{"id":713,"date":"2016-11-29T12:43:57","date_gmt":"2016-11-29T21:43:57","guid":{"rendered":"\/blog\/?p=713"},"modified":"2023-09-21T09:37:53","modified_gmt":"2023-09-21T00:37:53","slug":"beaglebone-black-gpio-%eb%8b%a4%eb%a3%a8%ea%b8%b0","status":"publish","type":"post","link":"https:\/\/hasu0707.duckdns.org\/blog\/?p=713","title":{"rendered":"Beaglebone Black GPIO \ub2e4\ub8e8\uae30"},"content":{"rendered":"\n

\ucd9c\ucc98 : <\/span>http:\/\/blog.aiui.com\/13<\/span><\/a><\/p>\r\n\r\n<\/span>


<\/p>\r\n\r\n<\/span>
1. \uac1c\uc694<\/span><\/font><\/td><\/tr><\/tbody><\/table>


\uc774\ubc88 \uae00\uc5d0\uc11c\ub294 BBB\uc5d0\uc11c GPIO\ub97c \ub2e4\ub8e8\ub294 \ubc29\ubc95\uc744 \uc815\ub9ac\ud574 \ub450\ub824\uace0 \ud569\ub2c8\ub2e4.<\/span>
BBB\uc5d0\uc11c GPIO\ub97c \ub2e4\ub8e8\ub294 \ubc29\ubc95\uc740 \uc5ec\ub7ec\uac00\uc9c0\uac00 \uc788\uc73c\ub098 \ubcf8 \uae00\uc5d0\uc11c\ub294 \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc624\ubc84\ub808\uc774\uc640 sys \uac00\uc0c1 \ub514\ub809\ud1a0\ub9ac\ub97c \uc774\uc6a9\ud574 \uc6d0\ud558\ub294 \ud540\uc744 GPIO\uc6a9\uc73c\ub85c \uc124\uc815\ud558\uace0 \ud14c\uc2a4\ud2b8 \ud558\ub294 \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span>

\uc774 \uae00\uc758 \ub0b4\uc6a9\ub4e4\uc740 \uc81c\uac00 \uc644\uc804\ud788 \uc774\ud574\ud558\uace0 \uc790\uc2e0\uc788\uac8c \uac15\uc88c\uc758 \uac1c\ub150\uc73c\ub85c \uc815\ub9ac\ud588\ub2e4\uae30 \ubcf4\ub2e4\ub294 '\uc774\ub807\uac8c \uc0ac\uc6a9\ud574 \ubd24\uc2b5\ub2c8\ub2e4' \ub77c\ub294 \uc815\ub3c4\uc758 \uc218\uc900\uc774\uace0, \uc81c \uc790\uc2e0\uc758 \uc815\ub9ac\ub85c\uc368\uc758 \uc758\ubbf8\uac00 \ub354 \uac15\ud558\ubbc0\ub85c \uadf8\uc800 \ucc38\uace0\ub9cc \ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.<\/span><\/strong><\/font>

<\/a><\/p>\r\n\r\n<\/span>
1) GPIO\ub780?<\/span><\/font><\/td><\/tr><\/tbody><\/table>


\uc774 \uae00\uc744 \ubcf4\uc2dc\ub824\ub294 \ub300\ubd80\ubd84\uc758 \ubd84\ub4e4\uc774 GPIO\uc5d0 \ub300\ud574 \uc798 \uc544\uc2dc\uaca0\uc73c\ub098 \ud639\uc5ec\ub77c\ub3c4 \uc0dd\uc18c\ud55c \ubd84\ub4e4\uc744 \uc704\ud574 \uac04\ub2e8\ud558\uac8c\ub9cc \uc5b8\uae09\uc744 \ud558\uba74, \uc124\uc815\uc5d0 \ub530\ub77c \uc785\ub825\/\ucd9c\ub825\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \uad6c\uc131\ub41c IO\ub97c \ub9d0\ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ucd9c\ub825\uc758 \uacbd\uc6b0\ub294 \ub9c8\uc9c0\ub9c9 \uac12\uc744 \uacc4\uc18d \uc720\uc9c0(latch)\ud558\uace0 \uc785\ub825\uc73c\ub85c \uc124\uc815\ud558\ub294 \uacbd\uc6b0\ub294 \ubc16\uc73c\ub85c \ubd80\ud130 \uc8fc\uc5b4\uc9c4 \uac12\uc744 \uadf8\ub300\ub85c \ubc1b\uc544\ub4e4\uc774\uae30 \uc704\ud574 \ud558\uc774\uc784\ud53c\ub358\uc2a4 \uc0c1\ud0dc\uac00 \ub41c\ub2e4\uace0 \ud569\ub2c8\ub2e4.<\/span>

\ubaa8\ub4e0 GPIO\uac00 \ub9cc\uc871\ud558\ub294 \uac83\uc778\uc9c0\ub294 \ubaa8\ub974\uaca0\uc73c\ub098, BBB\uc758 \uacbd\uc6b0 \uac8c\ub2e4\uac00 \uac01 IO\uc5d0 Pullup\/Pulldown\uc758 \uc885\ub958\uc640 \uc0ac\uc6a9 \uc5ec\ubd80\ub3c4 \uc124\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span>

\ud55c\ub9c8\ub514\ub85c \ub9d0\ud574\uc11c <\/span>\uc678\ubd80\uc758 \uc13c\uc11c\uc5d0\uc11c \uac12\uc744 \uc77d\uac70\ub098 \uc7a5\uce58\ub97c \uc81c\uc5b4\ud558\uae30 \uc704\ud574 \ub2e4\ubaa9\uc801\uc73c\ub85c \uc124\uacc4\ub41c IO<\/span><\/strong>\ub97c \ub9d0\ud569\ub2c8\ub2e4.<\/span>

\uc880 \ub354 \uc27d\uace0 \uc815\ud655\ud55c \uc124\uba85\uc744 \uc704\ud574 \ucc38\uace0\uc790\ub8cc\uc5d0 \ub9c1\ud06c\ub97c \ucd94\uac00\ud588\uc2b5\ub2c8\ub2e4.<\/span><\/strong><\/font>

<\/a><\/p>\r\n\r\n<\/span>
2) BBB\uc5d0\uc11c\uc758 GPIO<\/span><\/font><\/td><\/tr><\/tbody><\/table>


