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  6. u-boot-erase-spi-rockpro64.img.xz

u-boot-erase-spi-rockpro64.img.xz

Verschoben Tools
  • FrankMF

    INFO's

    Anwendung

    Die Datei auf eine SD-Karte schreiben, den ROCKPro64 damit starten. Diese Tool löscht den SPI-Speicher, so das man wieder ganz normal mit einer SD-Karte / eMMC-Karte starten kann.

    Wenn der Löschvorgang beendet ist, blinkt die weiße LED auf dem Board!

    Status

    1. August 2018: Funktioniert einwandfrei.

    Im Fediverse -> @FrankM@nrw.social

    1. NanoPi R5S
    2. Quartz64 Model B, 4GB RAM
    3. Quartz64 Model A, 4GB RAM
    4. RockPro64 v2.1
    0

  • FrankMF

    Images 0.10.x

    Angeheftet Images
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    FrankMF

    0.10.12: gitlab-ci-linux-build-184 released

    0.10.12: Be strict on any qemu failures 0.10.12: Build by default mate/lxde/gnome/xfce4 0.10.12: Add pcie scan delay from @nuumio 0.10.12: Add ubuntu-mate-lightdm-theme where possible

    Ich komme gar nicht mehr mit dem Testen hinterher 🙂

  • FrankMF

    ROCKPro64 - Stromaufnahme wenn OFF

    ROCKPro64
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    FrankMF

    Die Idee war, das eine evt. sehr kleine Stromaufnahme mit dieser Art "Meßgerät" nicht vernünftig erfasst werden kann.

  • FrankMF

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

    ROCKPro64
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  • FrankMF

    Die ersten Schritte nach der Installation!

    Angeheftet ROCKPro64
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  • FrankMF

    ROCKPro64 v2.1 - Und wieder mal einer der Ersten? ;)

    ROCKPro64
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    FrankMF

    Ein paar Hardware Änderungen

    Weiße LED gedimmt

    0_1532529766212_IMG_20180725_151430_ergebnis.jpg

    Neue LED grün, neben dem Eingang der Stromversorgung

    0_1532529863801_IMG_20180725_151421_geändert.jpg

  • FrankMF

    stretch-minimal-rockpro64

    Verschoben Linux
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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
  • FrankMF

    ROCKPro64 - PCIe x4

    Verschoben Hardware
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    FrankMF

    @Northstar Hallo, laut meinen Info's nicht, hat irgendwas mit der Speicheradressierung zu tuen. Und Grafikkarten benötigen wohl zu viel. Das ist das, was ich bei den vielen Diskussionen im IRC so aufgeschnappt habe.

    Ich habe es auch schon mal genauso probiert - natürlich ohne Erfolg.

  • FrankMF

    Serielle Konsole UART2

    Angeheftet Verschoben Hardware
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    FrankMF

    Ich verweise mal auf einen Artikel auf einer Webseite von mir, der Einsteiger Niveau hat.
    https://frank-mankel.de/wichtig/serielle-konsole

    Wenn es dann noch Probleme gibt, einfach fragen.

    Und beachte bitte, das wir hier nicht über PIs schreiben, sondern über ROCKPros. Da könnte es kleine Unterschiede geben. https://www.raspberrypi.org/documentation/configuration/uart.md