Method and system for the first operating system to operate the dsp of the second operating system
An operating system and a second technology, applied in the direction of instruments, electrical digital data processing, computers, etc., can solve problems such as the inability to meet the needs and limit the application of DVR products
Active Publication Date: 2017-02-08
HANGZHOU HIKVISION DIGITAL TECH
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The video and audio board based on the Centaurus platform is a part of the PC. If the PC runs the Windows operating system, the solution under the Linux system cannot meet the demand, thereby limiting the application of DVR products under the Windows operating system.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0044] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0045] like figure 1 As shown, the method for the first operating system of the present invention to operate the DSP running on the second operating system mainly includes the following steps:
[0046] The first operating system writes the command into the shared buffer and sends an interrupt notification to the ARM processor;
[0047] After receiving the interrupt notification, the ARM processor reads the command in the shared buffer, and judges that a plurality of DSP subsystems that realize the function of the command and run under the second operating system The target DSP sub-core in the DSP of the core;
[0048] The ARM processor forwards the command to the target DSP sub-core, so that the target DSP sub-core completes the function.
[0049]...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method and a system of a first operating system operating DSP (digital signal processing) of a second operating system. The method comprises the following steps of enabling the first operating system to write a command into a shared-memory buffer, and sending an interruption notice to an ARM processor; after the ARM processor receives the interruption notice, reading the command in the shared-memory buffer, and judging a target DSP sub-core of the DSP which can realize the function of the command, runs under the second operating system and is provided with a plurality of DSP sub-cores; enabling the ARM processor to forward the command into the target DSP sub-core, so as to enable the target DSP sub-core to complete the function. By additionally arranging the ARM processor, the command generated by SDK (software development kit) of the first operating system is forwarded to the DSP under the second operating system through the ARM processor, and the DSP of the second operating system can be controlled by the first operating system, so a video and audio board card of a Centaurus platform can be applied to a Windows operating system.
Description
technical field [0001] The present invention relates to the field of video communication operation control, in particular to a method and system for operating a DSP (Digital Signal Processing, digital signal processing unit) of a second operating system by a first operating system. Background technique [0002] Netra is a video system on chip (SoC, System on Chip) launched by Texas Instruments (TI), which integrates all capture, compression, display and control functions of high-definition multi-channel systems on a single chip, and integrates ARM Cortex- A8 processor, Ti C674x floating-point DSP, several second-generation programmable high-definition video image coprocessors (HDVICP V2.0), and a high-definition video processing subsystem (HDVPSS, or VPS). [0003] Centaurus is Texas Instruments' Netra-based platform, which integrates Netra's features and pays more attention to low-power design. In the Centaurus platform, DSP specifically refers to VID (HDVICP, programmable...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F15/163
Inventor 张海龙王微周春晖
Owner HANGZHOU HIKVISION DIGITAL TECH