Semi-automatic burner for flash device

Abstract

The utility model discloses a flash device semi-automatic burner which comprises a main control chip, the main control chip is in communication connection with a connector and a test seat, the connector is detachably connected with a burning upper computer, and the test seat is detachably connected with a flash device. According to the utility model, the flash device is convenient to replace through the arrangement of the test seat, the skill requirements on operators are reduced, and the risk of damage to the bonding pad and the pins caused by melting of welding spots is prevented at the same time; the connector is in communication connection with an upper computer, so that connection and disassembly are convenient, the upper computer is convenient to replace, and the computer is convenient to move; in addition, the programmer can receive an instruction of an upper computer, semi-automatic operation is achieved, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, and more specifically to a semi-automatic burner for flash devices. Background Art

[0002] In current electronic device manufacturing, Flash devices, as an important storage component, are usually fixed to the PCBA (printed circuit board assembly) board by welding, and then burned and functional tested. This fixing method ensures a stable connection between the Flash device and the circuit board, thereby achieving reliable data storage and transmission.

[0003] However, in actual operation, when the Flash device needs to be replaced, the solder joints of the Flash device need to be heated and melted before removal. In this process, it is easy to damage the pads on the PCBA board due to improper operation or excessive temperature. Damage to the pads affects the stability and reliability of the entire circuit board. In addition, even if the old Flash device is successfully removed, there are certain risks when replacing the new device and welding. If the welding technology is not up to standard or the welding conditions are not suitable, it may also cause damage to the pads or pins, and may even affect other adjacent components.

[0004] The above shortcomings need to be improved. Summary of the invention

[0005] In order to solve the problem that the soldering pad of the PCBA board is easily damaged when the Flash device is replaced by the existing Flash device burner, the utility model provides a semi-automatic burner for flash devices.

[0006] The technical solution of the utility model is as follows:

[0007] A semi-automatic burner for flash devices comprises a main control chip, wherein the main control chip is communicatively connected with a connector and a test socket, the connector is detachably connected to a burner host computer, and the test socket is detachably connected to a flash device.

[0008] Furthermore, the connector is a USB connector.

[0009] Furthermore, the connector is a USB 2.0 connector.

[0010] Further, the connector includes 4 pins, the first pin is a VCC pin, the second pin is a D- pin, the third pin is a D+ pin, and the fourth pin is a GND pin, the first pin is connected to a 5V power supply, and the fourth pin is grounded;

[0011] The 31st pin of the main control chip is a DM pin, the 32nd pin is a DP pin, the 31st pin is electrically connected to the second pin, and the 32nd pin is electrically connected to the third pin.

[0012] Further, the test socket includes 8 pins, namely, pin 1, pin 2, pin 3, pin 4, pin 5, pin 6, pin 7 and pin 8, pin 3, pin 7 and pin 8 are connected to a 3.3V power supply, and pin 4 is grounded;

[0013] The 10th pin of the main control chip is the SPI_MISO pin, the 11th pin is the SPI_MOSI pin, the 12th pin is the SPI_CK pin, the 13th pin is the SPI_CS pin, the 10th pin is electrically connected to the 2nd pin, the 11th pin is electrically connected to the 5th pin, the 12th pin is electrically connected to the 6th pin, and the 13th pin is electrically connected to the 1st pin.

[0014] Furthermore, the third pin of the main control chip is the AVDD12 pin, the 17th pin is the DVDD12 pin, and the third pin and the 17th pin are both connected to a 1.2V power supply.

[0015] Furthermore, the 8th pin and the 30th pin of the main control chip are both AVDD33 pins, the 16th pin and the 25th pin are both DVDD33 pins, and the 8th pin, the 16th pin, the 25th pin and the 30th pin are all connected to a 3.3V power supply.

[0016] Furthermore, the 15th pin of the main control chip is a VBUS pin, and the 15th pin is connected to a 5V power supply.

