Finished circuit board and electronic equipment

Abstract

The embodiment of the utility model provides a finished circuit board and electronic equipment, and relates to the technical field of finished circuit board debugging. The finished circuit board comprises a circuit board, a universal serial bus to serial port chip, a universal serial bus connector, a first processor and a second processor. The universal serial bus to serial port chip, the universal serial bus connector, the first processor and the second processor are all arranged on the circuit board, and the first processor and the second processor are electrically connected with the same universal serial bus connector through the universal serial bus to serial port chip. Therefore, the space occupied by the device for electrically connecting the processor and the debugging equipment on the circuit board is small.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of finished circuit board debugging, and in particular to a finished circuit board and an electronic device. Background Art

[0002] In electronic devices such as servers and computers, finished circuit boards are often included. The finished circuit boards include circuit boards and devices arranged on the circuit boards. After the devices are assembled on the circuit boards, the finished circuit boards need to be debugged.

[0003] The finished circuit board may include a plurality of processors arranged on the circuit board. When debugging the finished circuit board, it is necessary to electrically connect the debugging device to the processors on the circuit board, and debug the processors by inputting signals to the processors through the debugging device.

[0004] In the related art, the finished circuit board may also include multiple cluster communication port (COM) connectors corresponding one-to-one to the multiple processors and multiple level conversion chips corresponding one-to-one to the multiple processors. The serial port connectors and the level conversion chips are both arranged on the circuit board. Each processor is electrically connected to the corresponding serial port connector through the corresponding level conversion chip. The serial port connector is used to be electrically connected to the debugging device, so that the debugging device can interact with the processor through signals.

[0005] However, in the related art, the device for electrically connecting the processor to the debugging device occupies a large space on the circuit board, resulting in a large size of the finished circuit board. Utility Model Content

[0006] The embodiments of the present application provide a finished circuit board and an electronic device, which can enable a device used to electrically connect a processor to a debugging device to occupy less space on the circuit board.

[0007] In one aspect, an embodiment of the present application provides a finished circuit board, which includes a circuit board, a universal serial bus to serial port chip, a universal serial bus connector, a first processor, and a second processor. The universal serial bus to serial port chip, the universal serial bus connector, the first processor, and the second processor are all arranged on the circuit board, and the first processor and the second processor are electrically connected to the same universal serial bus connector through the universal serial bus to serial port chip.

[0008] In the embodiment of the present application, the size of the universal serial bus connector is relatively small, and multiple processors can be electrically connected to the debugging device through the same universal serial bus connector to perform signal interaction, so that the device used to electrically connect the processor to the debugging device occupies less space on the circuit board, thereby helping to reduce the size of the finished circuit board. In addition, by connecting a connector on the debugging device to a universal serial bus connector, it is possible to achieve electrical connection of the debugging device with multiple processors at the same time. When it is necessary to electrically connect the debugging device with multiple processors at the same time, the requirements for the debugging device and the device connecting the debugging device to the finished circuit board are relatively low. In addition, the debugging device can perform signal interaction with multiple processors through a universal serial bus connector, and multiple processors can be debugged in parallel at the same time, which is conducive to improving the efficiency of debugging the finished circuit board.

[0009] In a possible implementation, the USB to serial port chip is a USB to multiple serial port chip. The first processor and the second processor are electrically connected to the same USB to multiple serial port chip, and the USB to multiple serial port chip is electrically connected to the USB connector.

[0010] In a possible implementation, the universal serial bus to multiple serial port chip has a first serial port signal terminal group and a second serial port signal terminal group. The first serial port signal terminal group is electrically connected to the first processor, and the second serial port signal terminal group is electrically connected to the second processor.

[0011] In a possible implementation, the circuit board has a first signal wiring group, a second signal wiring group, a first electrical connection structure, a second electrical connection structure, a third electrical connection structure, and a fourth electrical connection structure. The first electrical connection structure, the second electrical connection structure, the third electrical connection structure, and the fourth electrical connection structure are located on the surface of the circuit board, and the two ends of the first signal wiring group are electrically connected to the first electrical connection structure and the second electrical connection structure, respectively, and the two ends of the second signal wiring group are electrically connected to the third electrical connection structure and the fourth electrical connection structure, respectively. The first processor is fixed to and electrically connected to the first electrical connection structure, and the first serial port signal terminal group is fixed to and electrically connected to the second electrical connection structure. The second processor is fixed to and electrically connected to the third electrical connection structure, and the second serial port signal terminal group is fixed to and electrically connected to the fourth electrical connection structure.

[0012] In a possible implementation, the first serial port signal terminal group includes a first serial port signal sending terminal and a first serial port signal receiving terminal, the first serial port signal sending terminal is electrically connected to the signal receiving end of the first processor, and the first serial port signal receiving terminal is electrically connected to the signal sending end of the first processor. The second serial port signal terminal group includes a second serial port signal sending terminal and a second serial port signal receiving terminal, the second serial port signal sending terminal is electrically connected to the signal receiving end of the second processor, and the second serial port signal receiving terminal is electrically connected to the signal sending end of the second processor.

