A method for generating binary, serial data streams, corresponding to protocols, the exact time require transmission pauses, by means of a uart on computers with a multitasking - operating system

摘要

A method for generating binary, serial data streams, corresponding to protocols, the exact time require transmission pauses, by means of a uart on computers with a multitasking - operating system,whereina) of the uart to a data word length is adjusted in such a way that it exactly with the transmission of a data word, a data packet of the motorola - format mc simulates 145026,b) of the uart during the required transmission pauses is continuously signals in the form of dummy data not affecting is generated, which correspond to the total length of the desired transmission pause,c) the signals are suppressed by means of a circuit in such a way that the suppressed signals do not reach to the receiver,d) according to the complete transmission of the respective dummy data not affecting a transmitter - empty - interrupt is triggered,e) a control program in response to the transmitter - empty - interrupt the logically following wanted - or dummy data not affecting transmits and thus a continuous and temporally exact data stream is ensured,f) to suppress the circuit in such a way that the uart in the data line is connected downstream of the switching stage the signal guidance during the transmission pauses suppressed, by..