[0017] Furthermore, the 8th, 16th, 25th and 30th pins of the main control chip and the 3rd, 7th and 8th pins of the test socket can be connected to a 3.3V power supply. The 15th pin of the main control chip and the first pin of the connector can be connected to a 5V power supply.

[0018] Furthermore, the 3rd pin, the 8th pin, the 15th pin, the 16th pin, the 25th pin and the 30th pin of the main control chip are all power pins, which are respectively connected to a filter circuit to stabilize the voltage.

[0019] Furthermore, the filtering circuit includes a filtering capacitor, one end of the filtering capacitor is connected to a corresponding pin of the main control chip, and the other end of the filtering capacitor is grounded.

[0020] Further, the 3rd pin is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C1; the 8th pin is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C2; the 15th pin is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C3; the 16th pin is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C4; the 25th pin is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C5; the 30th pin is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C6.

[0021] The utility model according to the above scheme has the beneficial effect that the utility model makes the replacement of flash devices convenient by setting the test socket, reduces the skill requirements for operators, and prevents the risk of damage to pads and pins caused by melting solder joints. Through the communication connection between the connector and the host computer, the connection and disassembly are convenient, and the host computer is convenient to replace and move. In addition, the burner can receive instructions from the host computer to achieve semi-automatic operation, further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of a circuit module of the utility model;

[0024] Figure 2 This is a circuit diagram of the connector part of the utility model;

[0025] Figure 3 This is the circuit diagram of the main control chip part of the utility model;

[0026] Figure 4 This is a circuit diagram of the test socket part of the utility model;

[0027] Figure 5 It is the overall circuit diagram of the utility model.

[0028] Among them, the reference numerals in the figure are: 1. main control chip; 2. connector; 3. test socket; 4. burning host computer; 5. flash device. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] It should be noted that when a component is referred to as being "fixed" or "set" or "connected" to another component, it may be located directly or indirectly on the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and should not be construed as limitations on the present technical solution. The terms "first", "second", etc. are only used for the convenience of description and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined. "Several" means one or more, unless otherwise clearly and specifically defined.

[0031] like Figure 1 and Figure 5 As shown, a semi-automatic burner for flash devices described in one embodiment of the utility model includes a main control chip 1, the main control chip 1 is communicatively connected with a connector 2 and a test socket 3, the connector 2 is detachably connected to a burning host computer 4, and the test socket 3 is detachably connected to a flash device 5.

[0032] When the semi-automatic burner is used to burn the flash device 5, the operator installs the flash device 5 to be burned on the test socket 3 of the burner, and the pins of the flash device 5 are in contact with the pins on the test socket 3. Since the test socket 3 is detachably connected to the flash device 5, it is simple and convenient to replace different flash devices 5 without worrying about damaging the pads on the PCBA board. Then, the user connects the burner to the burning host computer 4 through the connector 2. The burning host computer 4 is generally a computer installed with burning software, so that the burner is connected to the burning host computer 4. Open the burning software, the burning host computer 4 sends a signal to the main control chip 1, identifies the main control chip 1, and the burning host computer 4 communicates by handshake with the test socket 3 through the main control chip 1, and reads the information and capacity of the flash device 5 on the test socket 3. Then the burning work is carried out, the main control chip 1 receives the burning information from the burning host computer 4, and accurately writes the burning data into the flash device 5 through the test socket 3. A pressure cover is provided on the test socket 3. When the pins of the flash device 5 contact the pins on the test socket 3, the pressure cover is closed so that the pins of the flash device 5 are in stable contact with the pins on the test socket 3. After the burning is completed, the pressure cover is opened to take out the burned flash device 5.

[0033] The test socket 3 of the semi-automatic burner makes it easy to replace the flash device 5, reduces the skill requirements for the operator, and prevents the risk of damage to the pad and pin caused by melting the solder joint. Through the communication connection between the connector 2 and the burning host computer 4, the connection and disassembly are convenient, and it is convenient to use different burning host computers 4 for burning, which is convenient for moving the machine. In addition, the burner can receive the instructions of the burning host computer 4, realize semi-automatic operation, and further improve work efficiency.

