Data processing device and method for analyzing stability of data processing device

A non-transitory storage medium having stored thereon instructions that, when executed by a processor, cause the processor to perform a method for analyzing stability of a data processing device, the method comprising:

• receiving one or more sets of equalization parameters and a predetermined bit error ratio (BER) from an input device of the data processing device;
• loading an output file which includes times and voltages of data points that represent a waveform of an electronic signal generated by the data processing device;
• reading the times and the voltages from the output file;
• selecting an output type of the electronic signal to obtain a time interval of outputs of the electronic signal;
• selecting optimal equalization parameters from the one or more sets of equalization parameters by computation according to the times, the voltages at the times, and the time interval;
• computing a sample interval according to the predetermined BER and the time interval of outputs of the electronic signal;
• computing interfering voltages of the electronic signal according to the optimal equalization parameters and the sample interval, and computing frequencies of the interfering voltages;
• selecting a frequency which is equal to the predetermined BER, and obtaining the interfering voltages corresponding to a selected frequency;
• establishing an eye pattern using the interfering voltages corresponding to the selected frequency;
• determining if the data processing device has good stability by comparing the “eye” in the eye pattern with a predetermined voltage area;
• and
• outputting an analysis result of the stability of the data processing device.

A data processing device, comprising:

• at least one processor;
• storage device;
• one or more programs that are stored in the storage unit and are executed by the at least one processor, the one or more programs comprising:
• a receiving module that receives one or more sets of equalization parameters and a predetermined bit error ratio (BER) from an input device of the data processing device;
• a load module that loads an output file which includes times and voltages of data points that represent a waveform of an electronic signal generated by the data processing device;
• a reading module that reads the times and the voltages from the output file;
• a selection module that selects an output type of the electronic signal to obtain a time interval of outputs of the electronic signal;
• a computation module that selects optimal equalization parameters from the one or more sets of equalization parameters by computation according to the times, the voltages at the times, and the time interval, computes a sample interval according to the predetermined BER and the time interval of outputs of the electronic signal, computes interfering voltages of the electronic signal according to the optimal equalization parameters and the sample interval, computes frequencies of the interfering voltages, selects a frequency which is equal to the predetermined BER, and obtains the interfering voltages corresponding to a selected frequency;
• an establishing module that establishes an eye pattern using the interfering voltages corresponding to the selected frequency;
• a comparison module that determines if the data processing device has good stability by comparing the “eye” in the eye pattern with a predetermined voltage area;
• and
• an outputting module that outputs an analysis result of the stability of the data processing device.