[0013] In a possible implementation, the USB-to-UART chip has a first USB signal terminal set, and the USB connector has a second USB signal terminal set, which is electrically connected to the first USB signal terminal set.

[0014] In a possible implementation manner, the USB connector further has a third USB signal terminal group, and the third USB signal terminal group is electrically connected to the first USB signal terminal group.

[0015] In a possible implementation, the circuit board has a third signal wiring group, a fifth electrical connection structure, and a sixth electrical connection structure. The fifth electrical connection structure and the sixth electrical connection structure are located on the surface of the circuit board, and both ends of the third signal wiring group are electrically connected to the fifth electrical connection structure and the sixth electrical connection structure, respectively. The first universal serial bus signal terminal group is fixed and electrically connected to the fifth electrical connection structure, and the second universal serial bus signal terminal group and the third universal serial bus signal terminal group are fixed and electrically connected to the sixth electrical connection structure.

[0016] In a possible implementation, the universal serial bus connector is a Type-C connector.

[0017] Another aspect of the present application embodiment provides an electronic device, comprising a housing and a finished circuit board in any of the above embodiments. The finished circuit board is arranged in the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of an electronic device provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of debugging a finished circuit board provided in an embodiment of the present application;

[0020] Figure 3 A circuit diagram of a finished circuit board provided in an embodiment of the present application;

[0021] Figure 4 A schematic diagram of a finished circuit board provided in an embodiment of the present application;

[0022] Figure 5 A schematic diagram of another finished circuit board provided in an embodiment of the present application;

[0023] Figure 6 A schematic diagram of another finished circuit board provided in an embodiment of the present application;

[0024] Figure 7 A schematic diagram of another finished circuit board provided in an embodiment of the present application;

[0025] Figure 8 A schematic diagram of another finished circuit board provided in an embodiment of the present application.

[0026] Description of reference numerals:

[0027] 10. Finished circuit board; 20. Debugging equipment; 21. Debugging device; 22. Second universal serial bus connector; 23. Second circuit board; 30. Connecting wire; 40. Housing;

[0028] 100. a first circuit board;

[0029] 200, a universal serial bus to serial port chip; 200a, a first universal serial bus to serial port chip; 200b, a second universal serial bus to serial port chip;

[0030] 210, first serial port signal terminal group; 211, first serial port signal sending terminal; 212, first serial port signal receiving terminal;

[0031] 220, second serial port signal terminal group; 221, second serial port signal sending terminal; 222, second serial port signal receiving terminal;

[0032] 230, a first universal serial bus signal terminal group; 231, a first positive signal terminal; 232, a first negative signal terminal;

[0033] 300. A first universal serial bus connector;

[0034] 310, second universal serial bus signal terminal group; 311, second positive signal terminal; 312, second negative signal terminal;

[0035] 320, a third universal serial bus signal terminal group; 321, a third positive signal terminal; 322, a third negative signal terminal;

[0036] 400. a first processor;

[0037] 500. a second processor;

[0038] 600, a third processor;

[0039] 710, first signal routing group; 711, first serial port signal routing; 712, second serial port signal routing;

[0040] 720, second signal routing group; 721, third serial port signal routing; 722, fourth serial port signal routing;

[0041] 730, third signal routing group; 731, positive signal routing; 732, negative signal routing;

[0042] 740, fourth signal routing group;

[0043] 810, first electrical connection structure; 811, first sub-electrical connection structure; 812, second sub-electrical connection structure;

[0044] 820, second electrical connection structure; 821, third sub-electrical connection structure; 822, fourth sub-electrical connection structure;

[0045] 830, third electrical connection structure; 831, fifth sub-electrical connection structure; 832, sixth sub-electrical connection structure;

[0046] 840, fourth electrical connection structure; 841, seventh sub-electrical connection structure; 842, eighth sub-electrical connection structure;

[0047] 850, fifth electrical connection structure; 851, ninth sub-electrical connection structure; 852, tenth sub-electrical connection structure;

[0048] 860, the sixth electrical connection structure; 861, the eleventh sub-electrical connection structure; 862, the twelfth sub-electrical connection structure; 863, the thirteenth sub-electrical connection structure; 864, the fourteenth sub-electrical connection structure. DETAILED DESCRIPTION

[0049] The terms used in the implementation method part of this application are only used to explain the specific embodiments of this application, and are not intended to limit this application. The implementation method of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0050] An embodiment of the present application provides an electronic device, which may include but is not limited to a computer, a server, etc.

[0051] Figure 1 A schematic diagram of an electronic device provided in an embodiment of the present application.

