CN203232443U

CN203232443U - Wireless data reading and writing system applied to electronic device with EEPROM

Info

Publication number: CN203232443U
Application number: CN 201320218192
Authority: CN
Inventors: 郑绪成
Original assignee: Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2013-04-25
Filing date: 2013-04-25
Publication date: 2013-10-09
Anticipated expiration: 2023-04-25

Abstract

The utility model belongs to the technical field of data access, and provides a wireless data reading and writing system applied to an electronic device with EEPROM. According to the utility model, a wireless data reading and writing device and a data reading and writing module which carries out data reading and writing according to reading and writing instructions, data and radio frequency signals are used in the wireless data reading and writing system applied to the electronic device with EEPROM, wherein the reading and writing instructions, the data and the radio frequency signals are transmitted by the wireless data reading and writing device; the wireless data reading and writing device is arranged outside the electronic device; the data reading and writing module is arranged in the electronic device and is in wireless communication connection with the wireless data reading and writing device; without using a wireless reading and writing interface circuit, wireless data reading and writing can be carried out on EEPROM; and the cost of the electronic device can be reduced.

Description

Wireless data read-write system for the electronic equipment with EEPROM

Technical field

The utility model belongs to the Data Access Technology field, relates in particular to a kind of wireless data read-write system be used to the electronic equipment with EEPROM.

Background technology

At present, EEPROM(Electrically Erasable Programmable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)) possesses the erasable storage medium of data and be widely used in the various electronic equipments as a kind of, need the equipment of continuous upgrade parameter especially for some, as indoor machine of air-conditioner and off-premises station, all need by revising corresponding parameter according to function or the form of running status with parameter being recorded among the EEPROM.The EEPROM read-write mode of prior art mainly is based on wired read-write, by adopting the I2C standard communication protocol EEPROM is carried out data read-write operation; In addition, also there is part by wireless mode EEPROM to be carried out reading and writing data in the prior art, but all not directly EEPROM to be carried out the radio read-write operation, but after needing increase radio read-write interface circuit to receive read write command and information by communication, by wired I2C standard communication protocol EEPROM is carried out read-write operation again, this in fact just is equivalent to just by the wireless receiving data, and then EEPROM carried out wired read-write operation, so just make the electronic equipment with EEPROM must be built-in with above-mentioned radio read-write interface circuit virtually and could realize the radio read-write function, thereby electronic equipment is increased because of internal circuit configuration complexity cost thereupon.

The utility model content

The utility model provides a kind of wireless data read-write system be used to the electronic equipment with EEPROM, is intended to solve the problem that existing in prior technology makes electronic equipment increase because of internal circuit configuration complexity cost thereupon.

The utility model is achieved in that a kind of wireless data read-write system be used to the electronic equipment with EEPROM, comprises a wireless data read write line, and described wireless data read write line is placed on described electronic equipment, and described wireless data read-write system also comprises:

Read write command, data and the radiofrequency signal that sends according to described wireless data read write line carried out the data read-write module of data read-write operation;

Described data read-write module is built in described electronic equipment and carries out radio communication with described wireless data read write line and is connected, and comprises that one has the EEPROM of wireless data read-write capability.

The read write command of the utility model by adopting the wireless data read write line and send according to described wireless data read write line at the wireless data read-write system for the electronic equipment with EEPROM, data and radiofrequency signal are carried out the data read-write module of data read-write operation, and described wireless data read write line is placed on described electronic equipment, be connected and described data read-write module is built in described electronic equipment and carry out radio communication with described wireless data read write line, can realize the wireless data read-write operation to EEPROM equally not needing to adopt under the situation of radio read-write interface circuit, and then reduced the cost of electronic equipment, thereby solved the problem that existing in prior technology makes electronic equipment increase because of internal circuit configuration complexity cost thereupon.

Description of drawings

Fig. 1 is the modular structure figure of the wireless data read-write system of the electronic equipment with EEPROM that provides of the utility model embodiment;

Fig. 2 is the exemplary circuit structural drawing of the wireless data read-write system of the electronic equipment with EEPROM that provides of the utility model embodiment.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

The read write command of the utility model embodiment by adopting the wireless data read write line and send according to described wireless data read write line at the wireless data read-write system for the electronic equipment with EEPROM, data and radiofrequency signal are carried out the data read-write module of data read-write operation, and described wireless data read write line is placed on described electronic equipment, be connected and described data read-write module is built in described electronic equipment and carry out radio communication with described wireless data read write line, can realize the wireless data read-write operation to EEPROM equally not needing to adopt under the situation of radio read-write interface circuit, and then reduce the cost of electronic equipment.

Fig. 1 shows the modular structure of the wireless data read-write system of the electronic equipment with EEPROM that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows:

The wireless data read-write system for the electronic equipment with EEPROM that the utility model embodiment provides comprises a wireless data read write line 100, wireless data read write line 100 is placed on described electronic equipment, wireless data read write line 100 is existing wireless data read-write equipments commonly used, and it is gone out read write command, data and emission of radio frequency signals by antenna.

The wireless data read-write system also comprises:

Read write command, data and the radiofrequency signal that sends according to wireless data read write line 100 carried out the data read-write module 200 of data read-write operation.

Data read-write module 200 is built in described electronic equipment and carries out radio communication with wireless data read write line 100 and is connected, and comprises that one has the EEPROM of wireless data read-write capability.

