17. MINI PCI-E interface¶
Video introduction to this chapter:
“Use of 34-Mini-PCIe Interface”
https://www.bilibili.com/video/BV1yu4y1o75Q/?spm_id_from=333.788
pcie type of MINI PCI-E interface: PCIe Gen2 x 1 lane
Available length specifications: full height or half height
The following are LubanCat-RK series boards equipped with MINI PCI-E interface
LubanCat-1 series boards
LubanCat-2 series boards
The MINI PCI-E interface styles of the LubanCat-RK series boards are almost the same. Here, taking LubanCat-1 as an example, the picture of the MINI PCI-E interface is as follows.
注意
The copper pillars of the mass-produced MINI PCI-E interface of our LubanCat-RK series boards are only attached to the half-height position. If you need full height, you can contact us to customize.
17.1. MINI PCI-E Installation Instructions¶
注意
The MINI PCI-E interface does not support hot swapping. Please do not install or uninstall when power is on. Installing or uninstalling when power is on may cause a short circuit of the board. At least the protection of the board will shut down, and at worst it will damage the interface of the chip or burn it out.
Pay attention to installing the board with MINI PCI-E interface, the board needs to be inserted obliquely, as shown in the figure.
Then press it to the threaded copper column, tighten the screw with a screwdriver, and fix the network card.
17.2. Use with MINI PCI-E wireless network card¶
Test board |
Test object |
system |
Sending speed |
Receiving speed |
|---|---|---|---|---|
LubanCat-2 |
RTL8822CE |
openwrt |
549Mbit/s |
570Mbit/s |
LubanCat-2 |
RTL8822CE |
debian |
414Mbit/s |
425Mbit/s |
LubanCat-1 |
RTL8822CE |
debian |
407Mbit/s |
415Mbit/s |
17.3. Use with 4G network card¶
The physical connection interface is MINI PCI-E, and the actual communication interface is usb
17.4. Multiplexing into msata interface¶
Lubancat’s mini-pcie interface can not only be used as a mini-pcie function, but also can be used as an msata interface, which can be connected to msata hard disk.
Operation method:
According to the chip of the board, click to download the corresponding device tree plug-in of the board
rk3566-lubancat-msata-overlay.dtbo
rk3568-lubancat-msata-overlay.dtbo
After the download is complete, upload the file to the board, and then copy the file to the following path /boot/dtb/overlay/
Modify the board configuration file and add the corresponding configuration file according to your own board（ If you are not clear, click here to jump to the configuration file introduction ）
1 2 3 4 5 6 7 | #Modify the configuration file
vi /boot/uEnv/uEnvxxxx.txt
Add the following statement after #40pin according to your own board
dtoverlay=/dtb/overlay/rk3566-lubancat-msata-overlay.dtbo
dtoverlay=/dtb/overlay/rk3568-lubancat-msata-overlay.dtbo
|
If you want to close msata, add # before the added statement.
As shown below.
Turn on msata function
Turn off msata function
