| 摘要 |
PURPOSE:To perform programming and debugging in parallel by connecting corresponding to communication interfaces to respective CPUs or programming devices and connecting those communication interfaces mutually through a bus type communication line, and transferring data. CONSTITUTION:Central processing units CPUs 1-1 and 1-2 which require operation are selected with switches 3, and the indication of the operation to be performed is set. Those number and indication are converted into proper codes, which are sent to a communication interface 7-3 to transmit data through the communication line 6. Other communication interfaces 7-1, 7-2, and 7-4 check whether the received number coincides with respective switches 5, signify and store the corresponding indication in their buffer memories when the received number is coincident. Then indication control part 8-1 and 8-2 analyze the indication in the buffer memories in the communication interfaces 7-1 and 7-2 and code it properly together with the number of a programming device 2-1 as an indication transmitting origin to send the obtained code to the corresponding communication interfaces 7-1 and 7-2. |
