starten.

    minicom -8 -D /dev/ttyUSB0 -b 1500000\n

    Ausgabe

    minicom_konsole.png

    minicom_konsole2.png

    Windows

    Putty ist auf allen Plattformen erhältlich. https://putty.org/

    Im Fediverse -> @FrankM@nrw.social

    1. NanoPi R5S
    2. Quartz64 Model B, 4GB RAM
    3. Quartz64 Model A, 4GB RAM
    4. RockPro64 v2.1
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  • FrankMF

    [V] ROCKPro64 incl. PCIe SATA-Karte

    Verschoben Archiv rockpro64
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    FrankMF
    Verkauft!
  • FrankMF

    ROCKPro64 - RTL8111/8168/8411 Netzwerkkarte

    Hardware rockpro64
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    K
    na denn, tippe ich mal so auf default konfiguriert per dhcp
  • FrankMF

    Armbian 5.4.0-rc1

    Armbian armbian rockpro64
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    FrankMF
    Gut, ich bin nicht der einzige, der ständig damit Probleme hat. @tkaiser auch [image: 1578061215343-1036201d-a4b2-47be-a618-36003c07e0ce-grafik.png]
  • FrankMF

    ROCKPro64 - Netflix?

    ROCKPro64 rockpro64
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    FrankMF
    Anleitung von Kamil # Netflix Starting with 0.8.0rc13 it is possible to use Netflix on all **Ubuntu/armf** desktop images using regular Chromium browser. Due to Google policies images do not ship Widevine CDM required by Netflix to decrypt videos. Currently, Widevine CDM is only available for **armhf** and **Ubuntu**. You have to install Widevine CDM with: ```bash install_widevine_drm.sh ``` This will take between 5 to 15 mins depending on the performance of SD-card, and your Internet connection.
  • FrankMF

    ROCKPro64 (2GB) - Probleme mit der PCIe SATA-Karte??

    ROCKPro64 rockpro64
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  • FrankMF

    Unterstützung Lüfter

    ROCKPro64 rockpro64
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    FrankMF
    Mit dem neuen Release hatte jemand das mal ausprobiert -> https://forum.frank-mankel.org/topic/795/fan-control-omv-auyfan-0-10-12-gitlab-ci-linux-build-184-kernel-5-6/6 Dieser Kernel kam zur Anwendung Linux rockpro64 5.6.0-1137-ayufan-ge57f05e7bf8f #ayufan SMP Wed Apr 15 10:16:02 UTC 2020 aarch64 GNU/Linux Dort stellt man dann fest, das sich eine Kleinigkeit geändert hat. Der Pfad und der Dateiname hat sich geändert. Kontrollieren kann man das mit nano /sys/devices/platform/pwm-fan/hwmon/hwmon3/pwm1 Der Wert geht von 0 - 255, wie gehabt.
  • FrankMF

    eMMC Modul

    Hardware hardware rockpro64
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  • FrankMF

