CN205263798U

CN205263798U - Simple and easy singlechip burns to be write and testing arrangement

Info

Publication number: CN205263798U
Application number: CN201520871523.3U
Authority: CN
Inventors: 蔡龙军; 杨猛; 谢超; 董艳; 杨文伟; 邢锐; 阚树林
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2015-11-04
Filing date: 2015-11-04
Publication date: 2016-05-25
Anticipated expiration: 2025-11-04

Abstract

The utility model relates to a simple and easy singlechip burns to be write and testing arrangement, including chip, chip cassette, chip carrier and PCB circuit board, chip carrier fixes on PCB circuit board, the chip cassette is installed on chip carrier, install the chip is on the chip cassette, the chip is linked together through the circuit module of chip cassette and chip carrier and PCB circuit board. The utility model discloses the device is simple, reliable, convenient to use, and reuse that can be infinitely time guarantees that every singlechip burns to write can both succeed that operating personnel only needs put into the draw -in groove with the singlechip, does not need fixing of any other just to enable single chip microcomputer program and successfully burns the record.

Description

A kind of simple and easy single-chip microcomputer programming and testing arrangement

Technical field

The utility model belongs to electronic technology field, especially a kind of simple and easy single-chip microcomputer programming and testing arrangement.

Background technology

The principle of SCM program programming is: computer expert crosses data wire program file is sent to debugger, debugger process serial ports, and agreement according to the rules, the inner ROM content of single-chip microcomputer that change will write, completes programming. In prior art, SCM program programming method is in each pcb board, to design a programming interface to carry out burning, or single-chip microcomputer is placed on programming device, by each pin corresponding rear compression one by one, carries out burning. For a lot of SMD single-chip microcomputers now, degree of integration is more and more higher, pin and pin-pitch all diminish, traditional programming device, be difficult for being fixed because pin is too small, and easily cause single-chip microcomputer pin and programming device loose contact, even short circuit can not be tested burning result after SCM program burning.

Utility model content

The utility model overcomes the deficiencies in the prior art, a kind of simple and easy single-chip microcomputer programming and testing arrangement are provided, before chips welding, first control program programming is entered to single-chip microcomputer by this device, whether and it is successful to test programming, then by the chips welding of the good program of programming on pcb board, need to not give every pcb board programming program like this, and BDM background debugging module can omitted in every pcb board, save manufacturing cost.

For achieving the above object, the utility model adopts following technical scheme:

A kind of simple and easy single-chip microcomputer programming and testing arrangement, comprise chip, chip deck, chip pad and PCB circuit board, described chip pad is fixed on PCB circuit board, described chip deck is arranged in chip pad, and described chip is arranged on chip deck, and described chip is connected with the circuit module of PCB circuit board by chip deck and chip pad.

Described chip is MC9S08AW32 single-chip microcomputer, totally four row's 44 pins, LQFP paster type encapsulation.

Described chip deck upper surface is provided with groove, and the quantity of groove is identical with chip pin number, is sprayed with conducting metal at groove inwall, mutually insulated between each groove, and chip pin is conducting after putting into groove; The bottom surface of described chip deck is provided with contact pin.

Described chip pad upper surface is provided with and the corresponding hole clipping of contact pin, and chip deck inserts hole clipping by contact pin and is connected with chip pad.

Described PCB circuit board is provided with modules in Circuits System, comprises PCB base plate, BDM program burn writing module, and the contact pin interface of connection BDM downloader, passes through the burned chip of BDM interface by the program writing; SCM peripheral equipment, for providing high accuracy high-frequency calculating, makes motor operation more stable; Power regulator module, by the supply voltage of 12V stable 5V voltage of exporting for chip operation after the step-down of voltage stabilizing chip; Microswitch module, sends corresponding signal, is that chip is carried out corresponding function according to this instruction, and whether programming is successful to touch microswitch test chip program; Motor drive module and motor, described motor drive module sends different PWM drive motors runnings according to the state of microswitch module in test, and to judge chip program, whether programming is successful.

Compared with prior art, the utlity model has following advantage:

The utility model can omit the BDM interface in system in the time of design, so can save PCB space, can also save manufacturing cost. After program burn writing, before pcb board welding, carry out System Functional Test, after ensureing to weld, each product can normally be worked, and reduces product rejection rate.

The utility model device is simple, reliable, easy to use, and recycling that can be unlimited ensures that each single-chip microcomputer programming can be successful, and operating personnel only need put into draw-in groove by single-chip microcomputer, just can make SCM program success burning without any need for fixing of other.

Brief description of the drawings

Fig. 1 is the programming of the utility model SCM program and test philosophy block diagram.

Fig. 2 is the utility model overall structure schematic diagram.

