KR950029917A

KR950029917A - Printer Data Transmission Method

Info

Publication number: KR950029917A
Application number: KR1019940008019A
Authority: KR
Inventors: 도락규
Original assignee: 이헌조; 엘지전자 주식회사
Priority date: 1994-04-16
Filing date: 1994-04-16
Publication date: 1995-11-24

Abstract

본 발명은 프린터의 데이타 전송방법에 관한 것으로서, PC에서 프린터를 사용하기 원할때 PC는 인터럽트 신호를 출력한 후 해체하는 제1단계와, 상기 프린터는 인터럽트 신호를 입력받아 프린터가 동작 중이라는 BUSY 신호를 PC로 출력한 후 소거하는 제2단계와, 데이타를 입력받아 버퍼에 저장한 후 버퍼에 빈 공간이 남았는지의 여부를 문의하는 제3단계와, 상기 버퍼에 빈 공간이 남았으면 버퍼의 주소를 검사한 후 다음 주소를 세팅하며, 버퍼에 빈 공간이 없으면 버퍼에 빈 공간이 없음을 표시하고 인터럽트 디스에이블 신호를 출력하는 제4단계를 포함하며 PC에서 프린터로 데이타를 전송할 때 전송시간을 상당히 단축할 수 있다는 효과가 있다.The present invention relates to a data transmission method of a printer, the first step of dismantling the PC after outputting an interrupt signal when the user wants to use the printer in the PC, and the printer receives the BUSY signal that the printer is in operation by receiving the interrupt signal A second step of outputting to the PC and then erasing; a third step of receiving data and storing the data in the buffer and inquiring whether or not there is empty space in the buffer; After the test, set the next address, and if there is no free space in the buffer, include a fourth step to indicate that there is no free space in the buffer and output an interrupt disable signal, which significantly reduces the transmission time when sending data from the PC to the printer. The effect is that you can.

Description

Printer Data Transmission Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 STROBE*신호 및 BUSY 신호의 타이밍도, 제2도는 프린터의 데이타 전송기의 구성도, 제4도는 본 발명에 의한 프린터의 데이타 전송방법의 흐름도이다.1 is a timing diagram of a STROBE * signal and a BUSY signal, FIG. 2 is a configuration diagram of a data transmitter of a printer, and FIG.

Claims

A first step in which the PC outputs a pulsed interrupt signal and then disassembles when there is data to be transmitted from the PC to the printer; and the printer receives an interrupt signal and outputs a BUSY signal indicating that the printer is operating to the PC. Step 2, the third step of receiving data and storing it in the buffer, and then inquiring whether or not there is free space left in the buffer, and if there is free space left in the buffer, checking the address of the buffer and setting the next address. And a fourth step of indicating that there is no free space in the buffer and outputting an interrupt disable signal if there is no free space in the buffer.

※ Note: The disclosure is based on the initial application.