Debugging system with analog audio output device

A technology for output devices and debugging systems, applied in the detection of faulty computer hardware, etc., can solve problems such as wasting labor costs

Active Publication Date: 2012-01-18
CHINA HUALU GRP
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  • Abstract
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  • Application Information

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Problems solved by technology

At this time, the maintenance personnel still need to disassemble the case to make the physical connection of the UART, which

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  • Debugging system with analog audio output device
  • Debugging system with analog audio output device
  • Debugging system with analog audio output device

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Embodiment Construction

[0018] Because this system mainly needs to be implemented by analog switches, general analog switch devices need to work at a frequency below 40MHZ so as not to affect the data quality. Since the frequency of analog audio data is low, it is selected as a multiplexing interface.

[0019] like Figure 1 to Figure 4 The shown debugging system with analog audio output equipment includes: for connecting the equipment analog audio output port (the equipment analog audio output is AUDIO DAC stereo audio digital-to-analog converter) with external audio receiving device or connecting the host computer with The terminal 30 connected to the UART port of the equipment CPU (UART is asynchronous receiving / sending); the state switching module 20 for controlling the terminal 30 to be connected to the analog audio output port of the equipment or the terminal 30 to be connected to the UART port of the equipment CPU; The control module 10 that switches between the control state switching module ...

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Abstract

The invention discloses a debugging system with an analog audio output device, and the system is characterized by comprising a terminal, a state switching module and a control module, wherein the terminal is used for connecting the analog audio output port of the device to a peripheral audio receiving apparatus or connecting an upper computer to the UART (Universal Asynchronous Receiver/Transmitter) port of a CPU (Central Processing Unit) of the device; the state switching module is used for controlling the terminal to be connected with the analog audio output port of the device or controlling the terminal to be connected with the UART port of the CPU of the device; and the control module is used for controlling the state switching module to switch, so as to connect the terminal with the analog audio output port of the device or connect the terminal with the UART port of the CPU of the device. For the system, a process of opening a device shell to perform wiring or modify internal circuits is not needed, and circuit debugging for function reuse can be executed through state switching just by the existing external interface, so that the troubles in software debugging and detaching the device shell for debugging the device by an after-sale serviceman are solved, and the work load is greatly reduced.

Description

technical field [0001] The invention relates to a debugging system with an analog audio output device. Background technique [0002] The interfaces provided by the existing debugging circuit are all built-in, or the internal circuit needs to be modified to realize external connection debugging, which is acceptable in the research and development stage, but it is very unfavorable for equipment maintenance. [0003] In the research and development stage of many products with embedded systems, it is necessary to use the UART communication interface to communicate with the PC through a physical connection, so that the research and development personnel can understand the operating status of the system and issue instructions to the embedded system. Before the circuit board is installed in the case, this kind of physical connection is relatively convenient, and it only needs to use a dedicated connection line through the reserved pin headers on the circuit board. However, once th...

Claims

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Application Information

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IPC IPC(8): G06F11/22
Inventor 周鑫亮王敏孙宝珠蔡向阳孙睿
Owner CHINA HUALU GRP
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