Satellite-borne software setting method for downloading flow control data

The invention provides a satellite-borne software setting method for downloading flow control data, which comprises the following steps of: S1, setting a program for reading a data thread, reading load data required to be downloaded according to the size of a block, and communicating with the data downloading thread through semaphore; s2, setting a program of a downloading data thread, communicating with a reading data thread through semaphore, and starting a downloading process after the semaphore is downloaded; s3, setting a high-precision timer, setting the timing precision to be microsecond, setting the downloading control period to be T microsecond, wherein T is larger than 1, and carrying out data flow control within one period through the time of the timer; s4, binding the downloading data thread with one processor core, and binding other threads with the other processor core; and S5, setting a feedback mechanism, and dynamically increasing or decreasing a downloading rate according to an instruction a