CN219761118U - White balance debugging circuit supporting IIC and RS232 signal conversion - Google Patents

Abstract

The utility model provides a white balance debugging circuit supporting IIC and RS232 signal conversion, which comprises a CH341 communication protocol conversion circuit, wherein the input end of the CH341 communication protocol conversion circuit is connected with a PC control end and a power supply, the output end of the CH341 communication protocol conversion circuit is provided with a UARTRS232 signal output interface and an IICSPI signal output interface which are respectively connected with a UARTRS232 signal input interface and an IICSPI signal input interface which are arranged at the input end of a communication merging circuit, and the output end of the communication merging circuit is connected with a debugged display. The beneficial effects of the utility model are as follows: the UARTRS232 signal and the IIC SPI signal can be combined and input into a communication combining circuit, so that white balance debugging can be completed by only plugging 1 HDMI wire, and the debugging production efficiency of televisions and displays is greatly improved.

Description

White balance debugging circuit supporting IIC and RS232 signal conversion

Technical Field

The utility model relates to the technical field of household appliance debugging circuits, in particular to a white balance debugging circuit supporting IIC and RS232 signal conversion.

Background

In order to improve the picture display effect of the television and the display and realize accurate color display, the television and the display generally need to be debugged on line before leaving the factory, the IIC signal is totally called IIC SPI signal, and the RS232 signal is totally called UART RS232 signal.

In the past white balance debugging, 2 signal cables need to be inserted into signal input, namely: HMDI image signal line, HDMI interface serial communication signal line, pipeline production speed 10S/platform, staff plug 2 signal lines consume 8-10S, and the regulation of plus formal white balance data matches 10S/platform consuming time, very big influence pipeline production efficiency.

Different TV mainboard/display mainboard serial communication protocols are different, and product debugging often needs to prepare 2 total communication module frock of RS323 and IIC, and the frock is frequently changed the equipment and is fragile, and the communication is easily disturbed and falls the line, and communication module frequently inserts PC host computer drive discernment and easily confuses and lead to the communication unresponsiveness, needs engineer to examine reason and influences assembly line production efficiency, sometimes still needs to update the drive version, needs to reinstall or restore the system when serious, very big influence the debugging production efficiency of TV and display.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a white balance debugging circuit supporting IIC and RS232 signal conversion, which is characterized in that a CH341 communication protocol conversion circuit, a communication merging circuit and a power supply are arranged to be matched with each other, and UART RS232 signals and IIC SPI signals can be merged and input into one communication merging circuit to realize that white balance debugging can be completed by only plugging 1 HDMI wire, so that the operation time is greatly saved compared with the traditional mode of plugging 2 HDMI wires in white balance debugging, the switching compatibility of UART RS232 signals and IIC SPI signals is realized, the potential safety hazard of frequently replacing tools is avoided, the debugging production efficiency of televisions and displays is greatly improved, and the problems of low debugging production efficiency, two HDMI wires and frequent tool replacement in the prior art are solved.

The utility model provides a white balance debugging circuit supporting IIC and RS232 signal conversion, which comprises a CH341 communication protocol conversion circuit, a communication merging circuit and a power supply, wherein the input end of the CH341 communication protocol conversion circuit is provided with a power interface and a USB interface, the input end of the CH341 communication protocol conversion circuit is connected with a PC control end through the USB interface, the input end of the CH341 communication protocol conversion circuit is connected with the power supply through the power interface, the output end of the CH341 communication protocol conversion circuit is provided with a UART RS232 signal output interface and an IIC SPI signal output interface, the input end of the communication merging circuit is provided with a UART RS232 signal input interface and an IIC SPI signal input interface, the UART RS232 signal output interface is connected with the UART RS232 signal input interface, the IIC SPI signal output interface is connected with the IIC SPI signal input interface, the output end of the communication merging circuit is connected with a debugged display, and the CH341 communication protocol conversion circuit can convert an RS232 signal or an IIC SPI signal sent by the PC control end to the UART SPI signal to be matched with the debugged display to be output in the debugged display interface.

