Patent ID: 7062754

Claim:
A method for performing a load flow test among a plurality of IEEE 1394 controllers, wherein said IEEE 1394 controllers are disposed on a plurality of interface cards individually, said method comprising the steps of: (a) initializing said interface cards and setting one of said interface cards as a master interface card and the other interface cards as slave interface cards; (b) said master interface card initializing a plurality of communication protocol packets while said slave interface cards send a plurality of first ready signals; (c) said master interface card sending said communication protocol packets to the slave interface cards for responding to said first ready signals; (d) said slave interface card sending a plurality of second ready signals for responding to the communication protocol packets sent by said master interface card; (e) said master interface card starting to perform said load flow test for responding to the second ready signals; (f) checking status of every interface card for confirming whether an error occurs or not and sending a plurality of check packets to the slave interface cards by said master interface card, wherein debugging is performed if said error occurs; (g) said slave interface cards sending a plurality of third ready signal for responding to the check packets; (h) said master interface card sending a plurality of confirm signals to said slave interface cards for responding to said third ready signals; and (i) said slave interface cards checking said test results for responding to said confirm signals; wherein steps (a) to (i) are performed sequentially.