CN115774531A - Electronic system capable of supporting multiple display interfaces - Google Patents

Abstract

An electronic system capable of supporting multiple display interfaces comprises a processing unit, at least N screen signal connection ports connected with the processing unit, at least N switch units respectively connected with the screen signal connection ports, and at least N switching units connected with the processing unit and respectively connected with the switch units. The processing unit can support M kinds of display interface signals, N is more than or equal to 4, M >. Each switch unit has an input terminal and an output terminal. By means of the design that the screen signal connecting ports respectively correspond to the display interface signals and when the input end of each switch unit receives an insertion message of the corresponding screen signal connecting port, the output end of each switch unit can transmit a trigger message of the display interface signal corresponding to the corresponding screen signal connecting port to the processing unit, and the processing unit can trigger the display interface signal corresponding to the trigger message, so that M display interface signals can be used by a user for selecting N types.

Description

Electronic system capable of supporting multiple display interfaces

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electronic device, and more particularly, to an electronic system capable of supporting multiple display interfaces.

[ background ] A method for producing a semiconductor device

In recent years, with the vigorous development and application of video display technology, display interface transmission such as high-definition multimedia interface (HDMI), display Port (DP), low Voltage Differential Signaling (LVDS), eDP (Embedded display port), VGA, etc. is commonly used. Generally, a processing unit (CPU) of an electronic device can process 4 display interfaces at most simultaneously and display 4 display interfaces at most simultaneously, and therefore, in the design process, a required display interface is selected according to the number of the display interfaces that can be processed by the processing unit (CPU) at most simultaneously, and in the case that the processing unit (CPU) can process 4 display interfaces at most simultaneously, 4 more common display interfaces are selected for product design and use by a user, for example: a processing unit (CPU) of the electronic device is designed to simultaneously process the transmission of four display interfaces of HDMI, DP, VGA and LVDS. At present, a Common Processing Unit (CPU) can support at least more than four display interface requirements, but is limited by the condition that the processing unit (CPU) can only process at most 4 display interfaces simultaneously, and only the processing unit is reserved with the trigger modules corresponding to the selected four display interfaces in the production development process, so that the electronic device can support the four display interfaces. However, since the processing unit only reserves the trigger modules corresponding to the selected four display interfaces, the display interfaces that can be used are only four, for example, only four commonly used display interfaces of HDMI1, HDMI2, DP and LVDS are provided for users to transmit, so that the subsequent use of the display interface of VGA in the production and development process cannot replace the display interface of VGA, the applicability is not good and the requirement of customer satisfaction cannot be met, which is worthy of careful thinking, research and improvement of practitioners.

[ summary of the invention ]

The invention aims to provide an electronic system which has good applicability and can support various display interfaces.

In order to solve the above technical problem, the electronic system capable of supporting multiple display interfaces of the present invention comprises a processing unit, at least N screen signal connection ports connected to the processing unit, at least N switch units respectively connected to the screen signal connection ports, and at least N switching units connected to the processing unit and respectively connected to the switch units.

The processing unit can support M kinds of display interface signals. When the processing unit is operated, at most N kinds of display interface signals are processed simultaneously, wherein N is larger than or equal to 4, M >. The screen signal connection ports respectively correspond to the display interface signals. Each screen signal connection port comprises a hot plug detection pin.

Each switch unit has an input end connected with the hot plug detection pin of the corresponding screen signal connection port and an output end. When each hot plug detection pin detects an insertion message and the input end of each switch unit receives the insertion message through the corresponding hot plug detection pin, the output end of each switch unit transmits a trigger message of the display interface signal corresponding to the corresponding screen signal connection port.

The switching units are respectively connected with the output ends of the switch units. Each switching unit can be controlled to be set in a first preset state or a second preset state. Each switching unit is set in the first preset state in a built-in mode, and when each switching unit receives the trigger message through the output end of the corresponding switch unit, each switching unit transmits the received trigger message to the processing unit, so that the processing unit can trigger a display interface signal corresponding to the trigger message; each switching unit is built in and set to the second preset state, and when each switching unit receives the trigger message through the output end of the corresponding switch unit, each switching unit cannot transmit the received trigger message to the processing unit.

