{"id":4498,"date":"2025-05-20T09:01:21","date_gmt":"2025-05-20T00:01:21","guid":{"rendered":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/05\/20\/4498\/"},"modified":"2025-05-20T09:01:21","modified_gmt":"2025-05-20T00:01:21","slug":"a-%ec%a4%91%ec%95%99%eb%8c%80%ed%95%99%ea%b5%90-%eb%a7%88%ec%9d%b4%ed%81%ac%eb%a1%9c%ed%94%84%eb%a1%9c%ec%84%b8%ec%84%9c-%ec%9d%91%ec%9a%a9%ed%9a%8c%eb%a1%9c-%ec%84%a4%ea%b3%84%ec%8b%a4%ec%8a%b5","status":"publish","type":"post","link":"https:\/\/blog.agentsoft.co.kr\/index.php\/2025\/05\/20\/4498\/","title":{"rendered":"[A+] \uc911\uc559\ub300\ud559\uad50 \ub9c8\uc774\ud06c\ub85c\ud504\ub85c\uc138\uc11c \uc751\uc6a9\ud68c\ub85c \uc124\uacc4\uc2e4\uc2b5 \uacb0\uacfc\ubcf4\uace0\uc11c 5\uc8fc\ucc28"},"content":{"rendered":"

<\/p>\n

\ubaa9\ucc28<\/strong><\/p>\n

1. main.c\uc758 \uac01 \ud568\uc218\uac00 \ud558\ub294 \uc5ed\ud560\uc5d0 \ub300\ud558\uc5ec \uac04\ub2e8\ud788 \uc124\uba85\ud558\uc2dc\uc624.
\n2. \ud504\ub85c\uadf8\ub7a8\uc744 \uc2e4\ud589\ud558\uace0 3, 26, 32, 45\ub97c \uc785\ub825\ud560 \ub54c, \uac01\uac01 \uc5b4\ub5a4 \uacb0\uacfc\uac00 \uc608\uc0c1\ub418\ub294\uac00?
\n3. \ub9cc\uc57d shift \uc5f0\uc0b0\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc5c6\ub2e4\uba74, \uc5b4\ub5a4 \uc5f0\uc0b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uac19\uc740 \ud6a8\uacfc\ub97c \ub0bc \uc218 \uc788\ub294\uac00? \uc67c\ucabd\uc774\ub098 \uc624\ub978\ucabd\uc73c\ub85c 1bit\uc529 \uc774\ub3d9\ud558\ub294 \uacbd\uc6b0\uc5d0 \ub300\ud574 \uac01\uac01 \uc124\uba85\ud558\uc2dc\uc624.
\n4. \uc18c\uc2a4\ucf54\ub4dc\uc758 \ube48\uce78\uc744 \ucc44\uc6b0\uace0 \uc644\uc131\ub41c \uc18c\uc2a4\ucf54\ub4dc\ub97c \ucea1\ucc98\ud55c \uc0ac\uc9c4\uc744 \ucca8\ubd80\ud558\uc2dc\uc624. (\uc798 \uc2e4\ud589\ub418\ub294\uc9c0 \ud655\uc778\ud558\uace0 \ucca8\ubd80\ud574\uc8fc\uc138\uc694)<\/p>\n

\ubcf8\ubb38\ub0b4\uc6a9<\/strong><\/p>\n

1. main.c\uc758 \uac01 \ud568\uc218\uac00 \ud558\ub294 \uc5ed\ud560\uc5d0 \ub300\ud558\uc5ec \uac04\ub2e8\ud788 \uc124\uba85\ud558\uc2dc\uc624.
\n1. main()
\n file descriptor\ub97c \ucc38\uc870\ud55c \ud6c4, mapper \ud568\uc218\ub97c \uc774\uc6a9\ud574\uc11c LED\uc640 Dot matrix\ub97c mapping\ud55c\ub2e4. \uc774\ud6c4 LED\uc640 Dot matrix\ub97c \ucd08\uae30\ud654\ud558\uace0 inputter \ud568\uc218\uc5d0\uc11c TRUE\ub97c \ubc18\ud658\ud558\ub294 \ub3d9\uc548 \ud568\uc218\uac00 \uacc4\uc18d \uc2e4\ud589\ub418\ub2e4\uac00 False\ub97c \ubc18\ud658\ud558\uba74 mapping\uc744 \ud574\uc81c\ud558\uace0 \ucc38\uc870\ud55c fd\ub97c \ub2eb\uc740 \ud6c4 \ud568\uc218\uac00 \uc885\ub8cc\ub41c\ub2e4.<\/p>\n

2. mapper()
\n \uc774\uc804 \uc2e4\uc2b5\uc5d0\uc11c LED\ub97c \uc81c\uc5b4\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ud55c mmap \ud568\uc218\ub294 \uc5ec\ub7ec \uc778\uc790\ub97c \uc0ac\uc6a9\ud55c\ub2e4\ub294 \ubc88\uac70\ub85c\uc6c0\uc774 \uc788\ub2e4.<\/p>\n

\ucd9c\ucc98 : \ud574\ud53c\ucea0\ud37c\uc2a4<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\ubaa9\ucc28 1. main.c\uc758 \uac01 \ud568\uc218\uac00 \ud558\ub294 \uc5ed\ud560\uc5d0 \ub300\ud558\uc5ec \uac04\ub2e8\ud788 \uc124\uba85\ud558\uc2dc\uc624. 2. \ud504\ub85c\uadf8\ub7a8\uc744 \uc2e4\ud589\ud558\uace0 3, 26, 32, 45\ub97c \uc785\ub825\ud560 \ub54c, \uac01\uac01 \uc5b4\ub5a4 \uacb0\uacfc\uac00 \uc608\uc0c1\ub418\ub294\uac00? 3. \ub9cc\uc57d shift \uc5f0\uc0b0\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc5c6\ub2e4\uba74, \uc5b4\ub5a4 \uc5f0\uc0b0\uc744 \ud65c\uc6a9\ud558\uc5ec \uac19\uc740 \ud6a8\uacfc\ub97c \ub0bc \uc218 \uc788\ub294\uac00? \uc67c\ucabd\uc774\ub098 \uc624\ub978\ucabd\uc73c\ub85c 1bit\uc529 \uc774\ub3d9\ud558\ub294 \uacbd\uc6b0\uc5d0 \ub300\ud574 \uac01\uac01 \uc124\uba85\ud558\uc2dc\uc624. 4. \uc18c\uc2a4\ucf54\ub4dc\uc758 \ube48\uce78\uc744 \ucc44\uc6b0\uace0 \uc644\uc131\ub41c \uc18c\uc2a4\ucf54\ub4dc\ub97c \ucea1\ucc98\ud55c \uc0ac\uc9c4\uc744 \ucca8\ubd80\ud558\uc2dc\uc624. […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[6372,8024,8025,4194,8023],"class_list":["post-4498","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-a","tag-8024","tag-8025","tag-4194","tag-8023"],"_links":{"self":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/4498","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/comments?post=4498"}],"version-history":[{"count":0,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/posts\/4498\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/media?parent=4498"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/categories?post=4498"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.agentsoft.co.kr\/index.php\/wp-json\/wp\/v2\/tags?post=4498"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}