    stretch-minimal-rockpro64

    Verschoben Linux rockpro64
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    FrankMF
    Mal ein Test was der Speicher so kann. rock64@rockpro64:~/tinymembench$ ./tinymembench tinymembench v0.4.9 (simple benchmark for memory throughput and latency) ========================================================================== == Memory bandwidth tests == == == == Note 1: 1MB = 1000000 bytes == == Note 2: Results for 'copy' tests show how many bytes can be == == copied per second (adding together read and writen == == bytes would have provided twice higher numbers) == == Note 3: 2-pass copy means that we are using a small temporary buffer == == to first fetch data into it, and only then write it to the == == destination (source -> L1 cache, L1 cache -> destination) == == Note 4: If sample standard deviation exceeds 0.1%, it is shown in == == brackets == ========================================================================== C copy backwards : 2812.7 MB/s C copy backwards (32 byte blocks) : 2811.9 MB/s C copy backwards (64 byte blocks) : 2632.8 MB/s C copy : 2667.2 MB/s C copy prefetched (32 bytes step) : 2633.5 MB/s C copy prefetched (64 bytes step) : 2640.8 MB/s C 2-pass copy : 2509.8 MB/s C 2-pass copy prefetched (32 bytes step) : 2431.6 MB/s C 2-pass copy prefetched (64 bytes step) : 2424.1 MB/s C fill : 4887.7 MB/s (0.5%) C fill (shuffle within 16 byte blocks) : 4883.0 MB/s C fill (shuffle within 32 byte blocks) : 4889.3 MB/s C fill (shuffle within 64 byte blocks) : 4889.2 MB/s --- standard memcpy : 2807.3 MB/s standard memset : 4890.4 MB/s (0.3%) --- NEON LDP/STP copy : 2803.7 MB/s NEON LDP/STP copy pldl2strm (32 bytes step) : 2802.1 MB/s NEON LDP/STP copy pldl2strm (64 bytes step) : 2800.7 MB/s NEON LDP/STP copy pldl1keep (32 bytes step) : 2745.5 MB/s NEON LDP/STP copy pldl1keep (64 bytes step) : 2745.8 MB/s NEON LD1/ST1 copy : 2801.9 MB/s NEON STP fill : 4888.9 MB/s (0.3%) NEON STNP fill : 4850.1 MB/s ARM LDP/STP copy : 2803.8 MB/s ARM STP fill : 4893.0 MB/s (0.5%) ARM STNP fill : 4851.7 MB/s ========================================================================== == Framebuffer read tests. == == == == Many ARM devices use a part of the system memory as the framebuffer, == == typically mapped as uncached but with write-combining enabled. == == Writes to such framebuffers are quite fast, but reads are much == == slower and very sensitive to the alignment and the selection of == == CPU instructions which are used for accessing memory. == == == == Many x86 systems allocate the framebuffer in the GPU memory, == == accessible for the CPU via a relatively slow PCI-E bus. Moreover, == == PCI-E is asymmetric and handles reads a lot worse than writes. == == == == If uncached framebuffer reads are reasonably fast (at least 100 MB/s == == or preferably >300 MB/s), then using the shadow framebuffer layer == == is not necessary in Xorg DDX drivers, resulting in a nice overall == == performance improvement. For example, the xf86-video-fbturbo DDX == == uses this trick. == ========================================================================== NEON LDP/STP copy (from framebuffer) : 602.5 MB/s NEON LDP/STP 2-pass copy (from framebuffer) : 551.6 MB/s NEON LD1/ST1 copy (from framebuffer) : 667.1 MB/s NEON LD1/ST1 2-pass copy (from framebuffer) : 605.6 MB/s ARM LDP/STP copy (from framebuffer) : 445.3 MB/s ARM LDP/STP 2-pass copy (from framebuffer) : 428.8 MB/s ========================================================================== == Memory latency test == == == == Average time is measured for random memory accesses in the buffers == == of different sizes. The larger is the buffer, the more significant == == are relative contributions of TLB, L1/L2 cache misses and SDRAM == == accesses. For extremely large buffer sizes we are expecting to see == == page table walk with several requests to SDRAM for almost every == == memory access (though 64MiB is not nearly large enough to experience == == this effect to its fullest). == == == == Note 1: All the numbers are representing extra time, which needs to == == be added to L1 cache latency. The cycle timings for L1 cache == == latency can be usually found in the processor documentation. == == Note 2: Dual random read means that we are simultaneously performing == == two independent memory accesses at a time. In the case if == == the memory subsystem can't handle multiple outstanding == == requests, dual random read has the same timings as two == == single reads performed one after another. == ========================================================================== block size : single random read / dual random read 1024 : 0.0 ns / 0.0 ns 2048 : 0.0 ns / 0.0 ns 4096 : 0.0 ns / 0.0 ns 8192 : 0.0 ns / 0.0 ns 16384 : 0.0 ns / 0.0 ns 32768 : 0.0 ns / 0.0 ns 65536 : 4.5 ns / 7.2 ns 131072 : 6.8 ns / 9.7 ns 262144 : 9.8 ns / 12.8 ns 524288 : 11.4 ns / 14.7 ns 1048576 : 16.0 ns / 22.6 ns 2097152 : 114.0 ns / 175.3 ns 4194304 : 161.7 ns / 219.9 ns 8388608 : 190.7 ns / 241.5 ns 16777216 : 205.3 ns / 250.5 ns 33554432 : 212.9 ns / 255.5 ns 67108864 : 222.3 ns / 271.1 ns