[0052] like Figure 1 As shown, in an embodiment of the present application, the electronic device may include a housing 40 and a finished circuit board 10 , wherein the finished circuit board 10 is disposed in the housing 40 , and the housing 40 may protect the finished circuit board 10 .

[0053] Figure 2A schematic diagram of debugging a finished circuit board provided in an embodiment of the present application.

[0054] In the embodiment of the present application, the finished circuit board 10 may include a first circuit board 100 , on which a plurality of processors are fixedly disposed.

[0055] After the components such as the processor that need to be arranged on the first circuit board 100 are assembled on the first circuit board 100, the finished circuit board 10 needs to be debugged. When debugging the finished circuit board 10, it is necessary to electrically connect the debugging device 20 to the processor on the first circuit board 100, and debug the processor by inputting signals to the processor through the debugging device 20.

[0056] In the related art, the finished circuit board may also include multiple cluster communication port (COM) connectors corresponding to multiple processors one by one and multiple level conversion chips corresponding to multiple processors one by one, the cluster communication port connector and the level conversion chip are both arranged on the first circuit board, each processor is electrically connected to the corresponding cluster communication port connector through the corresponding level conversion chip, and the cluster communication port connector is used to electrically connect to the debugging device, so that the debugging device can perform signal interaction with the processor. Specifically, after the debugging device is connected to the cluster communication port connector, the debugging device can send a debugging signal to the cluster communication port connector, and after receiving the debugging signal, the cluster communication port connector sends the debugging signal to the level conversion chip, and the level conversion chip converts the level of the received debugging signal to a level that the processor can receive and then sends it to the processor, so that the processor can be debugged by sending the debugging signal to the processor.

[0057] However, the size of the serial port connector is relatively large, and the number of serial port connectors required is relatively large, resulting in the device for electrically connecting the processor to the debugging device occupying a large space on the first circuit board, making the size of the finished circuit board relatively large. In addition, if the debugging device needs to be electrically connected to multiple processors at the same time, the debugging device needs to have multiple connectors for connecting to multiple serial port connectors respectively, or use a one-port to multi-port expander to connect the debugging device to multiple serial port connectors, resulting in higher requirements for the debugging device or higher requirements for the device for connecting the finished circuit board to the debugging device.

[0058] like Figure 2As shown, based on this, in the embodiment of the present application, the finished circuit board 10 also includes a universal serial bus (USB) to serial port chip 200, a first universal serial bus connector 300 and a plurality of processors. The universal serial bus to serial port chip 200, the first universal serial bus connector 300 and the plurality of processors are all arranged on the first circuit board 100, and the plurality of processors are electrically connected to the same first universal serial bus connector 300 through the universal serial bus to serial port chip 200. The first universal serial bus connector 300 electrically connected to the plurality of processors is used to be electrically connected to the debugging device 20, so that the debugging device 20 can perform signal interaction with the plurality of processors through the first universal serial bus connector 300 electrically connected to the plurality of processors.

[0059] It should be noted that, in the present application, a plurality refers to a number greater than or equal to 2.

[0060] For ease of description, we can take two of the multiple processors as an example for illustration. Specifically, the multiple processors include a first processor 400 and a second processor 500. The first processor 400 and the second processor 500 are electrically connected to the same first universal serial bus connector 300 through a universal serial bus to serial port chip 200. The first universal serial bus connector 300 electrically connected to the first processor 400 and the second processor 500 is used to electrically connect to a debugging device 20, so that the debugging device 20 can perform signal interaction with the first processor 400 and the second processor 500 through the first universal serial bus connector 300.

[0061] When the first processor 400 and the second processor 500 need to be debugged, the first universal serial bus connector 300 electrically connected to the first processor 400 and the second processor 500 can be electrically connected to the debugging device 20, and the debugging device 20 can send a debugging signal to the electrically connected first universal serial bus connector 300. After receiving the debugging signal, the first universal serial bus connector 300 sends the debugging signal to the universal serial bus to serial port chip 200. The universal serial bus to serial port chip 200 converts the received debugging signal from a universal serial bus signal to a serial port signal and sends it to the first processor 400 and the second processor 500. The first processor 400 and the second processor 500 perform debugging by receiving the debugging signal converted into a serial port signal.

[0062] In this way, the size of the first universal serial bus connector 300 is small, and multiple processors can be electrically connected to the debugging device 20 through the same first universal serial bus connector 300 to perform signal interaction, so that the device used to electrically connect the processor to the debugging device 20 occupies less space on the first circuit board 100, thereby helping to reduce the size of the finished circuit board 10. In addition, by connecting a connector on the debugging device 20 to a first universal serial bus connector 300, it is possible to achieve electrical connection between the debugging device 20 and multiple processors at the same time. When it is necessary to electrically connect the debugging device 20 to multiple processors at the same time, the requirements for the debugging device 20 and the device connecting the debugging device 20 to the finished circuit board 10 are relatively low. In addition, the debugging device 20 can perform signal interaction with multiple processors through a first universal serial bus connector 300, and multiple processors can be debugged in parallel at the same time, which helps to improve the efficiency of debugging the finished circuit board 10.