Compared with the prior art, the invention can support M kinds of display interface signals by the processing unit, the screen signal connecting ports respectively correspond to the design of the display interface signals, and when the input end of each switch unit receives the insertion message detected by each screen signal connecting port, the output end of each switch unit can transmit the trigger message of the display interface signal corresponding to the corresponding screen signal connecting port to the corresponding switching unit and transmit the trigger message to the processing unit, and the processing unit can trigger the display interface signal corresponding to the trigger message, so that the requirement of selecting N kinds of display interface signals to be executed from the M kinds of display interface signals supported by the processing unit by a user can be met, the applicability is effectively improved, and the satisfaction of the user is achieved.

[ description of the drawings ]

Other features and advantages of the present invention will become apparent from the following detailed description of the preferred embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a block diagram illustrating a first embodiment of an electronic system capable of supporting multiple display interfaces according to the present invention; and

FIG. 2 is a block diagram illustrating a second embodiment of an electronic system capable of supporting multiple display interfaces according to the present invention.

[ detailed description ] embodiments

Referring to fig. 1, the first embodiment of the electronic system capable of supporting multiple display interfaces of the present invention includes a processing unit 1, at least N screen signal connection ports 2 connected to the processing unit 1, at least N switch units 3 respectively connected to the screen signal connection ports 2, and at least N switch units 4 connected to the processing unit 1 and respectively connected to the switch units 3. The processing unit 1 can support M kinds of display interface signals, and when the processing unit 1 is operated, at most N kinds of display interface signals are processed simultaneously, wherein N is more than or equal to 4, M >. In the present embodiment, N is 4,M is 6, that is, the first embodiment includes at least four screen signal ports 2, at least four switch units 3, and at least four switch units 4. The processing unit 1 can support six display interface signals, and when the processing unit 1 is operating, at most four display interface signals are processed simultaneously, and the following description will be given with an implementation mode of N4,M being 6, but not limited thereto. For convenience of illustration, fig. 1 only shows the connection relationship between the processing unit 1 and two of the screen signal connection ports 2, two of the switch units 3 and two of the switch units 4.

The screen signal connection ports 2 correspond to the display interface signals respectively. Each screen signal connection port 2 includes a hot plug detection pin 21. In this embodiment, the number of the screen signal connection ports 2 is four, and since the processing unit 1 can process only four display interface signals at most, the number of the screen signal connection ports 2 is designed to be four, and the four screen signal connection ports 2 respectively correspond to the four selected display interface signals, but not limited thereto.

Each switch unit 3 has an input terminal 31 connected to the hot plug detection pin 21 of the corresponding screen signal port 2, and an output terminal 32. When each hot plug detection pin 21 detects an insertion message and the input terminal 31 of each switch unit 3 receives the insertion message through the corresponding hot plug detection pin 21, the output terminal 32 of each switch unit 3 will transmit a trigger message of the display interface signal corresponding to the corresponding screen signal port 2. In brief, the processing unit 1 can support six display interface signals, the screen signal connection ports 2 correspond to the display interface signals respectively, when the hot plug detection pins 21 of each screen signal connection port 2 detect the insertion message, the input end 31 of each switch unit 3 receives the insertion message detected by each screen signal connection port 2, and the output end 32 of each switch unit 3 transmits the trigger message of the display interface signal corresponding to the corresponding screen signal connection port 2. In this embodiment, the processing unit 1 can support six display Interface signals, which are HDMI, DP, LVDS, eDP (Embedded display port), VGA and DVI (Digital Visual Interface), but not limited thereto. The processing unit 1 can also support six display interface signals, i.e., HDMI1, HDMI2, DP1, DP2, VGA and LVDS, according to practical requirements.