GPIO\uc758 \uac1c\ub150\uc740 \ucc28\uc774\uac00 \uc788\uc744 \uc218 \uc5c6\uaca0\uc73c\ub098, BBB\uc5d0\uc11c\ub294 \ud55c \uac00\uc9c0 \uc5b8\uae09\ud558\uace0 \ub118\uc5b4\uac00\uc57c \ud558\ub294 \ubb38\uc81c\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/span>
BBB\uc758 \ubcf4\ub4dc \uc704\uc5d0\ub294 \uc138\ub85c\ub85c \uc88c\uc6b0\uc5d0 46\ud540 \uad6c\uc131\uc758 <\/span>\ud655\uc7a5\uc6a9 \ud540 \ud5e4\ub354<\/span><\/strong> \ub4e4\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud5e4\ub354\ub4e4\uc744 \ubcf4\ud1b5 <\/span>P8<\/span><\/strong>(\uc6b0\uce21), <\/span>P9<\/span><\/strong>(\uc88c\uce21)\ub77c\uace0 \ubd80\ub985\ub2c8\ub2e4. \uac01 \ud540\uc740 \uc124\uc815\uc5d0 \ub530\ub77c 8\uac00\uc9c0 \uae30\ub2a5\uc744 \uac00\uc9c0\ub294 \uad6c\uc870\uc785\ub2c8\ub2e4. \ubaa8\ub4dc0 \ubd80\ud130 \ubaa8\ub4dc7\uae4c\uc9c0 8\uac00\uc9c0 \ubaa8\ub4dc\uc5d0 \ub530\ub77c \uadf8 \uae30\ub2a5\uc774 \ub2e4\ub985\ub2c8\ub2e4. \ubaa8\ub4e0 \ud540\uc774 GPIO\uc5d0 \uc0ac\uc6a9\ub420 \uc218 \uc788\ub294 \uac83\uc740 \uc544\ub2c8\uba70 \uac00\ub2a5\ud55c \ud540\ub4e4\uc758 \uacbd\uc6b0\ub3c4 <\/span>\ubaa8\ub4dc7\uc5d0\uc11c GPIO\ub85c \uc0ac\uc6a9<\/span><\/strong>\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac01 \ud540\uc774 \uae30\ubcf8\uc73c\ub85c \uc5b4\ub5a4 \ubaa8\ub4dc\ub85c \uc124\uc815\ub418\uc5b4 \uc788\ub294\uc9c0\ub294 \ubaa8\ub974\uaca0\uc73c\ub098 \uc6d0\ud558\ub294 \ud540\uc744 GPIO\ub85c \uc0ac\uc6a9\ud558\ub824\uba74 \ud574\ub2f9 \ud540\uc744 \ubaa8\ub4dc7\ub85c \ubcc0\uacbd\ud574 \uc8fc\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/span>

\ub2e4\uc74c \ud45c\ub294 \ubaa8\ub4dc7\ub85c \uc124\uc815\ud588\uc744 \ub54c\uc758 P8 \ud5e4\ub354\uc758 \ud540 \uae30\ub2a5 \uc911 \uc77c\ubd80\uc785\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
P8 \ud5e4\ub354<\/span><\/caption>
Mode7    <\/span><\/th># <\/span><\/th>Offset<\/span><\/th>Name    <\/span><\/th>Pin <\/span><\/th>Pin <\/span><\/th>Name     <\/span><\/th>Offset<\/span><\/th># <\/span><\/th>Mode7<\/span><\/th><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>DGND     <\/span><\/td>1  <\/span><\/td>2  <\/span><\/td>DGND     <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
gpio1[6] <\/span><\/td>6  <\/span><\/td>0x018 <\/span><\/td>GPIO1_6  <\/span><\/td>3  <\/span><\/td>4  <\/span><\/td>GPIO1_7  <\/span><\/td>0x01c <\/span><\/td>7  <\/span><\/td>gpio1[7]<\/span><\/td><\/tr>
gpio1[2] <\/span><\/td>2  <\/span><\/td>0x008 <\/span><\/td>GPIO1_2  <\/span><\/td>5  <\/span><\/td>6  <\/span><\/td>GPIO1_3  <\/span><\/td>0x00c <\/span><\/td>3  <\/span><\/td>gpio1[3]<\/span><\/td><\/tr>
gpio2[2] <\/span><\/td>66 <\/span><\/td>0x090 <\/span><\/td>TIMER4   <\/span><\/td>7  <\/span><\/td>8  <\/span><\/td>TIMER7   <\/span><\/td>0x094 <\/span><\/td>67 <\/span><\/td>gpio2[3]<\/span><\/td><\/tr>
gpio2[5] <\/span><\/td>69 <\/span><\/td>0x09c <\/span><\/td>TIMER5   <\/span><\/td>9  <\/span><\/td>10 <\/span><\/td>TIMER6   <\/span><\/td>0x098 <\/span><\/td>68 <\/span><\/td>gpio2[4]<\/span><\/td><\/tr>
gpio1[13]<\/span><\/td>45 <\/span><\/td>0x034 <\/span><\/td>GPIO1_13 <\/span><\/td>11 <\/span><\/td>12 <\/span><\/td>GPIO1_12 <\/span><\/td>0x030 <\/span><\/td>44 <\/span><\/td>gpio1[12]<\/span><\/td><\/tr>
gpio0[23]<\/span><\/td>23 <\/span><\/td>0x024 <\/span><\/td>EHRPWM2B <\/span><\/td>13 <\/span><\/td>14 <\/span><\/td>GPIO0_26 <\/span><\/td>0x028 <\/span><\/td>26 <\/span><\/td>gpio0[26]<\/span><\/td><\/tr>
gpio1[15]<\/span><\/td>47 <\/span><\/td>0x03c <\/span><\/td>GPIO1_15 <\/span><\/td>15 <\/span><\/td>16 <\/span><\/td>GPIO1_14 <\/span><\/td>0x038 <\/span><\/td>46 <\/span><\/td>gpio1[14]<\/span><\/td><\/tr>
...   <\/span><\/td>...<\/span><\/td>...<\/span><\/td>...   <\/span><\/td>...<\/span><\/td>...<\/span><\/td>...   <\/span><\/td>... <\/span><\/td>...<\/span><\/td>...<\/span><\/td><\/tr><\/tbody><\/table>