The utility model is further improved, the CH341 communication protocol conversion circuit is provided with a communication protocol conversion chip IC, the model of the communication protocol conversion chip IC is CH341, the communication protocol conversion chip IC is provided with a communication protocol selection interface J2, 28 pins are arranged on the communication protocol conversion chip IC, the communication protocol selection interface J2 is provided with 3 pins, when the 1 st pin of the communication protocol selection interface J2 is connected with the 2 nd pin of the communication protocol selection interface J2, the communication protocol conversion chip IC is connected with the UART RS232 signal input interface through the UART RS232 signal output interface, when the 2 nd pin of the communication protocol selection interface J2 is connected with the 3 rd pin of the communication protocol selection interface J2, the communication protocol conversion chip IC is connected with the IIC SPI signal input interface through the IIC SPI signal output interface.

The utility model further improves, the CH341 communication protocol conversion circuit is also provided with a capacitor C1, the power interface is a power interface J1, the power interface J1 is provided with 3 pins, the 1 st pin and the 2 nd pin of the power interface J1 are respectively connected with the 28 th pin of the communication protocol conversion chip IC and the 9 th pin of the communication protocol conversion chip IC, the 3 rd pin of the power interface J1 is grounded through the capacitor C1, when the 1 st pin and the 2 nd pin of the power interface J1 are connected, the power interface J1 outputs 3.3V voltage VCC, when the 2 nd pin and the 3 rd pin of the power interface J1 are connected, the power interface J1 outputs 5V voltage VCC.

According to the utility model, the UART RS232 signal output interface is a UART RS232 signal output interface J3, 4 pins are arranged on the UART RS232 signal output interface J3, the 1 st pin is connected with the power interface J1 to output voltage VCC, the 4 th pin is grounded, and the 2 nd pin and the 3 rd pin are connected with the 24 th pin and the 23 rd pin of the communication protocol conversion chip IC and the UART RS232 signal input interface.

According to the utility model, the IIC SPI signal output interface is an IIC SPI signal output interface J4, the IIC SPI signal output interface J4 is provided with 4 pins, the 1 st pin is connected with the output voltage VCC of the power interface J1, the 4 th pin is grounded, and the 2 nd pin and the 3 rd pin are connected with the 24 th pin and the 23 rd pin of the communication protocol conversion chip IC and the IIC SPI signal input interface.

According to the utility model, the UART RS232 signal input interface is a UART RS232 signal input interface J2, 4 pins are arranged on the UART RS232 signal input interface J2, and the 2 nd pin and the 3 rd pin are connected with the 24 th pin and the 23 rd pin of the communication protocol conversion chip IC and the 2 nd pin and the 3 rd pin of the UART RS232 signal output interface J3.

According to the utility model, the IIC SPI signal input interface is an IIC SPI signal input interface J1, the IIC SPI signal input interface J1 is provided with 4 pins, and pins 2 and 3 are connected with pins 24 and 23 of the communication protocol conversion chip IC and pins 2 and 3 of the IIC SPI signal output interface J4.

According to the utility model, the communication merging circuit is further improved, the communication merging circuit is provided with an HDMI-IN interface and an HDMI-OUT interface which are fixedly connected, the HDMI-IN interface is provided with 19 pins, and the 15 th pin and the 16 th pin are connected with the 2 nd pin and the 3 rd pin of the UART RS232 signal input interface J2 and the 2 nd pin and the 3 rd pin of the IIC SPI signal input interface J1.

The utility model is further improved, the communication merging circuit is provided with a VGA-IN interface and a VGA-OUT interface which are fixedly connected, the VGA-IN interface is provided with 15 pins, and the 12 th pin and the 15 th pin are connected with the 2 nd pin and the 3 rd pin of the UART RS232 signal input interface J2 and the 2 nd pin and the 3 rd pin of the IIC SPI signal input interface J1.

Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a white balance debugging circuit supporting conversion of IIC and RS232 signals, which is characterized in that a CH341 communication protocol conversion circuit, a communication merging circuit and a power supply are matched with each other, the CH341 communication protocol conversion circuit can convert UART RS232 signals or IIC SPI signals sent by a PC control end and then input the converted UART RS232 signals or IIC SPI signals to the communication merging circuit, an adaptive output interface is selected and output to a debugged display to finish white balance debugging, and the UART RS232 signals and the IIC SPI signals can be input to the communication merging circuit to realize that white balance debugging can be finished by only plugging 1 HDMI wire, so that the operation time is greatly saved compared with the traditional mode of plugging 2 HDMI wires by white balance debugging, the switching compatibility of UART RS232 signals and IIC SPI signals is realized, the potential safety hazards caused by frequent tool replacement are avoided, the debugging production efficiency of televisions and displays is greatly improved, and the problems of low debugging production efficiency of televisions and displays in the prior art, the need of two HDMI wires and frequent tool replacement are solved.