The switching units 4 are respectively connected to the switching units 4 of the output 32 of the switching unit 3. Each switching unit 4 can be controlled to be set in one of a first preset state and a second preset state. Each switching unit 4 is built in and set to the first preset state, and when each switching unit 4 receives the trigger message through the output end 32 of the corresponding switch unit 3, each switching unit 4 transmits the received trigger message to the processing unit 1, so that the processing unit 1 enables to trigger the display interface signal corresponding to the trigger message; each switch unit 4 is built-in to be set in the second predetermined state, and when each switch unit 4 receives the trigger message through the output terminal 32 of the corresponding switch unit 3, each switch unit 4 cannot transmit the received trigger message to the processing unit 1. That is, any switching unit 4 can be set to the first predetermined state or the second predetermined state, and only when the switching unit 4 is set to the first predetermined state and the switching unit 4 receives the trigger message through the output end 32 of the corresponding switch unit 3, the switching unit 4 can transmit the received trigger message to the processing unit 1, so that the processing unit 1 can trigger the display interface signal corresponding to the trigger message. In contrast, if the trigger message is set to the second preset state, even if the switching unit 4 receives the trigger message, the switching unit 4 cannot transmit the received trigger message to the processing unit 1, so that the processing unit 1 cannot trigger the display interface signal corresponding to the trigger message.

It should be noted that, in the present embodiment, each switching unit 4 has a Header module 50 and a Jumper (not shown), and each Header module 50 has a first pin 51, a second pin 52 connected to the output end 32 of the corresponding switch unit 3, and a third pin 53 connected to the processing unit 1. When each jumper is sleeved with the corresponding second pin 52 and the third pin 53, each switching unit 4 is built in to be set in the first preset state, and at this time, each switching unit 4 can transmit the received trigger message to the processing unit 1 through the third pin 53; when each jumper is sleeved with the corresponding first pin 51 and the second pin 52, each switching unit 4 is built in to be set to the second preset state, and at this time, each switching unit 4 cannot transmit the received trigger message to the processing unit 1. Specifically, each switching unit 4 is in the first preset state or the second preset state depending on the position where each jumper is combined, for example, when one jumper is sleeved with the corresponding second pin 52 and the third pin 53, the switching unit 4 is built in to be set in the first preset state, at this time, since the second pin 52 and the third pin 53 are sleeved by the jumper, the second pin 52 and the third pin 53 are in a short-circuit conducting state, and when the second pin 52 receives the trigger message from the output end 32 of the corresponding switch unit 3, the trigger message can be transmitted through the third pin 53 to the processing unit 1, so that the processing unit 1 can enable to trigger the display interface signal corresponding to the trigger message. In contrast, if one of the jumpers is sleeved with the corresponding first pin 51 and the second pin 52, and the switching unit 4 is built in the second predetermined state, at this time, the second pin 52 and the third pin 53 are in an open circuit state, and the second pin 52 cannot transmit the received trigger message to the processing unit 1 through the third pin 53. In addition, in the embodiment, each switching unit 4 is a combination of the Header module 50 and the Jumper (Jumper), but not limited to this, a configuration that each switching unit 4 has a Dip-Switch module (not shown) may be designed according to actual requirements, when each Dip-Switch module is turned on, each switching unit 4 is built in to be set to the first preset state, and at this time, each switching unit 4 may transmit the received trigger message to the processing unit 1; when each dip switch module is turned off, each switching unit 4 is built in to be set to the second preset state, and at this time, each switching unit 4 cannot transmit the received trigger message to the processing unit 1.

The processing unit 1 can support six display interface signals, the screen signal connection ports 2 correspond to the design of the display interface signals respectively, and when the input end 31 of each switch unit 3 receives the insertion message detected by each screen signal connection port 2, the output end 32 of each switch unit 3 transmits the trigger message of the display interface signal corresponding to the corresponding screen signal connection port 2 to the corresponding switching unit 4 to be transmitted to the processing unit 1, and the processing unit 1 enables the display interface signal corresponding to the trigger message to be triggered, so that all six display interface signals supported by the processing unit 1 can be selected by a user, and the user can select four display interface signals required to be executed from the six display interface signals supported by the processing unit 1, thereby effectively improving the applicability and achieving the satisfaction of the user.