Fig. 3 is the utility model monolithic Bigpian model, taking MC9S08AW32 as example, and single 11 pins.

Fig. 4 is the utility model chip deck groove structure figure.

Fig. 5 is the utility model chip card holder structure figure.

Fig. 6 is the utility model chip pad and PCB figure.

Detailed description of the invention

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As depicted in figs. 1 and 2, a kind of simple and easy single-chip microcomputer programming and testing arrangement, it is characterized in that, comprise chip 100, chip deck 200, chip pad 300 and PCB circuit board 400, described chip pad 300 is fixed on PCB circuit board 400, described chip deck 200 is arranged in chip pad 300, and described chip 100 is arranged on chip deck 200, and described chip 100 is connected with the circuit module of PCB circuit board 400 by chip deck 200 and chip pad 300.

As shown in Figure 3, described chip 100 is MC9S08AW32 single-chip microcomputer, totally four row's 44 pins, LQFP paster type encapsulation.

As shown in Figure 4 and Figure 5, described chip deck 200 upper surfaces are provided with groove 210, and the quantity of groove 210 is identical with chip 100 number of pins, are sprayed with conducting metal at groove 210 inwalls, mutually insulated between each groove 210, chip 100 pins are conducting after putting into groove 210; The bottom surface of described chip deck 200 is provided with contact pin 220.

As shown in Figure 6, described chip pad 300 upper surfaces are provided with and the corresponding hole clipping of contact pin 220, and chip deck 200 inserts hole clipping by contact pin 220 and is connected with chip pad 300.

Described PCB circuit board 400 is provided with modules in Circuits System, comprises PCB base plate 410, BDM program burn writing module 420, and the contact pin interface of connection BDM downloader, passes through the burned chip 100 of BDM interface by the program writing; SCM peripheral equipment 430, for providing high accuracy high-frequency calculating, makes motor operation more stable; Power regulator module 440, by the supply voltage of the 12V 5V voltage that stable output is worked for chip 100 after the step-down of voltage stabilizing chip; Microswitch module 450, sends corresponding signal, is that chip 100 is carried out corresponding function according to this instruction, and whether programming is successful to touch microswitch test chip 100 programs; Motor drive module 460 and motor 470, described motor drive module 460 sends different PWM drive motors 470 according to the state of microswitch module 450 and turns round in test, and to judge chip 100 programs, whether programming is successful.

Claims

1. a simple and easy single-chip microcomputer programming and testing arrangement, it is characterized in that, comprise chip (100), chip deck (200), chip pad (300) and PCB circuit board (400), described chip pad (300) is fixed on PCB circuit board (400), described chip deck (200) is arranged in chip pad (300), it is upper that described chip (100) is arranged on chip deck (200), and described chip (100) is connected with the circuit module of PCB circuit board (400) by chip deck (200) and chip pad (300).

2. simple and easy single-chip microcomputer programming according to claim 1 and testing arrangement, is characterized in that, described chip (100) is MC9S08AW32 single-chip microcomputer, totally four row's 44 pins, LQFP paster type encapsulation.

3. simple and easy single-chip microcomputer programming according to claim 1 and testing arrangement, it is characterized in that, described chip deck (200) upper surface is provided with groove (210), the quantity of groove (210) is identical with chip (100) number of pins, be sprayed with conducting metal at groove (210) inwall, mutually insulated between each groove (210) is conducting after chip (100) pin is put into groove (210); The bottom surface of described chip deck (200) is provided with contact pin (220).

4. simple and easy single-chip microcomputer programming according to claim 1 and testing arrangement, it is characterized in that, described chip pad (300) upper surface is provided with and the corresponding hole clipping of contact pin (220), and chip deck (200) inserts hole clipping by contact pin (220) and is connected with chip pad (300).

5. simple and easy single-chip microcomputer programming according to claim 1 and testing arrangement, is characterized in that, described PCB circuit board (400) is provided with the modules in Circuits System, and PCB circuit board (400) comprises PCB base plate (410); BDM program burn writing module (420), for connecting the contact pin interface of BDM downloader, passes through the burned chip of BDM interface (100) by the program writing; SCM peripheral equipment (430), for providing high accuracy high-frequency calculating, makes motor operation more stable; Power regulator module (440), for supplying the 5V voltage of chip (100) work by the stable output after the step-down of voltage stabilizing chip of the supply voltage of 12V; Microswitch module (450), for sending corresponding signal, makes chip (100) carry out corresponding function according to this signal, and whether programming is successful to touch microswitch test chip (100) program; Motor drive module (460) and motor (470), described motor drive module (460) is for sending different PWM drive motors (470) runnings in test according to the state of microswitch module (450), and to judge chip (100) program, whether programming is successful.