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    quanzhi111LV 4

    @quanzhi111

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    Best posts made by quanzhi111

    • v821的板子在运行了uvc出现变色问题

      在板子起来之后,先运行了一个其他的程序比如sample_virvi2vo,然后停止掉这个程序。再运行sample_uvcout这个程序,在电脑上看到的uvc图像颜色不对的??这是什么情况???有大神知道不??

      posted in V Series
      Q
      quanzhi111
    • v821的udc 出错,dma初始化失败,gadget切换功能有问题
      root@(none):/# dmesg | grep udc
      [    0.100478] sunxi_usb_udc 44100000.udc-controller: sunxi:sunxi_usb_udc UDC Inner DMA Feature - wordaddr: -1, extend: disabled
      [    0.100950] sunxi:sunxi_usb_udc:[INFO]: write to rise data: 0x0
      [    0.101028] sunxi:sunxi_usb_udc:[INFO]: write to trancevie data: 0xb
      [    0.101036] sunxi:sunxi_usb_udc:[INFO]: write to preemphasis data: 0x2
      [    0.101049] sunxi:sunxi_usb_udc:[INFO]: write to resistance data: 0x8
      [    0.101123] sunxi_usb_udc 44100000.udc-controller: 44100000.udc-controller supply udc not found, using dummy regulator
      [    5.507731] udc 44100000.udc-controller: failed to start g1: -19
      root@(none):/#
      
      posted in Linux
      Q
      quanzhi111

    Latest posts made by quanzhi111

    • v821解码输出用AW_MPI_VDEC_SetRotate旋转90°,AW_ION_IOC_NEW_ALLOC出错,解码旋转不能用这个函数吗?

      b76db434-bbce-4166-91b5-de50eb79699d-934235c0520e2126a9218d3a8eebab4.png ,这是打印截图,有知道的大佬吗?????

      posted in V Series
      Q
      quanzhi111
    • v821 编码录制文件的时候,一直打印下面这个错误啥意思?

      f71d3874-d6e1-4350-a749-863b4d076cda-image.png 有大佬知道的吗??????

      posted in V Series
      Q
      quanzhi111
    • v821 g2d sample返回-1?这是什么原因

      00643992-a6bc-44e5-9553-2b8d1912dbcc-image.png
      就是上图这里,有知道情况的大佬吗?

      posted in V Series
      Q
      quanzhi111
    • Reply: v821调用AW_MPI_ISP_SetFlicker返回-1???

      @awwwwa 这里返回-1,打印出来看过

      posted in V Series
      Q
      quanzhi111
    • Reply: v821调用AW_MPI_ISP_SetFlicker返回-1???

      @awwwwa 传入的ISPid这个是对的

      posted in V Series
      Q
      quanzhi111
    • Reply: v821介绍里面的32倍缩放是怎么实现的?

      @jasonzhang g2d能实现32倍放大?不是1/32缩小哦。比如从6436 放大到19201080?

      posted in V Series
      Q
      quanzhi111
    • v821介绍里面的32倍缩放是怎么实现的?

      a4c87850-070c-47cb-8352-a2a2d838a1b9-image.png 有懂的大佬吗?

      posted in V Series
      Q
      quanzhi111
    • Reply: v821采用st7789v lcd, 设置disp旋转功能没有生效

      @quanzhi111
      20939ccf-97e3-49a5-b3f6-f04ff412fc2b-image.png

      disp里面的也选上了g2d,为啥还是不能旋转过来呢?????

      posted in V Series
      Q
      quanzhi111
    • Reply: v821采用st7789v lcd, 设置disp旋转功能没有生效

      @quanzhi111 有大佬知道什么情况吗?

      posted in V Series
      Q
      quanzhi111
    • Reply: 全志v821,用pwm控制灯光亮度,pwm占空比不是100%时,灯光会引起工频现象,就是频闪条纹现象,这个怎么解决??

      @quanzhi111 已解决。将周期减小到10000即可。原来的是1000000,频率是1000hz。

      posted in V Series
      Q
      quanzhi111