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TDM interface extension method and device, equipment and readable storage medium

An interface extension and interface technology, applied in the TDM interface extension method and device, readable storage media, and equipment fields, can solve problems such as imperfection, low transmission rate of TDM interface, and few supported time slots, etc., and achieve unlimited functions , High transmission rate and many time slots

Active Publication Date: 2019-12-20
GENEW TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are many ARM chips with this computing capability on the market, but there are few ARM processor chips that can support the TDM interface. The ARM chips that can support the TDM interface do not provide perfect TDM interface functions, and support few time slots. The transmission rate of the TDM interface is low

Method used

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  • TDM interface extension method and device, equipment and readable storage medium
  • TDM interface extension method and device, equipment and readable storage medium
  • TDM interface extension method and device, equipment and readable storage medium

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Embodiment Construction

[0049] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0050] The processor described in the embodiment of the present invention may be Allwinner ARM processor A1000; Allwinner H8 processor, Allwinner's ARM chip can be supported by any processor with an open tdm interface. The following description will be made by taking the Allwinner ARM processor A1000 as an example.

[0051] The inventor found th...

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Abstract

The invention relates to a TDM interface extension method and device, equipment and a readable storage medium. The method comprises the steps that a processor is externally connected with an FPGA chip; TDM interface clock signals and synchronizing signals are provided for the processor through the FPGA chip, and a time slot switching function is realized through the FPGA chip; wherein the controlprocessor is initially configured to receive a clock signal and a synchronization signal of the FPGA from a mode; the control processor writes the data into a sending buffer area and sends the data toan opposite end in sequence through a TDM interface; the data of the opposite end is stored into a receiving buffer area in sequence through a TDM interface; the frequency of a clock signal and a frame synchronization signal of a TDM interface of the processor is improved to N times of the original frequency through the FPGA chip; and the functions are not limited, more time slots are supported,and the transmission rate is high.

Description

technical field [0001] The present application relates to the technical field of processors, in particular to a method for extending a TDM interface, a device, a device, and a readable storage medium. Background technique [0002] Existing VoIP (Voice Transmission over IP) systems usually use a CPU to process call control messages and a dedicated voice DSP (Digital Signal Processor) to process voice codecs, and the dedicated voice DSP provides a TDM (Time Division Multiplexing Mode) interface To access the data exchanged by the time slot. With the improvement of CPU processing capacity, a 1.8Ghz 4-core ARM processor can handle hundreds of voice codec algorithms, and this processing capacity can meet most VoIP system applications. [0003] In order to reduce the cost of the equipment, the processing program of the codec algorithm can be run on the ARM processor to replace the professional DSP chip. There are many ARM chips with this computing capability on the market, but t...

Claims

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Application Information

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IPC IPC(8): H04J3/02H04J3/06G05B19/05
CPCG05B19/05H04J3/02H04J3/0602H04J3/0685
Inventor 孟庆晓吴闽华郭军勇
Owner GENEW TECH
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