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TMS320F28335PFGA based program rewriting system

A technology of TMS320F28335PFGA and RS-232, which is applied in the field of program programming system based on TMS320F28335PFGA, achieves the effects of good reliability, high security and cost reduction

Inactive Publication Date: 2016-08-31
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: how to design a system in which a DSP system is installed in a complex and closed environment, and when the program needs to be updated or upgraded, the DSP software can be programmed online without disassembling the case

Method used

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  • TMS320F28335PFGA based program rewriting system
  • TMS320F28335PFGA based program rewriting system

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Embodiment Construction

[0022] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] In order to solve the above technical problems, the present invention provides a program burning system based on TMS320F28335PFGA, such as figure 1 As shown, the program writing system includes: TMS320F28335PFGA, logic control unit, signal driver, first optocoupler, RS-232 level converter, PC, clamping circuit and second optocoupler, from the second optocoupler Lead out an OT terminal as the signal input port of the system; when working, first ground the OT terminal, power on the TMS320F28335PFGA, establish a serial communication network between the PC and the TMS320F28335PFGA, and update the program online. After programming is completed, TMS320F28335PFGA is powered off, the serial communication network is disc...

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Abstract

The invention relates to a TMS320F28335PFGA based program rewriting system and belongs to the technical field of program solidification. In order to improve high reliability, anti-interference and convenience when a TMS320F28335PFGA rewrites a program, the program rewriting system is realized by employing a logic control unit, optical couplers, a signal driver, a clamping circuit and an RS-232 level translator; a rewriting program mode of the TMS320F28335PFGA is determined by mainly employing special I / O (Input / Output) interface signals and a program-control signal which is collected by the logic control unit through isolation of the optical couplers. The TMS320F28335PFGA based program rewriting system is simple, flexible, high in safety and good in reliability and portability.

Description

technical field [0001] The invention relates to the technical field of program solidification, in particular to a program burning system based on TMS320F28335PFGA. Background technique [0002] The programming technology based on JTAG must be implemented through the JTAG interface in the CCS environment. Although programming based on the JTAG interface is easy to operate and convenient for debugging, it is often limited by space and transmission distance. [0003] (1) The program downloaded through the JTAG interface cannot be separated from the simulation environment of CCS. Because it needs to be connected to the emulator to download the program, it is often necessary to open the device shell. [0004] (2) Downloading the program through the JTAG interface cannot meet the requirements of long-distance downloading, and it is difficult to update the program of the system. [0005] Therefore, in some occasions where disassembly is difficult, it is very difficult to perform ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
CPCG06F8/65G06F8/654
Inventor 倪菊艳王永山陈晚如赵博王艳勇林桔秋周婧刘倩林青郭伟李丽丹郭黎霞姜哲段芊杨晓宇满艺张建伟
Owner CHINA NORTH VEHICLE RES INST
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