Embedded Development History

What is 1
2. Design Philosophy
3 Technology
4 products
5 focus
6. Outlook
7. Conclusion
8. Quality and certification

1. Open the same extended network storage software solution virtual and cloud Environments

I was so excited when I got the Development Board. At the same time, the power supply has been connected successfully, and then the communication software does not have any output information, always think that there is no connection, appear
What is the problem? The last thing I know is that I need to power down and restart. The control page is displayed as follows: press any key to stop, as if you were joking with me.
And has no effect. I think of the use of vi. I just opened the VI interface and kept pressing the buttons. However, the screen didn't respond at any time. The high enthusiasm was suddenly ruined by a cold water.

In
If you analyze the problem from a skillful perspective, you will find that it is a matter of course, but it is a high threshold for entry. After a long time, I still cannot do anything. Press the Enter key, press Ctrl + C, and then press Q.
Jump to the execution of commands. It finally came to an end.
During the kernel burning process, you can use TFTP to download the uimage kernel and enter the memory of the Development Board. The command TFTP 0x30008000 uimage is used.
When writing data into nand, the problem of byte alignment occurs. The error message displayed is as follows:
Attempt to write not page aligned DATA 0 bytes written: Error
During NAND write, the length of the filled file is based on the actual length, so this problem occurs.
When searching, you should enter a proper file length to locate the storage location of the file when writing the file.
The script format is the most important. Otherwise, the script compiler will not execute it correctly.
Next-Server
Set the server to be mounted from the boot file, such as the host name. The application has no disk workstation.
The next-Sever definition is very important, and the key step is the content of the DHCPD. conf file.
Being able to draw a gourd Based on the samples is just getting started. If you want to make it happen, you must have the ability to solve the problem. Instead, you must solve only one problem.
Although the development board is assigned an IP address, the host cannot ping the Development Board. Check whether the network cable light is on, and check whether the entire line is normal.
Where does it appear?

 

The Development Board uses U-boot to ping the VM. The displayed data is only host is alive, and the VM cannot be pinged.
The Development Board, through observation, found that: Generally, the network cable lights connected to the Development Board are not on, only when you need to burn a file and the Development Board ping the host,
Based on this, it is not difficult to infer that the host cannot be pinged to the Development Board. The reason why the Development Board is designed like this is not just to save power consumption.
It is wrong to keep an eye on whether the network cable lights are on.

Embedded Development History