Electronic device and method for correcting time-domain reflectometers

A non-transitory storage medium having stored thereon instructions that, when executed by a processor, cause the processor to perform a method of correcting a time-domain reflectometers (TDR), each of which has a plurality of channels, the method comprising:

• (a) connecting two channels of a TDR to a corrector using cables;
• (b) causing each of the two channels to transmit pulses;
• (c) zeroing parameters Step Deskew and Channel Deskew of the two channels;
• (d) measuring a first resistance value of one of the two channels, and simultaneously, measuring a second resistance value of the other one of the two channels;
• (e) adjusting the value of the parameter Step Deskew of one of the two channels upon the condition that a difference between the first resistance value and the second resistance value is beyond a first predetermined tolerance;
• (f) repeating steps (d) and (e) until the difference between the first resistance value and the second resistance value is within the first predetermined tolerance;
• (g) sending a message containing notification of the disconnection of the cables and the corrector;
• (h) measuring a first time of achieving a resistance value of one of the two channels, and measuring a second time of achieving the same resistance value, after the cables and the corrector have been disconnected;
• (i) adjusting the value of the parameter Channel Deskew of one of the two channels upon the condition that a difference between the first time and the second time is beyond a second predetermined tolerance;
• (j) repeating steps (h) and (i) until the difference between the first time and the second time is within the second predetermined tolerance;
• (k) repeating steps from (a) to (j) until none of the TDR channels needs to be corrected;
• and
• (l) displaying the adjusted values of the parameters Step Deskew and Channel Deskew of all the channels through a display unit.

An electronic device, the electronic device being connected with a time-domain reflectometer (TDR), the TDR having a plurality of channels, the electronic device comprising:

• at least one processor;
• storage unit;
• a display unit;
• 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 channel enablement module to enable two channels, which are connected to a corrector by cables, of the TDR to transmit pulses;
• a parameter setting module to zero parameters Step Deskew and Channel Deskew of the two channels;
• a measurement module to measure a first resistance value of one of the two channels, and simultaneously, measure a second resistance value of the other one of the two channels, during the two channels are connected to the corrector by the cables, and further to measure a first time of achieving a resistance value of one of the two channels, and measure a second time of achieving the same resistance value of the other one of the two channels, after the cables and the corrector have been disconnected;
• a comparison module to compare a difference between the first resistance value and the second resistance value with a first predetermined tolerance, and to compare a difference between the first time and the second time with a second predetermined tolerance;
• a parameter setting module to adjust the value of the parameter Step Deskew of one of the two channels, upon the condition that the difference between the first resistance value and the second resistance value is beyond the first predetermined tolerance, and to adjust the values of the parameter Channel Deskew of one of the two channels upon the condition the difference between the first time and the second time is beyond the second predetermined tolerance;
• and
• a display module to display the adjusted values of the parameters Step Deskew and Channel Deskew of all the channels through the display unit, after all the channels have been corrected.