CN217880290U

CN217880290U - FPGA prototype verification platform of HDMI TX controller

Info

Publication number: CN217880290U
Application number: CN202222219231.4U
Authority: CN
Inventors: 罗远彦
Original assignee: Icube Corp ltd
Current assignee: Icube Corp ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-22
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a platform is verified to FPGA prototype of HDMI TX controller, including FPGA chip, UART unit, cable driver, HDMI socket and power supply unit, the FPGA chip with the two-way interface connection of UART unit, the FPGA chip with cable driver interface connection, the cable driver with HDMI socket interface connection, power supply unit does respectively the FPGA chip the UART unit the cable driver power supply. The utility model discloses to traditional EDA emulation have that verification speed is slow, verify incomplete shortcoming, the FPGA prototype verification platform of the HDMI TX controller that provides can improve efficiency and the comprehensiveness verified.

Description

FPGA prototype verification platform of HDMI TX controller

Technical Field

The utility model relates to a chip prototype verifies technical field, especially relates to a FPGA prototype verification platform of HDMI TX controller.

Background

In recent years, the integrated circuit in China is in a rapid development period, and the requirement of chip verification is continuously increased. At present, the time consumed in the chip verification stage accounts for more than 60% of the whole chip design cycle, so how to improve the verification efficiency and comprehensiveness is a major problem faced by the current chip design. The traditional EDA simulation is a commonly used verification method at present, but has the defects of low verification speed and incomplete verification.

Some high-speed interfaces, such as HDMI TX, need to design a solution of HDMI TX PHY according to a selected FPGA chip when a large-scale complex integrated circuit design prototype is verified, otherwise, the high-speed interfaces cannot be operated on an FPGA prototype verification platform. The abandonment of HDMI TX validation on FPGA prototyping platforms poses a risk to integrated circuit design prototyping.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a FPGA prototype verification platform of HDMI TX controller for improve the efficiency and the comprehensiveness that the FPGA prototype was verified.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the FPGA prototype verification platform of the HDMI TX controller comprises an FPGA chip, a UART unit, a cable driver, an HDMI socket and a power supply unit, wherein the FPGA chip is in bidirectional interface connection with the UART unit, the FPGA chip is in interface connection with the cable driver, the cable driver is in interface connection with the HDMI socket, and the power supply unit is used for supplying power to the FPGA chip, the UART unit and the cable driver respectively.

In some embodiments, the FPGA chip includes a control module, a test pattern generation module, a test audio generation module, and an HDMI TX module, the control module is respectively bidirectionally connected to the UART unit and the HDMI TX module, an output I2C of the control module is connected to the cable driver, the control module is connected to the test pattern generation module, the HDMI TX module is respectively interfaced to the test pattern generation module and the test audio generation module, and an output of the HDMI TX module is connected to the cable driver.

In some embodiments, the HDMI TX module comprises an HDMI TX controller, a Serdes IP, and a conversion module for interface signal matching between the HDMI TX controller and the Serdes IP.

In some embodiments, the cable driver is chip DP159.

The utility model has the advantages that: have to traditional EDA emulation that verification speed is slow, verify incomprehensible shortcoming, the utility model discloses a Field Programmable Gate Array (FPGA) prototype verification platform of HDMI TX controller can improve efficiency and the comprehensiveness verified.

Drawings

Fig. 1 is a schematic diagram of an FPGA prototype verification platform structure and connection relationship of an HDMI TX controller according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an FPGA chip according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an original HDMI TX module according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an HDMI TX module according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1, an FPGA prototype verification platform of HDMI TX controller includes an FPGA chip, a UART unit, a cable driver, an HDMI socket, and a power supply unit, the FPGA chip is connected to a bidirectional interface of the UART unit, the FPGA chip is connected to an interface of the cable driver, the cable driver is connected to an interface of the HDMI socket, the power supply unit is respectively the FPGA chip, the UART unit, the cable driver supplies power.

