| 摘要 |
PURPOSE:To make it possible to form an optimum program high in mass production effect while a test program is variously altered, by counting only the overhead time of a performed program by a timer. CONSTITUTION:When a test start signal (a) is inputted, a timer 24 begins to count a time and a central processing unit 3 accesses a memory apparatus 5 to decode a test program 4. When a test order is detected, a pattern start signal (b) is sent to a pattern generation part 6 not only to indicate the running start of the test pattern but also simultaneously to interrup the time counting of the timer 2 temporarily. When the pattern generation part 6 completes the running of a pattern, the timer 2 reopones the counting of a time by a completion signal (c). The above mentioned operation is repeated every when the central processing unit 3 detects the test order and, when a test completion order is detected, the operation of the timer 2 is stopped by the stop signal (d) from a control part 1 and an overhead time is counted. |
