Information real-time interaction terminal based on embedded system

An embedded system, real-time interactive technology, applied in the architecture with a single central processing unit, instruments, general-purpose stored program computers, etc., can solve problems such as insufficient communication serial ports, improve communication distance, improve compatibility and flexibility, Abundant effects of communication interface

Pending Publication Date: 2019-09-03
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of the above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of information system based on embedded system that can effectively

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  • Information real-time interaction terminal based on embedded system
  • Information real-time interaction terminal based on embedded system
  • Information real-time interaction terminal based on embedded system

Examples

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Example Embodiment

[0022] The specific embodiments of the present invention will be further described below in conjunction with the drawings.

[0023] The system structure of the present invention is as figure 1 with figure 2 Shown, including CPU main control module, SPI expansion communication module, level conversion module and power management module:

[0024] The CPU main control module includes the core processor AM3358, reset circuit, clock circuit, download circuit, FLASH circuit, and SDRAM circuit; the AM3358 is the core processor of the system and is responsible for the signal processing of the system; the purpose of the reset circuit is to reset The system has two modes: manual button reset and power-on reset; the clock circuit needs to provide CPU working clock input, and the running speed of the program is determined by it; the download circuit is mainly used to download the program code during the program development process The FLASH circuit stores the operating system, user program co...

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Abstract

The invention discloses an information real-time interaction terminal based on an embedded system. The information real-time interaction terminal comprises a CPU main control module, an SPI expansioncommunication module, a level conversion module and a power management module. The CPU master control module comprises a core processor AM3358, a reset circuit, a clock circuit, a download circuit, aFLASH circuit and an SDRAM circuit. The AM3358 is provided with six configurable serial ports and two high-speed SPI interfaces, the CPU main control module is connected with the SPI expansion communication module through a high-speed SPI interface, and the SPI expansion communication module converts an SPI signal into a serial port signal and transmits the serial port signal to the level conversion module; the CPU main control module can configure a serial port to be connected with the level conversion module and convert a received TTL level into an RS422 level to communicate with the external equipment, and the power supply management module supplies power to the system. According to the present invention, the problem that the communication serial ports are insufficient is effectively solved, and meanwhile the input and output states of the serial ports can be freely configured.

Description

technical field [0001] The invention relates to an information real-time interactive terminal, in particular to an embedded system-based information real-time interactive terminal, which belongs to the field of communication serial port expansion devices. Background technique [0002] In recent years, with the gradual maturity of hardware modularization and integrated design, when designing actual hardware systems, it is often necessary for the core control device to have multiple serial ports to facilitate communication and control with external components. With the increase of collected data in the satellite receiver system, when the antenna, the display and control terminal, and the satellite data solving module interact satellite signal data, the problem of insufficient communication serial ports will gradually appear. The present invention mainly solves the problem of communication between modules in the satellite receiver system To solve the problem of insufficient num...

Claims

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Application Information

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IPC IPC(8): G06F15/78G06F13/42
CPCG06F15/7842G06F13/4282
Inventor 程建华郝博李思佳齐兵王斌斌任帅高泽铜
Owner HARBIN ENG UNIV
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