CN204423055U

CN204423055U - A kind of single chip computer device expanding IO interface

Info

Publication number: CN204423055U
Application number: CN201520113034.1U
Authority: CN
Inventors: 秦树新; 李永红
Original assignee: Xi'an Sunlight Energising Gas Science And Technology Ltd
Current assignee: Xi'an Sunlight Energising Gas Science And Technology Ltd
Priority date: 2015-02-16
Filing date: 2015-02-16
Publication date: 2015-06-24
Anticipated expiration: 2025-02-16

Abstract

The utility model discloses a kind of single chip computer device expanding IO interface, comprise main processing block, main processing block is connected with expansion IO interface auxiliary processing module by module select signal line, SPI interface signal line, and expansion IO interface auxiliary processing module comprises auxiliary process single-chip microcomputer.Achieve the object of single-chip microcomputer volume by the multiple input and output control interface of SPI Interface Expanding, the object of the multiple input and output control interface of single-chip microcomputer needs can be met.

Description

A kind of single chip computer device expanding IO interface

Technical field

The utility model belongs to singlechip technology field, is specifically related to a kind of single chip computer device expanding IO interface.

Background technology

Current single-chip microcomputer only has one or limited several input and output control interfaces, but when the IO interface quantity that Single Chip Microcomputer (SCM) system needs exceeds the quantity of the input and output control interface that this single-chip microcomputer can provide, just need the more IO interface of single-chip microcomputer extension.

Utility model content

The purpose of this utility model is to provide a kind of single chip computer device expanding IO interface, achieves the object of single-chip microcomputer by the multiple IO interface of SPI Interface Expanding.

The technical scheme that the utility model adopts is, a kind of single chip computer device expanding IO interface, comprise main processing block, main processing block is connected with expansion IO interface auxiliary processing module by module select signal line, SPI interface signal line, and expansion IO interface auxiliary processing module comprises auxiliary process single-chip microcomputer.

Feature of the present utility model is also,

Wherein main processing block is MSP430F149 single-chip microcomputer.

Wherein auxiliary process single-chip microcomputer is MSP430F149 single-chip microcomputer.

Wherein SPI interface signal line connects the STE1 interface of auxiliary process single-chip microcomputer, SIMO1 interface, SOMI1 interface and UCLK1 interface.

The beneficial effects of the utility model are, auxiliary process single-chip microcomputer adopts MSP430F149 single-chip microcomputer, this model single-chip microcomputer has the IO interface of more than 5, the demand of expansion can greatly be met, main processing block carries out exchanges data by module select signal line options auxiliary process single-chip microcomputer, therefore the IO interface that main processing block obtains on auxiliary process single-chip microcomputer by module select signal line exports data message, thus is reached for the object that main processing block expands multiple input and output control interface.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation expanding the single chip computer device of IO interface of the utility model;

Fig. 2 is a kind of structural representation expanding auxiliary process single-chip microcomputer in the single chip computer device of IO interface of the utility model.

In figure, 1. main processing block, 2. module select signal line, 3.SPI interface signal line, 4. expands IO interface auxiliary processing module, 5. IO interface, 6. auxiliary process single-chip microcomputer.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.

The utility model provides a kind of single chip computer device expanding IO interface, as shown in Figure 1, comprise main processing block 1, main processing block 1 is MSP430F149 single-chip microcomputer, and main processing block 1 is connected with expansion IO interface auxiliary processing module 4 by module select signal line 2, SPI interface signal line 3; As shown in Figure 2, expansion IO interface auxiliary processing module 4 comprises auxiliary process single-chip microcomputer 6, auxiliary process single-chip microcomputer 6 is MSP430F149 single-chip microcomputer, and the STE1 interface of SPI interface line 3 and auxiliary process single-chip microcomputer 6, SIMO1 interface, SOMI1 interface and UCLK1 interface are connected.

A kind of using method expanding the single chip computer device of IO interface of the utility model is, main processing block 1 selects auxiliary process single-chip microcomputer 6 by module select signal line 2, auxiliary process single-chip microcomputer 6 is MSP430F149 single-chip microcomputer, it has multiple input and output control interface, and auxiliary process single-chip microcomputer 6 obtains the data of interface by self input and output control interface, the STE1 interface of auxiliary process single-chip microcomputer 6, SIMO1 interface, SOMI1 interface is connected SPI signal connecting line with UCLK1 interface, and carry out exchanges data by SPI interface signal line 3 and main processing block 1.

Claims

1. expand the single chip computer device of IO interface for one kind, it is characterized in that, comprise main processing block (1), main processing block (1) is connected with expansion IO interface auxiliary processing module (4) by module select signal line (2), SPI interface signal line (3), and expansion IO interface auxiliary processing module (4) comprises auxiliary process single-chip microcomputer (6).

2. a kind of single chip computer device expanding IO interface according to claim 1, is characterized in that, described main processing block (1) is MSP430F149 single-chip microcomputer.

3. a kind of single chip computer device expanding IO interface according to claim 1, is characterized in that, described auxiliary process single-chip microcomputer (6) is MSP430F149 single-chip microcomputer.

4. a kind of single chip computer device expanding IO interface according to claim 1-3 any one, it is characterized in that, described SPI interface signal line (3) connects the STE1 interface of auxiliary process single-chip microcomputer (6), SIMO1 interface, SOMI1 interface and UCLK1 interface.