CN201011718Y - Wireless NICs and NIC Development Kits for Development - Google Patents

Abstract

The utility model provides a wireless network card for development and a network card development device. The wireless network card for development includes: a PCMCIA connector for connecting with an external device; a bus protocol conversion module connected to the PCMCIA connector for converting the USB bus protocol Converted to CARDBUS bus protocol; baseband processing module, used for baseband processing of signals transmitted by the bus protocol conversion module; radio frequency receiving and transmitting module, connected to the baseband processing module for receiving and sending signals; multi-pin connector, used Because it has the function of the tail plug interface, it is connected to the wireless network card development device. By adding a patch connector to the wireless network card, a convenient way can be added for the early development and later maintenance of the network card, so that the development is not limited to the customized debugging fixture, nor is it limited by the lack of a PCMCIA slot in the PC.

Description

Wireless NICs and NIC Development Kits for Development

technical field

The utility model relates to the communication field, in particular to a development wireless network card and a network card development device.

Background technique

With the continuous popularization of INTENET applications, the network brings infinite convenience to everyone. It has become a demand to be able to access the network for data and voice services anytime and anywhere. The wireless data network card provides such convenience.

Existing wireless network cards generally work by plugging into a PC with a PCMCIA interface, so the design and development of wireless network cards must take into account how to complete the design of the entire network card system in such a compact and narrow space. In handheld devices such as mobile phones, a convenient tail plug interface is generally provided for debugging of handheld devices, software system diagnosis, software download, communication between PCs, and charging and power supply functions. However, in order to adapt to the limitation of the network card structure space, the network card design can only abandon the tail plug interface, select the test point pad and use the fixture to download, debug, etc. inconvenience factors.

This utility model will learn from the tail plug device of portable products such as mobile phones to provide a convenient development and debugging device for the wireless network card—a chip-type multi-pin connector, and provide a set of effective development methods based on it. Thereby greatly improving development efficiency and reducing development and testing costs.

Utility model content

To solve one or more problems above, the utility model provides a wireless network card for development and a network card development device to facilitate the early development and later maintenance of the network card.

The wireless network card of the present utility model comprises: PCMCIA connector, is connected with external device; Bus protocol conversion module, is connected to PCMCIA connector, is used for converting USB bus protocol into CARDBUS bus protocol; The signal transmitted by the protocol conversion module is processed by the baseband; the radio frequency receiving and transmitting module is connected to the baseband processing module for receiving and sending signals; the multi-pin connector is used for the function of the tail plug interface and is connected to the wireless network card development device.

In the development wireless network card of the present invention, the multi-pin connector is flat. The multi-pin connector can be a patch connector. The thickness of the multi-pin connector is less than or equal to 2mm.

In the wireless network card for development of the utility model, the multi-pin connector is connected with at least one of the following signal lines: JTAG signal, USB signal, UART serial port signal, power signal, and ground signal.

In the wireless network card for development of the utility model, the multi-pin connector is encapsulated in the wireless network card for development.

The network card development device of the present utility model comprises: a network card for development, with a multi-pin connector; to external control devices and emulators.

By adding a patch connector to the wireless network card, a convenient way can be added for the early development and later maintenance of the network card, so that the development is not limited to the customized debugging fixture, nor is it limited by the absence of PCMCIA slots in the PC.

Description of drawings

The drawings described here are used to provide a further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a block diagram of a wireless network card for development according to an embodiment of the present invention; and

Fig. 2 is a block diagram of a network card development device according to an embodiment of the present invention.

Detailed ways

Referring to the accompanying drawings, the specific embodiments of the present utility model will be described in detail below.

Fig. 1 is a block diagram of a wireless network card for development according to an embodiment of the present invention.

The wireless network card of the PCMCIA interface generally communicates with the notebook computer through the CARDBUS bus. The network card demodulates the data after receiving the data in the wireless network, and sends the business data to the application program of the PC through the CARDBUS bus interface, and the application program of the PC terminal The program can also send data to the network card single board through the CARDBUS bus, and the network card modulates the baseband data and sends it to the wireless network. This is the basic process for a wireless network card to work properly.

In order to complete the above functions, the basic composition of the wireless network card has four parts: baseband modulation and demodulation, RF transmission and reception, power supply, and bus protocol conversion part. Among them, the bus protocol conversion part mainly completes the conversion of the USB bus protocol to the CARDBUS bus protocol, and the communication rate can reach the USB 1.1 standard to ensure that the data rate requirements of the wireless network card are met. The above system is summarized as a network card function module here. In order to complete the design, debugging, production and testing of the network card, the network card system also needs to provide a debugging module, in which the device innovation is included in the debugging module.

Limited by the space and structure of the network card, the traditional debugging module of the wireless network card generally only provides test point pads. In this way, during the development process or after-sales maintenance, it is necessary to use the fixture to download, debug and repair the network card software, which is not efficient. And very inconvenient.

In order to bring convenience to the research and development and subsequent repair of network card products, drawing on the development experience of portable products such as mobile phones, you can choose a flat connector (SMD type) and connect the corresponding signal line of the test point to this multi-pin patch On the connector, it provides the function similar to the port of the mobile phone. The signal lines on it generally include a set of JTAG signals, USB signals, UART serial port signals, power signals and ground signals, and the above data lines are selected and added according to actual needs.

