METHOD FOR CONSTANTLY READING DATA OF SUB COMMUNICATION BOARD ON MAIN COMMUNICATION BOARD USING MORE THAN TWO SUB COMMUNICATION BOARDS

摘要

PURPOSE: A method for constantly reading data of a sub communication board on a main communication board using more than two sub communication boards is provided to constantly read the data of the sub communication board in case that various sub communication boards are used, and efficiently use a buffer limited by a limited processing speed/memory of the main communication board. CONSTITUTION: The data is maximally read from all sub communication boards. A maximum number to process the read data is fixed. The data number of all boards is found before the data of the sub communication board is read. It is judged that the data number is larger or smaller than the maximum number. The data is read as much as the number multiplying the fixed number by the data number of each sub communication board. The data remained after reading is processed through the previous processes by being added to the next added data.