[0063] The level of the serial port signal output by the USB-to-serial port chip 200 is a level that can be received by the processor.

[0064] Exemplarily, any one of the processors may include but is not limited to a baseboard management controller (BMC), a microcontroller unit (MCU), a complex programmable logic device (CPLD), etc. For example, the first processor 400 may be a baseboard management controller, and the second processor 500 may be a programmable logic device.

[0065] Exemplarily, the first USB connector 300 may include but is not limited to a USB 2.0 connector, a USB 3.0 connector, etc.

[0066] Exemplarily, the debugging device 20 may include a second circuit board 23, a debugging device 21, and a second universal serial bus connector 22. The debugging device 21 and the second universal serial bus connector 22 are both arranged on the second circuit board 23 and electrically connected to the second circuit board 23. The debugging device 21 may be electrically connected to the second universal serial bus connector 22 through the second circuit board 23. The driver of the universal serial bus to serial port chip 200 is installed in the debugging device 21. When the finished circuit board 10 needs to be debugged, the second universal serial bus connector 22 is used to be electrically connected to the first universal serial bus connector 300 through the connecting line 30. After the finished circuit board 10 is powered on, the debugging device 21 is used to send a debugging signal to the second universal serial bus connector 22. The second universal serial bus connector 22 is used to transmit the debugging signal to the first universal serial bus connector 300 through the connecting line 30, so that the first processor 400 and the second processor 500 can be debugged.

[0067] In some possible implementations, the USB to UART chip 200 is a USB to multiple UART chip. The first processor 400 and the second processor 500 are electrically connected to the same USB to multiple UART chip, and the USB to multiple UART chip is electrically connected to the first USB connector 300.

[0068] The USB to multi-serial port chip can convert the USB signal from the first USB connector 300 into a multi-channel serial port signal and send it to multiple electrically connected processors.

[0069] In this way, multiple processors can be electrically connected to the first universal serial bus connector 300 through the same universal serial bus to serial port chip 200, which can reduce the number of universal serial bus to serial port chips 200 and wiring, and make the device used to electrically connect the processor to the debugging device 20 occupy less space on the first circuit board 100.

[0070] Exemplarily, the USB to multi-serial port chip may be a USB to two-serial port chip, a USB to four-serial port chip, or a USB to eight-serial port chip, etc. For example, the USB to multi-serial port chip may include but is not limited to a CP2105 chip, a CH340 chip, a CH9344 chip, a CH348 chip, etc.

[0071] Figure 3 A circuit diagram of a finished circuit board provided in an embodiment of the present application.

[0072] like Figure 3As shown, in some possible implementations, the universal serial bus to multi-serial port chip has a first serial port signal terminal set 210 and a second serial port signal terminal set 220. The first serial port signal terminal set 210 is electrically connected to the first processor 400, and the second serial port signal terminal set 220 is electrically connected to the second processor 500.

[0073] In this way, the USB to multi-serial port chip is conveniently electrically connected to the first processor 400 and the second processor 500, so that the USB to multi-serial port chip can easily interact with the first processor 400 and the second processor 500 via serial port signals.

[0074] Figure 4 A schematic diagram of a finished circuit board provided in an embodiment of the present application.

[0075] like Figure 4 As shown, and see Figure 3 In some possible implementations, the first circuit board 100 has a first signal wiring group 710, a second signal wiring group 720, a first electrical connection structure 810, a second electrical connection structure 820, a third electrical connection structure 830, and a fourth electrical connection structure 840. The first electrical connection structure 810, the second electrical connection structure 820, the third electrical connection structure 830, and the fourth electrical connection structure 840 are located on the surface of the first circuit board 100, and the two ends of the first signal wiring group 710 are electrically connected to the first electrical connection structure 810 and the second electrical connection structure 820, respectively, and the two ends of the second signal wiring group 720 are electrically connected to the third electrical connection structure 830 and the fourth electrical connection structure 840, respectively. The first processor 400 is fixed to and electrically connected to the first electrical connection structure 810, and the first serial port signal terminal group 210 is fixed to and electrically connected to the second electrical connection structure 820. The second processor 500 is fixed to and electrically connected to the third electrical connection structure 830, and the second serial port signal terminal group 220 is fixed to and electrically connected to the fourth electrical connection structure 840. The first signal wiring group 710 and the second signal wiring group 720 are both wirings formed on the first circuit board 100 .

[0076] In this way, the first processor 400 and the second processor 500 are electrically connected to the USB-to-serial port chip 200 through the first circuit board 100, and it is convenient for the first processor 400 and the second processor 500 to be electrically connected to the USB-to-serial port chip 200. In addition, the first processor 400 and the second processor 500 are both connected to the USB-to-serial port chip 200 through the wiring of the first circuit board 100, which can reduce the arrangement of cables in the housing 40 and save space in the housing 40.

