Embedded-type equipment and serial port transceiving system

Abstract

The invention provides embedded-type equipment and a serial port transceiving system. The embedded-type equipment comprises a universal interface, a universal asynchronous receiver / transmitter (UART) interface arranged in the embedded-type equipment, a processor and a transmitting module, wherein the processor is connected with a transmitting port and a receiving port of the UART interface; before the transmitting port transmits to-be-transmitted data, the processor detects whether the receiving port is in a receiving state or not, and controls the transmitting port to transmit the to-be-transmitted data if the receiving port is not in the receiving state; one end of the transmitting module is connected with the transmitting port and the receiving port, and the other end of the transmitting module is connected with a signal pin of the universal interface; the transmitting module is used for receiving the to-be-transmitted data, setting the receiving port to be in high level, and transmitting the to-be-transmitted data to the signal pin of the universal interface. Under a condition that an equipment shell is not provided with the UART interface, the embedded-type equipment and serial port transceiving system is capable of realizing a data receiving function and a data transmitting function of the UART interface without dismounting a shell, lowering the difficulty and cost of test and maintenance, and avoiding shell damage, is beneficial to reduction in equipment dimension, and is capable of improving the equipment appearance.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to an embedded device and a serial port transceiver system. Background technique [0002] UART (Universal Asynchronous Receiver / Transmitter, Universal Asynchronous Receiver / Transmitter) is a universal serial data bus. UART connects two devices through a pair of signal lines. The two devices communicate at an agreed baud rate to achieve full data transfer. Duplex transmit and receive. Due to the simple implementation of UART, in the design of embedded hardware products, the UART interface is usually used as the debugging interface of embedded hardware products. Type hardware products for testing and other operations. [0003] At present, the volume of embedded hardware products is getting smaller and smaller, and the requirements for appearance are getting higher and higher, so that the UART interface cannot be reserved on the product shell. In this way, it is very in...

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Problems solved by technology

[0004] In view of the above problems, the purpose of the embodiment of the present invention is to provide an embedded device and a serial port transceiver system to solve the difficulty and high cost of testing and maintenance of existing embedded hardware products, and the problem of easy damage to the shell of embedded hardware products question

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