Drawings

In order to more clearly illustrate the utility model or the solutions of the prior art, a brief description will be given below of the drawings used in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings can be obtained from them without the inventive effort of a person skilled in the art.

FIG. 1 is a diagram of a CH341 communication protocol conversion circuit of a white balance debug circuit supporting IIC and RS232 signal conversion according to the present utility model;

FIG. 2 is a diagram of a communication combining circuit of the white balance debug circuit supporting IIC and RS232 signal conversion according to the present utility model.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-2, the white balance debugging circuit supporting IIC and RS232 signal conversion provided by the utility model comprises a CH341 communication protocol conversion circuit, a communication merging circuit and a power supply, wherein the input end of the CH341 communication protocol conversion circuit is provided with a power interface and a USB interface, the input end of the CH341 communication protocol conversion circuit is connected with a PC control end through the USB interface, the input end of the CH341 communication protocol conversion circuit is connected with the power supply through the power interface, the output end of the CH341 communication protocol conversion circuit is provided with a UART RS232 signal output interface and an IIC SPI signal output interface, the input end of the communication merging circuit is provided with a UART RS232 signal input interface and an IIC SPI signal input interface, the UART RS232 signal output interface is connected with the UART RS232 signal input interface, the IIC SPI signal output interface is connected with the IIC SPI signal input interface, and the output end of the communication merging circuit is connected with a debugged display. In this embodiment, the CH341 communication protocol conversion circuit can convert the UART RS232 signal or the IIC SPI signal sent by the PC control end and then input the UART RS232 signal or the IIC SPI signal to the communication merging circuit, and select an adaptive output interface to output the UART RS232 signal and the IIC SPI signal to the debugged display to finish white balance debugging, and can implement white balance debugging by only plugging 1 HDMI line into one communication merging circuit, thereby greatly saving operation time compared with the existing mode of plugging 2 HDMI lines in white balance debugging, realizing switching compatibility of the UART RS232 signal and the IIC SPI signal, avoiding potential safety hazards caused by frequent tool replacement, and greatly improving debugging production efficiency of televisions and displays.

As shown in FIG. 1, the CH341 communication protocol conversion circuit is provided with a communication protocol conversion chip IC, the model of the communication protocol conversion chip IC is CH341, the communication protocol conversion chip IC is provided with a communication protocol selection interface J2, wherein the communication protocol conversion chip IC is provided with 28 pins, the communication protocol selection interface J2 is provided with 3 pins, when the 1 st pin of the communication protocol selection interface J2 is connected with the 2 nd pin of the communication protocol selection interface J2, the communication protocol conversion chip IC is connected with a UART RS232 signal input interface through a UART RS232 signal output interface, when the 2 nd pin of the communication protocol selection interface J2 is connected with the 3 rd pin of the communication protocol selection interface J2 through an IIC SPI signal output interface, the communication protocol conversion chip IC is connected with a power interface J1 through an IIC SPI signal output interface, the CH341 communication protocol conversion circuit is also provided with a capacitor C1, the power interface J1 is provided with 3 pins, the 1 st pin and the 2 nd pin of the power interface J1 are respectively connected with the 28 th pin of the communication protocol conversion chip IC and the 9 th pin of the communication protocol conversion chip IC, the 3 rd pin of the power interface J1 is grounded through a capacitor C1, when the 1 st pin and the 2 nd pin of the power interface J1 are connected, the power interface J1 outputs 3.3V voltage VCC, when the 2 nd pin of the power interface J1 is connected with the 3 rd pin, the power interface J1 outputs 5V voltage VCC, the UART RS232 signal output interface is a UART RS232 signal output interface J3, the UART RS232 signal output interface J3 is provided with 4 pins, the 1 st pin is connected with the power interface J1 to output voltage VCC, the 4 th pin is grounded, the 2 nd pin and the 3 rd pin are connected with the 24 th pin and the UART RS232 signal input interface of the communication protocol conversion chip IC, the IIC SPI signal output interface is IIC SPI signal output interface J4, the IIC SPI signal output interface J4 is provided with 4 pins, the 1 st pin is connected with the output voltage VCC of the power interface J1, the 4 th pin is grounded, and the 2 nd and 3 rd pins are connected with the 24 th and 23 rd pins of the communication protocol conversion chip IC and the IIC SPI signal input interface. In this embodiment, the USB interface of the CH341 communication protocol conversion circuit is connected to the USB of the PC, the communication protocol conversion chip IC implements conversion of UART RS232 signals and IIC SPI signals, according to the communication protocol required for white balance debugging of the pipeline, the UART RS232 signal communication is required to be connected to the 1-2 pins of the communication protocol selection interface J2, the IIC SPI signal communication is required to be connected to the 2-3 pins of the communication protocol selection interface J2, the communication protocol selection interface J2 is integrated with the communication protocol conversion chip IC, and is mainly used as a function switch, the UART RS232 signal output interface J3 and the IIC SPI signal output interface J4 are connected to the 24 th and 23 th pins of the communication protocol conversion chip IC and the UART RS232 signal input interface J2 of the communication combining circuit, and the IIC SPI signal output interface J4 is connected to the 24 th and 23 th pins of the communication protocol conversion chip IC and the J1 of the communication combining circuit.