[0034] like Figure 2 , Figure 3 and Figure 5 As shown, in a preferred embodiment, the connector 2 is a USB connector.

[0035] Preferably, the connector 2 is a USB 2.0 connector.

[0036] Specifically, the connector 2 includes 4 pins, the first pin is a VCC pin, the second pin is a D- pin, the third pin is a D+ pin, and the fourth pin is a GND pin. The first pin is connected to a 5V power supply, and the fourth pin is grounded.

[0037] The 31st pin of the main control chip 1 is a DM pin, the 32nd pin is a DP pin, the 31st pin is electrically connected to the second pin, and the 32nd pin is electrically connected to the third pin.

[0038] When using the semi-automatic burner to burn the flash device 5, first correctly connect the connector 2 to the USB port of the computer. The four pins of the USB connector are electrically connected to the computer, wherein the VCC pin is connected to the 5v power supply and the GND pin is grounded to form a stable power supply. Then, when the DM pin (i.e. the 31st pin) of the main control chip 1 is electrically connected to the D- pin of the connector 2, and the DP pin (i.e. the 32nd pin) is electrically connected to the D+ pin, a communication bridge between the main control chip 1 and the host computer is established. After the communication connection is established, the burner receives instructions from the host computer and executes the burning operation of the flash device 5. During the whole process, the USB2.0 connector ensures efficient data transmission with its high-speed and stable transmission characteristics, thereby ensuring the smooth progress of the burning operation.

[0039] The USB2.0 connector is used as the connector 2 of the semi-automatic flash device burner, which not only makes the connection more convenient, but also greatly improves the stability and speed of data transmission. As a widely used interface standard, the USB2.0 connector has good versatility and compatibility, so that the burner can be connected to a variety of different models of computers, meeting the diverse use requirements. At the same time, by connecting the corresponding pins, it is ensured that the communication between the main control chip 1 and the host computer is stable and reliable, which provides a strong guarantee for the smooth progress of the burning operation. In addition, the high-speed transmission characteristics of the USB2.0 connector also greatly improve the burning efficiency, making the burning work of the flash device 5 more efficient and convenient.

[0040] In addition to the USB2.0 connector, the connector 2 can also be a USB3.0 connector, a USB-C connector, etc. USB3.0 can provide a higher data transmission rate, which can be suitable for flash devices 5 that need to quickly burn a large amount of data, and can shorten the burning time and improve work efficiency. USB-C has the characteristics of reversible plugging, high-speed transmission and powerful expansion capabilities. It is the mainstream interface of modern electronic devices. Therefore, the use of a USB-C connector can make the burner compatible with more burning host computers 4. The above connectors 2 have their own characteristics, and the appropriate connector type can be selected according to the specific application scenario and requirements. Specifically, it can be selected according to factors such as data transmission rate, compatibility, cost and ease of use.

[0041] like Figures 3 to 5 As shown, in a preferred embodiment, the test socket 3 includes 8 pins, namely the 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th pin, the 6th pin, the 7th pin and the 8th pin, the 3rd pin, the 7th pin and the 8th pin are connected to the 3.3v power supply, and the 4th pin is grounded;

[0042] The 10th pin of the main control chip 1 is the SPI_MISO pin, the 11th pin is the SPI_MOSI pin, the 12th pin is the SPI_CK pin, the 13th pin is the SPI_CS pin, the 10th pin is electrically connected to the 2nd pin, the 11th pin is electrically connected to the 5th pin, the 12th pin is electrically connected to the 6th pin, and the 13th pin is electrically connected to the 1st pin.

