Self-check method for digital signal processor DSP and mobile terminal

A technology of mobile terminal, digital signal, applied in the field of communication

Active Publication Date: 2017-09-22
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present invention provide a self-inspection method of a digita...

Method used

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  • Self-check method for digital signal processor DSP and mobile terminal
  • Self-check method for digital signal processor DSP and mobile terminal
  • Self-check method for digital signal processor DSP and mobile terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] refer to figure 1 , which shows a flow chart of the steps of an embodiment of a self-test method of a digital signal processor DSP of the present invention, which is applied to a mobile terminal, and the DSP may have a first data channel and a second data channel inside, and the second The data channel has a first cache module and a second cache module;

[0037] In a specific implementation, the mobile terminal is provided with a digital signal processor DSP connected to the sensor sensor of the camera and the image processor ISP. Usually, the ISP is used in the mobile terminal as the sensor output signal processing unit of the camera to match the sensors of different manufacturers.

[0038] In the actual application of the embodiment of the present invention, the inside of the DSP chip adopts a Harvard structure in which the program and data are separated, has a special hardware multiplier, widely uses pipeline operations, and provides special DSP instructions, which ...

Embodiment 2

[0077] refer to image 3 , which shows a flow chart of the steps of an embodiment of a self-test method of a digital signal processor DSP of the present invention, which is applied to a mobile terminal, and the first data channel and the second data channel inside the DSP form a closed loop, so The second data channel has a first cache module, a second cache module, a third cache module and a fourth cache module.

[0078] refer to Figure 4 As shown, the DSP of the embodiment of the present invention relates to two data channels when self-checking, one is the bypass bypass mode (A channel), that is, the first data channel, and the other is the mode of circular cache Buffer output ( Channel B), that is, the second data channel, includes a first buffer module (Buf1), a second buffer module (Buf2), a third buffer module (Buf3) and a fourth buffer module (Buf4) in the B channel.

[0079] In a preferred embodiment of the present invention, the first data channel and the second da...

Embodiment 3

[0108] refer to Figure 5 , shows a structural block diagram of a mobile terminal embodiment of the present invention, the DSP has a first data channel and a second data channel inside, the second data channel has a first cache and a second cache, the mobile The terminal can specifically include the following modules:

[0109] A first image data acquisition module 301, configured to acquire the image data of the first cache module in the second data channel;

[0110] The first image data transmission module 302, configured to control the transmission of the image data of the first cache module to the first data channel;

[0111] The second image data transmission module 303, configured to control the transmission of the image data of the first data channel to the second buffer module of the second data channel;

[0112] The first comparison module 304 is configured to compare the image data of the first cache module with the image data of the second cache module, and generat...

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Abstract

The embodiment of the invention provides a self-check method for a digital signal processor DSP and a mobile terminal. The interior of the DSP is equipped with a first data channel and a second data channel. The second data channel is equipped with a first cache module and a second cache module. The method comprises the steps of obtaining image data of the first cache module in the first data channel; controlling the image data of the first cache module to be transmitted to the first data channel; controlling the image data of the first data channel to be transmitted to the second cache module of the second data channel; and comparing the image data of the first cache module with the image data of the second cache module, and generating a self-check result of the DSP. The embodiment of the invention is used for realizing self-check of the DSP.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a self-checking method of a digital signal processor DSP and a mobile terminal. Background technique [0002] With the rapid development of smart mobile terminals such as mobile phones, the performance of camera photosensitive chips continues to improve, coupled with the portability of mobile terminals, cameras on mobile terminals often replace the role of traditional cameras and even SLR cameras, making mobile terminal shooting applications Wider and wider. [0003] In order to improve the shooting effect, some multi-frame synthesis algorithms are often used when shooting, such as multi-frame night scenes. However, when the user takes multiple shots in rapid succession, the time from shot to shot (from the completion of the last shot to the completion of the next shot) will be very long due to the limitation of the time for capturing multiple frames of images and the time...

Claims

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Application Information

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IPC IPC(8): H04N5/232
CPCH04N23/80H04N23/683
Inventor 殷求明徐璟
Owner VIVO MOBILE COMM CO LTD
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