CN212723980U

CN212723980U - Multichannel burner

Info

Publication number: CN212723980U
Application number: CN202021344222.2U
Authority: CN
Inventors: 王锐; 肖夕; 莫军; 李建军; 王亚波
Original assignee: Unicmicro Guangzhou Co ltd
Current assignee: Unicmicro Guangzhou Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2021-03-16
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a multichannel burner, which comprises a PCB board, a USB-to-serial port module, a main control chip and a multi-path serial port module, wherein the USB-to-serial port module, the main control chip and the multi-path serial port module are positioned on the PCB board; the input end of the USB serial port conversion module is used for being connected to an upper computer, the output end of the USB serial port conversion module is connected to the input end of the main control chip, and the output end of the main control chip is respectively connected to the multi-path serial port module; the multi-path serial port module is used for being connected to a target chip to be burned. The utility model discloses can realize simultaneously to the burning record of a plurality of target chips, provide burning record efficiency greatly.

Description

Multichannel burner

Technical Field

The utility model relates to a chip burns record field, especially relates to a multichannel burns record ware.

Background

The chip burning is a process of burning a program in an upper computer into a target chip. Generally, when chip burning is performed, a predetermined burner is needed between an upper computer and a target chip to realize sending of a burning program and management of a burning process.

In the prior art, a burner is generally a single-channel burner, which can only burn one target chip at a time, and has low burning efficiency, and cannot meet the requirement of batch burning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to above-mentioned problem and not enough, provide a multichannel burns record ware, can support the multichannel to burn record in step, greatly increased burns record efficiency.

The embodiment of the utility model provides a multichannel burner, including PCB board and USB that is located on the PCB board changes serial port module, main control chip, multichannel serial port module; the input end of the USB serial port conversion module is used for being connected to an upper computer, the output end of the USB serial port conversion module is connected to the input end of the main control chip, and the output end of the main control chip is respectively connected to the multi-path serial port module; the multi-path serial port module is used for being connected to a target chip to be burned.

Preferably, the device further comprises a plurality of channel selector switches, each serial port module comprises a first sub-serial port and a second sub-serial port, and a controlled end of each channel selector switch is connected to the control interface of the main control chip; the input end of the channel selector switch is connected to the output end of the main control chip; two switching ends of the channel switching switch are respectively connected with the first sub serial port and the second sub serial port so as to control one of the first sub serial port and the second sub serial port to be connected to the main control chip.

Preferably, the model of the master control chip is STM32F 429.

Preferably, the intelligent control system further comprises a buzzer, and the buzzer is connected with the main control chip.

Preferably, the LED lamp is further included and connected with the main control chip.

Preferably, the intelligent control system further comprises a display screen, and the display screen is connected with the main control chip.

Preferably, the USB interface module further comprises a power supply, and the power supply is connected to the USB interface module.

Preferably, the mobile terminal further comprises a mode switching key, and the mode switching key is connected with the main control chip.

Preferably, the chip also comprises a JTAG programming port, and the JTAG programming port is connected with the main control chip.

Preferably, the system also comprises a FLASH, and the FLASH is connected with the main control chip.

In the embodiment, one main control chip is connected to the plurality of serial port modules, so that multichannel synchronous burning is realized, and burning efficiency is greatly improved.

Drawings

Fig. 1 is a schematic structural diagram of a multi-channel recorder according to a first embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, a first embodiment of the present invention provides a multi-channel recorder, which includes a PCB 10, and a USB to serial port module 20, a main control chip 30, and a multi-channel serial port module 40 located on the PCB 10; the input end of the USB serial-to-serial port module 20 is used for being connected to an upper computer, the output end of the USB serial-to-serial port module 40 is connected to the input end of the main control chip 30, and the output end of the main control chip 30 is connected to the multiple serial-to-serial port modules 40 respectively; the multi-path serial port module 40 is used for connecting to a target chip to be burned.

In this embodiment, the input end of the USB to serial port module 20 is connected to the upper computer (the upper computer is generally a PC computer) through a USB data line, when the burning is to be performed, the burning command issued by the upper computer is sent to the USB to serial port module 20 through the USB data line, the USB to serial port module 20 sends the burning command to the main control chip 30, the main control chip 30 sends the burning command to the multiple serial port module 40 at the same time, and then the burning command is sent to each connected target chip through the serial port module 40, so that the target chip is burned at the same time.

Particularly, in this embodiment, the model of the main control chip 30 is STM32F429, and the main control chip 30 may be connected to each USB to serial port module 20 through a UART interface to implement sending of the burning command.

In summary, in the multi-channel recorder provided in this embodiment, one main control chip 30 is connected to the plurality of serial port modules 40, so that multi-channel synchronous recording is realized, and the recording efficiency is greatly increased.