(\uc644\uc804\ud55c \ud14c\uc774\ube14\uc740 \uae00 \ub9c8\uc9c0\ub9c9\uc5d0 [\ubd80\ub85d]\uc744 \ucc38\uace0 \ud558\uc138\uc694)<\/span><\/font>

\uc774 \uae00\uc5d0\uc11c\ub294, \uc704\uc758 \ud45c\uc5d0\uc11c \ucd08\ub85d\uc0c9\uc73c\ub85c \ud45c\uc2dc\ud55c 11\ubc88 \ud540\uc744 \uc0ac\uc6a9\ud574\uc11c GPIO \ud14c\uc2a4\ud2b8\ub97c \ud569\ub2c8\ub2e4.<\/span>

\uadf8\ub7f0\ub370 \ucd5c\uadfc\uc758 \ub9ac\ub205\uc2a4 \ucee4\ub110\uc5d0\uc11c \uadf8 '\ubaa8\ub4dc \ubcc0\uacbd'\uc774\ub77c\ub294 \uc77c\uc744 \ud558\uae30\uac00 \uac04\ub2e8\ud558\uc9c0 \uc54a\uc544\uc84c\uc2b5\ub2c8\ub2e4. \ucee4\ub110 \ubc84\uc804 2.6\uc5d0\uc120\uac00 \ubd80\ud130 \ub4f1\uc7a5\ud55c <\/span>\ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac(Device Tree)<\/span><\/strong>\ub77c\ub294 \uac1c\ub150 \ub54c\ubb38\uc785\ub2c8\ub2e4. \uc6d0\ud558\ub294 \ud540\uc758 \ubaa8\ub4dc \ubcc0\uacbd\uc744 \ud558\ub824\uba74 <\/span>\ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc624\ubc84\ub808\uc774(Device Tree Overlay)<\/span><\/strong>\ub77c\ub294 \uc791\uc5c5\uc744 \ud574\uc57c \ud569\ub2c8\ub2e4. \uadf8\ub798\uc11c \uc774 \uae00\uc5d0\uc11c\ub294 \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac\uc758 \uac1c\ub150\uacfc \ub2e4\ub8e8\ub294 \ubc29\ubc95\ub3c4 \uac04\ub7b5\ud558\uac8c\ub098\ub9c8 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
3) BBB\uc758 GPIO \uc2e0\ud638 \uc804\uc555 \ub808\ubca8<\/span><\/font><\/td><\/tr><\/tbody><\/table>


\ucd5c\uadfc\uc758 \uc18c\ud615 \ud558\ub4dc\uc6e8\uc5b4 \ud50c\ub7ab\ud3fc\ub4e4\uc774 \uace0\uc131\ub2a5\ud654 \ub418\uba74\uc11c I\/O\uc5d0 3.3V\uc758 \uc804\uc555 \ub808\ubca8\uc744 \uc0ac\uc6a9\ud558\ub294 \ubc29\ud5a5\uc73c\ub85c \ubcc0\ud558\uace0 \uc788\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4. \uc544\ub9c8\ub3c4 \uba54\uc778 \uce69\uc758 \uc800\uc804\ub825 \uc124\uacc4\ub85c \ub3d9\uc791 \uc804\uc555\uc774 \ub0ae\uc544\uc9c4 \uac83\uc774 \uc774\uc720\ub77c\uace0 \uc0dd\uac01\ud569\ub2c8\ub2e4. BBB\uc758 \uacbd\uc6b0\ub3c4 3.3V I\/O \uc2e0\ud638 \ub808\ubca8\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. GPIO\ub85c \uc81c\uc5b4\ud558\ub294 \uc7a5\uce58\uac00 3.3V \ub85c \ub3d9\uc791 \uac00\ub2a5\ud558\uba74 \uc0c1\uad00 \uc5c6\uc9c0\ub9cc 5V\ub97c \ud544\uc694\ub85c \ud558\uba74 \uc911\uac04\uc5d0 <\/span>\ub808\ubca8 \ucee8\ubc84\ud130<\/span><\/strong>(3.3V <=> 5V \ubcc0\ud658\uae30)\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4.<\/span>

\uc81c\uac00 \ud14c\uc2a4\ud2b8 \ud55c \uacbd\uc6b0\ub3c4 5V \uc7a5\uce58\ub77c \ub808\ubca8 \ucee8\ubc84\ud130\ub97c \uc0ac\uc6a9\ud588\uc2b5\ub2c8\ub2e4. \uc800\ub294 Rorze \uc0ac\uc758 2\uc0c1 \uc2a4\ud14c\ud37c \ubaa8\ud130 \ub4dc\ub77c\uc774\ubc84\ub97c \uc0ac\uc6a9\ud574\uc57c \ud588\uae30\uc5d0 \ubd88\uac00\ud53c\ud55c \uacbd\uc6b0\uac00 \ub418\uaca0\uc2b5\ub2c8\ub2e4.<\/span>
\uba87 \uac1c\uc6d4 \uc804\uc5d0 \uad6c\uc785\ud574 \ub450\uc5c8\ub358 'NS-LS4' \ub77c\ub294 \ubaa8\ub378\uba85\uc758 4\ucc44\ub110 \uc591\ubc29\ud5a5 \ub808\ubca8 \ucee8\ubc84\ud130 \ubaa8\ub4c8\uc744 \uc774\uc6a9\ud588\uc2b5\ub2c8\ub2e4.<\/span>

\uc798\ubabb\ub41c \uc804\uc555 \ub808\ubca8\uc744 \uc0ac\uc6a9\ud558\ub294 \uacbd\uc6b0, \ucd9c\ub825\uc758 \uacbd\uc6b0\uc5d4 \uc7a5\uce58\uac00 \uc81c\ub300\ub85c \ub3d9\uc791\ud558\uc9c0 \uc54a\ub294 \uc815\ub3c4\ub85c \ub05d\ub0a0 \uc218 \uc788\uc73c\ub098, \uc785\ub825\uc758 \uacbd\uc6b0\ub294 BBB\uc758 \uba54\uc778 \uce69\uc774 \uc190\uc0c1\ub420 \uc218\ub3c4 \uc788\ub2e4\ub294 \uacbd\uace0\uac00 \uc788\uc73c\ubbc0\ub85c \uc808\ub300 \uc8fc\uc758\ud574\uc57c \ud569\ub2c8\ub2e4.<\/span><\/strong><\/font>