In addition, before electronic equipment dispatches from the factory, when if desired the data read-write module 200 of EEPROM with wireless data read-write capability being tested, can be fixed in data read-write module 200 on the pcb board or be fixed on the tooling device that has antenna.

Fig. 2 shows the exemplary circuit structure of the wireless data read-write system of the electronic equipment with EEPROM that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows:

As the utility model one embodiment, data read-write module 200 comprises antenna AT, EEPROM and resistance R 1;

The two ends of antenna AT connect first antenna coupling pin AC0 and second antenna coupling pin AC1 of EEPROM respectively, the supply pin VCC of EEPROM connects direct supply, resistance R 1 is connected between the supply pin VCC and digital signal pin RF WIP/BUSY of EEPROM, the serial data pin SDA of EEPROM and serial clock pin SCL are connected with I2C communication bus in the electronic equipment, the output pin VOUT of EEPROM is connected with the filtering circuit in the electronic equipment, the grounding leg GND ground connection of EEPROM.Wherein, the direct current that the output pin VOUT of EEPROM is exported of the filtering circuit in the electronic equipment carries out exporting to after filtering is handled other power circuits in the electronic equipment.

Particularly, above-mentioned EEPROM can be that the model that ST Microelectronics produces is the EEPROM of M24LR16E-R.

Below in conjunction with principle of work above-mentioned wireless data read-write system is described further:

When needs carry out the wireless data read-write operation to EEPROM, wireless data read write line 100 at first sends radiofrequency signal to EEPROM, EEPROM changes into electric energy with this radiofrequency signal and supplies with for the required power supply of data read-write operation is provided self, when the electric energy voltage that transforms reaches the operating voltage of EEPROM, EEPROM enters normal operating conditions, at this moment, EEPROM communicates by antenna and wireless data read write line 100, and carries out data read-write operation according to read write command and data that wireless data read write line 100 sends.In the read-write process, because wireless data read write line 100 can constantly be launched the radiofrequency signal of carrying energy, so when EEPROM resolves at the wireless signal that wireless data read write line 100 is launched, can simultaneously received radiofrequency signal be collected and be converted into electric energy to keep the operate as normal of EEPROM.When collected electric energy surpass to be carried out the required electric energy of data read-write operation, this moment, collected electric energy can also be other circuit modules power supplies in the electronic equipment.

Above-mentioned EEPROM is that model is the EEPROM of M24LR16E-R, and it supports ISO15693 agreement and ISO18000-3mode1compatible agreement.And because the near field wireless communication technique (is NFC, Near Field Communication) is compatible ISO15693 agreement, so can also carry out the wireless data read-write operation to EEPROM by the equipment of built-in NFC chip, and then can simplify the data-updating method of EEPROM.Become the standard configuration of smart mobile phone along with the universal and near field communication (NFC) function (being the NFC function) of smart mobile phone, compatible ISO15693 agreement and possess the application of the EEPROM of wireless data read-write capability will be more extensive, can make like this and the restriction that the Data Update of EEPROM no longer is subjected to the application scenario will bring data refresh mode more easily to the user.For example, in the household electrical appliances series products, partial parameters is stored among the EEPROM, when needs are debugged, when maintenance or function upgrading, mobile phone that only need be by having the NFC function or other handheld devices are upgraded upgrading to the parameter among the EEPROM and are got final product, will simplify workload greatly like this, increase work efficiency.

Therefore, in the utility model embodiment, wireless data read write line 100 can be possess near field communication (NFC) function handheld device or with the electronic communication equipment of computer cooperating, specifically can be a kind of radio read-write accessory of mobile phone, individual removable computer (as panel computer) or mobile phone or computer.

The read write command of the utility model embodiment by adopting the wireless data read write line and send according to described wireless data read write line at the wireless data read-write system for the electronic equipment with EEPROM, data and radiofrequency signal are carried out the data read-write module of data read-write operation, and described wireless data read write line is placed on described electronic equipment, be connected and described data read-write module is built in described electronic equipment and carry out radio communication with described wireless data read write line, can realize the wireless data read-write operation to EEPROM equally not needing to adopt under the situation of radio read-write interface circuit, and then reduced the cost of electronic equipment, thereby solved the problem that existing in prior technology makes electronic equipment increase because of internal circuit configuration complexity cost thereupon.

The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. the wireless data read-write system for the electronic equipment with EEPROM comprises a wireless data read write line, and described wireless data read write line is placed on described electronic equipment, it is characterized in that, described wireless data read-write system also comprises:

2. wireless data read-write system as claimed in claim 1 is characterized in that, described data read-write module comprises antenna AT, described EEPROM and resistance R 1;

The two ends of described antenna AT connect first antenna coupling pin and second antenna coupling pin of described EEPROM respectively, the supply pin of described EEPROM connects direct supply, described resistance R 1 is connected between the supply pin and digital signal pin of described EEPROM, the serial data pin of described EEPROM and serial clock pin are connected with I2C communication bus in the described electronic equipment, the output pin of described EEPROM is connected the grounding leg ground connection of described EEPROM with filtering circuit in the described electronic equipment.

3. wireless data read-write system as claimed in claim 1 is characterized in that, described wireless data read write line be possess near field communication (NFC) function handheld device or with the electronic communication equipment of computer cooperating.

4. wireless data read-write system as claimed in claim 3 is characterized in that, described handheld device is mobile phone or individual removable computer.