This course provides an in-depth understanding of the knowledge points of Huawei's HCNA certification exam. The course includes: basic principles of data communication, IP address planning and design, basic VRP operations, etc.
[i=s]This post was last edited by yvonneGan on 2019-8-22 11:27[/i]Original article by Mr. Gaosuo | Huang GangThe signal rate is getting higher and higher, and any detail of PCB design can make us enta
I have a board that needs to use three serial ports. Now all three serial ports have been set up (COM1, COM2, COM3), but I found that the Serial of USB Function Clients also occupies COM1. So, where c
The following is a driver for 8255 that I wrote. It uses EP9315. The following is the driver code: #ifdef MODULE #define __NO_VERSION__ #include
#include
#endif #define __KERNEL__ #include
#include
#i
When designing, I encountered two clocks, CLK1 and CLK2. CLK1 is an external clock, and CLK2 is an internal clock. Now, for example, we don't know the relationship between the two clocks (that is, the