US 2020/0348716 A1 · METHOD FOR CONFIGURING MASTER/SLAVE IN DOUBLE BOARD, AND BOARD THEREOF

Abstract

A method for setting a duplexed board to a master or slave board during initial booting and the board. According to an embodiment of the present invention, a method of setting duplexed boards to master/slave includes simultaneously inputting power to first and second boards which are duplexed in initial booting; generating, by the first and second boards, clocks individually when the power is input, counting, by each of the first and second boards, a number of the generated clocks when the power is input; transmitting, by each of the first and second boards, the counted number of clocks to a counterpart board and receiving a number of clocks counted by the counterpart board from the counterpart board on each clock generated; and comparing, by each of the first and second boards, the numbers of clocks transmitted and received on each clock, setting the board itself to a master board when the number of clocks of the broad itself is greater than that of the slave board, and setting the board itself to a slave board when the number of clocks of the broad itself is less than that of the slave board.

Claims14

Dependent claims

A duplexed board comprising:

a clock generator configured to generate a clock when power is supplied in initial booting;
a clock counter configured to count a number of clocks generated by the clock generator;
a communication unit configured to transmit the counted number of clocks to a counterpart board and receive a number of clocks of the counterpart board from the counterpart board;
and
a control unit configured to set, to a master board, a board having a larger number of clocks among the two numbers of clocks transmitted and received on each clock through the communication unit.

2 more elements

A method of setting duplexed boards to master/slave, the method comprising:

simultaneously inputting power to first and second boards which are duplexed in initial booting;
generating, by the first and second boards, clocks individually when the power is input;
counting, by each of the first and second boards, a number of the generated clocks when the power is input;
transmitting, by each of the first and second boards, the counted number of clocks to a counterpart board and receiving a number of clocks counted by the counterpart board from the counterpart board on each clock generated;
and
comparing, by each of the first and second boards, the numbers of clocks transmitted and received on each clock, setting the board itself to a master board when the number of clocks of the broad itself is greater than that of the slave board, and setting the board itself to a slave board when the number of clocks of the broad itself is less than that of the slave board.

3 more elements

Dependencies are inferred from the claim text.

Method for configuring master/slave in double board, and board thereof

Life of this patent

Method for configuring master/slave in double board, and board thereof

Life of this patent

Abstract

Claims14