Fast frequency offset calibration method and device for radio frequency module, equipment and medium

A technology of radio frequency module and calibration method, which is applied in the field of communication, can solve the problems of high purchase cost, large space occupied, and not in line with actual production efficiency, etc., and achieve the effect of fast frequency offset test and calibration, and convenient operation

Inactive Publication Date: 2019-11-01
HANGZHOU BROADLINK ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] 1. If the number of RF modules to be tested is large, the number of instruments required for testing is correspondingly large, but each instrument is expensive to purchase and occupies a large space. The method of testing one by one is obviously not realistic Production efficiency; therefore, the above two schemes are only applicable to the research and development stage, or the random testing process, and are not suitable for mass testing
[...

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  • Fast frequency offset calibration method and device for radio frequency module, equipment and medium
  • Fast frequency offset calibration method and device for radio frequency module, equipment and medium
  • Fast frequency offset calibration method and device for radio frequency module, equipment and medium

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Experimental program
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Embodiment 1

[0035] This embodiment provides a fast frequency offset calibration method for the radio frequency module, aiming to simplify the connection mode of the radio frequency module test without connecting the test instrument, so as to realize the rapid frequency offset test and automatic frequency offset calibration of the radio frequency module , is suitable for batch testing, can improve batch testing efficiency, and has the advantages of convenient operation and low cost.

[0036] According to the above principles, the fast frequency offset calibration method for the RF module is introduced, as shown in figure 1 As shown, the fast frequency offset calibration method for the radio frequency module specifically includes the following steps:

[0037] Receive frequency offset calibration instructions;

[0038] Control the RF module to output the frequency of the external crystal oscillator according to the frequency offset calibration command;

[0039] Collect the frequency of the...

Embodiment 2

[0054] Embodiment 2 discloses a device corresponding to the fast frequency offset calibration method for radio frequency modules corresponding to Embodiment 1, please refer to figure 2 shown, including:

[0055] An instruction acquiring module 210, configured to acquire a frequency offset calibration instruction;

[0056] The control module 220 is configured to control the radio frequency module to output the frequency of the external crystal oscillator according to the frequency offset calibration instruction;

[0057] The sampling calibration module 230 is configured to sample the frequency of the external crystal oscillator to calculate a real-time frequency offset, and modify the register value of the external crystal oscillator based on the real-time frequency offset.

Embodiment 3

[0059] image 3 A schematic structural diagram of an electronic device provided by Embodiment 3 of the present invention, such as image 3 As shown, the electronic device includes a processor 310, a memory 320, an input device 330, and an output device 340; the number of processors 310 in a computer device may be one or more, image 3 Take a processor 310 as an example; the processor 310, memory 320, input device 330 and output device 340 in the electronic device can be connected by bus or other methods, image 3 Take connection via bus as an example.

[0060] The memory 320, as a computer-readable storage medium, can be used to store software programs, computer-executable programs and modules, such as the program instructions / modules corresponding to the fast frequency offset calibration method for the radio frequency module in the embodiment of the present invention (for example, for The instruction acquisition module 210, the control module 220, and the sampling calibrati...

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Abstract

The invention discloses a rapid frequency offset calibration method for a radio frequency module, relates to the technical field of communication, aims to realize rapid frequency offset calibration ofa wireless radio frequency module and ensure the consistency of frequency offset calibration, is suitable for batch test, and comprises the following steps: receiving a frequency offset calibration instruction; controlling a radio frequency module to output an external crystal oscillator frequency according to the frequency offset calibration instruction; sampling the frequency of the external crystal oscillator to calculate real-time frequency offset, and modifying a register value of the external crystal oscillator based on the real-time frequency offset to complete frequency offset calibration. The invention further discloses a rapid frequency offset calibration device for the radio frequency module, electronic equipment and a computer storage medium.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device, equipment and medium for fast frequency offset calibration of a radio frequency module. Background technique [0002] As we all know, the wireless RF modules on the market all have different channel numbers, for example, the mainstream 2.4GHz wifi module has 14 channels, and the Bluetooth module has 40 / 80 channels. Each channel has a center frequency point, and there is a certain bandwidth between adjacent channels. [0003] Therefore, in the process of R&D and marketization of wireless RF modules, an important parameter index cannot be avoided, which is the offset of the RF center frequency point of the module, that is, frequency offset. In order to ensure normal RF communication, the industry standard The requirement is that the frequency offset of the corresponding frequency point is ≤±20ppm. If the frequency offset of the center frequency po...

Claims

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Application Information

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IPC IPC(8): H04B17/11H04B17/21
CPCH04B17/11H04B17/21
Inventor 王超军姚博刘宗孺李志为
Owner HANGZHOU BROADLINK ELECTRONICS TECH
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