Application of RS232 serial port in communication between PC and MCU
Pan Fang · Modern Electronics Technique · 2012
In function relatively-complicated automatic control system,IPC is usually used as a upper computer,MCU as a lower computer,RS232 serial port as a messaging hub of communication between IPC and SCM,and MAX232 is adopted to implement the mutual conversion between TTL logic level and RS232 level.Such a connection can embody the flexible control function of SCM,express the powerful computation and display functions of PC,and is of benefit to signal real-time acquisition,processing,and monitoring on site,so as to ensure the perfect interactivity of man-machine interface.