[0077] In some examples, the first electrical connection structure 810 is a pad structure, and the first processor 400 is soldered to the first electrical connection structure 810 .

[0078] In this way, the first processor 400 is firmly connected to the first electrical connection structure 810, and the electrical connection has good stability.

[0079] In some other examples, the first electrical connection structure 810 is a conductive via structure, and the first processor 400 has pins for being inserted into the first electrical connection structure 810 and electrically connected to the first electrical connection structure 810 .

[0080] In some examples, the second electrical connection structure 820 is a pad structure, and the first serial port signal terminal group 210 is welded to the second electrical connection structure 820 .

[0081] In this way, the first serial port signal terminal group 210 is firmly connected to the second electrical connection structure 820, and the electrical connection has good stability.

[0082] In some other examples, the second electrical connection structure 820 is a conductive via structure, and the first serial port signal terminal set 210 is plugged into the second electrical connection structure 820 .

[0083] In some examples, the third electrical connection structure 830 is a pad structure, and the second processor 500 is welded to the third electrical connection structure 830 .

[0084] In this way, the second processor 500 is firmly connected to the third electrical connection structure 830, and the electrical connection has good stability.

[0085] In some other examples, the third electrical connection structure 830 is a conductive via structure, and the second processor 500 has pins for being inserted into the third electrical connection structure 830 and electrically connected to the third electrical connection structure 830 .

[0086] In some examples, the fourth electrical connection structure 840 is a pad structure, and the second serial port signal terminal group 220 is welded to the fourth electrical connection structure 840 .

[0087] In this way, the second serial port signal terminal group 220 is firmly connected to the fourth electrical connection structure 840, and the electrical connection has good stability.

[0088] In some other examples, the fourth electrical connection structure 840 is a conductive via structure, and the second serial port signal terminal set 220 is plugged into the fourth electrical connection structure 840 .

[0089] In some possible embodiments, the first serial port signal terminal group 210 includes a first serial port signal sending terminal 211 and a first serial port signal receiving terminal 212, the first serial port signal sending terminal 211 is electrically connected to the signal receiving end of the first processor 400, and the first serial port signal receiving terminal 212 is electrically connected to the signal sending end of the first processor 400.

[0090] In this way, the first serial port signal sending terminal 211 can be used to send a debugging signal to the first processor 400, and the first serial port signal receiving terminal 212 can be used to receive a feedback signal from the first processor 400, and the first processor 400 can be debugged according to the feedback signal.

[0091] The feedback signal sent by the first processor 400 may be a serial port signal. The USB-to-serial port chip 200 may convert the feedback signal from a serial port signal into a USB signal and then send the converted signal to the first USB connector 300 .

[0092] Exemplarily, the first signal routing group 710 includes a first serial port signal routing 711 and a second serial port signal routing 712, the first electrical connection structure 810 includes a first sub-electrical connection structure 811 and a second sub-electrical connection structure 812, the second electrical connection structure 820 includes a third sub-electrical connection structure 821 and a fourth sub-electrical connection structure 822, the two ends of the first serial port signal routing 711 are electrically connected to the first sub-electrical connection structure 811 and the third sub-electrical connection structure 821, respectively, the first sub-electrical connection structure 811 is fixed and electrically connected to the signal receiving end of the first processor 400, and the third sub-electrical connection structure 821 is fixed and electrically connected to the first serial port signal sending terminal 211. The two ends of the second serial port routing are electrically connected to the second sub-electrical connection structure 812 and the fourth sub-electrical connection structure 822, respectively, the second sub-electrical connection structure 812 is fixed and electrically connected to the signal sending end of the first processor 400, and the fourth sub-electrical connection structure 822 is fixed and electrically connected to the first serial port signal receiving terminal 212.

[0093] In some possible embodiments, the second serial port signal terminal group 220 includes a second serial port signal sending terminal 221 and a second serial port signal receiving terminal 222, the second serial port signal sending terminal 221 is electrically connected to the signal receiving end of the second processor 500, and the second serial port signal receiving terminal 222 is electrically connected to the signal sending end of the second processor 500.

[0094] In this way, the second serial port signal sending terminal 221 can be used to send a debugging signal to the second processor 500, and the second serial port signal receiving terminal 222 can be used to receive a feedback signal from the second processor 500, and the second processor 500 can be debugged according to the feedback signal.

[0095] The feedback signal sent by the second processor 500 may be a serial port signal. The USB-to-serial port chip 200 may convert the feedback signal from a serial port signal into a USB signal and then send the converted signal to the first USB connector 300 .