It should be noted that, in this embodiment, the number of the screen signal connection ports 2 is four, the number of the switch units 3 is six, and the number of the switch units 4 is six, but not limited thereto, since the processing unit 1 can process only four display interface signals at most, the number of the screen signal connection ports 2 is four, and the switch unit 4 corresponding to the switch unit 3 connected to each screen signal connection port 2 is configured to be in the first preset state, in short, the number of the screen signal connection ports 2 is configured to be four, and the screen signal connection ports 2 are respectively connected to the corresponding switch units 3, and the switch unit 4 corresponding to the switch unit 3 connected to each screen signal connection port 2 is configured to be in the first preset state according to product design considerations, that is, four switch units 3 are connected to the corresponding four built-in signal connection ports, and the four switch units 4 corresponding to the four switch units 3 are respectively configured to be in the first preset state. In other words, in the present embodiment, since the number of the screen signal connection ports 2 is four, only the design of the four switch units 4 connected to the four switch units 3 and the four switch units 3 to be used is used from the six switch units 3 and the six switch units 4, and the four switch units 4 are only required to be built in the first preset state, but not limited thereto, and the number of the screen signal connection ports 2 may be five or six according to the actual design requirement.

Referring to fig. 2, a second embodiment of the electronic system capable of supporting multiple display interfaces of the present invention is substantially the same as the first embodiment, and is not described herein again, except that: the electronic system further comprises a south bridge 7 connected to the processing unit 1, and a BIOS 8 connected to the south bridge 7. The basic input/output unit 8 comprises at least N setting parameters corresponding to the switching unit 4, wherein N is more than or equal to 4. In the present embodiment, the number of the switching units 4 is six, so the basic input/output unit 8 is designed to include six setting parameters respectively corresponding to the six switching units 4, but not limited thereto. For convenience of illustration, fig. 2 only shows the connection relationship between the processing unit 1 and two of the screen signal connection ports 2, two of the switch units 3 and two of the switch units 4. Each switching unit 4 has a logic gate 61 connecting the processing unit 1 and the output 32 of the corresponding switching unit 3. The logic gate 61 has a first receiving terminal 62 connected to the output terminal 32 of the corresponding switch unit 3, a second receiving terminal 63 controlled by the processing unit 1, and a transmitting terminal 64 connected to the processing unit 1. In the embodiment, the basic input/output unit 2 (BIOS) is stored in a Flash Memory (Flash Memory) as shown in fig. 2, but not limited thereto.

When the processing unit 1 executes the bios unit 8 and reads that each setting parameter is a first bit value, the processing unit 1 controls the second receiving end 63 of the logic gate 61 corresponding to the setting parameter to be a first level, so that each switching unit 4 is set to the first preset state, and at this time, the logic gate 61 of each switching unit 4 can transmit the trigger message received by the first receiving end 62 to the processing unit 1 through the transmitting end 64; when the processing unit 1 executes the bios 8 and reads that each setting parameter is a second bit value, the processing unit 1 controls the second receiving end 63 of the logic gate 61 corresponding to the setting parameter to be a second level, so that each switching unit 4 is built in to be set to the second predetermined state, and at this time, the logic gate 61 of each switching unit 4 cannot transmit the trigger message received by the first receiving end 62 to the processing unit 1 through the transmitting end 64. In the present embodiment, the first bit value of each configuration parameter of the basic input/output cell 8 is "1", and the second bit value is "0". When each setting parameter is set to "1", the processing unit 1 controls the second receiving end 63 of the logic gate 61 corresponding to the setting parameter to be at the first level, which is "High" level; when each setting parameter is set to "0", the processing unit 1 controls the second receiving end 63 of the logic gate 61 corresponding to the setting parameter to be the second level, which is "Low", but not limited thereto. That is, each switch unit 4 is in the first preset state or the second preset state depending on the bit value of the corresponding setting parameter in the bios 8, for example, when the setting parameter corresponding to one switch unit 4 is the first bit value "1", which represents that it is set to Enable, so that the processing unit 1 executes the bios 8 to read the first bit value, and controls the second receiving end 63 of the logic gate 61 of the switch unit 4 corresponding to the setting parameter to be the first level "High", so as to make the switch unit 4 be in the first preset state, at this time, the logic gate 61 of the switch unit 4 can transmit the trigger message received by the first receiving end 62 to the processing unit 1 through the transmission end 64, so that the processing unit 1 enables to trigger the display interface signal corresponding to the trigger message. In contrast, if the setting parameter corresponding to one of the switch units 4 is the second bit value "0", which represents that it is set to Disable, the processing unit 1 executes the bios 8 to read the second bit value, and controls the second receiving end 63 of the logic gate 61 of the switch unit 4 corresponding to the setting parameter to be the second level "Low", so that the switch unit 4 is in the second preset state, at this time, the logic gate 61 of the switch unit 4 cannot transmit the trigger message received by the first receiving end 62 to the processing unit 1 through the transmitting end 64, so that the processing unit 1 cannot enable the display interface signal corresponding to the trigger message.

