Supercharge Your Innovation With Domain-Expert AI Agents!

SPI bus communication system

A SPI bus, bus communication technology, applied in the direction of bus network, data exchange through path configuration, etc., can solve problems such as transmission efficiency and signal instability, and achieve the effect of eliminating jitter, flexible programming, and automatic jitter.

Inactive Publication Date: 2015-06-03
林南
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problems of signal instability and low transmission efficiency in the existing SPI bus communication system, the present invention provides a high-efficiency SPI bus communication system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • SPI bus communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] SPI bus communication system principle of the present invention is as figure 1 As shown, the host is connected with A / D converter, E2PROM and slave through the serial interface, and the host and slave are single-chip microcomputers. Single-chip microcomputer, such as Motorola's M68HC08 series, Cygnal's C8051FOXX series, and Philips' P89LPC93X series. A / D and D / A converters, such as: AD7811 / 12 of AD Company, TLC1543, TLC2543, TLC5615 of TI Company, etc. Real-time clock RTC, such as DS1302 / 05 / 06 of Dallas Company. Temperature sensor, such as AD7816 / 17 / 18 of AD Company; LM74 of NS Company, etc. Other devices, such as LED control driver MAX7219, HD7279, etc., X5045 with integrated watchdog, voltage monitoring, E2PROM and other functions.

[0010] The serial interface with the CPU is adopted, which only occupies 4 ports; there is a decoder inside, which can directly receive BCD code or hexadecimal code, and has two decoding methods at the same time, realizing LED digital ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an SPI (Serial Peripheral Interface) bus communication system. A host unit is connected with an A / D converter, an E2PROM and a slave unit through a serial interface; the host unit and the slave unit are single chip microcomputers; the SPI bus communication system further comprises an LED control driver MAX7219, an HD7279, an integrated watchdog and a voltage monitor. The SPI bus communication system and a CPU only occupy four interface wires by a serial interface mode; a decoder is arranged in the SPI bus communication system, so that a BCD code or a hexadecimal code can be directly received; meanwhile, by two decoding modes, various control instructions such as LED digital tube bit addressing and section addressing and blanking and flickering properties are realized, and programming is flexible; cyclic left shifting and cyclic right shifting instructions are achieved; the SPI bus communication system comprises a driver, so that an LED can be directly driven without a peripheral element, and a cascading function is realized; a keyboard interface which can conveniently realize more than 8-bit display or more than 64-bit display is configured; the SPI bus communication system has functions of automatically eliminating shake and identifying the values of keys.

Description

technical field [0001] The invention relates to the field of electronic information, in particular to the field of wireless communication systems. Background technique [0002] With the development of electronics and informatization and the continuous increase of demand, communication technology has played an increasingly important and irreplaceable role. The SPI bus system is a synchronous serial peripheral interface that enables the MCU to communicate with various peripheral devices in a serial manner to exchange information. Peripheral settings FLASHRAM, network controller, LCD display driver, A / D converter and MCU and so on. The SPI bus system can directly interface with a variety of standard peripheral devices produced by various manufacturers. The interface generally uses 4 lines: serial clock line (SCK), master input / slave output data line MISO, master output / slave input Data line MOSI and active-low slave selection line SS (some SPI interface chips have interrupt...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04L12/40
Inventor 林南
Owner 林南
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com