[0043] When the semi-automatic burner is used to burn the flash device 5, the flash device 5 is correctly installed on the test socket 3 so that the pins of the flash device 5 are in close contact with the corresponding pins of the test socket 3. Subsequently, the 3rd pin, the 7th pin and the 8th pin on the test socket 3 are connected to the 3.3v power supply to provide a stable operating voltage for the flash device 5, and the 4th pin is grounded to ensure the stability of the circuit. At the same time, the main control chip 1 establishes a connection with the test socket 3 through its SPI interface, wherein the SPI_MISO pin (i.e. the 10th pin) is electrically connected to the 2nd pin of the test socket 3 for receiving data from the flash device 5; the SPI_MOSI pin (the 11th pin) is connected to the 5th pin for sending data to the flash device 5; the SPI_CK pin (the 12th pin) is connected to the 6th pin to provide a clock signal; the SPI_CS pin (the 13th pin) is connected to the 1st pin for chip selection control. Then, the main control chip 1 can communicate with the flash device 5 through the SPI interface to perform the burning operation.

[0044] The semi-automatic burner realizes efficient and stable burning of the flash device 5 by connecting the test socket 3 and the main control chip 1 through the SPI interface. The pin layout on the test socket 3 is reasonable, which can ensure that the flash device 5 obtains stable power supply and grounding during operation, thereby improving the reliability of the burning process. At the same time, the main control chip 1 closely cooperates with the test socket 3 through the SPI interface to realize fast data transmission and precise control, greatly improving the burning efficiency and accuracy.

[0045] like Figure 3 As shown, in a preferred embodiment, the third pin of the main control chip 1 is the AVDD12 pin, the 17th pin is the DVDD12 pin, and the third pin and the 17th pin are both connected to a 1.2V power supply.

[0046] The 8th and 30th pins of the main control chip 1 are both AVDD33 pins, the 16th and 25th pins are both DVDD33 pins, and the 8th, 16th, 25th and 30th pins are all connected to a 3.3v power supply.

[0047] The 15th pin of the main control chip 1 is the VBUS pin, and the 15th pin is connected to a 5V power supply.

[0048] The 3rd pin (AVDD12) and the 17th pin (DVDD12) of the main control chip 1 are connected to the 1.2v power supply respectively to provide a stable low voltage for the analog and digital circuits inside the chip. Then, the 8th pin and the 30th pin (both AVDD33), as well as the 16th pin and the 25th pin (both DVDD33) are connected to the 3.3v power supply to ensure that the chip can work stably in the high voltage area. Finally, the 15th pin (VBUS) is connected to the 5v power supply to provide enough driving voltage for the main control chip 1. After the power connection is completed, the main control chip 1 can start to work normally, and transmit and control data with the test socket 3, the connector 2 and other components through other pins to realize the burning operation of the flash device 5.

[0049] This embodiment provides a variety of power supplies with different voltages for the main control chip 1, ensuring that the chip can obtain stable and reliable power support in different working areas. The multi-level and refined power supply improves the working stability of the chip and optimizes energy consumption performance. In practical applications, this design enables the flash device semi-automatic burner to perform the burning task more efficiently, improves the burning success rate and production efficiency, and also reduces the failure rate and maintenance cost of the equipment.

[0050] like Figure 5 As shown, in a preferred embodiment, the 8th, 16th, 25th and 30th pins of the main control chip 1 and the 3rd, 7th and 8th pins of the test socket 3 can be connected to a 3.3v power supply. The 15th pin of the main control chip 1 and the first pin of the connector 2 can be connected to a 5v power supply.

[0051] The power connection mode in this embodiment simplifies the circuit design of the burner and improves the utilization efficiency of the power supply. By sharing the same 3.3v power supply for the main control chip 1, the test socket 3 and the connector 2, the number of power lines is reduced, the complexity of power management is reduced, and the structure of the burner is made more compact. At the same time, the sharing of the 5v power supply also achieves a similar effect. In practical applications, this design can effectively reduce the manufacturing cost and maintenance cost of the burner.

[0052] like Figure 3 As shown, in a preferred embodiment, the 3rd pin, the 8th pin, the 15th pin, the 16th pin, the 25th pin and the 30th pin of the main control chip 1 are all power pins, which are respectively connected to filter circuits for stabilizing voltage.

[0053] Specifically, the filter circuit includes a filter capacitor, one end of the filter capacitor is connected to the corresponding pin of the main control chip 1, and the other end of the filter capacitor is grounded.

