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Chip, chip debugging method and communication method for chip and external devices

A technology of external devices and chips, applied in the electronic field, can solve problems such as the powerlessness of the bottom layer and drivers, and achieve the effect of improving debugging efficiency and saving costs

Active Publication Date: 2015-07-01
ACTIONS ZHUHAI TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ADB is only suitable for debugging applications on the Android platform, and is limited to upper-level applications, but it is powerless to debug the bottom layer and drivers

Method used

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  • Chip, chip debugging method and communication method for chip and external devices
  • Chip, chip debugging method and communication method for chip and external devices
  • Chip, chip debugging method and communication method for chip and external devices

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Embodiment Construction

[0025] In order to realize the plug-and-play of debugging equipment, improve the efficiency of chip system debugging, and reduce equipment debugging and maintenance costs, the invention provides a chip, a debugging method for the chip, and a method for communicating between the chip and external devices.

[0026] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] as attached figure 1 As shown, the embodiment of the present invention provides a chip, the chip includes a processor 10, a debug port 11, a data transmission port 12 and a data transmission pin 13, in addition, the chip also includes: a time division multiplexer 14, The time division multiplexer 14 is connected to the data transmission pin 13 , and is used to transmit the signal via the debug port 11 and / or the data transmission port 12 through the data transmission pin 13 according to the control of the processor 10 .

[0028] Whe...

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PUM

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Abstract

The invention discloses a chip which is used for achieving a plug-and-play function of debugging equipment, improving the debugging efficiency of a chip system, and reducing debugging and maintenance cost of the equipment. The chip comprises a processor, a debugging port, a data transmission port and a data transmission pin, and further comprises a time division multiplexer which is connected with the data transmission pin and used for transmitting signals having passed by the debugging port and / or the data transmission port through the data transmission pin according to the control of the processor. The invention further discloses a debugging method of the chip, and a communication method for the chip and external devices.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a chip, a chip debugging method, and a method for communicating between the chip and external equipment. Background technique [0002] JTAG (Joint Test Action Group) is a boundary-scan technology for chip internal testing, which can facilitate access to the debugging module of the chip system (SOC), and is used to realize single-step debugging, tracking debugging, etc. of the program, and most SOC chips are equipped with JTAG ports. Universal Asynchronous Receiver / Transmitter (UART) is also a commonly used method for software development and debugging. It is used to output some useful debugging information during the debugging process to help developers understand the running status of the program. It is widely used. [0003] However, JTAG and UART debugging interfaces are generally not directly used in products, and these debugging interfaces are not drawn out in the finish...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/20G06F11/26
Inventor 严家亮雷长发梅利
Owner ACTIONS ZHUHAI TECH CO
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