<\/a><\/p>\r\n\r\n<\/span>
2. \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac<\/span><\/font><\/td><\/tr><\/tbody><\/table>


\ub0b4\uc6a9\uc774 \ubc29\ub300\ud574\uc11c \uc644\uc804\ud55c \uc774\ud574\uc5d0 \uc774\ub974\uae30\uae4c\uc9c0\ub294 \uc0c1\ub2f9\ud55c \uc2dc\uac04\uc774 \ud544\uc694\ud558\uace0 \uc774\ub7f0 \ub2e8\ud3b8\uc801\uc778 \uae00 \ud558\ub098\ub85c \ubd88\uac00\ub2a5\ud560\uc9c0\ub3c4 \ubaa8\ub974\uaca0\uc2b5\ub2c8\ub2e4.<\/span>
\ub530\ub77c\uc11c \uc5ec\uae30\uc11c\ub294 \ub300\ub7b5\uc801\uc778 \uac1c\ub150\uacfc \ub2e4\uc74c \uc9c4\ud589\uc744 \uc704\ud574 \ud544\uc694\ud55c \uad6c\uc870\ub9cc \uc124\uba85\ud558\uace0 \ub118\uc5b4 \uac00\ub824 \ud569\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
1) \uac1c\ub150<\/span><\/font><\/td><\/tr><\/tbody><\/table>


\uacf5\ud1b5\uc801\uc73c\ub85c \ud558\uace0\uc788\ub294 \uc124\uba85\ub4e4\uc744 \ud1a0\ub300\ub85c \uc815\ub9ac\ud574 \ubcf4\uba74 \ub2e4\uc591\ud55c <\/span>\uc7a5\uce58\ub4e4\uc5d0 \ub300\ud55c \uc815\ubcf4\uc744 \uba85\uc2dc\ud558\uae30 \uc704\ud55c \uc790\ub8cc \uad6c\uc870<\/span><\/strong>\ub77c\uace0 \ud569\ub2c8\ub2e4.<\/span>
\ubd84\uc704\uae30\ub97c \ubcf4\uc544\ud558\ub2c8 \uc784\ubca0\ub514\ub4dc \uc7a5\uce58\ub4e4\uc774 \ub298\uc5b4\ub098\uba74\uc11c \uac01 \uc7a5\uce58\ub4e4\uc744 \uc6b4\uc601\uccb4\uc81c\uc5d0\uc11c \uc9c0\uc6d0\ud558\ub3c4\ub85d \ud558\uae30 \uc704\ud55c \ub4dc\ub77c\uc774\ubc84 \uc81c\uc791\uc774 \uc810\uc810 \ubd80\ub2f4\uc2a4\ub7ec\uc6cc\uc84c\uace0 \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud55c \ubc29\uc548\uc73c\ub85c \uc790\uc5f0\uc2a4\ub808 \ucc44\ud0dd\uc744 \ud558\uac8c \ub41c \uac83 \uac19\uc2b5\ub2c8\ub2e4.<\/span>
\uc608\uc804\uc5d0\ub294 \ud2b9\uc815 \uc7a5\uce58\ub97c \uc9c0\uc6d0\ud558\uae30 \uc704\ud55c \ub4dc\ub77c\uc774\ubc84\ub97c \uac01 \uc6b4\uc601\uccb4\uc81c\uc5d0 \ub9de\uac8c \uc81c\uc791\ud574\uc11c \uc7a5\uce58\uc640 \uac19\uc774 \ubc30\ud3ec\ud558\ub294 \uad6c\uc870\uc600\ub2e4\uba74, \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uad6c\uc870\uc5d0\uc11c\ub294 \ud504\ub85c\uadf8\ub7a8 \ucf54\ub4dc\ub97c \uc81c\uacf5\ud558\uc9c0 \uc54a\uace0 \uc7a5\uce58\ub97c \uc798 \uc124\uba85\ud558\ub294 \uc790\ub8cc \uad6c\uc870\ub97c \uc791\uc131\ud574\uc11c \uc774\ub97c \uc9c0\uc6d0(\uc774\ud574)\ud558\ub294 \uc6b4\uc601\uccb4\uc81c\uc5d0 \uc804\ub2ec\ud574 \uc6b4\uc601\uccb4\uc81c \uae30\ub3d9 \uc2dc \uc774\ub97c \uc77d\uc5b4 \uc124\uc815\ud558\ub294 \uad6c\uc870\ub85c \ubc14\uafb8\ub824\ub294 \uac83\uc73c\ub85c \uc774\ud574\ud588\uc2b5\ub2c8\ub2e4.<\/span>
\uacb0\uad6d <\/span>\uc6b4\uc601\uccb4\uc81c\uc5d0 \ubc94\uc6a9\uc801\uc778 \ucf54\ub4dc\ub97c \uc791\uc131\ud574 \ub193\uace0 \uc7a5\uce58\uc758 \uc815\ubcf4\uc5d0 \ub300\ud574 \uc77c\ubc18\ud654\ub97c \uc798\ud574\uc11c \uccb4\uacc4\ud654 \ub41c \uc790\ub8cc \uad6c\uc870\ub97c \uc804\ub2ec<\/span><\/strong>\ud558\ub294 \uac83\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
2) \uad6c\uc870<\/span><\/font><\/td><\/tr><\/tbody><\/table>


\uba3c\uc800, \uc55e\uc11c \ub9d0\uc500\ub4dc\ub9b0 \uac83 \ucc98\ub7fc \uc6b4\uc601\uccb4\uc81c\uac00 \uc7a5\uce58\ub97c \uc9c0\uc6d0\ud558\ub3c4\ub85d \ud558\uae30 \uc704\ud574 <\/span>\ud14d\uc2a4\ud2b8 \ubb38\uc11c(.dts)<\/span><\/strong>\ub97c \uc0ac\uc6a9\ud574 \uc7a5\uce58\uc5d0 \ub300\ud55c \uc815\ubcf4\ub97c \uae30\uc220\ud569\ub2c8\ub2e4.<\/span>
\uadf8\ub9ac\uace0 \uc774 \ud30c\uc77c\uc744 <\/span>\ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \ucef4\ud30c\uc77c\ub7ec(dtc)<\/span><\/strong>\ub77c\uace0 \ubd80\ub974\ub294 \ud234\ub85c \ucef4\ud30c\uc77c\uc744 \ud574\uc11c <\/span>\ubc14\uc774\ub108\ub9ac \ud30c\uc77c(.dtb)<\/span><\/strong>\ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/span>
\uadf8\ub807\uac8c \uc900\ube44\ub41c \ubc14\uc774\ub108\ub9ac \ud30c\uc77c\uc744 <\/span>\uc6b4\uc601\uccb4\uc81c\uc5d0 \uc804\ub2ec<\/span><\/strong>\ud569\ub2c8\ub2e4.<\/span>

