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Showing results for tags 'bananapi'.
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Hi all, I recently bought a Banana BPI M2 Zero for a personal human-machine interaction project as this was the only (cheap) available option w.r.t. my specs (HDMI, entry-level OpenGL GPU, enough CPU power for the task). I got a version with Allwinner H3 (which in my view is good) and also read through the H3 buyer's guide. According to that guide, the CPU should be sourced by 1.3V, but to my (positive) surprise, I measured only 1.15V at the output coil (after the coil and against GND, of course) of the SY8113 regulator. However, there's certainly something not working as expected from the schematics: both, the SY8113 and the SY8089 1.2V regulators (SYSTEM+CPUX) should be connected to the same enable signal PWR-STB, but to my (negative) surprise the board only powers off (executing "poweroff") the SY8113 and all 3 other regulators still keep running. Power consumption in that state is even higher (~0.7-0.8W) compared to running linux idle (~0.5W). My expectation was that 3 of the 4 regulators (with the exception of 3V3) would be powered down. The 1.15V is in line with the schematics I have and possibly it's probably not reported correctly in the buyer's guide. I'm using Armbian_21.08.1_Bananapim2zero_hirsute_edge_5.13.12.img for my tests so far, but may switch to buildroot for deployment. Does anyone see a similar behaviour with the H3 version of the board? Best, Stephan
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Flashed the latest Jammy 5.15.48 image and the device went offline After connecting to HDMI I found out that RTL8188EUS is no longer available. Previous Focal image worked fine in headless mode with a `0bda:8179` dongle. Anyone knows why the driver has been removed? Thanks -
Hello. I reactivated my old BananaPi M1 to measure some Temperatures by Dalla1820-Sensors. This is working like a charm and I could resolve all the Problems I had. But now I want to use also one GPIO-Pin as an digital Input (via bash) But all manuals I found in the Internet didn't work. Every Time i try to setup a Pin by sudo echo (Pin-number) > /sys/class/gpio/export I get the message, that I don't have the rights to do this. Could it be, that the GPIO are not usable, when I activated 1wire ? (of course I used a different Pin as I use for 1wire) Or must I activate some more options as only "w1-gpio" in the armbian-config-Tool. I have experience with Linux, but not with the GPIO's it self. So maybe someone would be so kind and could explain it to me. Thanks a lot in advance Robert aka MaoDe
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Hi all, SPI has been enabled into /boot/armbianEnv.txt with: overlays=spi-spidev param_spidev_spi_bus=0 Nothing works knowing that the wiring between device and BPI has been checked more than 3 time. How can I check that SPI0 works well? where can I check that dtd file is correctly loaded? What are created files on fs when the spi port is correctly enabled? ==> Armbian 21.05.1 Focal with Linux 5.15.48-sunxi Many thanks
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After trying different distro for the BPI M2 Zero, I installed Armbian, and it works great with a standard 16:9 screen. Now I would like to use a bar LCD (Waveshare 7.9 inches); but the setup instructions are for RPI, not for Armbian, so I am not sure how you set up a screen that is not default (And I exclude that I can just plug in the screen and it will magically work. I am not using X interface since the BPI is quite slow, so I am in terminal. Thanks
