[Raspberry Pi alternative BIGTREETECH CB1 core board & PI4B] Review 4: Functional interface test

天意无罪

[Raspberry Pi alternative BIGTREETECH CB1 core board & PI4B] Review 4: Functional interface test [Copy link]

 

I posted two review posts before the New Year, and I was planning to complete the remaining posts after the New Year. However, I started traveling for a long time as soon as I got back to work in the new year. It seems that after the epidemic is relaxed, companies will start to run around the market, meet with clients... They all want to make up for the losses during the epidemic as much as possible.

This is the fourth review post and also the first post after returning home from a business trip. According to the rules, the review activity has ended. I would like to thank the editor and the event organizer for extending the review time for me.

In the second post, the SD card interface, WIFI interface, and Micro HDMI interface of the development board were tested. The remaining interfaces are USB interface, Ethernet interface, CSI and DSI interface, and 40PIN GPIO interface. The CSI and DSI interfaces need to be used with Raspberry Pi CM4, so only the USB interface, Ethernet interface, and 40PIN GPIO interface can be used.

1. Ethernet interface

When the development board is powered on, the green light of the Ethernet RJ45 socket is always on and the yellow light is flashing. After the system is running, the yellow and green lights are always on, which is incorrect because the network cable has not been inserted.

Figure 1

Find an Internet cable and connect it directly to the computer, configure the IP address in the shell terminal, and then ping the computer IP, which should be successful.

Figure 2

(2) USB interface

I happen to have a USB driver-free camera. I plug it into any USB port and enter the command demsg in the shell terminal to see if the device can be correctly identified.

Figure 3

(III) 40-pin GPIO interface

Since I tidied up my room during the Chinese New Year and packed up all the electronic tools, I will not test the IO for the time being.

tagetage

When the development board was powered on, I found that the green light of the Ethernet RJ45 socket was always on and the yellow light was flashing. After the system was running, the yellow and green lights were always on, which was incorrect because the network cable had not been plugged in. -----Yes, the light should not be on without a network cable. There is a method to turn off this LED light in my evaluation post.

天意无罪

tagetage posted on 2023-3-12 20:00 During the power-on process of the development board, it was found that the green light of the Ethernet RJ45 socket was always on and the yellow light was flashing. After the system is running, the yellow and green lights are always on. This state is...

Well, I have seen it. For now, I will not worry about the indicator light on the Ethernet crystal head, as long as it does not affect the use.