i need to clear the data on serial port when i have read the data from it before i read the data again? i m using c/c++ on windows xp
how can i do so ?
thanx in advance.
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i need to clear the data on serial port when i have read the data from it before i read the data again? i m using c/c++ on windows xp
how can i do so ?
thanx in advance.
The C++ standard has interfaces for writing to files, to the screen and to a log. It also has interfaces for reading from files and reading from “standard input.” There is no standard way to interact with serial ports, network connections, etc.
Luckily your operating system or platform will have an interface for this. But (1) what you have to do to read from a serial connection, and (2) what you need to do between consecutive reads, and (3) how to do it are all platform dependent.
Looking at some Microsoft Documentation, you don’t have to “clear the port” at all. But when a flag is set to signal something — for instance that an error occurred — then you need to reset the flag before continuing. Of course you reset the flag after handling whatever the flag was meant to signal.