As shown IN FIG. 2, the UART RS232 signal input interface is a UART RS232 signal input interface J2, the UART RS232 signal input interface J2 is provided with 4 pins, the 2 nd and 3 pins are connected with the 24 th and 23 th pins of the communication protocol conversion chip IC and the 2 nd and 3 rd pins of the UART RS232 signal output interface J3, the IIC SPI signal input interface is an IIC SPI signal input interface J1, the IIC SPI signal input interface J1 is provided with 4 pins, the 2 nd and 3 rd pins are connected with the 24 th and 23 nd pins of the communication protocol conversion chip IC and the 2 nd and 3 nd pins of the IIC SPI signal output interface J4, the communication merging circuit is provided with an HDMI-IN interface and an HDMI-OUT interface which are fixedly connected, the HDMI-IN interface is provided with 19 pins, the 15 th and 16 th pins are connected with the 2 nd and 3 nd pins of the UART RS232 signal input interface J2, the 3 nd pins of the UART SPI input interface J1, the VGA-OUT interface is provided with 15 th pins, and the 12 th pins of the HDMI-IN interface is connected with the IIC SPI-IN interface. IN the embodiment, the communication merging circuit, HDMI IN is used for signal access of HDMI signal source, HDMI OUT is accessed to a display to be debugged of white balance debugging, and UART RS232 signal and IIC SPI signal are accessed through pins 15 and 16 of HDMI-IN, so that image and communication transmission is realized; VGA-IN is used for the signal access of VGA signal source, VGA-OUT is accessed to the display to be debugged of white balance, and because UART RS232 signal and IIC SPI signal are accessed through pins 12 and 15 of VGA-IN, the image and communication transmission is realized.

As can be seen from the above, the utility model provides a white balance debugging circuit supporting conversion of IIC and RS232 signals, which is characterized in that by setting a CH341 communication protocol conversion circuit, a communication merging circuit and a power supply, which are mutually matched, the CH341 communication protocol conversion circuit can convert UART RS232 signals or IIC SPI signals sent by a PC control end and then input the converted UART RS232 signals or IIC SPI signals to the communication merging circuit to select an adaptive output interface to output the converted UART RS232 signals or IIC SPI signals to a debugged display to finish white balance debugging, and the UART RS232 signals and IIC SPI signals can be combined and input to one communication merging circuit to realize that only 1 HDMI line is plugged, thus the white balance debugging can be finished.

The above embodiments are preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, which includes but is not limited to the embodiments, and equivalent modifications according to the present utility model are within the scope of the present utility model.

Claims (9)

1. A white balance debugging circuit supporting IIC and RS232 signal conversion is characterized in that: the intelligent debugging device comprises a CH341 communication protocol conversion circuit, a communication merging circuit and a power supply, wherein the input end of the CH341 communication protocol conversion circuit is provided with a power interface and a USB interface, the input end of the CH341 communication protocol conversion circuit is connected with a PC control end through the USB interface, the input end of the CH341 communication protocol conversion circuit is connected with the power supply through the power interface, the output end of the CH341 communication protocol conversion circuit is provided with a UARTRS232 signal output interface and an IICSPI signal output interface, the input end of the communication merging circuit is provided with a UARTRS232 signal input interface and an IICSPI signal input interface, the UARTRS232 signal output interface is connected with the UARTRS232 signal input interface, the IICSPI signal output interface is connected with the IICSPI signal input interface, the output end of the communication merging circuit is connected with a debugged display, and the UARTRS232 signal or the IICSPI signal sent by the PC control end can be converted and then input to the output interface in the communication merging circuit, which is selected and adapted, and the debugged display is completed.

2. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 1 wherein: the CH341 communication protocol conversion circuit is provided with a communication protocol conversion chip IC, the model of the communication protocol conversion chip IC is CH341, the communication protocol conversion chip IC is provided with a communication protocol selection interface J2, wherein the communication protocol conversion chip IC is provided with 28 pins, the communication protocol selection interface J2 is provided with 3 pins, when the 1 st pin of the communication protocol selection interface J2 is connected with the 2 nd pin of the communication protocol selection interface J2, the communication protocol conversion chip IC is connected with the UARTRS232 signal input interface through the UARTRS232 signal output interface, when the 2 nd pin of the communication protocol selection interface J2 is connected with the 3 rd pin of the communication protocol selection interface J2, and the communication protocol conversion chip IC is connected with the IICSPI signal input interface through the IICSPI signal output interface.

3. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 2 wherein: the CH341 communication protocol conversion circuit is further provided with a capacitor C1, the power interface is a power interface J1, the power interface J1 is provided with 3 pins, the 1 st pin and the 2 nd pin of the power interface J1 are respectively connected with the 28 th pin of the communication protocol conversion chip IC and the 9 th pin of the communication protocol conversion chip IC, the 3 rd pin of the power interface J1 is grounded through the capacitor C1, when the 1 st pin and the 2 nd pin of the power interface J1 are connected, the power interface J1 outputs 3.3V voltage VCC, when the 2 nd pin and the 3 rd pin of the power interface J1 are connected, and the power interface J1 outputs 5V voltage VCC.

4. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 3 wherein: the UARTRS232 signal output interface is a UARTRS232 signal output interface J3, the UARTRS232 signal output interface J3 is provided with 4 pins, the 1 st pin is connected with the power interface J1 to output voltage VCC, the 4 th pin is grounded, and the 2 nd and 3 rd pins are connected with the 24 th and 23 rd pins of the communication protocol conversion chip IC and the UARTRS232 signal input interface.

5. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 4 wherein: the IICSPI signal output interface is an IICSPI signal output interface J4, the IICSPI signal output interface J4 is provided with 4 pins, the 1 st pin is connected with the output voltage VCC of the power interface J1, the 4 th pin is grounded, and the 2 nd pin and the 3 rd pin are connected with the 24 th pin and the 23 rd pin of the communication protocol conversion chip IC and the IICSPI signal input interface.

6. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 5 wherein: the UARTRS232 signal input interface is a UARTRS232 signal input interface J2, the UARTRS232 signal input interface J2 is provided with 4 pins, and pins 2 and 3 are connected with pins 24 and 23 of the communication protocol conversion chip IC and pins 2 and 3 of the UARTRS232 signal output interface J3.

7. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 6 wherein: the IICSPI signal input interface is an IICSPI signal input interface J1, the IICSPI signal input interface J1 is provided with 4 pins, and pins 2 and 3 are connected with pins 24 and 23 of the communication protocol conversion chip IC and pins 2 and 3 of the IICSPI signal output interface J4.

8. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 7 wherein: the communication merging circuit is provided with an HDMI-IN interface and an HDMI-OUT interface which are fixedly connected, the HDMI-IN interface is provided with 19 pins, and the 15 th pin and the 16 th pin are connected with the 2 nd pin and the 3 rd pin of the UARTRS232 signal input interface J2 and the 2 nd pin and the 3 rd pin of the IICSPI signal input interface J1.

9. The white balance debug circuitry supporting IIC and RS232 signal conversion of claim 8 wherein: the communication merging circuit is provided with a VGA-IN interface and a VGA-OUT interface which are fixedly connected, the VGA-IN interface is provided with 15 pins, and pins 12 and 15 are connected with pins 2 and 3 of the UARTRS232 signal input interface J2 and pins 2 and 3 of the IICSPI signal input interface J1.