[0054] Pin 3 is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C1; pin 8 is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C2; pin 15 is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C3; pin 16 is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C4; pin 25 is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C5; pin 30 is connected to the first filter circuit, and the first filter capacitor in the first filter circuit is C6.

[0055] One end of the filter capacitor in the filter circuit is connected to the power pin corresponding to the main control chip 1, and the other end is grounded. When the power supply is supplied to the main control chip 1, the filter capacitor will start to work and filter the input voltage to ensure the stability of the working voltage of the main control chip 1. Specifically, pins 3, 8, 15, 16, 25 and 30 are connected to the C1, C2, C3, C4, C5 and C6 filter capacitors respectively, and these capacitors work together to maintain the stability of the voltage.

[0056] In this embodiment, by setting a filter circuit at the power pin of the main control chip 1, the influence of power supply noise and ripple on the working stability of the chip can be significantly reduced. The filter capacitor can effectively absorb and eliminate the unstable factors in the voltage, provide a stable power supply for the main control chip 1, improve the overall working stability of the burner, and extend the service life of the main control chip 1.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A semi-automatic flash device burner, characterized in that: The invention comprises a main control chip, wherein the main control chip is communicatively connected with a connector and a test socket, the connector can be detachably connected to a burning host computer, and the test socket can be detachably connected to a flash device.

2. A semi-automatic flash device burner according to claim 1, characterized in that: The connector is a USB connector.

3. A semi-automatic flash device burner according to claim 2, characterized in that: The connector is a USB 2.0 connector.

4. A semi-automatic flash device burner according to claim 3, characterized in that: The connector includes 4 pins, the first pin is a VCC pin, the second pin is a D- pin, the third pin is a D+ pin, and the fourth pin is a GND pin. The first pin is connected to a 5V power supply, and the fourth pin is grounded. The 31st pin of the main control chip is a DM pin, the 32nd pin is a DP pin, the 31st pin is electrically connected to the second pin, and the 32nd pin is electrically connected to the third pin.

5. A semi-automatic flash device burner according to any one of claims 1-4, characterized in that: The test socket includes 8 pins, namely the 1st pin, the 2nd pin, the 3rd pin, the 4th pin, the 5th pin, the 6th pin, the 7th pin and the 8th pin, the 3rd pin, the 7th pin and the 8th pin are connected to the 3.3V power supply, and the 4th pin is grounded; The 10th pin of the main control chip is the SPI_MISO pin, the 11th pin is the SPI_MOSI pin, the 12th pin is the SPI_CK pin, the 13th pin is the SPI_CS pin, the 10th pin is electrically connected to the 2nd pin, the 11th pin is electrically connected to the 5th pin, the 12th pin is electrically connected to the 6th pin, and the 13th pin is electrically connected to the 1st pin.

6. A semi-automatic flash device burner according to any one of claims 1-4, characterized in that: The third pin of the main control chip is the AVDD12 pin, the 17th pin is the DVDD12 pin, and both the third pin and the 17th pin are connected to a 1.2V power supply.

7. A semi-automatic flash device burner according to any one of claims 1-4, characterized in that: The 8th pin and the 30th pin of the main control chip are both AVDD33 pins, the 16th pin and the 25th pin are both DVDD33 pins, and the 8th pin, the 16th pin, the 25th pin and the 30th pin are all connected to a 3.3V power supply.

8. A semi-automatic flash device burner according to any one of claims 1-4, characterized in that: The 15th pin of the main control chip is the VBUS pin, and the 15th pin is connected to a 5V power supply.

9. A semi-automatic flash device burner according to any one of claims 1-4, characterized in that: The 3rd pin, the 8th pin, the 15th pin, the 16th pin, the 25th pin and the 30th pin of the main control chip are all connected with a filter circuit.

10. A semi-automatic flash device burner according to claim 9, characterized in that: The filter circuit comprises a filter capacitor, one end of the filter capacitor is connected to a corresponding pin of the main control chip, and the other end of the filter capacitor is grounded.

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