It should be noted that, in the present embodiment, the processing unit 1 has at least N GPIO pins 11 corresponding to the setting parameters, where N ≧ 4. The GPIO pin 11 of the processing unit 1 corresponds to the logic gate 61 of the switching unit 4, is respectively connected to the second receiving terminals 63 of the logic gates 61, and is respectively used to control the second receiving terminals 63 of the logic gates 61. In the present embodiment, the number of the switching units 4 is six, so that the basic input/output unit 8 is designed to include six setting parameters respectively corresponding to the six switching units 4, and the processing unit 1 has six GPIO pins 11 corresponding to the six setting parameters, but not limited thereto. For convenience of illustration, fig. 2 only shows the connection relationship between two of the GPIO pins 11 in the processing unit 1 and the logic gates 61 of two of the switching units 4. When each setting parameter is set to "1", the processing unit 1 controls the GPIO pin 11 corresponding to the setting parameter to be at the "High" level and the second receiving terminal 63 corresponding to the logic gate 61 to be at the "High" level; when each setting parameter is set to "0", the processing unit 1 controls the GPIO pin 11 corresponding to the setting parameter to be at the "Low" level and the second receiving terminal 63 corresponding to the logic gate 61 to be at the "Low" level. In short, when the processing unit 1 executes the basic input/output unit 8 to read one of the setting parameters as the first bit value "1", the GPIO pin 11 corresponding to the setting parameter is controlled to be pulled High to the first level "High", so that the second receiving terminal 63 of the logic gate 61 of the switching unit 4 connected to the GPIO pin 11 is controlled to be the first level "High", and the corresponding switching unit 4 is controlled to be in the first preset state, at this time, the logic gate 61 of the switching unit 4 can transmit the trigger message received by the first receiving terminal 62 to the processing unit 1 through the transmitting terminal 64, and the processing unit 1 can enable to trigger the display interface signal corresponding to the trigger message. On the contrary, if the processing unit 1 executes the basic input/output unit 8 to read that one of the setting parameters is the second bit value "0", the GPIO pin 11 corresponding to the setting parameter is controlled to be pulled down to the second level "Low", so that the second receiving terminal 63 of the logic gate 61 of the switching unit 4 connected to the GPIO pin 11 is the second level "Low", and the corresponding switching unit 4 is in the second preset state, at this time, the logic gate 61 of the switching unit 4 cannot transmit the trigger message received by the first receiving terminal 62 to the processing unit 1 through the transmitting terminal 64. In this embodiment, at least one of the setting parameters of the basic input/output unit 8 is set to the first bit value, and the switch unit 4 corresponding to the setting parameter set to the first bit value is set to the first default state. When the switching unit 4, which is set to the first default state, receives the trigger message through the output end 32 of the corresponding switch unit 3, the switching unit 4 transmits the received trigger message to the processing unit 1 and enables the processing unit 1 to enable the display interface signal corresponding to the trigger message, at this time, the screen signal connection port 2 corresponding to the switch unit 3 is enabled by the processing unit 1 to enable the corresponding display interface signal, and a screen unit (not shown) connected to the screen signal connection port 2 can display a display interface (not shown). Specifically, the BIOS unit 8 further includes a setting module (not shown), and the processing unit 1 executes the setting module of the BIOS unit 8 and displays a function setting MENU (BIOS MENU) (not shown) on the display interface, where the function setting MENU displays at least four item fields (not shown) corresponding to the setting parameters of the switching unit. In the present embodiment, the number of the switching units 4 is six, so that the function setting menu has six item fields, but not limited thereto. In short, the function setting MENU (BIOS MENU) can be entered to set the bit value of the setting parameter corresponding to each entry field to be the first bit value "1" or the second bit value "0". Further, at least one switching unit 4 is built in to be set to the first predetermined state, and the processing unit 1 is enabled to trigger the display interface signal corresponding to the trigger message and to make the screen unit connected to the screen signal connection port 2 display the display interface, so that the user can enter the setting parameters corresponding to each item field through the function setting MENU (BIOS MENU) displayed on the display interface and set the bit value of each setting parameter. In other words, the user can set the bit value of the item field through the function setting MENU (BIOS MENU) to optionally set the display interface signal to be used in the display interface signal supported by the processing unit 1.

