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  1. prije 18 sati

    When you order some caps in 0402 and mixed up metric 0402 and imperial 0402. 0603 resistor for scale

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  2. prije 19 sati
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  3. prije 21 sat

    TIL: that the Amiga CD32 Mpeg module has a fairly freely programmable RISC in the mpeg decoder (C-Cube CL450). You can upload microcode to the RISC. Do I need now one of the most expensive CD32 expansions too in my collection?

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  4. 2. velj
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  5. 2. velj

    This almost feels like hardware and software Lego ..

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  6. proslijedio/la je Tweet
    2. velj

    久々に自作MIDI音源を動かしている。自作というだけで、良い音が出るような錯覚をしちゃうのだ。

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  7. 2. velj

    HDMI Transmitter chip and Video PLL chip get properly detected on the I2C Bus

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  8. 2. velj

    UART garbage fixed. Now nicely booting into Linux 😀

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  9. 2. velj

    Ugly botch! But works, I replaced the ECP5 core voltage LDO regulator by a tiny 2A switcher. Most of my heat on the PCB came from the LDO spreading into the ground plane. Also there is something with the DDR3 ODT termination, for now ODT is disabled. PCB and FPGA stay cool now.

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  10. proslijedio/la je Tweet

    LDOもOSCも全部載せ超小型MAX10 FPGAボード/CERASITE C-02

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  11. 1. velj

    What is this gibberish ? Its Linux booting on my PCMCIA Card , plugged into an Amiga A600. UART is a bit off but funny to have a 150 "Bogomips" CPU next to the Amiga 1.5 Mips main CPU 😀

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  12. 31. sij

    And ready. M3 screw for scale

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  13. 31. sij

    Its so handy to have access to a LPKF CNC mill :) Milling stuff for the weekend hackery

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  14. proslijedio/la je Tweet

    電磁祭囃子Jamming in Tokyo🏮

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  15. 28. sij

    Finally my Colorlight 5A-75B boards made it to my doorstep (with a small pause at customs)

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  16. 28. sij

    Meh, twitter video compression kills the effect :/ Basically its traveling "blobs" in the tube. Or I just hadn't enough coffee yet..

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  17. 28. sij

    Just noticed this half b0rken fluorescent light at work. What effect causes this pulsation in the tube?

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  18. 27. sij

    All is still in spec with the LDOs running LiteX DDR3 and VexRiscv, but they certainly put a lot of heat into the PCB when stressing the ECP5 with something bigger than a simple risc-v driven LED blinky 😆

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  19. 27. sij

    In retrospect I was probably a bit overoptimistic to use a punny 1A LDO as ECP5 core voltage regulator. Will bodge in a 2A Switcher. But the next iteration of the PCB gets a serious regulator (Probably FAN53200 / 5A in tiny wlcsp package). Same applies for the DDR3 supply...

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  20. 25. sij

    Wow i planed the whole weekend for this but.... the DDR3 bringup was a matter of 4 hours, including my first ever contact with litex ! I'm totally blown away by the OSS FPGA Toolchains and it's ecosphere. Thanks for litex and aiding me trough the setup!

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