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Method for using information of synchronous serial interface output and asynchronous serial port debugging on DSP

An asynchronous serial port and synchronous serial port technology, applied in the field of digital signal processor applications, can solve problems such as normal output, limited host interface, poor effectiveness, etc., to achieve stable and reliable debugging output channels, easy to use, and good timeliness Effect

Inactive Publication Date: 2008-02-27
ZTE CORP
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Problems solved by technology

These two methods have obvious disadvantages: the former is limited by the host interface, and if the channel is abnormal, the debugging information cannot be output normally; the latter has poor effectiveness, and the log needs to be read out with an emulator afterwards

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  • Method for using information of synchronous serial interface output and asynchronous serial port debugging on DSP
  • Method for using information of synchronous serial interface output and asynchronous serial port debugging on DSP
  • Method for using information of synchronous serial interface output and asynchronous serial port debugging on DSP

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Embodiment Construction

[0024] In order to solve the disadvantages of the traditional technical solution, the present invention further elaborates a method of using the synchronous serial port McBsp to output the asynchronous serial port UART debugging information of the present invention through the following specific embodiments, and the specific implementation is described in detail below, But not as a limitation to the present invention.

[0025] As shown in Figure 1, it is a schematic diagram of the design of the Host-Slave mode in the DSP system. 101 is a HOST chip with a network port 103. In the early stage of development, DSP 102 outputs debugging information through Jtag 104. After commercialization, HOST 101 is responsible for outputting debugging information through the host interface.

[0026] As shown in Figure 2, it is a schematic diagram of the design of the Standalone mode in the DSP system. In the early stage of development, the DSP 201 outputs debugging information through the Jtag...

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Abstract

This invention provides a kind of method of using the timing serial port to output the asynchronous serial port debug information on the DSP and constructs the asynchronous serial port data frame by using the structure corresponding relationship of the synchronous serial port and the asynchronous serial port data frame and the corresponding relationship of bit clock of the synchronous serial port and the baud rate of the asynchronous serial port; at the same time synchrony the frame of synchronous serial port on the DSP and logical operate the base pin which is used to deliver the data and extend the output values making it met the time sequence of the asynchronous serial port and output the asynchronous serial port debug information. Comparing with the present technology it overcomes the defect that there is no debug information output channel during the reality process for the DSP; it has the well reality and it can capture the abnormal station for the DSP and offer the trace of the location problem; the UART baud rate can be modified and it is convenience to the user.

Description

technical field [0001] The present invention relates to a method for using a synchronous serial port to output asynchronous serial port debugging information on a DSP in the application field of a digital signal processor, and more particularly relates to a method for using a synchronous serial port McBsp (Multichannel Buffered Serial Port) on a DSP produced by TI Company. Interface) to build an asynchronous serial UART (Universal Asynchronous Receiver / Transmitter) and use it to output debugging information. Background technique [0002] In the development process of DSP (Digital Singnal Processor) chip, the output of its debugging information has always been a focus of attention, especially when reproducing and locating problems. In the early stage of DSP development, the emulator can be used to output debugging information through the jtag port. In the productization stage, the debugging information of the Host-Slave-master-slave mode DSP can be output by the host through ...

Claims

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Application Information

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IPC IPC(8): G06F11/00G06F11/10G06F11/36
Inventor 苗军丁元欣丁鹏柴作朋祁晓璐李华
Owner ZTE CORP
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