Attiny is a circuit board used for embedded system development, including a series of hardware components such as central processing unit, memory, input device, output device, data path/bus and external resource interface. Development boards are generally customized by embedded system developers themselves according to development needs, and can also be researched and designed by users themselves. The development board is for beginners to understand and learn the hardware and software of the system. At the same time, some development boards also provide the basic integrated development environment, software source code and hardware schematic diagram. Common development boards include 51, ARM, FPGA, and DSP development boards. The following editor will introduce to you "what is the purpose of the development board and how to choose the development board"

The role of attiny:

1. It can be used as a programmer (that is, a programmer) to write the program written by yourself into the single-chip microcomputer, but there are only a few types of programming single-chip microcomputers, and there are not too many models.

2. You can use some hardware on the development board to do some MCU experiments (no need to build the experimental circuit yourself), which is beneficial for beginners. The study of single-chip microcomputer requires both theory and hands-on, and both theory and practice are emphasized.

Attiny selection skills:

For embedded system development, you must first select the type of CPU, FPGA, and DSP that meet your own development needs, and then select the range of development boards that support the selected chip according to the selected type of CPU, FPGA, and DSP. Again, the ability and level of the development environment and technical support provided by the development board are preferred. Finally, it is necessary to consider that in addition to integrating CPU, FPGA, DSP, etc., the development board also needs a relatively complete input and output interface, such as keyboard and LCD, program download interface, memory (RAM), FlashROM, power supply module, etc. At the same time, for the convenience of debugging at the initial stage of development, several special pins, such as JTAG interface, USB and serial ports, will be drawn out for use by external debugging modules.

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