Link training in a video processing system

A method for training a main data link in a video processing system, the main data link having at least one lane, the method comprising:

• setting an initial value for a voltage swing of the lanes of the main data link;
• conducting link training of the main data link at the initial value of voltage swing;
• determining if the link training was successful;
• entering a normal operation mode of the video processing system if link training was successful;
• and
• if link training was not successful at the initial value of voltage swing, iteratively:
• incrementing the value of voltage swing to a current value;
• conducting link training;
• determining if link training was successful;
• entering the normal operation mode if link training was successful;
• comparing, if link training was not successful, the current value of voltage swing to a predetermined threshold value of voltage swing;
• incrementing the current value of voltage swing if the current value of voltage swing does not exceed the threshold value;
• and
• ending link training if the current value of voltage swing exceeds the threshold value.

At least one non-transitory machine readable medium having instructions stored therein that, in response to being executed on an electronic device having a main video data link that includes at least one data lane, cause the electronic device to:

• set an initial value for a lane voltage swing;
• conduct link training of the main data link at the initial value of lane voltage swing;
• determine if link training was successful;
• and
• iteratively, if link training at the initial value of lane voltage swing was not successful:
• increment the value of lane voltage swing to a predetermined value;
• determine whether the predetermined value of lane voltage swing exceeds a threshold value, and end link training if the predetermined value of lane voltage exceeds the threshold value;
• and
• if the predetermined value of lane voltage swing does not exceed the threshold value, conduct link training at the predetermined value of lane voltage swing until link training is successful or until a predetermined number of attempts at the predetermined value of lane voltage swing fail to successfully train the link.