Mainboard using 32-bit DSP as kernel for microcomputer protection device

Abstract

The invention discloses a mainboard of a microcomputer protective device, which takes a 32-bit DSP as a core and mainly comprises a CPU module and a 14-bit sampling module connected with the CPU module. A double-port SRAM, a CPLD logic device, a CAN bus module and a communication module are also arranged in the mainboard; the CPU module comprises a CPU management module and a DSP central processing module; the CPU management module, the double-port SRAM and the DSP central processing module are sequentially connected through bidirectional buses; at the same time, the CPU management module is also connected with the CPLD logic device and the communication module, and the sampling module and the CAN bus module are also connected with the DSP central processing module. A modular circuit with multiple functions is also arranged in the mainboard, such as a warning device, a display module, a clock module, etc. The mainboard has the advantages of strong function, high processing speed, high informatization level, convenient data sharing, good stability, etc., and is mainly used in the microcomputer protective device.

Description

technical field [0001] The invention relates to a main board, in particular to a main board of a microcomputer protection device with a 32-bit DSP as the core. Background technique [0002] The microcomputer protection device is a relay protection device composed of a microprocessor. Because of its high reliability, high selectivity, high sensitivity and high information program, the microcomputer protection device has been widely used in the field of power system relay protection. Widely used. With the rapid development of computer technology and semiconductor technology, the functions of microcomputer protection devices are becoming more and more powerful, and the degree of informatization is also getting higher and higher; at the same time, its application field has also rapidly expanded from a single professional power user to factories, mines, enterprises, Commercial, military and other end users. [0003] The performance of the microcomputer protection device is main...

AI Technical Summary

Problems solved by technology

[0004] 1. With the further development of single-chip processing technology, the expansion of user needs, and the increasing requirements for informatization, the computing power of the microprocessor on the motherboard of the traditional microcomputer protection device can no longer meet the needs of high-speed computing and information. the requirements of

[0005] 2. The CPU bus of the motherboard of the traditional microcomputer protection device is outside the chip, which is susceptible to external electromagnetic interference, which affects the stability of the microcomputer protection device to a certain extent;

[0006] 3. It is difficult to update the program of the main board of the traditional microcomputer protection device, and the intelligence level of the entire microcomputer protection device is not high, and the degree of informatization is not enough

[0007] To sum up, the main board of the microcomputer protection device currently used can no longer meet the high speed, high intelligence and network requirements of the majority of users at this stage.

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