In a preferred embodiment, referring to fig. 2, the FPGA chip includes a control module, a test pattern generation module, a test audio generation module, and an HDMI TX module, where the control module is respectively connected to the UART unit and the HDMI TX module in two directions, an output I2C of the control module is connected to the cable driver (not shown in the figure), the control module is connected to the test pattern generation module, the HDMI TX module is respectively connected to the test pattern generation module and the test audio generation module through interfaces, and an output of the HDMI TX module is connected to the cable driver (not shown in the figure).

The HDMI TX controller to be verified is in an original HDMI TX module, as shown in fig. 3, the original HDMI TX module is composed of an HDMI TX controller and an HDMI TX PHY, the original HDMI TX module obtains physical data of the display through a display data channel, and input signals of the original HDMI TX module include a video signal, an audio signal, a control signal and a hot plug signal; the output signal of the original HDMI TX module comprises 4 pairs of differential signals including a TMDS data channel 0, a TMDS data channel 1, a TMDS data channel 2 and a TMDS clock channel; the interface between the HDMI TX controller and the HDMI TX PHY contains a reset signal, a system clock signal, a control signal, a transmit data signal, a hot plug detect signal, and an Rx detect signal.

In the preferred embodiment, serdes IP on the FPGA chip is used to replace HDMI TX PHY, and a conversion module is provided to perform the matching of interface signals between the HDMI TX controller and Serdes IP. Therefore, the HDMI TX module at this time includes an HDMI TX controller, a Serdes IP, and a conversion module for performing interface signal matching between the HDMI TX controller and the Serdes IP, as shown in fig. 4, an interface of the HDMI TX controller to the conversion module includes a reset signal, a system clock signal, a control signal, a transmission data signal, a hot plug detection signal, and an Rx detection signal; the interface of the Serdes IP butt joint conversion module is provided with a reset signal, a clock signal and a sending data signal.

In a preferred embodiment, the cable driver is chip DP159.

The utility model provides a FPGA prototype verification platform of HDMI TX controller, specific working method has:

the FPGA prototype verification platform of the HDMI TX controller comprises an FPGA field programmable gate array chip, a UART unit, a Cable Driver (DP 159), an HDMI socket and a power supply unit, wherein the power supply unit supplies power to the FPGA chip, the UART part and the Cable Driver (DP 159).

The FPGA chip consists of a control module, a test pattern generation module, a test audio generation module and an HDMI TX module, wherein the UART input of the control module is connected with a UART part outside the FPGA chip; one path of output I2C of the control module is connected with a Cable Driver (DP 159) outside the FPGA chip; the HDMI TX output of the HDMI TX module is connected with a Cable Driver (DP 159) outside the FPGA chip. The embodiment can configure the test chart generation module through the UART interface to generate the required test chart, configure the register of the HDMI TX module, and configure the register of the Cable Driver (DP 159).

To sum up, have to traditional EDA emulation and verify that speed is slow, verify incomplete shortcoming, the utility model discloses a FPGA prototype verification platform of HDMI TX controller can improve efficiency and the comprehensiveness of verifying.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The FPGA prototype verification platform of the HDMI TX controller is characterized by comprising an FPGA chip, a UART unit, a cable driver, an HDMI socket and a power supply unit, wherein the FPGA chip is connected with a bidirectional interface of the UART unit, the FPGA chip is connected with an interface of the cable driver, the cable driver is connected with an interface of the HDMI socket, and the power supply unit supplies power to the FPGA chip, the UART unit and the cable driver respectively.

2. The platform of claim 1, wherein the FPGA chip comprises a control module, a test pattern generation module, a test audio generation module, and an HDMI TX module, the control module is respectively bidirectionally connected to the UART unit and the HDMI TX module, an output I2C of the control module is connected to the cable driver, the control module is connected to the test pattern generation module, the HDMI TX module is respectively interfaced to the test pattern generation module and the test audio generation module, and an output of the HDMI TX module is connected to the cable driver.

3. The FPGA prototype validation platform of an HDMI TX controller according to claim 1, wherein the HDMI TX module comprises an HDMI TX controller, serdesIP and a conversion module for performing interface signal matching between the HDMI TX controller and the SerdesIP.

4. The FPGA prototype verification platform for HDMI TX controller of claim 1, wherein said cable driver is chip DP159.