     <\/span>\uc2a4\ud06c\ub9bd\ud2b8 \uc791\uc131(.dts)  =>  \ucef4\ud30c\uc77c(dtc)  =>  \ubc14\uc774\ub108\ub9ac \ud30c\uc77c(.dtb)<\/span><\/strong>

.dtb \ud30c\uc77c\uc744 \uc6b4\uc601\uccb4\uc81c\uc5d0 \uc54c\ub824\uc8fc\uba74 \ubd80\ud305 \uc2dc \uc801\uc6a9\ud558\ub294 \uac1c\ub150\uc774\uc9c0\ub9cc, Linux\uc5d0\uc11c\ub294 <\/span>.dtbo<\/span><\/strong> \ud30c\uc77c\ub85c \ub9cc\ub4e4\uc5b4 <\/span>\/lib\/firmware<\/span><\/strong> \ub514\ub809\ud1a0\ub9ac\uc5d0 \ubaa8\uc544 \ub193\uace0 \uc6b4\uc601\uc911\uc5d0 \uc544\ubb34 \ub54c\ub098 \uc801\uc6a9 \ubc0f \ud574\uc81c\uac00 \uac00\ub2a5\ud55c \uad6c\uc870\uc785\ub2c8\ub2e4.<\/span>

\uc790\uc138\ud55c \ubc29\ubc95\uc740 \uc544\ub798 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span>


<\/a><\/p>\r\n\r\n<\/span>
3) DTS \uad6c\uc870<\/span><\/font><\/td><\/tr><\/tbody><\/table>


\ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac\ub294 \uc7a5\uce58\ub97c \uc124\uba85\ud558\ub294 \uc790\ub8cc\uad6c\uc870\ub77c\uace0 \ud588\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c\ub85c \uc5b4\ub5bb\uac8c \uc124\uba85\uc744 \ud558\ub294 \uac83\uc77c\uae4c\uc694?<\/span>
'\ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc2a4\ud06c\ub9bd\ud2b8(Device Tree Script)'<\/span><\/strong> \ub610\ub294 <\/span>'\ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc18c\uc2a4(Device Tree Source)'<\/span><\/strong> \ub77c\uace0 \uc77c\uceeb\ub294 \ud14d\uc2a4\ud2b8 \ud615\uc2dd\uc758 \ubb38\uc11c\uc5d0 \uc815\ud574\uc9c4 \ubb38\ubc95\uc73c\ub85c \uae30\uc220\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c .dts \ub77c\ub294 \ud655\uc7a5\uc790\uc758 \ud30c\uc77c\ub85c \uc800\uc7a5\ud569\ub2c8\ub2e4.<\/span>

\ubb38\ubc95 \uad6c\uc870\ub098 \uba85\uce6d\ub4e4\uc774 \uc0c1\ub2f9\ud788 \ubc29\ub300\ud574\uc11c \uaddc\uaca9\uc744 \ub2e4 \ubd10\uc57c \uc54c\uaca0\uc9c0\ub9cc, \uc6b0\uc120\uc740 BBB\uc758 GPIO\ub97c \ub2e4\ub8e8\ub294 \ub370 \ud544\uc218\uc801\uc778 \ub0b4\uc6a9\ub9cc\uc73c\ub85c \uc791\uc131\ub41c DTS\ub97c \uc608\ub85c \ubcf4\uc785\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
p8_11_out.dts<\/span><\/th><\/tr>
\/dts-v1\/<\/span>;\r\n<\/span>\/plugin\/<\/span>;\r\n \r\n\/{\r\n        <\/span>compatible<\/span> = <\/span>\"ti,beaglebone\"<\/span>, <\/span>\"ti,beaglebone-black\"<\/span>;\r\n        <\/span>part-number<\/span> = <\/span>\"p8_11_out\"<\/span>;\r\n        <\/span>version<\/span> = <\/span>\"00A0\"<\/span>;\r\n \r\n        <\/span>fragment@0<\/span> {\r\n                <\/span>target<\/span> = <&<\/span>am33xx_pinmux<\/span>>;\r\n \r\n                <\/span>__overlay__<\/span> {\r\n                        pinctrl_test: p8_11_pins {\r\n                                pinctrl-single,pins = <\r\n \r\n                                        <\/span>0x034<\/span> <\/span>0x37<\/span>  <\/span>\/* GPIO1_13, SLEWCTRL_FAST | OUTPUT_PULLUP | MODE7 [gpio45] *\/<\/span>\r\n                                >;\r\n                        };\r\n                };\r\n        };\r\n \r\n        <\/span>fragment@1<\/span> {\r\n                <\/span>target<\/span> = <&<\/span>ocp<\/span>>;\r\n                <\/span>__overlay__<\/span> {\r\n                        test_helper: helper {\r\n                                <\/span>compatible<\/span> = <\/span>\"bone-pinmux-helper\"<\/span>;\r\n                                pinctrl-names = <\/span>\"default\"<\/span>;\r\n                                pinctrl-0 = <&pinctrl_test>;\r\n                                <\/span>status<\/span> = <\/span>\"okay\"<\/span>;\r\n                        };\r\n                };\r\n        };\r\n \r\n};\r\n<\/span><\/span><\/pre><\/td><\/tr><\/tbody><\/table>

<\/span>.dts \ubb38\ubc95\uc5d0 \ub300\ud574\uc11c\ub294 \ubcf8\uc778\ub3c4 \uc798 \ubaa8\ub974\ubbc0\ub85c \uc9c8\ubb38\ud558\uc154\ub3c4 \ub2f5\ubcc0 \ubabb \ub4dc\ub9b4 \uac81\ub2c8\ub2e4. \ubcf4\ub2e4 \uae4a\uc740 \ub0b4\uc6a9\uc740 \ub9c8\uc9c0\ub9c9 \ubd80\ubd84\uc758 \ucc38\uace0\uc790\ub8cc\ub97c \ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.\u3160\u3160<\/span>

