Program burning and backward-reading method with watchdog circuit and based on DSP chip

A watchdog and program technology, applied in program control devices, program loading/starting, etc., can solve problems such as unreliability, complex implementation, complicated programming and readback process, etc., and achieve simple programming and readback, reduce Small complexity and difficulty, avoiding the effect of watchdog circuit reset

Active Publication Date: 2014-09-24
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology allows for easy access to programs that have been developed through computer simulations or hardware description techniques without having complex coding processes involved. It also includes an improved version called Watch Dog Circuit (WC), where it can store more complicated instructions during simulation runs than traditional methods like Programming Linescope Code (PLCG) memory systems. Additionally, this new system simplifies the procedure used when writing code from scratches onto disks instead relying solely upon random addresses provided within certain fields inside the CPU's registers. Overall, these technical improvements make programming and playback tasks easier compared to older ways such as PCIE cards.

Problems solved by technology

This patented describes how certain functions are performed when programs require periodic input from their CPU (Central Processor) or other components during execution. These processes involve generating regular dogs called feeds, allowing them to access memory quickly without complex calculations. However, these techniques have limitations such as requiring specific hardware devices like timers or counters, making writing new instructions difficult if they don't happen right beforehand. Additionally, some methods may result in errors due to incorrect timing caused by factors like temperature changes or power supply variations.

Method used

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  • Program burning and backward-reading method with watchdog circuit and based on DSP chip
  • Program burning and backward-reading method with watchdog circuit and based on DSP chip
  • Program burning and backward-reading method with watchdog circuit and based on DSP chip

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Embodiment Construction

[0023] The inventive idea of ​​the present invention is: use the data loading function of CCS software to store the target program into the on-chip RAM area whose starting address is 0x2000, and this address can be adjusted according to the length of the target program, such as 0x3000, programming and returning The read program writes the target program word by word into the ROM chip whose starting address is 0x8000. This address can be adjusted according to different hardware, such as 0x7000. Every time a word is written, it is verified and the written target program is read back. To the on-chip RAM area whose starting address is 0x1000, this address can be adjusted according to the length of the target program, such as 0x4000, which is different from the address where the target code is loaded in principle. Using the storage function of CCS, the target program is stored in the hard disk and verified with the target program. The program is simple and efficient, and no file op...

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Abstract

The invention discloses a program burning and backward-reading method with a watchdog circuit and based on a DSP chip. Hardware is connected with a micro processor by means of an upper computer through a simulator, and peripheral circuits of a DSP comprise the watchdog circuit and an ROM circuit. The method is characterized in that burning and backward-reading processes of a target code are achieved, the burning program and the backward-reading program both have a dog feeding function, the situation that a burning process is interrupted due to resetting of a dog feeding circuit cannot occur, reliability is high, CCS software is made full use of to achieve the transmission function of data between the upper computer and the micro processor, file operations are not needed in the whole process, only the CCS software needs to be operated in the burning and backward-reading processes and operations are easy.

Description

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Claims

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Application Information

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Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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