Posts by Hobafs

    Hello again,


    I though this might have been solved with Ver 2, but I still have the same problem.
    As soon as I activate the LM 92 I2C Sensor in the kernel config I get a very long delay ( ~ 2 min ) during boot up.
    Afterwards everythig seems to work well.
    Any idea what happens there or what I can do to find out what happens?


    The sensor is connected to pin 10 and 11 of the HW ver 1.10 board.
    I also disabled SPI in the kernel but no difference.


    LG
    HoBa

    Hello,


    Thank you very much, the reference card answers the questions I had.


    In the meanwhile I activated the I2C support in the kernel and found that the pins on the connector are bound to I2C-0, as you said.
    Is SPI activeded in the standard kernel?


    I have connected a LM92 to I2c-0 and it seems to work. But now I have the following problem:
    When the kernel starts it does a very long delay ( ~ 2 min ) after giving the information that the LM92 was found.
    During that delay nothing is displayed.
    After that delay the kernel continues to boot and everything works fine.


    Any idea what happens there?
    Maybe the I2C bus is scanned for further sensors?


    Hoba

    Hello,


    I would like to connect some hardware to the I/Os of the ArmStoneA8.
    I found the example that uses the sys/class/ mechanism.
    My question is: which gpio number in /sys/class/gpio matches which XGPIO on the feature connector?
    Is there a rule for this or can I find this information in the sourcecode?


    Which I2C bus number is connected to the I2CLK / I2DAT pins of the feature connector.


    Regards,
    Hoba

    OK, this did the trick.
    Everything is working fine now.


    In the readme.txt there is a small error in the path for the compiler
    it has to be
    export PATH=$PATH\:/usr/local/arm/fs-toolchain-4.4.3/bin
    instead of
    export PATH=$PATH\:/usr/local/arm/fs-toolchain-4.4.3/usr/bin


    HoBa

    Hello,


    When trying to configure the kernel as described in the readme.txt I get the following error message:


    hoba@ubuntu:~$ cd linux-3.3-f+s/
    hoba@ubuntu:~/linux-3.3-f+s$ make fss5pv210_defconfig
    HOSTCC scripts/basic/fixdep
    HOSTCC scripts/kconfig/conf.o
    SHIPPED scripts/kconfig/zconf.tab.c
    SHIPPED scripts/kconfig/zconf.lex.c
    SHIPPED scripts/kconfig/zconf.hash.c
    HOSTCC scripts/kconfig/zconf.tab.o
    HOSTLD scripts/kconfig/conf
    ***
    *** Can't find default configuration "arch/x86/configs/fss5pv210_defconfig"!
    ***
    make[1]: *** [fss5pv210_defconfig] Error 1
    make: *** [fss5pv210_defconfig] Error 2
    hoba@ubuntu:~/linux-3.3-f+s$


    It seems that make wants to compile the kernel for my host.


    I unpacked the sources as described in the readme.
    I'm doing this on a VMware virtual machine using a Ubuntu 10.4 distribution.
    Compiling uboot works without problems.


    HoBa

    Hi all,


    OK, although I have read the above comment from Daniel, I will post the result of the test that I've done.
    The obvious result is that the mouse, keyboard and USB stick do not work when connected via a 12MBit Hub.
    With a 480MBit Hub everything works fine.


    HoBa

    Hi,


    Today at the morning I tested with a passive USB Hub and everything worked well, so far.
    I was able to mount the USB stick and the mouse worked fine.


    But this hub always communicats with 480 Mbit to the armstone. I have some 1.2 Hubs that can only do 12 Mbit. I will try them during the wekend and post the result here. Maybe the 12 Mbit cause the trouble.
    We will see.


    The tests had been done with a nornal three button mouse and the same happend with a standard keyboard.


    Best regards,
    HoBa

    Hello,


    I have done some test, following your recommendation.
    I booted into uboot.
    Connected a USB stick.
    usb start
    usb tree
    I could see the stick in the tree


    removed the stick plugged in the mouse
    usb reset
    usb tree
    nothing to see from the mouse


    removed the mouse plugged in the stick
    usb reset
    usb tree
    stick is back again


    removed the stick
    boot
    plugged in the stick again and watched the output of "tail -f /var/log/messages"


    stick is shown ( in short words )
    removed the stick
    saw the remove message in the messages


    plugged in the stick again and it was again shown in the messages


    Now the interresting thing:
    plugged in the mouse
    nothing happens
    removed the mouse
    nothing happens


    And now plugged plugged in the stick again:


    !! nothing happens !!


    This is can be reproduced.


    When I directly boot into linux the behaviour is the same, the usb stick works until I plug in the mouse than it seems as if the USB is dead.
    When I plug in the mouse in uboot nothing happens but after disconnecting the mouse usb is still working.
    So in both cases the behaviour is different, but the mouse nevers seems to work.


    HTH


    HoBa

    OK, I will do the tests, without too much hurry.
    I think you and youur colleagues have done much work the last few weeks. So enjoy your vacation! For me it's OK to wait until monday.


    Attached you will find the messages that I get when I directly boot into linux without stopping in uboot.


    I get the following answer:


    Code
    1. armStoneA8 # usb start
    2. (Re)start USB...
    3. USB: Register 1111 NbrPorts 1
    4. USB EHCI 1.00
    5. scanning bus for devices... 2 USB Device(s) found
    6. scanning bus for storage devices... 1 Storage Device(s) found
    7. armStoneA8 #


    The USB Mouse also worked with the Win CE image.


    The behaviour is the same in the standard and the minimal rootfs.


    HoBa

    Hi,


    I have the same behaviour described by markus.


    Reboot does not change anything.
    I have directly (no Hub) connected different mice, on the standard ubi rootfs.


    I have not checked USB in uboot.


    HoBa

    Hello F&S Team,


    Another two weeks are gone since my last request.
    Do you have any update on this topic?
    Have you already made a decision which kind of touch will be used?


    Best regards,
    HoBa

    Hello,


    It depends.....


    For our later possible application we would need a capacitive touch panel (PCT multi touch if possible).
    For a first test a resistive one would be sufficient.
    Additionally the price difference between the two versions would be interesting ;-).


    So I would say for this special request, to have a chaep LCD with touch, I request a 4 wire resistive one.


    Regards,
    HoBa

    Hi all,


    So while everyone of us is desperately waiting for the delivery of our little "toy" I would like to take the chance to ask the following:
    Has anyone a recommendation for a good priced LCD in the range of 6-7 inches? Of course I also would like to use PCTouch screen as input device.
    The main request here, from my side, is good priced. Maybe F+S can check the requirements of the forums community and make an offer to this communuity,
    just like they did with the armStoneA8 offer during embedded world 2012?


    Regards,
    HoBa