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martinayotte

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Posts posted by martinayotte

    OrangePi Zero cant use SPI1 pins as GPIO

    in Allwinner sunxi

    Posted

    19 minutes ago, mustafa_meta said:

    No.  OPi Zero and OPi Zero LTS. I have problem with OPi Zero LTS now.  OPi Zero work fine. 

    Did you try to use the same SDCard from the working one into the other one ?

    19 minutes ago, mustafa_meta said:

    Is there an internal disk in the OPi card, such as eMMC flash.  I guess the answer is no.

    Yes, there is a SPINOR flash, but since SPI isn't enable, it should not interfere ...

     

    BTW, the whole thing remind me a 2 years old thread here :

     

    Do you have UART3 overlay in /boot/armbianEnv.txt ? The PA13/PA14 pins would be in-use if UART3 is enabled ...

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    OrangePi Zero cant use SPI1 pins as GPIO

    in Allwinner sunxi

    Posted

    17 minutes ago, mustafa_meta said:

    "cat /proc/device-tree/soc/spi@1c69000/status" is nothing show.

    It should show something, but without newline, only at left of command prompt, it must be either "okay" or "disabled"

    18 minutes ago, mustafa_meta said:

    I tried completely the same steps on another OPi Zero and everything okay with it.

    Are both boards are identical, same revision number ?

    19 minutes ago, mustafa_meta said:

    Is there storage for gpio config other than sd card?

    I don't understand the question ...

    20 minutes ago, mustafa_meta said:

    Maybe pins damaged ?

    I doubt, i says "already in use" ...

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    Orange pi 4

    in Rockchip

    Posted

    1 hour ago, haajee said:

    Strange enough do i got troubles when i format it before

    As I said, formatting is completely not needed since "etcher" will overwrite using partition scheme provided by the image.

    1

    Cannot obtain spidevX.Y on BananaPi M1+

    in Allwinner sunxi

    Posted

    22 minutes ago, playrich said:

    can't access /sys/class/gpio/gpio%d/direction GPIO pin. check access rights

    It seems a trouble accessing a specific GPIO, not related to SPI, but message with %d is not meanful.

    To get it more meanful, you need to fix it there :

    https://github.com/nRF24/RF24/blob/master/utility/SPIDEV/gpio.cpp#L48

    It should probably be instead : 

    throw GPIOException("can't access /sys/class/gpio/gpio%d/direction GPIO pin. check access rights", port);

    You can also check if the previous "export" worked by looking at "ls -l /sys/class/gpio/" to seen if the specific GPIO been exported.

    Maybe the GPIO is already in use, you can verify that by doing "cat /sys/kernel/debug/gpio" ...

    0

    How enable SPI slave mode?

    in Allwinner sunxi

    Posted

    33 minutes ago, RuslanGennadievich said:

    If i have /sys/class/spi_slave on Armbian, does this mean that the kernel has support spi slave?

    From my knowledge/understanding, it only mean that kernel has been compiled with CONFIG_SPI_SLAVE enabled, but no hardware is attached to it since neither drivers/spi/spi-sun4i.c and drivers/spi/spi-sun6i.c provide such functionalities.

     

    EDIT: you have probably seen that this /sys/class/spi_slave folder is empty ...

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    SPI on ODroid-C2

    in Amlogic meson

    Posted

    1 hour ago, crazyquark said:

    Or I can just download a patched DTS and compile it to DTB?

    Even easier than that : decompile DTB currently present on you board, edit the resulting DTS by changing "status" node of "spi-gpio" to "okay" instead of "disabled", then recompile DTS into DTB.

    0

    How enable SPI slave mode?

    in Allwinner sunxi

    Posted

    2 minutes ago, RuslanGennadievich said:

    Maybe you know how add slave support to driver?

    No, it is too complex task ...

     

    2 minutes ago, RuslanGennadievich said:

    Yes, on oscilloscope i verify clock line on "slave soc" and see some signal, but in slave mode it's wrong

    I don't understand what you mean ...

    0

    How enable SPI slave mode?

    in Allwinner sunxi

    Posted

    13 minutes ago, RuslanGennadievich said:

    how i can reconfigure or rebuild linux kernel driver to support slave?

    As I said, kernel driver for AllWinner SoC doesn't support "slave" mode.

     

    8 minutes ago, RuslanGennadievich said:

    My ultimate goal is to test SPI baud rate :)

    What do you mean by testing baud rate ?

    If you wish to measure/verify the clock, you can take a oscilloscope...

    0

    Problems enabling UART serial console on Orange Pi Lite 2

    in Beginners

    Posted

    5 minutes ago, JORGETECH said:

    I just tried with a MAX3232 TTL-to-RS232 adapter

    Don't do that, it can burn your H5 UART, RS232 are using inverted level of +/- 9V to 12V !!!

    6 minutes ago, JORGETECH said:

    I'm thinking of buying one of those cheap TTL-to-USB adapters (CP2102) if it turns out to be the only way to connect serial to this devices.

    Right ! Not only CP2102, but there are others, such CH340.

    Seeing your footer, in the meantime, you can use your OPiZero since it has UART1 on header.

    1

    Switching SUNXI-DEV to 5.6.y

    in Advanced users - Development

    Posted

    2 hours ago, Cybrpunk said:

    Would you also know if the standard peripherals (I2C, SPI, GPIO, etc)

    All those are working fine.

    2 hours ago, Cybrpunk said:

    WiFi, Bluetooth, MIPI DSI and CSI are working in current RC?

    Wifi ? Yes !

    Others are not tested ...

    2 hours ago, Cybrpunk said:

    make your changes available?

    Maybe soon, since 5.6.0 is now at RC6 ...

    0

    Pinebook Pro

    in Pinebook Pro

    Posted

    11 hours ago, GOrd said:

    I don't have a serial cable to see if there is boot messages to serial.

    That is a MUST if you wish to help figured out why your PBP doesn't boot.

     

    BTW, no one here got an Armbian image working with the LCD display yet !

    We still have to figure out why, but it will take time ...

    1

    Orange pi 4

    in Rockchip

    Posted

    2 hours ago, haajee said:

    I format it on Linux Mint as FAT32 and then write it.

    You don't need to format any SDCard before writing an image ... The image is providing the formatting ...

    0

    Cannot obtain spidevX.Y on BananaPi M1+

    in Allwinner sunxi

    Posted

    22 hours ago, playrich said:

    Find posted my serial boot

     

    Ok ! I've figured it out !

     

    The fixup scripts /boot/dtb/overlay/sun7i-a20-fixup.scr, /boot/dtb/overlay/sun5i-a13-fixup.scr and /boot/dtb/overlay/sun4i-a10-fixup.scr are all using "soc@1c00000" node instead of plain "soc" node, while the script /boot/dtb/overlay/sun8i-h3-fixup.scr is already using the good node naming.

    The reason is because in the old days of 4.x.y, the node was named "soc@1c00000" while in 5.x.y it is the shorter version.

    I will fix that in Armbian patches later ...

    In the meantime, you can do backup of /boot/dtb/overlay/sun7i-a20-fixup.scr, copy it also as /root/sun7i-a20-fixup.cmd, edit it, remove the binary header until "# overlays fixup script" header, search all "soc@1c00000" and replace by plain "soc", save the file, and finally convert it again in script file using "mkimage -C none -A arm -T script -d  /root/sun7i-a20-fixup.cmd /boot/dtb/overlay/sun7i-a20-fixup.scr"

     

    EDIT: Commit done ! https://github.com/armbian/build/commit/ca24fd20e48ff6e004279b0cb14dca746231e648

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