To facilitate an understanding of the present invention, some preferred embodiments of the present invention are described further below.

In the first embodiment, the number of target chips capable of being burned simultaneously is limited to the number of UART interfaces on the main control chip 30, for example, if the number of UART interfaces on the main control chip 30 is 7, then it is normal that at most 7 target chips can be burned simultaneously. Of course, in principle, the number of UART interfaces may be increased according to actual needs, but in this way, there are more limitations in practical situations. In order to further improve the recording efficiency, the present embodiment improves the following steps based on the first embodiment:

in this embodiment, the serial port module further includes a plurality of channel switches 50, each serial port module 40 includes a first sub-serial port 41 and a second sub-serial port 42, and a controlled end of each channel switch 50 is connected to a control interface of the main control chip 30; the input end of the channel switch 50 is connected to the output end of the main control chip 30 through a UART; the two switching ends of the channel switch 50 are respectively connected to the first sub-serial port 41 and the second sub-serial port 42 to control one of the first sub-serial port 41 and the second sub-serial port 42 to be connected to the main control chip 30.

The control interface of the main control chip 30 may be a GPIO port, and the GPIO port may send a control command to the channel switch 50, so that the channel switch 50 may be switched to connect the first sub-serial port 41 to the main control chip 30 or connect the second sub-serial port 42 to the main control chip 30.

In the specific burning process, assuming that all the first sub-serial ports 41 and the second sub-serial ports 42 are connected to the target chip and all the first sub-serial ports 41 are initially communicated with the main control chip 30, the main control chip 30 firstly burns the target chip connected to the first sub-serial ports 41 when receiving the burning command. And then the channel switch 50 is controlled by the GPIO port, so that all the second sub-serial ports 42 are communicated with the main control chip 30, and then the target chip connected with the second sub-serial ports 42 is burned, thus greatly improving the burning efficiency.

The utility model discloses an in one embodiment, optionally, multichannel burns record ware still includes bee calling organ 60, LED pilot lamp 70 and display screen 80, bee calling organ 60, LED pilot lamp 70 and display screen 80 all are connected to main control chip 30.

The buzzer 60 can give an alarm when abnormality occurs in the burning process. The LED designation light 70 may be used to indicate various states of the multi-channel burner, such as power status, online status, offline status, etc. The display screen 80 can be used for displaying various states of the multi-channel burner, such as a power state, an online state, an offline state and the like, and can also be used for displaying information such as the burning progress and the like.

In an embodiment of the present invention, optionally, the present invention further includes a power source 91 and a mode switching key 92, wherein the power source 91 is connected to the USB-to-serial port module 20 to provide electric energy required by the operation of the multi-channel recorder; the mode switching key 92 is connected to the main control chip 30 to implement switching of working modes, such as off-line mode and on-line mode.

In an embodiment of the present invention, optionally, the system further includes a JTAG programming port and a FLASH, wherein the JTAG programming port and the FLASH are connected to the main control chip 30, the JTAG programming port provides a JTAG programming function, and the FLASH provides a storage space necessary for operation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A multi-channel burner is characterized by comprising a PCB (printed circuit board), and a USB (universal serial bus) to serial port module, a main control chip and a multi-channel serial port module which are positioned on the PCB; the input end of the USB serial port conversion module is used for being connected to an upper computer, the output end of the USB serial port conversion module is connected to the input end of the main control chip, and the output end of the main control chip is respectively connected to the multi-path serial port module; the multi-path serial port module is used for being connected to a target chip to be burned.

2. The multi-channel burner of claim 1, further comprising a plurality of channel switches, wherein each serial port module comprises a first sub-serial port and a second sub-serial port, and a controlled end of each channel switch is connected to the control interface of the main control chip; the input end of the channel selector switch is connected to the output end of the main control chip; two switching ends of the channel switching switch are respectively connected with the first sub serial port and the second sub serial port so as to control one of the first sub serial port and the second sub serial port to be connected to the main control chip.

3. The multi-channel burner of claim 1, wherein the model of the main control chip is STM32F 429.

4. The multi-channel burner of claim 1, further comprising a buzzer, wherein the buzzer is connected with the main control chip.

5. The multi-channel burner of claim 1, further comprising an LED indicator light connected to the main control chip.

6. The multi-channel burner of claim 1, further comprising a display screen, wherein the display screen is connected to the main control chip.

7. The multi-channel burner of claim 1, further comprising a power source connected to the USB to serial port module.

8. The multi-channel burner of claim 1, further comprising a mode switch key, wherein the mode switch key is connected to the main control chip.

9. The multi-channel burner of claim 1, further comprising a JTAG write port, wherein the JTAG write port is connected to the main control chip.

10. The multi-channel burner of claim 1, further comprising a FLASH, the FLASH being connected to the main control chip.