Apparatus for transmitting packets using timer interrupt service routine

An apparatus for transmitting packets by using a timer interrupt service routine, the apparatus comprising:

• a central processing unit configured to stop at least one task, which is currently running, when a timer interrupt event set considering a packet transmission interval occurs, call a timer interrupt service routine, and resume the stopped at least one task when processing of the timer interrupt event is completed;
• a payload queue configured to provide a first-in first-out (FIFO) structure for enabling withdrawal of data at a front and insertion of data at a rear;
• a timer interrupt service routine configured to take out data from the front and generate a header when receiving a call to process the timer interrupt event from the central processing unit;
• and
• a communication unit configured to transmit, to a destination, a user datagram protocol (UDP) packet including the data taken out from the front and the header,
• wherein the timer interrupt service routine is further configured to be executed every time a timer interrupt event occurs to enable UDP packet transmission at equal intervals even while at least one task is processed, and
• wherein the central processing unit is further configured to process at least one task during a remaining time between packet transmission intervals except for a time required for transmission.