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Method, system and device for loading programs to external memory of digital signal processor

A digital signal and program loading technology, which is applied in the direction of program control devices, program loading/starting, etc., can solve the problems of inaccessibility of digital signal processor external storage space, insufficient utilization of digital signal processor external storage space, waste of storage space, etc. problem, to achieve the effect of improving flexibility, improving utilization rate and reducing production cost

Active Publication Date: 2009-09-30
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology

[0005] Before the digital signal processor program is loaded and running, only the memory space of the digital signal processor can be accessed through the bus interface of the microprocessor, but the external memory space of the digital signal processor cannot be accessed, resulting in the inability of the external memory space of the digital signal processor Fully utilized, resulting in a waste of storage space

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  • Method, system and device for loading programs to external memory of digital signal processor
  • Method, system and device for loading programs to external memory of digital signal processor
  • Method, system and device for loading programs to external memory of digital signal processor

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Embodiment Construction

[0040] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0041] Such as figure 1 Shown, be the method flow of loading program to DSP external memory in the embodiment of the present invention Figure 1 , it can be seen from the figure that the microprocessor can operate the external memory of the digital signal processor before or during the loading of the digital signal processor program through the loading mechanism of the first loading, the second startup and the three-way handshake. The specific steps as follows:

[0042] Step 101, the microprocessor loads the first program to the memory of the digital signal processor, and triggers the digital signal processor to start after loading;

[0043] Step 102, after the digital signal processor is started for the first time, th...

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Abstract

The invention provides a method, a system and a device for loading programs to an external memory of a digital signal processor, belonging to the technical field of electric digital data processing. The method includes the steps that a microprocessor loads a first program to the memory of the digital signal processor and triggers the digital signal processor after being loaded to perform first starting up; after the first starting up, the digital signal processor initializes the external memory of the digital signal processor and sends a first handshaking signal to the microprocessor after the first starting up succeeds; and after receiving the first handshaking signal, the microprocessor loads a second program to the external memory of the digital signal processor and sends a second handshaking signal to the digital signal processor after being loaded.

Description

technical field [0001] The invention relates to the technical field of electrical digital data processing, in particular to a method, system and device for loading a program into an external memory of a digital signal processor. Background technique [0002] In recent years, with the continuous development of communication technology, especially the wide application of 3G (3rd Generation, third-generation digital communication) technology and IP (Internet Protocol, International Internet Protocol) technology, the corresponding DSP (Digital Signal Processor, The complexity of the digital signal processor) system is also constantly increasing, and the limited memory space of the digital signal processor can no longer meet the demand, and it is often necessary to load a part of the program into the external memory space. [0003] Most DSP chips now provide a variety of data bus interfaces, such as HPI (Host Interface), DSI (Direct Slave Interface, slave device management interf...

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Application Information

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IPC IPC(8): G06F9/445
Inventor 罗华刘大伟李坤
Owner DATANG MOBILE COMM EQUIP CO LTD
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