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As far as 5 1 series is concerned, Intel has transferred the right to use its kernel to many famous IC manufacturers in the world in the form of patent exchange or sale, such as Philips, Siemens, AMD, ATMEL, SST and STC. , 5 1 series has become a big family supported by many manufacturers, and hundreds of varieties have been developed. So far, no other single chip microcomputer series has developed to such a scale.
This kind of single chip microcomputer has the advantages of high integration, superior cost performance and sufficient supply, and has been widely used in the field of industrial measurement. 5 1 series single chip microcomputer is the mainstream model in China, and its development tools (simulator, programmer, compilation system, etc.). ) it is also easy to buy and the price is relatively low. We also choose to learn 5 1 series.
In the 5 1 series single-chip microcomputer, according to the type of ROM (program memory), it can be roughly divided into three types: 1, and the ROM with internal mask on the chip (8051) is written into the program by the manufacturer with the last process mask technology and cannot be modified by the user. Used for mass production. 2. The chip is externally connected with ROM (803 1). This kind of single-chip microcomputer itself does not contain ROM, and needs to be externally connected by users themselves. It is mainly used for the early development of 5 1 series single-chip microcomputer. 3. On-chip with EPROM (875 1). At present, this single chip microcomputer is commonly used in OTP and FLASH.
Keil C5 1 is a 5 1 series software development system compatible with single chip microcomputer C language, which is produced by American Keil Software Company. Compared with assembly language, C language has obvious advantages in function, structure, readability and maintainability, so it is easy to learn and use. Using assembly language and then using C to develop, the experience is more profound.