Testing system and testing method for a link control card

A testing method for a link control card (LCC), comprising:

• providing an array having a plurality of testing devices, each of the testing devices comprising a micro-controller unit (MCU);
• manually setting a unique address of each of the testing devices of the array;
• detecting the address of each of the testing devices, and storing the address respectively into the MCU of each of the testing devices;
• a host transmitting signals to the LCC;
• and distributing the signals to each of the testing devices through a middle plane (MP);
• the host transmitting a command set of a plurality of command sets to a testing device of the array, each of the command sets comprising settings for work voltage modes supplied to the LCC, signal integrity (SI) parameters, and a matching address corresponding to one of the addresses;
• the testing device of the array checking the matching address of the command set with the stored address therein;
• when the address of the command set match with the stored address of the testing device, the testing device of the array will set a work voltage mode of the LCC;
• and
• the testing device detecting SI of the signals, and returns a result.

A method for testing linkage of an electronic device, comprising the steps of:

• electrically connecting a plurality of testing devices to a link control unit of an electronic device respectively;
• electrically connecting said plurality of testing devices in series to data-communicate each of said plurality of testing devices with another serially neighboring one of said plurality of testing devices;
• assigning an address exclusively for said each of said plurality of testing devices;
• transmitting test signals to said link control unit of said electronic device;
• transmitting a command set to said each of said plurality of testing devices by means of identifying another address contained in said command set with said assigned address;
• and
• retrieving a test result from said each of said plurality of testing devices based on said identified another address when said test result is available to identify a current linking status between said link control unit and said each of said plurality of testing devices due to transmission of said test signals therebetween.