Serial interface communication testing system

Abstract

The invention provides a serial interface communication testing system comprising a control module, a level conversion module, a communication module, a first switch group and a second switch group. The level conversion module is electrically connected with the control module; the communication module is electrically connected with the control module; the first switch group is electrically connected with the control module, the communication module and the level conversion module; the second switch group is electrically connected with the level conversion module and the first switch group; the communication module comprises a first processing unit and a second processing unit; the first processing unit and the second processing unit transmit data with each other and are connected with thefirst switch group; the first switch group and the second switch group comprise a plurality of switches; the level conversion module is used for signal level conversion between the control module andthe communication module; the control module forms different testing loops by selectively switching on or switching off different switches in the first switch group and the second switch group; and the testing loops are respectively used for testing the communication status of the first processing unit and the second processing unit and the communication status of different communication loops between the first processing unit and the second processing unit.

Description

technical field [0001] The invention relates to a serial interface communication testing system, in particular to a serial interface communication testing system suitable for testing a processor of a wireless communication device. Background technique [0002] In order to make wireless communication devices such as mobile phones meet the use requirements in terms of communication quality, data transmission / reception speed and other indicators, the testing of such wireless communication devices is particularly important. Generally speaking, in many existing intelligent wireless communication devices, most wireless communication devices use embedded application processors to perform functions such as high-speed communication, such as Marvell's PXA310, PXA320 series and Samsung's S3C2410 , S3C2440 and other application processors. In order to ensure that the actions of transmitting information through the serial interface between the application processor and the peripherals o...

AI Technical Summary

Problems solved by technology

In this way, it is necessary to frequently switch the COM connection line between the sending end of the UART interface, the receiving end and the COM port, which is not only inconvenient to operate during the test, but also easily damages the COM port.

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