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lordofduct

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    lordofduct reacted to fatboyatdesk in NanoPI M1/Neo - GPIO - Permission issues   
    I think were basically at the same place now.
    pwm is also a linux known thing with a controller managing access to numerous pwm devices.
    This allows board developers to dynamically add pwm channels possibly as peripheral chips controled by i2c or otherwise.
    I'm not convinced pwm driver is working on FA matrix.
    I note that there wiki doesn't include it but it is in their examples.
    Puzzling that it behaves differently on Armbian and Lichee tho.
    even more puzzling is that on Lichee from a code perspective it looks to be working.
     
    I think maybe my next attempt would be to mmap the registers and see if I can get it  to output the square wave just to convince myself the hardware can do this on lichee.
    TBH. There is only one PWM  available and this is an embedded board so I am unlikely to ever share the pwm with anything else so not a terrible solution for custom applications
     
    Device Driver development is high on my list and PWM is very basic on this chip so it might be a candidate for a first driver.
    Christmas is coming so maybe over the break.
     
    If anyone out there has pwm working on an H3 (not bit banged) using the pwm driver I would love to hear about it.
  2. Like
    lordofduct reacted to lvmc in NanoPi M1 w/ ov5640 camera   
    @lordofduct, can you provide me remote SSH access to your board? I can check the ov5640 stuff for you. Me and @lex has been doing an extensive job to support cameras on cheap boards. Send me a private message, if you need help.
  3. Like
    lordofduct reacted to @lex in NanoPi M1 w/ ov5640 camera   
    In order to use the OV5640 you need the following:
     
    * Change script.bin (/boot/script.bin) to use OV5640 in this section. Use bin2fex and fex2bin tools to edit and change this section. Search forum to get the correct OV5640 configuration.
    * Edit /etc/modules and add the two lines:
    ov5640 vfe_v4l2   Boot the board and check if you have: ls /dev/video and if the camera was recognized:
    dmesg | grep OK CAM500B is on the way, as soon as i get this i post a basic Howto.
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