@tonyone0902 数据格式的问题可能性比较大。
Posts made by george
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coolpi is a cool computer
The CM5-evb board has two native eDP interfaces, designed according to the standard 30PIN eDP interface, and can directly drive an eDP LCD without any conversion. Interface integrated backlight control circuit. LCD backlight brightness adjustment can be achieved.
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RE: Type c power port
@lej40 said in Type c power port:
Is the the type-c PD port also a USB-c data port
Sorry,This port is used for power supply and has no data connection.
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RE: 是否可以 3顆 18650 並聯輸出電到 typeC USB 充電孔?
@tonyone0902 如下图所示,板子的BOTTOM面有测试点,可以焊接外部电源。
机器本身不具备电量侦测功能,可以外加库仑计通过I2C接口。 -
RE: 是否可以 3顆 18650 並聯輸出電到 typeC USB 充電孔?
@tonyone0902 最低输入电压5V,所以并联是不行的,串联12V从TYPEC输入没有问题。
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CM5-EVB Commissioning Description
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Product image
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All interface functions have been debugged and are currently undergoing performance optimization.
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It is expected to be sold normally in early April.
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RE: 官网源码不支持树莓派官方最新摄像头IMX477R和IMX708
@xingzhan2012 摄像头的调试周期会比较长,做AI部分对摄像头像素要求不会太高,可以考虑先使用USB接口的摄像头模组。
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RE: Cool Pi 4B 如何使用GPIO啊,树莓派的HQ Camera如何使用呢?
@xingzhan2012 摄像头可以使用gstreamer。默认的镜像里边已经支持。
USB摄像头预览,参数根据自己设备的情况修改:gst-launch-1.0 v4l2src device=/dev/video20 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! kmssink plane-id=88
摄像头编码:
gst-launch-1.0 v4l2src device=/dev/video11 ! video/x-raw,format=NV12 ! mpph264enc ! h264parse ! filesink location=1.h264 -e
注意:默认的mipi摄像头对应的video11节点,USB摄像头对应的video20.
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RE: 双4K usb摄像头
@jugg QT调用gstreamer的例子网上有很多,QT官方也有教程。先尝试一下。注意KMSSINK虽然性能比较好,但是会独占图层。开发的时候注意下。
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RE: Coolpi 4B ubuntu support
gst-launch-1.0 v4l2src device=/dev/video20 ! image/jpeg, width=3840, height=2160, framerate=30/1 ! jpegparse ! mppjpegdec ! videoconvert ! fpsdisplaysink sync=false signal-fps-measurements=true sync=false
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RE: Ubuntu kernel upgrades
@sushruth The 6. x kernel version has been processed internally and is expected to be released in the second quarter.Thank you for your support.
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RE: Coolpi 4B ubuntu support
@jugg 不好意思,手上目前没有4K的设备,要晚一点才能测试。你可以尝试修改如下配置:
/etc/profile.d/gst.sh
默认的最大分辨率改为你目前sensor的最大分辨率。
export GST_V4L2SRC_MAX_RESOLUTION=3840x2160 -
RE: Coolpi 4B ubuntu support
@jugg 我这边测试0306的固件也是正常的。两路1080P/25FPS。
gst-launch-1.0 v4l2src device=/dev/video20 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! videoconvert ! fpsdisplaysink sync=false signal-fps-measurements=true gst-launch-1.0 v4l2src device=/dev/video22 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! videoconvert ! fpsdisplaysink sync=false signal-fps-measurements=true