SAMSUNG UC-40401-GNAR5-1 4x40 CLCD Tutorial
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작성자 보리차 쪽지보내기 메일보내기 자기소개 아이디로 검색 전체게시물 작성일13-01-23 04:05 조회18,104회 댓글8건첨부파일
- ACM4004K.pdf (631.2K) 150회 다운로드 DATE : 2013-01-23 04:05:06
- Output.zip (1.3M) 81회 다운로드 DATE : 2013-01-23 04:05:06
본문
동작동영상 : http://youtu.be/QjYXfzAhIcM
Spectrum Analyzer Demo : http://youtu.be/Fmnt6WgXwiM
output.zip : source code & 작업사진 & 회로도
구현도구 : avr-gcc (WinAVR 20100110) 4.3.3
MCU : Atmega8 8Mhz
Datasheet http://www.atmel.com/images/doc2486.pdf
CLCD : SAMSUNG UC-40401-GNAR5-1 4x40 Character LCD
http://www.manmullsang.com/shop/item.php?it_id=1259133270
Datasheet : ACM4004K.pdf [첨부참조]
컨트롤러/드라이버 Datasheet : http://www.manmullsang.com/bbs/board.php?bo_table=file&wr_id=1690
핀넘버, 컨트롤러/드라이버, 사이즈가 동일한 데이터시트 첨부하였습니다(ACM4004K.pdf)
* 4x40은 상용으로 판매되는 Character LCD에서는 가장 큰 사이즈입니다
* 대용량(?) 이다 보니 컨트롤러가 2개 들어갑니다, 기존 소스에서 Chip Select 기능을 추가하였습니다
구동전압 : 5v
장점 : 2x16도 비싸서 한개,두개 겨우 쓰던때가 있었습니다, 한줄에 16자 밖에 표현못하다 보니
제약이 무척 많았죠, 하지만 40칸이 무려 4줄이나 되므로 넉넉히 표현가능합니다
계기판, 계측기, 장비등에 무척 유용하리라고봄 (실제로 4x40 주 사용처가 장비 모니터 대용임)
* 사람마다 틀리겠지만 저는 뉴스 RSS 연결해서 실시간 속보 속속 올라오게 해뒀는대 무척 유용합니다..
단점 : 백라이트가 없다
작업후기
제품 사용기를 보니 타이밍이 느리다는 이야기가 있더군요..
Character LCD는 내부클럭이 300Khz가 안되므로 Mhz,GHz대의 MCU나 CPU에 비해 느린 장치임에는
틀림없습니다, 하지만 아무리 느려도 육안으로 식별할정도로 느리진 않습니다
얼마나 느릴까? 라는 호기심이 발동해서 작업했습니다
참고로 첨부된 소스로는 1024문자 찍는대 0.04초 소요됩니다
느린지 여부는 Spectrum Analyzer Demo 동영상으로 판단하시기 바랍니다.
* 사용된 함수와 파라미터, 설명등 코멘트를 충실히 달아두었습니다 별도 메뉴얼없이 사용가능합니다
* 계측기에 사용된 사례 http://www.manmullsang.com/shop/item.php?it_id=1250210555
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나름이 쪽지보내기 메일보내기 자기소개 아이디로 검색 전체게시물 작성일output.zip 내의 SAMSUNG40401.pdf 에 오류가 있습니다.
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보리차 쪽지보내기 메일보내기 자기소개 아이디로 검색 전체게시물 작성일확인해보니 말씀대로 회로의 핀넘버가 개판이네요
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