\ub2e4\ub9cc, \uc911\uc694\ud55c \ub0b4\uc6a9\uc740 \uc911\uac04 \ubd80\ubd84\uc758 <\/span>0x034 0x37<\/span><\/strong> \uac00 \ub418\uaca0\uc2b5\ub2c8\ub2e4.<\/span>
Linux kernel \ub0b4\ubd80\uc5d0\uc11c am33xx_pinmux\uac00 0x44e10800 \uac12\uc744 \uac00\uc9c0\uae30 \ub54c\ubb38\uc5d0 P8_11\uc744 \uc9c0\uc815\ud558\uae30 \uc704\ud574 \uadf8 offset \uc8fc\uc18c\uc778 0x034\ub97c \uc0ac\uc6a9\ud574\uc57c \ud558\uba70,<\/span>
\uc800 \ub450 \uc22b\uc790\uac00 <\/span>\ud540\ud5e4\ub354 P8\uc758 11\ubc88 \ud540\uc744 GPIO\ub85c \uc0ac\uc6a9\ud558\uaca0\ub2e4<\/span><\/strong>\ub77c\ub294 \uc758\ubbf8\ub97c \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/span>


<\/a><\/p>\r\n\r\n<\/span>
3. DTS \ucef4\ud30c\uc77c \ubc0f \uc801\uc6a9<\/span><\/font><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
1) \ucef4\ud30c\uc77c<\/span><\/font><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
Super-user\ub85c \uc804\ud658<\/span><\/font><\/td><\/tr><\/tbody><\/table>
\ucef4\ud30c\uc77c\uc740 super user\uac00 \uc544\ub2c8\uc5b4\ub3c4 \ub418\uae34 \ud569\ub2c8\ub2e4\ub9cc, \ub098\uba38\uc9c0 \uacfc\uc815\uc774 \ubaa8\ub450 \uad8c\ud55c\uc744 \uc694\uad6c\ud558\ubbc0\ub85c \ubbf8\ub9ac super user\ub85c \uc804\ud658\ud574 \ub461\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\uc288\ud37c \uc720\uc800 \uc804\ud658<\/span><\/th><\/tr>
ubuntu@arm:~$ <\/span>sudo su<\/span>\r\nroot@arm:\/home\/ubuntu#\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
\ucef4\ud30c\uc77c\ub7ec \uc900\ube44<\/span><\/font><\/td><\/tr><\/tbody><\/table>
<\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>wget -c https:\/\/raw.github.com\/RobertCNelson\/tools\/master\/pkgs\/dtc.sh<\/span>\r\nroot@arm:\/home\/ubuntu# <\/span>chmod +x dtc.sh<\/span>\r\nroot@arm:\/home\/ubuntu# <\/span>.\/dtc.sh<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
\uc8fc\uc758<\/span><\/font><\/td><\/tr>
\ub2e8\uc21c\ud788 apt-get install device-tree-compiler \ub85c \uc124\uce58\ub97c \ud574\ub3c4 dtc \uac00 \uc900\ube44\ub294 \ub429\ub2c8\ub2e4.<\/span>
\uc774 \uacbd\uc6b0\ub294 \uc77c\ubc18 ubuntu \ubc84\uc804\uc774 \uc124\uce58\ub418\uc5b4 BBB\uc6a9 dts \ub97c \ucef4\ud30c\uc77c \ud560 \ub54c \uc624\ub958\uac00 \ub0a9\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc704\uc758 \ubc29\ubc95\uc73c\ub85c \uc124\uce58\ub97c \ud558\uc154\uc57c \ud569\ub2c8\ub2e4.<\/span>
<\/span><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
\ucef4\ud30c\uc77c<\/span><\/font><\/td><\/tr><\/tbody><\/table>
.dts \ub97c \ucef4\ud30c\uc77c\ud574\uc11c .dtbo\ub85c \ub9cc\ub4dc\ub294 \uacfc\uc815\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\ucef4\ud30c\uc77c<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>dtc -I dts -O dtb -o p8_11_out-00A0.dtbo -@ p8_11_out.dts<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uac04\ub2e8\ud558\ub2c8 \ubcc4\ub2e4\ub978 \uc124\uba85\uc740 \ud544\uc694 \uc5c6\uc744 \uac83 \uac19\uc9c0\ub9cc, \uc704 \uc608\ub97c \ubcf4\uba74 .dts\uc640 .dtbo \ud30c\uc77c\uc758 \uc774\ub984\uc774 \ub2e4\ub974\uac8c \uc9c0\uc815\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/span>
\"-00A0\" \uc744 \ub354 \ubd99\uc5ec\uc11c \uacb0\uacfc \ud30c\uc77c\uc744 \ub9cc\ub4ed\ub2c8\ub2e4\ub9cc, \ubc84\uc804 \uad00\ub9ac \ucc28\uc6d0\uc5d0\uc11c \ud558\ub294 \uac83\uc73c\ub85c \uc774\ud574\ud558\uba74 \ub418\uaca0\uc2b5\ub2c8\ub2e4.<\/span>

\uc8fc\uc758: .dtbo \ud30c\uc77c\uc5d0 \ubc84\uc804(00A0)\uc744 \ubd99\uc77c \ub54c \ubc18\ub4dc\uc2dc '-'\ub85c \ubd99\uc5ec\uc57c \ud569\ub2c8\ub2e4. '_' \uac19\uc740 \uae00\uc790\ub85c \ubd99\uc774\uba74 \uc2ac\ub86f\uc5d0 \uc62c\ub9b4 \ub54c \uc624\ub958 \ub0a9\ub2c8\ub2e4.<\/span><\/strong><\/font>

<\/a><\/p>\r\n\r\n<\/span>
\uc6b4\uc601\uccb4\uc81c\uc5d0 \ubcf5\uc0ac<\/span><\/font><\/td><\/tr><\/tbody><\/table>
\ucef4\ud30c\uc77c\ub41c .dtbo \ub294 \uc6b4\uc601\uccb4\uc81c\uc758 \ud2b9\ubcc4\ud55c \uc704\uce58\ub85c \ubcf5\uc0ac\ud574 \uc90d\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
DTB \ubcf5\uc0ac<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>cp p8_11_out-00A0.dtbo \/lib\/firmware<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uc790, \uadf8\ub7fc \uc774\uc81c \uc900\ube44\ub294 \ub05d\ub0ac\uc2b5\ub2c8\ub2e4. \uc55e\uc73c\ub85c\ub294 \ub2e4\uc74c \ub2e8\uacc4\ubd80\ud130 \uc9c4\ud589\ud574 \uc8fc\uba74 \ub429\ub2c8\ub2e4.<\/span>


