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Method for realizing on-line programming of DSP (Digital Signal Processor) system

A programming method and user program technology, applied in the direction of program control device, program loading/starting, etc., can solve the problems of many interface signals, difficult to apply to small-sized equipment, JTAG interface can not meet the requirements of long-distance transmission, etc., to avoid damage, Simple operation, stable programming effect

Inactive Publication Date: 2017-02-22
徐川
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Problems solved by technology

This method of JTAG interface cannot meet the requirements of long-distance transmission, and it is difficult to realize online programming of remote systems; and it cannot work in complex environments such as high and low temperature; at the same time, there are too many interface signals, which is difficult to apply on small-sized devices

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  • Method for realizing on-line programming of DSP (Digital Signal Processor) system
  • Method for realizing on-line programming of DSP (Digital Signal Processor) system
  • Method for realizing on-line programming of DSP (Digital Signal Processor) system

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Embodiment Construction

[0016] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] figure 1 It is a hardware connection diagram of a system using this software, including DSP, FLASH, MAX232EUE, and PC.

[0018] DSP: For the object that needs to be updated and configured, the DSP that needs to be updated must support the self-starting method and serial port communication, and start to execute the Control program segment to update after the self-starting.

[0019] FLASH: There are 3 programs stored in FLASH. The first segment is the DSP boot program, which is used to start the DSP; the second segment is the Cnotrol program, which is used to update the DSP; the third segment is the user program, which is the normal running program of the DSP. Replace this program when the DSP needs to be updated.

[0020] MAX3232: This chip converts the level format of the data, converts the digital signal of DSP into th...

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Abstract

The invention discloses a method for realizing the on-line programming of a DSP (Digital Signal Processor) system, and belongs to the field of data communication and data processing. Particularly, the method comprises program design that a DSP terminal is updated, and design that a PC (Personal Computer) upper computer updates software. When the DSP needs to be updated, a serial port is adopted to carry out data interaction on the DSP and the PC, the data which needs to be updated is received, the correctness of the data is judged, then, the data is stored into FLASH, and the updated grogram is executed to finish final DSP system update. The method has the advantages of being simple in operation, stable in flashing and the like, and can be widely applied to the update configuration of embedded equipment software.

Description

technical field [0001] The invention relates to the field of data communication and data processing, more specifically, the invention is used for online programming of a DSP system and a method for upgrading the system. [0002] technical background [0003] With the rapid development of microelectronics technology, the cost performance of general-purpose digital signal processors continues to increase, and they are more and more widely used in digital signal processing, communication, control and other fields. However, the current common method for DSP programming is to download the FLASH write program and code data to run in the DSP chip through the JTAG interface, so as to realize the programming of FLASH. This method of JTAG interface cannot meet the requirements of long-distance transmission, and it is difficult to realize online programming of remote systems; and it cannot work in complex environments such as high and low temperature; at the same time, there are too man...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 徐川
Owner 徐川
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