@jugg
是的!通用的。
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RE: 使用u盘装了coolpi 4b的镜像固件,如何进入桌面
@2077205173
镜像写入U盘以后,默认就会从U盘启动,你可以去掉EMMC和TF卡模块,机器就会正常进入桌面。 -
RE: COOLPI CM5-EVB fried my laptop
@lexarion
The CM5-EVB board typec interface is only used as a power supply interface and does not need to be connected to a computer normally. And the normal TYPEC input interface has at least 20V OVP function. I don't know why the laptop motherboard is damaged?
The interface for downloading CM5-EVB images is USB 3.0. Please refer to the following document for operation. Thank you for your support.
https://wiki.cool-pi.com/en/home/cm5_quick_start -
RE: no webcam/device not found
@Momo-0
Need to cooperate with testing first to determine where the problem lies?- Connect the LCD cable and use a multimeter to test the ground impedance of the two PINs shown in the figure below
- Disconnect the LCD cable and use the same method to test the ground impedance of two PINs
Test method: Set the multimeter to the diode position, connect the red probe to GND, and connect the black probe to the signal.
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RE: RTC时间保存问题
@jugg
从上面的信息能够确认RTC的时间是正常的,关机时候是9:49,再开机是:9:57,只是RTC时间没有同步到系统。
日志也提供了方法:timedatectl set-local-rtc 0
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RE: RTC时间保存问题
@jugg
1.确认你外部电源供电电压是多少V
2.关机之前查看一下硬件RTC的时钟情况,使用如下命令:cat /proc/driver/rtc
3.关机一段时间再开机,再次查看硬件RTC时间
cat /proc/driver/rtc
然后把结果发上来。