[0096] Exemplarily, the second signal routing group 720 includes a third serial port signal routing 721 and a fourth serial port signal routing 722, the third electrical connection structure 830 includes a fifth sub-electrical connection structure 831 and a sixth sub-electrical connection structure 832, the fourth electrical connection structure 840 includes a seventh sub-electrical connection structure 841 and an eighth sub-electrical connection structure 842, the two ends of the third serial port signal routing 721 are electrically connected to the fifth sub-electrical connection structure 831 and the seventh sub-electrical connection structure 841, the fifth sub-electrical connection structure 831 is fixed and electrically connected to the signal receiving end of the second processor 500, and the seventh sub-electrical connection structure 841 is fixed and electrically connected to the second serial port signal sending terminal 221. The two ends of the fourth serial port signal routing 722 are electrically connected to the sixth sub-electrical connection structure 832 and the eighth sub-electrical connection structure 842, the sixth sub-electrical connection structure 832 is fixed and electrically connected to the signal sending end of the second processor 500, and the eighth sub-electrical connection structure 842 is fixed and electrically connected to the second serial port signal receiving terminal 222.

[0097] In other possible implementations, the first processor 400 can be electrically connected to the first serial port signal terminal group 210 via a cable located outside the first circuit board 100, and the second processor 500 can be electrically connected to the second serial port signal terminal group 220 via a cable located outside the first circuit board 100.

[0098] Figure 5 A schematic diagram of another finished circuit board provided in an embodiment of the present application.

[0099] like Figure 5 As shown, and see Figure 3 In some possible implementations, the USB-to-UART chip 200 has a first USB signal terminal set 230, and the first USB connector 300 has a second USB signal terminal set 310. The second USB signal terminal set 310 is electrically connected to the first USB signal terminal set 230.

[0100] In this way, the USB-to-UART chip 200 is conveniently electrically connected to the first USB connector 300 , so that the USB-to-UART chip 200 and the first USB connector 300 can easily exchange USB signals.

[0101] In some possible implementations, the first circuit board 100 has a third signal wiring group 730, a fifth electrical connection structure 850, and a sixth electrical connection structure 860. The fifth electrical connection structure 850 and the sixth electrical connection structure 860 are located on the surface of the first circuit board 100, and the two ends of the third signal wiring group 730 are electrically connected to the fifth electrical connection structure 850 and the sixth electrical connection structure 860, respectively. The first universal serial bus signal terminal group 230 is fixed and electrically connected to the fifth electrical connection structure 850, and the second universal serial bus signal terminal group 310 is fixed and electrically connected to the sixth electrical connection structure 860. Among them, the third signal wiring group 730 is a wiring formed on the first circuit board 100.

[0102] In this way, the USB-to-serial port chip 200 is electrically connected to the first USB connector 300 through the first circuit board 100, and the USB-to-serial port chip 200 is conveniently electrically connected to the first USB connector 300. In addition, the USB-to-serial port chip 200 is connected to the first USB connector 300 through the wiring of the first circuit board 100, which can reduce the arrangement of cables in the housing 40 and save space in the housing 40.

[0103] In some examples, the fifth electrical connection structure 850 is a pad structure, and the first USB signal terminal group 230 is welded to the fifth electrical connection structure 850 .

[0104] In this way, the first universal serial bus signal terminal group 230 is firmly connected to the fifth electrical connection structure 850 , and the electrical connection has good stability.

[0105] In some other examples, the fifth electrical connection structure 850 is a conductive via structure, and the first universal serial bus signal terminal set 230 is plugged into the fifth electrical connection structure 850 .

[0106] In some examples, the sixth electrical connection structure 860 is a pad structure, and the second USB signal terminal group 310 is welded to the sixth electrical connection structure 860 .

[0107] In this way, the second USB signal terminal group 310 is firmly connected to the sixth electrical connection structure 860 , and the electrical connection has good stability.

[0108] In some other examples, the sixth electrical connection structure 860 is a conductive via structure, and the second USB signal terminal set 310 is plugged into the sixth electrical connection structure 860 .

[0109] Exemplarily, the first universal serial bus signal terminal group 230 includes a first positive signal terminal 231 and a first negative signal terminal 232, and the second universal serial bus signal terminal group 310 includes a second positive signal terminal 311 and a second negative signal terminal 312, the first positive signal terminal 231 is electrically connected to the second positive signal terminal 311, and the first negative signal terminal 232 is electrically connected to the second negative signal terminal 312.

[0110] Exemplarily, the third signal routing group 730 includes a positive signal routing 731 and a negative signal routing 732, the fifth electrical connection structure 850 includes a ninth sub-electrical connection structure 851 and a tenth sub-electrical connection structure 852, the sixth electrical connection structure 860 includes an eleventh sub-electrical connection structure 861 and a twelfth sub-electrical connection structure 862, the two ends of the positive signal routing 731 are electrically connected to the ninth sub-electrical connection structure 851 and the eleventh sub-electrical connection structure 861, respectively, the ninth sub-electrical connection structure 851 is fixed and electrically connected to the first positive signal terminal 231, the eleventh sub-electrical connection structure 861 is fixed and electrically connected to the second positive signal terminal 311, the two ends of the negative signal routing 732 are electrically connected to the tenth sub-electrical connection structure 852 and the twelfth sub-electrical connection structure 862, respectively, the tenth sub-electrical connection structure 852 is fixed and electrically connected to the first negative signal terminal 232, and the twelfth sub-electrical connection structure 862 is fixed and electrically connected to the second negative signal terminal 312.

