| 摘要 |
PURPOSE:To prepare easily a test sequence, and to execute coping even when abnormality is generated, by defining a node having a layer, and providing a control table in accordance with the node concerned, so that a communication between said nodes and a communication between said node and a device to be tested can be executed. CONSTITUTION:In a testing tool system 2', a coupling test of a node A of a divice to be tested 1 can be executed by adopting a conception of a pseudo link, for instance, such as between a node B and C, between pseudo nodes. Control tables 6B, 6C corresponding to the node defines an attribute of the node. A data to a node B from A is checked by B, and inputted to an application level of B, but a data to C from A is checked by DLC and TL in B, it is known by seeing an address of a TL header that said data is addressed to C, and it is transferred again to DLC of C through a pseudo link 5 from DLC. In case the nodes C and A execute a communication, C knows by a definition of a circuit that it will do that a data addressed to A is also sent to B, and sends the data to B. In this case, in case of the pseudo link, the data of a transmitting queue of C is reconnected to a receiving queue of B, and B cope with it in the same way as a transmission from an actual link. As a result, when the address is read at the time of its delivery to TL, it is known that the data is addressed to A, therefore, it is sent out to an actual link 4 toward A from DLC. |