In summary, the electronic system capable of supporting multiple display interfaces of the present invention can support six display interface signals by the processing unit 1, and the screen signal connection ports 2 correspond to the design of the display interface signals respectively, and when each switch unit 3 receives the insertion message detected by each screen signal connection port 2, the output end 32 of each switch unit 3 transmits the trigger message of the display interface signal corresponding to the corresponding screen signal connection port 2 to the corresponding switch unit 4 and transmits the trigger message to the processing unit 1, and the processing unit 1 enables to trigger the display interface signal corresponding to the trigger message, so as to achieve that all of the six display interface signals can be selected by the user, and the user can select four display interface signals to be executed from the six display interface signals supported by the processing unit 1, thereby effectively improving the applicability and achieving the satisfaction of the user.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. An electronic system capable of supporting multiple display interfaces, comprising:

a processing unit, which can support at least M kinds of display interface signals, and when the processing unit is operated, at most N kinds of display interface signals are processed simultaneously, wherein N is more than or equal to 4, M >;

at least N screen signal connection ports which are connected with the processing unit and respectively correspond to the display interface signals, wherein each screen signal connection port comprises a hot plug detection pin;

at least N switch units which are respectively connected with the screen signal connecting ports, wherein each switch unit is provided with an input end connected with a hot plug detection pin of the corresponding screen signal connecting port and an output end, and when each hot plug detection pin detects an insertion message and the input end of each switch unit receives the insertion message through the corresponding hot plug detection pin, the output end of each switch unit can transmit a trigger message of a display interface signal corresponding to the corresponding screen signal connecting port; and

at least N switching units connected with the processing unit and respectively connected with the output ends of the switch units, wherein each switching unit can be controlled to be built in to set one of a first preset state and a second preset state, each switching unit is built in to set the first preset state, and when each switching unit receives the trigger message through the output end of the corresponding switch unit, each switching unit transmits the received trigger message to the processing unit, so that the processing unit can trigger the display interface signal corresponding to the trigger message; each switching unit is built in and set to the second preset state, and when each switching unit receives the trigger message through the output end of the corresponding switch unit, each switching unit cannot transmit the received trigger message to the processing unit.