[0111] In some possible implementations, the first USB connector 300 further has a third USB signal terminal set 320 . The third USB signal terminal set 320 is electrically connected to the first USB signal terminal set 230 .

[0112] Thus, any one of the second USB signal terminal set 310 and the third USB signal terminal set 320 electrically connected to the debugging device 20 can enable the debugging device 20 to perform signal interaction with the processor, making the insertion of the first USB connector 300 more flexible.

[0113] In some examples where the first USB connector 300 further has a third USB signal terminal group 320 , the third USB signal terminal group 320 is fixed to and electrically connected to the sixth electrical connection structure 860 .

[0114] In this way, the wiring between the first USB connector 300 and the USB-to-UART chip 200 can be reduced, thus saving space on the first circuit board 100 .

[0115] In some examples, the third universal serial bus signal terminal group 320 may be fixed and electrically connected to the second universal serial bus signal terminal group 310 in the first universal serial bus connector 300, and the third universal serial bus signal terminal group 320 may be fixed and electrically connected to the sixth electrical connection structure 860 through the second universal serial bus signal terminal group 310. Specifically, the third universal serial bus signal terminal group 320 may include a third positive signal terminal 321 and a third negative signal terminal 322, the third positive signal terminal 321 is fixed and electrically connected to the second positive signal terminal 311, the third positive signal terminal 321 is electrically connected to the eleventh sub-electrical connection structure 861 through the second positive signal terminal 311, the third negative signal terminal 322 is fixed and electrically connected to the second negative signal terminal 312, and the third negative signal terminal 322 is fixed and electrically connected to the twelfth sub-electrical connection structure 862 through the second negative signal terminal 312.

[0116] Figure 6 A schematic diagram of another finished circuit board provided in an embodiment of the present application.

[0117] like Figure 6 As shown, in other examples, the second universal serial bus signal terminal group 310 and the third universal serial bus signal terminal group 320 can be respectively fixed to and electrically connected with the sixth electrical connection structure 860. Specifically, the sixth electrical connection structure 860 can also include a thirteenth sub-electrical connection structure 863 and a fourteenth sub-electrical connection structure 864, the third positive signal terminal 321 is electrically connected to the thirteenth sub-electrical connection structure 863, the thirteenth sub-electrical connection structure 863 is electrically connected to the positive signal wiring 731, the third negative signal terminal 322 is electrically connected to the fourteenth sub-electrical connection structure 864, and the fourteenth sub-electrical connection structure 864 is electrically connected to the negative signal wiring 732.

[0118] In some possible implementations, the first USB connector 300 is a Type-C connector.

[0119] In this way, the first universal serial bus connector 300 can be plugged in more flexibly, which is convenient for improving the plugging efficiency between the test equipment and the finished circuit board 10. In addition, the first universal serial bus connector 300 has a strong power supply capacity and a fast signal transmission data, which is conducive to the test equipment to test the finished circuit board 10. In addition, the first universal serial bus connector 300 is small in size and occupies less space on the first circuit board 100.

[0120] Figure 7 A schematic diagram of another finished circuit board provided in an embodiment of the present application.

[0121] like Figure 7As shown, in some other possible implementations, the finished circuit board 10 includes at least two universal serial bus to serial port chips 200, one of which is a first universal serial bus to serial port chip 200a, and the other universal serial bus to serial port chip 200 is a second universal serial bus to serial port chip 200b. The first processor 400 is electrically connected to the first universal serial bus connector 300 through the first universal serial bus to serial port chip 200a, and the second processor 500 is electrically connected to the first universal serial bus connector 300 through the second universal serial bus to serial port chip 200b. At this time, the first universal serial bus to serial port chip 200a and the second universal serial bus to serial port chip 200b can both be universal serial bus to single serial port chips, and the first universal serial bus to serial port chip 200a and the second universal serial bus to serial port chip 200b can be electrically connected to the first universal serial bus connector 300 through an extension chip, and the extension chip can be used to convert one universal serial signal into multiple universal serial signals.

[0122] Exemplarily, the expansion chip may be integrated with the first USB connector 300 .

[0123] Figure 8 A schematic diagram of another finished circuit board provided in an embodiment of the present application.

[0124] like Figure 8 As shown, in some examples, the multiple processors may further include a third processor 600 , and the first processor 400 , the second processor 500 , and the third processor 600 are electrically connected to the same first universal serial bus connector 300 via a universal serial bus to serial port chip 200 .

