@AugustRobot_Zou 确认你的TTL转RS232模块使用的芯片是3.3V的还是5V的,如果是5V的可能存在漏电导致系统3.3V电压升高,进而影响EMMC正常工作。解决办法使使用3.3V的模块。
Posts made by george
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RE: coolpi4b 在EMMC使用时,40pin 5V是否有功耗限制?
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RE: coolpi4b 在EMMC使用时,40pin 5V是否有功耗限制?
@AugustRobot_Zou 应该不是这里5V电源导致的。提供一下不能启动的串口日志。
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RE: Introduction to COOL PI CM5 interface
@george WIFI固件下载链接如下 ,根据日志信息把对应firmware拷贝到机器/lib/firmware目录即可。
git clone git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
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RE: Introduction to COOL PI CM5 interface
@wuming 驱动默认已经集成。只需要拷贝BIN文件进去。晚点发链接出来,先帮忙上传一下dmesg
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RE: Low power mode 的一些方法請益
@tonyone0902
如下命令就可以调用到jpeg硬件解码gst-launch-1.0 v4l2src device=/dev/video22 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! videoconvert ! fpsdisplaysink signal-fps-measurements=true sync=false
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RE: Coolpi support 32GB of RAM
@Mz3D-0 The 256G EMMC is expected to hit shelves in May.
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RE: Low power mode 的一些方法請益
@tonyone0902
1.设备树里边把不需要的模块可以disabled掉。
2.AI算法使用RKNN处理,尽量不直接用CPU跑.
3.应用层图像数据拷贝和格式转换使用RGA硬件模块实现,能效比高很多。
4.如果是USB摄像头,MJPG解码使用rkmpp硬件解码。 -
Coolpi uses UMS to update the system
Coolpi supports UMS to update emmc firmware, as follows:
- Update the latest versions of loader and uboot images. You can also synchronize uboot code and compile it yourself.
git clone https://github.com/yanyitech/coolpi-loader cd coolpi-loader ./build-uboot.sh cp4b
- Connect a dual A port USB cable to the computer and the upper USB 3.0 interface. Plug in the power and press the power button three times, and the machine will enter UMS mode.
- Use Etcher software to update the software.
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Coolpi support 32GB of RAM
Through the continuous efforts of engineers, coolpi can perfectly support 32GB LPDDR4/4X memory. There is better support for AI large models and server scenarios. The 32GB version of the 4b machine will be officially released in May. Thank you for your support.
Clock rate up to 2112M, data rate 4224M.
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RE: Questions before buy
- Can support mesa GPU driver, compatible with X11 WAYLAND
- Currently maximum 128 G, more than 128 G need to be customized, such as 256 G.
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RE: Cool-pi 4b case
@Mz3D-0 You can purchase the CP4B official radiator kit from the agent
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Welcome to the COOLPI wiki
Wiki provides the information of each product download, will be further improved in the future, thank you for your support.
https://wiki.cool-pi.com/en/home
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RE: HDMI接口新增特殊分辨率时序
@顾真牛 改为动态分频测试一下
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-cpcm5-evb.dts b/arch/arm64/boot/dts/rockchip/rk3588-cpcm5-evb.dts index da170f0b2086..3f01ba675516 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-cpcm5-evb.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-cpcm5-evb.dts @@ -1015,6 +1015,10 @@ &hdptxphy_hdmi0 { status = "okay"; }; +&hdptxphy_hdmi_clk0 { +status = "okay"; +}; + #if 1 &hdmi1 { enable-gpios = <&gpio4 RK_PB2 GPIO_ACTIVE_HIGH>; @@ -1044,6 +1048,10 @@ &route_hdmi1 { &hdptxphy_hdmi1 { status = "okay"; }; + +&hdptxphy_hdmi_clk1 { +status = "okay"; +}; #endif &dp0 { @@ -1304,6 +1312,8 @@ &uart2 { }; &display_subsystem { + clocks = <&hdptxphy_hdmi_clk0>, <&hdptxphy_hdmi_clk1>; + clock-names = "hdmi0_phy_pll", "hdmi1_phy_pll"; memory-region = <&drm_logo>; memory-region-names = "drm-logo"; };
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HDMI接口新增特殊分辨率时序
DRM 框架目前代码已经支持了绝大部分分辨率时序,但是部分 HDMI 屏幕旋转的场景下,可能还有一些特殊分辨率不支持。需要在 kernel\drivers\gpu\drm\drm_edid.c 中的drm_dmt_modes 的末尾新增项目:
/* 0x58 - 4096x2160@59.94Hz RB */ { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 556188, 4096, 4104, 4136, 4176, 0, 2160, 2208, 2216, 2222, 0, DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC) },
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RE: cm5-evb 的刷机教程希望出一个
@顾真牛 uboot 和kernel 搜索edid.c 有个白名单把你的分辨率加进去 static const struct base_drm_display_mode resolution_white[]
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RE: cm5-evb 的刷机教程希望出一个
@顾真牛 可以抓下开机log和这个显示器的edid:
cat /sys/class/drm/card0-HDMI*/edid > /data/edid.bin