Author: GWD Time: 2019.7.2
First, the course content:
1, brief linux;
1), linux kernel and linux release contact:
2, install ubuntu virtual machine;
Second, learning points:
1, asked: SCM (MCU) and MCU (microcontroller) the difference?
A: Actually, the concept is not between the MCU and SCM strict distinction at work, many times not and will to "SCM" unified call, with the advent of the SOC, "SCM" usually refers to the operating system does not run, function relatively simple embedded systems;
? 2, Q: What is SOC (system on chip)
a: with the development of design and manufacturing technology, integrated circuit design integrated from the integrated development of the transistor logic gates, and now developed to the IP integration that SOC technology. SOC suitably defined as, using a predetermined system module IP (Intellectual Property) and to rapid development of the integrated circuit on a chip, which integrates the processor, memory management unit (the MMU), and other components.
3, Q: The concept of ARM?
A: ARM can be considered both a company's name, can also be considered a class known as micro-processing can also be considered a technical name, IP core based on ARM microprocessor technology has sold more than 10 billion, the company ARM does not manufacture chips, but authorized the sale of chip technology, its partner companies with various types of hardware components for different needs, such as UART, I2C and so different design SOC chip;
4, Q: Why did you choose linux in embedded systems?
A: As electronic devices become "equivalent to the PC", the system is growing, more and more applications, it is necessary to use the operating system, the role of the operating system are: unified resource management system, to provide users with access to hardware interface, scheduling multiple applications, file management systems.
Third, the Code: None