2. The electronic system of claim 1, wherein each switching unit comprises a pin arrangement module and a jumper, each pin arrangement module comprises a first pin, a second pin connected to the output terminal of the corresponding switch unit, and a third pin connected to the processing unit, when each jumper is sleeved with the corresponding second pin and the corresponding third pin, each switching unit is built in the first preset state, and at this time, each switching unit can transmit the received trigger message to the processing unit through the third pin; when each jumper device is sleeved with the corresponding first pin and the second pin, each switching unit is set to be in the second preset state, and at the moment, each switching unit cannot transmit the received trigger message to the processing unit.

3. The electronic system of claim 1, wherein each switch unit has a dip switch module, when each dip switch module is turned on, each switch unit is built in the first preset state, and at this time, each switch unit can transmit the received trigger message to the processing unit; when each dip switch module is closed, each switching unit is built in and set to the second preset state, and at the moment, each switching unit cannot transmit the received trigger message to the processing unit.

4. The electronic system of claim 1, wherein the switch unit corresponding to the switch unit connected to each screen signal port is configured to be in the first predetermined state.

5. The electronic system of claim 1, further comprising a south bridge connected to the processing unit, and a basic input/output unit connected to the south bridge, wherein the basic input/output unit comprises at least N setting parameters corresponding to the switching units, each switching unit has a logic gate connected to the processing unit and the output terminal of the corresponding switching unit, the logic gate has a first receiving terminal connected to the output terminal of the corresponding switching unit, a second receiving terminal controlled by the processing unit, and a transmitting terminal connected to the processing unit, when the processing unit executes the basic input/output unit and reads that each setting parameter is set to a first bit value, the processing unit controls the second receiving terminal of the logic gate of the switching unit corresponding to the setting parameter to be a first level, so that each switching unit is set to the first preset state, and at this time, the logic gate of each switching unit can transmit the trigger message received by the first receiving terminal to the processing unit through the transmitting terminal; when the processing unit executes the basic input and output unit and reads that each set parameter is set as a second bit value, the processing unit controls a second receiving end of the logic gate corresponding to the set parameter to be at a second level, so that each switching unit is built in and set to be in the second preset state, and at the moment, the logic gate of each switching unit cannot transmit the trigger message received by the first receiving end to the processing unit through the transmission end.

6. The electronic system of claim 5, wherein the first bit value of each setting parameter of the BIOS is "1", the second bit value is "0", and when each setting parameter is "1", the processing unit controls the second receiving end of the logic gate corresponding to the setting parameter to be at the first level, which is "High"; when each setting parameter is set to "0", the processing unit controls the second receiving end of the logic gate corresponding to the setting parameter to be at the second level, which is "Low".

7. The electronic system of claim 6, wherein the processing unit has at least N GPIO pins corresponding to the setting parameters, the GPIO pins of the processing unit correspond to the logic gates of the switching unit and are respectively connected to the second receiving terminals of the logic gates and are respectively used for controlling the second receiving terminals of the logic gates, when each setting parameter is set to "1", the processing unit controls the GPIO pin corresponding to the setting parameter to be at "High" level and the second receiving terminal corresponding to the logic gate to be at "High" level; when each setting parameter is set to "0", the processing unit controls the GPIO pin corresponding to the setting parameter to be at "Low" level and the second receiving terminal corresponding to the logic gate to be at "Low" level.

8. The electronic system as claimed in claim 5, wherein at least one of the setting parameters of the basic input/output unit is set to the first bit value, and the switch unit corresponding to the setting parameter set to the first bit value is set to the first default state, when the switch unit set to the first default state receives the trigger message via the output terminal of the corresponding switch unit, the switch unit transmits the received trigger message to the processing unit and enables the processing unit to trigger the display interface signal corresponding to the trigger message, and at this time, the screen signal connection port corresponding to the switch unit is enabled by the processing unit to enable the corresponding display interface signal and enable a screen unit connected to the screen signal connection port to display a display interface.

9. The electronic system as claimed in claim 8, wherein the BIOS further comprises a setting module, the processing unit executes the setting module of the BIOS and displays a function setting menu on the display interface, the function setting menu having at least N fields, the fields corresponding to the setting parameters of the switching unit.

Images