<\/a><\/p>\r\n\r\n<\/span>
2) \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc624\ubc84\ub808\uc774<\/span><\/font><\/td><\/tr><\/tbody><\/table>

\uc900\ube44\ub41c .dtbo \ub97c \uc801\uc6a9\uc2dc\ud0a4\ub294 \uacfc\uc815\uc744 \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc624\ubc84\ub808\uc774(Device Tree Overlay) \ub77c\uace0 \ud558\ub294 \ub370, \uc774\ub984\uc5d0\uc11c \uc54c \uc218 \uc788\ub4ef\uc774 \ucee4\ub110 \ub0b4\ubd80\uc758 \uae30\uc874 \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc704\uc5d0 \uc0c8\ub85c\uc6b4 .dtbo\ub97c \uc911\ucca9\uc2dc\ucf1c\uc11c \uc0c8\ub85c\uc6b4 \ud558\ub4dc\uc6e8\uc5b4\ub97c \ucd94\uac00\ud558\uac70\ub098 \uae30\ub2a5\uc744 \ubcc0\uacbd\ud558\ub294 \uac83\uc774 \uc544\ub2cc\uac00 \uc2f6\uc2b5\ub2c8\ub2e4. \uc815\ud655\ud55c \uba54\ucee4\ub2c8\uc998\uc740 \ucee4\ub110 \ub0b4\ubd80\ub97c \ud655\uc778\ud574\uc57c \uc54c \uac83 \uac19\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \ub3d9\uc791\ud558\ub294 \ub370 \uc758\uc758\ub97c \ub450\uace0 \uadf8\ub0e5 \ub118\uc5b4\uac11\ub2c8\ub2e4.<\/span>

\uc544\ubb34\ud2bc, \uc774 \ub3d9\uc791\uc744 \ub9c8\uce58 \ucf00\uc774\ud504\ub97c \uc62c\ub838\ub2e4 \ub0b4\ub838\ub2e4 \ud558\ub294 \uac83\uc5d0 \ub300\uc751\ud574\uc11c \ucd94\uc0c1\ud654 \ud574 \ub193\uc558\ub354\uad70\uc694. \uc704\uc5d0\uc11c \ub9cc\ub4e0 p8_11 \ud540\uc744 \ucd9c\ub825\uc6a9 gpio \ud540\uc73c\ub85c \ub3d9\uc791\uc2dc\ud0a4\ub294 \uac00\uc0c1 \ucf00\uc774\ud504\ub97c BBB\uc5d0 \uc7a5\ucc29 \uc2dc\ud0a4\ub294 \uac83 \uac19\uc740 \uac1c\ub150\uc785\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\ucf00\uc774\ud504\ub780?<\/span><\/font><\/td><\/tr>
\ucf00\uc774\ud504\ub294 \ube44\uae00\ubcf8 \uc2dc\ub9ac\uc988 \ubcf4\ub4dc\uc5d0 \ucd94\uac00\ub85c \uc7a5\ucc29\ud574\uc11c \uc6d0\ud558\ub294 \ud2b9\uc815 \uae30\ub2a5\uc744 \ud558\ub294 \ubcf4\ub4dc\ub97c \ub9d0\ud569\ub2c8\ub2e4.<\/span>
\uc544\ub450\uc774\ub178\uc758 \uc274\ub4dc\uc5d0 \ub300\uc751\ud55c\ub2e4\uace0 \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\uc9c1\uc740 \uc544\ub450\uc774\ub178 \ub9cc\ud07c \ud48d\ubd80\ud55c \uae30\ub2a5\uc758 \ucf00\uc774\ud504 \ub4e4\uc774 \uc788\uc9c0\ub294 \uc54a\uc9c0\ub9cc \uc810\uc810 \uc0c8\ub85c\uc6b4 \ucf00\uc774\ud504\ub4e4\uc774 \uac1c\ubc1c\ub418\uace0 \uc788\ub354\uad70\uc694.<\/span>
<\/span><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
\uc2ac\ub86f\uc5d0 \uc7a5\ucc29<\/span><\/font><\/td><\/tr><\/tbody><\/table>
\uc900\ube44\ub41c .dtbo \ud30c\uc77c\uc744 \uc6b4\uc601\uccb4\uc81c\uc5d0 \uc801\uc6a9\ud558\ub3c4\ub85d \ud574 \uc90d\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\uc2ac\ub86f\uc5d0 \uc7a5\ucc29<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>echo p8_11_out > \/sys\/devices\/bone_capemgr.*\/slots<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\ub9ac\ub205\uc2a4\uc5d0\uc11c\ub294 \/proc \uacfc \ub9c8\ucc2c\uac00\uc9c0\ub85c \/sys \ub4a4\uc758 \ud30c\uc77c\ub4e4\uc740 \ub514\uc2a4\ud06c \uc0c1\uc758 \uc2e4\uc81c \ud30c\uc77c\uc774 \uc544\ub2c8\ub77c \ucee4\ub110 \ub0b4\ubd80\uc758 \uc790\ub8cc \uad6c\uc870\ub97c \ud30c\uc77c\ub85c \uac00\uc0c1\ud654 \ud55c \uac83\uc73c\ub85c \ubcf4\uc785\ub2c8\ub2e4. \uadf8 \uc911 \/sys\/devices\/bone_capemgr.*\/slots \ubd80\ubd84\uc774 \uc774\ub984\ucc98\ub7fc \ucf00\uc774\ud504 \ub9e4\ub2c8\uc800\uc758 \uc2ac\ub86f \uac1c\ub150\uc73c\ub85c \ubcf4\uc774\ub294\ub370, \ubb3c\ub9ac\uc801\uc73c\ub85c \ucf00\uc774\ud504\ub97c \uc7a5\ucc29\uc2dc\ucf1c \uc8fc\ub294 \uac83\ucc98\ub7fc .dtbo \ud30c\uc77c\uc744 \ube44\uc2b7\ud558\uac8c \ub2e4\ub8f0 \uc218 \uc788\uac8c \ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/span>

