CN202013746U - Burning tool - Google Patents

The utility model relates to a burning tool which comprises a first interface connected with a computer, a burning table connected with a programmable chip and a protocol conversion unit connected with the first interface; and the protocol conversion unit is connected with the burning table. In the burning tool, the first interface is connected with the computer, so as to supply power by the computer directly; and the burning tool is simple in structure and low in cost. The protocol of the first interface is converted to the protocol that can be identified by the programmable chip by the protocol conversion unit, the burning tool can be used for burning the programmable chip directly, and the burning process is very simple.

A kind of replication tool

Technical field

The utility model relates to a kind of replication tool, especially a kind of simple burn recording instrument.

Background technology

Replication tool is used for writing data on programmable chip, makes chip have different functions.Existing a kind of replication tool on the market, it comprises a plurality of control chips, can finish burning and two kinds of functions of exploitation, but its replication rate is slow, and is too high for the enterprise cost of only selecting the burning function.The another kind of replication tool that only has the burning function, it comprises the microprocessing unit of the information of sending and processing corresponding informance, the data buffer zone that reading/writing document is kept in and the electric power loop that power management is provided.Microprocessing unit earlier with data storage to the data buffer area, and then by interface with recordable data to programmable chip, burning process complexity, and need the electric power loop managing electrical power, complicated structure has increased cost.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of burning process and replication tool simple in structure and that cost is low.

To achieve these goals, the utility model provides a kind of replication tool, it comprises first interface that is connected with computing machine, the burning platform that connects programmable chip, the conversion unit of protocol that is connected with described first interface, and described conversion unit of protocol connects described burning platform.

Compared with prior art, replication tool of the present utility model connects computing machine by first interface, directly utilizes computer power supply, and simple in structure, cost is lower.And be the agreement of programmable chip identification by conversion unit of protocol with the protocol conversion of first interface, directly programmable chip is carried out burning, the burning process is simple.

Description of drawings

Fig. 1 is the connection diagram of the utility model replication tool.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

Consult shown in Figure 1, replication tool comprises first interface that is connected with computing machine, the conversion unit of protocol that is connected with described first interface, second interface that is connected with described conversion unit of protocol and the burning platform that is connected with second interface, and programmable chip connects described burning platform.Described conversion unit of protocol comprises protocol conversion chip that is connected with described first interface and the crystal oscillator that is connected with the protocol conversion chip, and described protocol conversion chip is connected with described second interface respectively with described crystal oscillator.

In the present embodiment, described first interface is selected USB (Universal Serial BUS, USB (universal serial bus)) interface, described protocol conversion chip selects USB to change UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous reception/transmitter) chip, the frequency of described crystal oscillator is 20Hz, and described second interface is the connector of 14pin (pin).Wherein, described USB interface links to each other with computing machine and carries out data transmission, and provides power supply for replication tool; Described protocol conversion chip is converted to usb protocol the UART agreement of programmable chip identification; Described crystal oscillator provides reference frequency for burning; Described second interface transfers data to programmable chip, finishes burning.

Compared with prior art, replication tool of the present utility model connects computing machine by first interface, and the transmission data also provide power supply, and simple in structure, cost is lower.And be the agreement of programmable chip identification by the protocol conversion chip with the protocol conversion of first interface, directly programmable chip is carried out burning, the burning process is simple.

The utility model is not limited to the foregoing description, as: as described in first interface can select other data transmission interface, described protocol conversion chip also can make corresponding changes according to the agreement of selected first interface and programmable chip identification, and described second interface can select number of pins to be not less than other connectors of seven.