A file transmission method, device and related equipment

Abstract

The application provides a file transmission method and device and related equipment, and belongs to the field of embedded systems. The method comprises the following steps: obtaining firmware upgrade data, and dividing the firmware upgrade data into a plurality of data packets; transmitting a first data packet corresponding to a first sending window to an embedded device through the first sending window, receiving a window control parameter generated by the embedded device in response to the first data packet, adjusting the first sending window according to the window control parameter to obtain a target sending window, and transmitting a target data packet corresponding to the target sending window; receiving a data receiving parameter generated by the embedded device in response to the target data packet, determining a target offset corresponding to a missing data packet in the plurality of data packets according to the data receiving parameter, and retransmitting the missing data packet to the embedded device; and issuing a firmware upgrade instruction when the embedded device has completed the reception of the plurality of data packets. In this way, the data transmission efficiency and transmission reliability in the firmware upgrade process of an industrial embedded device can be improved.

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