Vivi Study Notes

Vivi Study Notes-general Linux technology-Linux programming and kernel information. The following is a detailed description. Project Introduction:
My -- Boot project is designed as a bootloader, which is applied to the QQ2440 Development Platform (s3c2440 ).
Project value:
The main task of the project includes two directions: one is to learn vivi's software architecture, complete your own bootloader, and implement basic functions; the other is to enhance its functions based on the original functions of vivi.

The main learning objectives and values of direction 1 are as follows:
1. Be familiar with vivi's software architecture. It will be much easier to transplant vivi to a new platform.
2. Learn arm Assembly to improve the C Programming capability.
3. Familiar with the hardware platform,
Feasibility analysis:
1. vivi has a relatively small amount of code and has simple functions.
2. After you are familiar with vivi, You can port u-boot, a more powerful bootloader.

I have been studying arm + linux for two months, but I still feel a lot lacking in arm assembly. so we need to take advantage of this opportunity to make up this part. in the past two months, I have been familiar with linux, and I have learned shell, c. however, I have to be familiar with c recently. There are many things to learn from embedded systems, so we must follow a certain architecture. From the software architecture perspective, embedded systems are divided into four main points: First, bootloader (equivalent to the BIOS in a PC). Its main function is to initialize hardware and boot the kernel, because the architecture of each development board is different, therefore, it is impossible to write a general bootloader. Now I want to learn vivi, a simple bootloader, and then become familiar with the more powerful bootloader such as u-boot. Second, we need to port the kernel, third, kernel driver development, and fourth, application development.