Bandwidth self-adaptive data transmission method for CNN (Convolutional Neural Network) accelerated calculation

The invention relates to a CNN accelerated calculation-oriented bandwidth adaptive data transmission method. The method comprises the following steps of: writing basic information of an input feature map into an instruction configuration module from an external storage device through a master control; the address automatic generation module generates address information transmitted each time according to the configuration information and transmits the address information to the AX I driving module; the AXI driving module initiates a reading operation of a data block according to the configuration information and the information of the address automatic generation module, and writes the data into the automatic interpolation module; the AXI data sensing module senses the duty ratio of a channel signal and the change rate of the duty ratio, and feeds back the information to the AXI driving module; the preset value is inserted into the preset position of the data stream through automatic interpolation, and the in