From basic knowledge for beginners to practical tips, 100 Q&A essentials suitable for beginners to master microcontrollers.
1. What are the advantages and disadvantages of C language and assembly language in microcontroller development? Answer: Assembly language is a symbolic language that uses mnemonic symbols to represent machine instructions, making it the closest language to machine code. Its main advantages are low resource consumption and high program execution efficiency. However, the assembly language may vary between different CPUs, making it less portable. C language is a structured high-level language. Its advantages include good readability and easy portability, making it a widely used computer language. The disadvantages are higher resource consumption and lower execution efficiency compared to assembly. For RISC architecture 8-bit MCUs, internal resources such as ROM, RAM, and STACK are limited. If written in C language, one C instruction compiles into many machine code instructions, which can easily lead to insufficient ROM space and stack overflow issues. Moreover, some microcontroller manufacturers may not provide C compilers. In contrast, assembly language corresponds one-to-one with machine code, making each action executed very clear, and it is easier to control the program size and stack usage, making debugging more convenient. Therefore, we still recommend using assembly language for microcontroller development. 2. Can C++ be used in microcontroller development, or is it only C or assembly?
Answer: In microcontroller development, primarily assembly and C are used; C++ is not commonly used. 3. Is it necessary to know C for microcontroller development? Answer: Assembly language is a symbolic language that uses mnemonic symbols to represent machine instructions, making it the closest language to machine code. Its main advantages are low resource consumption and high program execution efficiency. However, the assembly language may vary between different CPUs, making it less portable.
…