[0125] Exemplarily, the first processor 400, the second processor 500 and the third processor 600 are electrically connected to the same universal serial bus to multi-serial port chip.

[0126] When the first processor 400, the second processor 500, and the third processor 600 are electrically connected to the same universal serial bus to multi-serial port chip, the universal serial bus to multi-serial port chip further has a third serial port signal terminal group, and the third serial port signal terminal group is electrically connected to the third processor 600. Specifically, the third serial port signal terminal group includes a third serial port signal sending terminal and a third serial port signal receiving terminal, the third serial port signal sending terminal is electrically connected to the signal receiving end of the third processor 600, and the third serial port signal receiving terminal is electrically connected to the signal sending end of the third processor 600.

[0127] Exemplarily, the first circuit board 100 has a fourth signal wiring group 740 , and the third processor 600 is electrically connected to the USB-to-serial port chip 200 via the fourth signal wiring group 740 . The fourth signal wiring group 740 is a wiring formed on the first circuit board 100 .

[0128] Of course, the first USB connector 300 electrically connected to the first processor 400 , the second processor 500 , and the third processor 600 may also be electrically connected to more other processors.

[0129] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0130] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A finished circuit board, characterized in that: It includes a circuit board, a universal serial bus to serial port chip, a universal serial bus connector, a first processor and a second processor; The universal serial bus to serial port chip, the universal serial bus connector, the first processor and the second processor are all arranged on the circuit board; The first processor and the second processor are electrically connected to the same universal serial bus connector via the universal serial bus to serial port chip.

2. The finished circuit board according to claim 1, characterized in that: The universal serial bus to serial port chip is a universal serial bus to multi-serial port chip; The first processor and the second processor are electrically connected to the same universal serial bus to multi-serial port chip, and the universal serial bus to multi-serial port chip is electrically connected to the universal serial bus connector.

3. The finished circuit board according to claim 2, characterized in that: The universal serial bus to multi-serial port chip has a first serial port signal terminal group and a second serial port signal terminal group; The first serial port signal terminal group is electrically connected to the first processor, and the second serial port signal terminal group is electrically connected to the second processor.

4. The finished circuit board according to claim 3, characterized in that: The circuit board comprises a first signal wiring group, a second signal wiring group, a first electrical connection structure, a second electrical connection structure, a third electrical connection structure and a fourth electrical connection structure; The first electrical connection structure, the second electrical connection structure, the third electrical connection structure and the fourth electrical connection structure are located on the surface of the circuit board, two ends of the first signal wiring group are electrically connected to the first electrical connection structure and the second electrical connection structure respectively, and two ends of the second signal wiring group are electrically connected to the third electrical connection structure and the fourth electrical connection structure respectively; The first processor is fixed to and electrically connected to the first electrical connection structure, and the first serial port signal terminal group is fixed to and electrically connected to the second electrical connection structure; The second processor is fixed to and electrically connected to the third electrical connection structure, and the second serial port signal terminal group is fixed to and electrically connected to the fourth electrical connection structure.

5. The finished circuit board according to claim 3, characterized in that: The first serial port signal terminal group includes a first serial port signal sending terminal and a first serial port signal receiving terminal, the first serial port signal sending terminal is electrically connected to the signal receiving terminal of the first processor, and the first serial port signal receiving terminal is electrically connected to the signal sending terminal of the first processor; The second serial port signal terminal group includes a second serial port signal sending terminal and a second serial port signal receiving terminal, the second serial port signal sending terminal is electrically connected to the signal receiving end of the second processor, and the second serial port signal receiving terminal is electrically connected to the signal sending end of the second processor.

6. The finished circuit board according to any one of claims 1 to 5, characterized in that: The USB-to-serial port chip has a first USB signal terminal group, and the USB connector has a second USB signal terminal group; The second USB signal terminal group is electrically connected to the first USB signal terminal group.

7. The finished circuit board according to claim 6, characterized in that: The universal serial bus connector also has a third universal serial bus signal terminal group; The third USB signal terminal group is electrically connected to the first USB signal terminal group.

8. The finished circuit board according to claim 7, characterized in that: The circuit board has a third signal wiring group, a fifth electrical connection structure and a sixth electrical connection structure; The fifth electrical connection structure and the sixth electrical connection structure are located on the surface of the circuit board, and two ends of the third signal wiring group are electrically connected to the fifth electrical connection structure and the sixth electrical connection structure respectively; The first USB signal terminal group is fixed to and electrically connected to the fifth electrical connection structure, and the second USB signal terminal group and the third USB signal terminal group are fixed to and electrically connected to the sixth electrical connection structure.

9. The finished circuit board according to any one of claims 1 to 5, characterized in that: The universal serial bus connector is a Type-C connector.

10. An electronic device, characterized in that: A finished circuit board comprising a housing and the finished circuit board as claimed in any one of claims 1 to 9; The finished circuit board is arranged in the housing.

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