As shown in Figure 1, wireless network card 100 of the present utility model comprises: PCMCIA connector 102, is connected with external device; Bus protocol conversion module 104, is connected to PCMCIA connector, is used for converting USB bus protocol into CARDBUS bus protocol; The baseband processing module 106 is used to carry out baseband processing to the signal transmitted through the bus protocol conversion module; the radio frequency receiving and transmitting module 108 is connected to the baseband processing module for receiving and sending signals; the multi-pin connector 110 is used for having a tail The function of the plug interface is connected to the wireless network card development device.

The placement of each module in Figure 1 is just to illustrate the relationship, and does not represent the real placement of the actual product. After adding this connector in the design of the wireless network card, use a flexible cable to connect the multi-pin SMD connector to a specific transfer & development board device. This transfer board device provides power interface, USB interface, and JTAG interface. As well as the UART serial port, according to the actual development and debugging needs, the above-mentioned various interfaces can be selected and added. Based on the above connections, the dedicated development emulator can conveniently download and debug programs through the JTAG interface; various development tools on the PC side can also download and diagnose programs through the USB interface or UART serial port; the client software of the wireless network card can also be Based on this USB port or UART serial port to communicate.

Wherein, the multi-pin connector is flat. The multi-pin connector can be a patch connector. The thickness of the multi-pin connector is less than or equal to 2mm. The multi-pin connector is connected with at least one of the following signal lines: JTAG signal, USB signal, UART serial port signal, power signal, and ground signal. The multi-pin connector is packaged in the development wireless card.

The selected multi-pin connector is a SMD connector, and the thickness is guaranteed to be within 2mm, which will not cause any space interference problems to the structural design of the network card; and this connector needs to meet the requirements of plug-in resistance and SMD technology. In addition, this structure is not developed for users, but only for R&D, production, testing and after-sales maintenance personnel. It can be closed during the design of the network card shell to avoid the risk of unsightly or reduced antistatic performance.

Fig. 2 is a block diagram of a network card development device according to an embodiment of the present invention. As shown in Figure 2, the network card development device of the present utility model includes: a network card 100 for development, which has a multi-pin connector; multi-pin connectors, and connections to external controls and emulators.

In the traditional wireless network card design without SMD connector, you can download and debug JTAG by making a bulky custom fixture, or insert the PCMCIA interface on the PC through the CARDBUS interface for software download and program diagnosis. It is limited to the PCMCIA interface of the debugging fixture and PC.

Adding a chip connector to the wireless network card can add a convenient way for the early development and later maintenance of the network card, so that the development is not limited to the customized debugging fixture, nor is it limited by the lack of a PCMCIA slot in the PC.

The above conveniences are all brought by the multi-pin SMD connector, which saves the process of making fixtures during development, debugging and maintenance, and provides additional debugging channels for program diagnosis, which not only reduces R&D costs, but also improves R & D, testing and maintenance efficiency, is a very popular wireless network card development device.

The utility model is further described below by an example:

In this example, NAIS's 20-core 0.4-pitch PCB patch soldering socket AXK720145v is used as an example of the multi-pin patch connector in the above patent statement. The specific parameters of this connector are as follows: 20PIN, 0.4PITCH, 1.5mm high, rated Current 0.3A/terminal, rated voltage 60V, insulation resistance MIN1000MΩ, contact resistance MAX90mΩ. The size of this connector is: 6.3*5.1*1.5.

During the development of the wireless network card, the signals connected by this connector are roughly listed in Table 1:

serial number Pin definition serial number Pin definition 1 N/A 11 GND 2 JTAG_TRST_N 12 USB_CONN_D_P 3 JTAG_TMS 13 GND 4 N/A 14 JTAG_TCK 5 UART_TXD 15 JTAG_TDI 6 UART_RXD 16 JTAG_TDO 7 JTAG_RTCK 17 VCC3.3V 8 JTAG_RESOUT_N 18 VCC3.3V 9 GND 19 N/A 10 USB_CONN_D_M 20 N/A

Table 1 Signal definitions on the 20pin connector

In practical applications, the signals in Table 1 can be selected or added. The signal names can be defined by yourself, and the order of the signals is also a reference. After determining the actual number of signals, determine how many pins are needed for multi-pin patch connections. device.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (7)

1. an exploitation wireless network card is characterized in that, described wireless network card comprises:

The PCMCIA connector is connected with external device (ED);

The bus protocol modular converter is connected to described PCMCIA connector, is used for the usb bus protocol conversion is become the CARDBUS bus protocol;

Baseband processing module is used for the signal through described bus protocol modular converter transmission is carried out Base-Band Processing;

Radio frequency receives and transmitter module, is connected to described baseband processing module, is used for receiving and sending signal;

The multiway connector has the function of tail interface, is connected to the wireless network card development device.

2. exploitation wireless network card according to claim 1 is characterized in that, described multiway connector is a platypelloid type.

3. exploitation wireless network card according to claim 1 is characterized in that, described multiway connector is SMD connector.

4. according to each described exploitation wireless network card in the claim 1 to 3, it is characterized in that the thickness of described multiway connector is smaller or equal to 2mm.

5. exploitation wireless network card according to claim 4 is characterized in that, described multiway connector is connected with following at least a holding wire: JTAG signal, usb signal UART rs 232 serial interface signal, power supply signal and ground signalling.

6. exploitation wireless network card according to claim 4 is characterized in that, described multiway connector is encapsulated in described exploitation with in the wireless network card.

7. a use, is characterized in that comprising with the network interface card development device of network interface card according to each described exploitation in the claim 1 to 6:

Network interface card is used in exploitation, has the multiway connector; And

Switching and development module are used for described network interface card is developed, and are connected to the described multiway connector of described exploitation with network interface card by flexible cable, and are connected to external control device and simulator.

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