Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Data transmission method and device

A data transmission method and data transmission technology, applied in the direction of multi-programming devices, electrical digital data processing, special data processing applications, etc., can solve problems such as time delay, waste of computing resources, and inability to perform computing tasks, so as to avoid waste , shorten the interval time, eliminate the effect of waiting time

Pending Publication Date: 2021-06-29
ALIBABA GRP HLDG LTD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In this example, since the processor sends the data information required in step d to the DMA device at time t3, the DMA device is in an idle state during the time period t2-t3, and the time for transmitting the data in step d is delayed, causing the processor During the period from t4 to t5, we can only wait for the completion of data transmission, but cannot perform computing tasks, wasting computing resources

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data transmission method and device
  • Data transmission method and device
  • Data transmission method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] An exemplary embodiment of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be restricted herein. Instead, it is provided to provide more thoroughly understood the present disclosure, and can communicate the scope of the disclosure to those skilled in the art.

[0038] For problems present in the prior art, the present invention provides a data transmission method and apparatus to increase data transmission efficiency between the internal memory and the external memory of the on-chip system, and minimize processor calculation resource waste.

[0039] image 3 A schematic diagram of a chip system 100 in accordance with one embodiment of the present invention is shown. The system 100 can be included in the smart device to implement the co...

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

No PUM Login to View More

Abstract

The invention discloses a data transmission method, which is suitable for data transmission between an internal memory of a system-on-chip and an external memory coupled with the system-on-chip; the method is executed by a processor of the system-on-chip, and the method comprises the following steps: adding execution information of at least one data transmission task to be executed to a task queue; sending execution information of a data transmission task in the task queue to the direct access device, so that the direct access device executes the data transmission task; and receiving an interrupt request sent by the direct access device, the interrupt request being suitable for indicating that execution of the data transmission task is completed, so that the processor sends execution information of the next data transmission task in the task queue to the direct access device. The invention also discloses a corresponding data transmission device, the system on chip and the intelligent equipment.

Description

Technical field [0001] The present invention relates to the field of embedded techniques, and more particularly to a data transmission method and apparatus between an internal memory and an external memory of a system. Background technique [0002] With the development of network communication technology, today's society has entered the Internet of Things. Systemon Chip, SOC is a system integrated with modules such as processors, memory, external devices, I / O interfaces, embedded in the Internet of-connected devices for specific functions. In order to meet low-power, low-cost design requirements, the internal storage capacity of on-chip systems is usually smaller, and a large amount of data is stored on an external memory coupled to the on-chip system. [0003] The internal memory is quickly read and written, but the capacity is small; the external memory capacity is large, but the read and write speed is slow. In some application scenarios, data transmission between internal m...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/28G06F13/40G06F9/54
CPCG06F13/28G06F13/4068G06F9/546G06F2209/548G06F13/24G06F9/4812G06F9/4881G06F16/9024
Inventor 魏世恒
Owner ALIBABA GRP HLDG LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products