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Method for remotely updating DSP program

A technology for updating programs and updating processes, applied in the direction of software deployment, etc., can solve the problems of DSP internal FLASH lock, DSP program running and stuck, unable to work normally, etc., so as to reduce the difficulty of operation, reduce the difficulty of maintenance, and improve the maintainability. performance effect

Inactive Publication Date: 2019-12-24
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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AI Technical Summary

Problems solved by technology

Once a little error occurs, it will cause the DSP program to run and freeze, and it will not work normally; if it is serious, it will cause the internal FLASH of the DSP to be locked, and the chip will be scrapped.

Method used

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  • Method for remotely updating DSP program
  • Method for remotely updating DSP program

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Embodiment Construction

[0042] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.

[0043] A method for remotely updating a DSP program of the present invention updates the DSP program through a CAN communication protocol.

[0044] The method for remote updating DSP program of the present invention comprises the following steps:

[0045] Step 1. The ground software sends the object code file of the target device program to the intermediate device, and then sends an instruction to notify the intermediate device to start the program update;

[0046] Step 2. After receiving the target device program object code file and the instruction to start updating the p...

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Abstract

The invention provides a method for remotely updating a DSP program. The method updates the DSP program through CAN communication. According to the method, a complete CAN communication updating program protocol is adopted, it is guaranteed that the program is updated reliably and rapidly, meanwhile, it is guaranteed that abnormal events are processed, and the error correction capacity of the updated program is improved; the maintenance performance of the equipment in the field debugging stage and the final application process can be greatly improved, and the method has huge advantages especially under the conditions that the installation environment of the target equipment is severe and the cost of independently arranging a maintenance interface for the target equipment is high.

Description

technical field [0001] The invention relates to the field of rail transit equipment network control, in particular to a method for remotely updating a DSP program. Background technique [0002] DSP control devices have a huge advantage in computing speed, and are widely used in industrial control, automobiles, rail transit and other fields. However, products designed based on DSP chips often have inherent disadvantages in maintainability. Usually, the DSP program update is completed through the JTAG interface and a special emulator device. This update method is only suitable for the program update in the laboratory development and production debugging stages, and cannot be applied in large quantities to the site of product operation and maintenance. At the same time, it cannot Implement remote updates. [0003] Another way to update the DSP program is through the dedicated RS232 communication interface. This method can realize the remote update of the DSP program in the mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F8/65
CPCG06F8/65
Inventor 杨哲谢小婷张东方王成杰李程宋凯林肖孟英唐军代宏泽林超勇
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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