Data transmission method, device, terminal and storage medium

Abstract

Disclosed are a data transmission method and apparatus, a terminal and a storage medium. The method comprises: after monitoring a change in a port value of a monitor port in a control chip, a main device module acquires a current USB descriptor corresponding to the control chip; the main device module determining, according to the current USB descriptor, a chip communication port that is in communication with the control chip, and sending a firmware upgrade package to the control chip based on the chip communication port; and the control chip forwarding the firmware upgrade package to a communication port of a touch device corresponding to the chip communication port, such that the touch device undergoes a firmware upgrade based on the firmware upgrade package.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular, to a data transmission method, device, terminal, and storage medium. Background technique [0002] At present, many smart terminals are equipped with touch devices with touch functions, thereby realizing human-computer interaction simply, conveniently and naturally, and further expanding the application fields of smart terminals with touch functions. Figure 1A It is a schematic diagram of the structural connection between the touch device and other components on the smart terminal in the prior art. At present, the touch device and other components of the smart terminal have the following functions: Figure 1A The connection structure shown. [0003] see Figure 1A , the control chip in the intelligent terminal is directly connected to the touch device through the first USB (Universal Serial Bus, universal serial bus) interface 11, and combines the USB switcher...

AI Technical Summary

Problems solved by technology

In the prior art, when upgrading the firmware of the touch device, the firmware upgrade package stored in the main device module needs to be sent to the touch device, but because the data interaction of each device in the above connection structure uses different protocols, the main device module cannot accurately Transfer firmware upgrade package to touch device

In response to the above problems, the technicians proposed the following improvement methods: 1) One is to use software development to ensure the accuracy of data transmission, but this method requires detailed communication protocol A followed between the touch device and the control chip Analyzing and writing a lot of codes to implement logic to transmit data following different communication protocols, so as to realize the secondary development of touch devices and then upgrade the firmware of touch devices, which increases the difficulty of development and maintenance for developers; 2) Figure 1B It is a structural connection schematic diagram of the improved firmware upgrade of the touch device in the prior art, using Figure 1B In the method of modifying the hardware framework, the transmission protocol during firmware upgrade is unified, but this method needs to add an additional second USB switch 14 between the touch device and the control chip, and connect the touch device to the PC module storing the touch device firmware upgrade package. , Android module or external device modules are directly connected, which increases the cost of hardware usage

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