Unlock instant, AI-driven research and patent intelligence for your innovation.

Asynchronous device controlled by switch

A technology of asynchronous device and switch control, applied in the direction of instruments, electrical digital data processing, etc., can solve the problem of inconvenient signal transmission, etc., and achieve the effect of simple operation principle and simple structure

Inactive Publication Date: 2013-05-08
CHENGDU HI TECH ZONE NIMA ELECTRONICS PROD DESIGN STUDIO
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main processing chip of the positioning device only provides a set of UART communication ports, and there are multiple peripheral devices that need to control communication through UART, and it is necessary to communicate with a certain device separately during the work process, and a set of UART communication ports, Inconvenience caused by signal transmission

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
  • Asynchronous device controlled by switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, the asynchronous device controlled by a switch includes a positioning device, and the positioning device is connected with a control switch. In the present invention, a double-pole three-throw control switch is used for multiplexing of UART ports. The control switch is controlled by the main processing chip, and switches to different devices for communication according to communication requirements. This control switch is always connected to the computer when the system is turned off.

[0017] The control switch is connected with audio equipment.

[0018] The control switch is connected with a computer.

[0019] The control switch is connected with a card reading and writing device. When it is necessary to communicate with a specific device, the control switch is switched to the corresponding state to only communicate with the device alone.

[0020] A signal transmitter and a signal receiver are arranged on the positioning device.

[002...

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 asynchronous device controlled by a switch. The asynchronous device comprises a positioning device. The positioning device is connected with the control switch. The asynchronous device is simple in structure and operation principle, and problems that when a single UART (universal asynchronous receiver / transmitter) is directly multiplexed, signals can be received by both required communication equipment and equipment which does not need the signals, the other equipment can be finally subjected to misoperation, and the normal communication signals can be affected by the other equipment in turn are solved.

Description

technical field [0001] The invention relates to an asynchronous device, in particular to an asynchronous device controlled by a switch, which belongs to the communication field. Background technique [0002] UART is a universal serial data bus used for asynchronous communication. The bus bidirectional communication, can realize full-duplex transmission and reception. In embedded designs, UARTs are used to communicate with PCs, including monitoring debuggers and other devices such as EEPROMs. Asynchronous communication is a very common way of communication. Compared with synchronous communication, when asynchronous communication sends characters, the time slot between the characters sent can be arbitrary. Of course, the receiving end must always be ready to receive (if the power of the receiving end host is not connected, then It doesn't make sense for the sender to send characters, because the receiver can't receive them at all). The sending end can start sending charact...

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): G06F13/38
Inventor 黄友华
Owner CHENGDU HI TECH ZONE NIMA ELECTRONICS PROD DESIGN STUDIO