Radio-frequency switching unit control method based on ARM (advanced reduced instruction set computer machine) and DSP (digital signal processor)

Abstract

A radio-frequency switching unit control method based on an ARM (advanced reduced instruction set computer machine) and a DSP (digital signal processor) mainly includes a control procedure of a lower computer control unit of a radio-frequency automatic control system and a control procedure of an upper computer control unit of the radio-frequency automatic control system. The control procedure of the lower computer control unit mainly includes the steps: initializing a power source and a central processor, setting a module address selection circuit module, using the central processor to analyze data transmitted by an upper computer, and the like. The control procedure of the upper computer control unit mainly includes the steps: initializing a power source, a GPIB (general purpose interface bus), initializing the central processor, using the central processor for read-write operations according to the GPIB bus, and the like. The radio-frequency switching unit control method is implemented by means of mutual data interaction between an upper computer module and a lower computer module. The radio-frequency switching unit control method has the advantages of simplicity, feasibility and flexibility in operation.

Description

technical field [0001] The invention belongs to the field of electronic technology / communication, and relates to a control method of an integrated control system of a radio frequency switching unit based on ARM and DSP. Background technique [0002] Conventional terminal radio frequency automatic test system refers to the automatic test system that adopts computer control to automatically complete call establishment, link switching, signal measurement, data calculation and processing, and output test results. It is mainly used in wireless terminal radio frequency index test and integrated test system construction , including TD-SCDMA, GSM, WLAN, WCDMA, CDMA and Bluetooth wireless terminal radio frequency index test and automatic test system construction; [0003] The existing radio frequency switching system is mainly produced by a few foreign manufacturers, the production cycle is long, and the degree of limitation is large, the price is expensive, and the switching unit ca...

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Problems solved by technology

[0003] The existing radio frequency switching system is mainly produced by a few foreign manufacturers, the production cycle is long, and the degree of limitation is large, the price is expensive, and the switching unit cannot be controlled manually, so it is difficult to flexibly apply to different test environments. At present, the terminal radio frequency The test mainly uses advanced test instruments, but in the process of testing the radio frequency terminal equipment, for different test items, it is necessary to carry the corresponding radio frequency link to meet the test requirements, and to complete a radio frequency test process requires multiple radio frequency link carrying;

[0004] If manual testing is used, it will not only increase the workload of the test, but also increase the error rate during the test process due to frequent manual replacement of links, poor link stability, poor repeatability of test addition, and unnecessary interference may be introduced to increase test errors , at the same time, for the current terminal RF automatic test system, the RF interface box used for RF testing is a closed unit, without a human-computer interaction interface, the link status cannot be observed, and the switching cannot be performed when the test software is not enabled. The unit performs link switching control, so it cannot meet flexible test requirements

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