Debugging circuit based on HDMI interface and HDMI interface equipment

The utility model discloses a debugging circuit based on an HDMI interface and HDMI interface equipment, the debugging circuit based on the HDMI interface is connected with the HDMI interface and a control chip, and the debugging circuit based on the HDMI interface comprises a switching module and a level conversion module; the switching module is respectively connected with the HDMI interface and the level conversion module, and is used for outputting a detection signal to switch serial port communication and HDMI communication or to switch I2C communication and HDMI communication; and the level conversion module is respectively connected with the switching module, the HDMI interface and the control chip, and is used for completing transmission of a signal level according to the detection signal so as to realize serial port communication and I2C communication. According to the utility model, a serial port communication function and an I2C communication function are simultaneously realized in a serial port de