I don't understand. please send me.how can I will write.

1. The purpose of the course design (1) Understand the basic principles and functions of the 8086 (2) Know how to use the microcomputer interface chip 8255. (3) Know how to use digital tubes. 2. Course design tasks Use the 8255 to expand the 8086 interface and display" 7 6 5 4 3 2 1 0 "on the digital tube. 3. The steps of the course design (1) Overall plan, system design The simulation experiment was carried out using the PROTEUS programming environment to complete the connection, program import and debugging. (2)software design The software should be clear, concise, and reasonable in structure, and convenient for design. The digital tube is a common cathode display, consisting of eight digital tubes, using dynamic scanning. Connect the "word line" and "bit line of the digital tube with the PA and PB output interfaces of the 8255. Adjust the delay time and observe the dynamic display effect. (3) system debugging 4. Course design report The content of the course design report Design tasks and requirements System solution (design ideas, used chips and functions), draw system block diagram and description Design method - hardware design, draw circuit schematic and description Design method - software design, draw program flow chart and description, source program list and comments System debugging (include experimental steps and troubleshooting in debugging) Design conclusion Understanding and Learning 1. The purpose of the course design (1) Understand the basic principles and functions of the 8086 (2) Know how to use the microcomputer interface chip 8255. (3) Know how to use digital tubes. 2. Course design tasks Use the 8255 to expand the 8086 interface and display" 7 6 5 4 3 2 1 0 "on the digital tube. 3. The steps of the course design (1) Overall plan, system design The simulation experiment was carried out using the PROTEUS programming environment to complete the connection, program import and debugging. (2)software design The software should be clear, concise, and reasonable in structure, and convenient for design. The digital tube is a common cathode display, consisting of eight digital tubes, using dynamic scanning. Connect the "word line" and "bit line of the digital tube with the PA and PB output interfaces of the 8255. Adjust the delay time and observe the dynamic display effect. (3) system debugging 4. Course design report The content of the course design report Design tasks and requirements System solution (design ideas, used chips and functions), draw system block diagram and description Design method - hardware design, draw circuit schematic and description Design method - software design, draw program flow chart and description, source program list and comments System debugging (include experimental steps and troubleshooting in debugging) Design conclusion Understanding and Learning