\uc704\uc758 'echo' \uba85\ub839 1\uc904\uc740 'p8_11_out \uc774\ub780 \uac00\uc0c1 \ucf00\uc774\ud504\ub97c BBB\uc5d0 \uc7a5\ucc29\ud558\ub77c'\ub77c\ub294 \uc758\ubbf8\ub85c \uc774\ud574\ud558\uba74 \ub420 \ub4ef \ud569\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\uc7a5\ucc29 \uc0c1\ud0dc\uc758 \ud655\uc778<\/span><\/font><\/td><\/tr><\/tbody><\/table>
\uc798 \uc7a5\ucc29(?) \ub418\uc5c8\ub294\uc9c0 \ud655\uc778\ud558\ub294 \ubc29\ubc95\uc740<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\uc2ac\ub86f \uc0c1\ud669 \ud655\uc778<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>cat \/sys\/devices\/bone_capemgr.*\/slots<\/span>\r\n 0: 54:PF---\r\n 1: 55:PF---\r\n 2: 56:PF---\r\n 3: 57:PF---\r\n 4: ff:P-O-L Bone-LT-eMMC-2G,00A0,Texas Instrument,BB-BONE-EMMC-2G\r\n 5: ff:P-O-L Bone-Black-HDMI,00A0,Texas Instrument,BB-BONELT-HDMI\r\n 6: ff:P-O-L Override Board Name,00A0,Override Manuf,p8_11_out\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\ub9c8\uc9c0\ub9c9 \uc904\uc5d0 \ubcf4\uc774\ub294 \uac83\ucc98\ub7fc \uc2ac\ub86f 6\uc5d0 p8_11_out \uc774 \uc7a5\ucc29\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/span>

\uc5ec\uae30\uae4c\uc9c0 \ud558\uba74 P8_11 \uc744 \uc811\uadfc\ud560 \uc218 \uc788\ub294 \uc0c1\ud0dc\uac00 \ub429\ub2c8\ub2e4.<\/span>
\uadf8\ub7ec\uba74 \uc2e4\uc81c\ub85c P8_11 \uc744 \uc124\uc815\ud574 \uc918\uc57c GPIO\ub85c \ub2e4\ub8f0 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
3) GPIO\ud540 \uc124\uc815<\/span><\/font><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
GPIO \uc0c1\ud669 \ud655\uc778<\/span><\/font><\/td><\/tr><\/tbody><\/table>
\ud604\uc7ac\uc758 GPIO \ud540 \uc124\uc815\uc774 \uc5b4\ub5bb\uac8c \ub418\uc5b4 \uc788\ub294 \uc9c0 \ud655\uc778\uc744 \ud574 \ubd05\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
GPIO \uc0c1\ud669 \ud655\uc778<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>ls \/sys\/class\/gpio\/<\/span>\r\nexport  <\/span>gpiochip0  gpiochip32  gpiochip64  gpiochip96<\/span>  unexport\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uc704\uc5d0 \ubcf4\uc2dc\ub294 \uac83\ucc98\ub7fc \uae30\uc874\uc5d0 \uc0ac\uc6a9\ud558\uace0 \uc788\ub294 \ud540 \ubaa9\ub85d\uc774 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/span>
\uac01\uc790 \uc0ac\uc6a9\ud558\uc2dc\ub294 \uc0c1\ud669\uc5d0 \ub530\ub77c \uc870\uae08\uc529 \ub2ec\ub77c\uc9c8 \uc218 \uc788\uc744 \uac81\ub2c8\ub2e4.<\/span>

\uc704\uc5d0\uc11c export \uc640 unexport \ub294 \ud2b9\ubcc4\ud55c \uc758\ubbf8\uac00 \uc788\ub294 \ud30c\uc77c\uc785\ub2c8\ub2e4. \ubc14\ub85c \uc544\ub798 \uc124\uba85\uc774 \ub098\uc635\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
P8_11 \ud540 \ud65c\uc131\ud654<\/span><\/font><\/td><\/tr><\/tbody><\/table>
P8_11\ud540\uc744 GPIO\ub85c \uc0ac\uc6a9\ud558\uaca0\ub2e4\uace0 \uc124\uc815\ud558\ub824\uba74 \ub2e4\uc74c\uacfc \uac19\uc774 \ud569\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\ud540 \ud65c\uc131\ud654<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>echo 45 > \/sys\/class\/gpio\/export<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uc704\uc5d0\uc11c \uc5b8\uae09\ud55c 'export'\ub77c\ub294 \ud2b9\ubcc4\ud55c \ud30c\uc77c\uc5d0 gpio\ubc88\ud638\ub97c \ucd9c\ub825\ud574 \uc8fc\uba74 \ub429\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
GPIO \uc0c1\ud669 \uc7ac \ud655\uc778<\/span><\/font><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
GPIO \uc0c1\ud669 \ud655\uc778<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>ls \/sys\/class\/gpio\/<\/span>\r\nexport  <\/span>gpio45<\/span><\/strong><\/font>  <\/span>gpiochip0  gpiochip32  gpiochip64  gpiochip96<\/span>  unexport\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uc790 \uc704\uc758 \uacb0\uacfc\ucc98\ub7fc 'gpio45' \uac00 \ucd94\uac00\ub418\uc5b4 \uc788\uc74c\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. gpio45\ub294 \ud30c\uc77c\uc774 \uc544\ub2c8\ub77c \ud3f4\ub354\ucc98\ub7fc \ub3d9\uc791\ud569\ub2c8\ub2e4.<\/span>
\uadf8 \ub0b4\ubd80\uc5d0\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ud30c\uc77c\ub4e4\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
GPIO \ud3f4\ub354 \ub0b4\ubd80<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>ls \/sys\/class\/gpio\/gpio45\/<\/span>\r\nactive_low  direction  edge  <\/span>power<\/span><\/font>  <\/span>subsystem<\/span><\/font>  uevent  value\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uc5ed\uc2dc \uc2e4\uc81c \ud30c\uc77c\uc740 \uc544\ub2c8\uba70, \uc800 \uc911\uc5d0\uc11c 'direction'\uacfc 'value'\ub97c \uc0ac\uc6a9\ud574\uc11c \ucd9c\ub825\uc73c\ub85c\uc758 \uc124\uc815\uacfc \uc2e4\uc81c \ub370\uc774\ud130 \ucd9c\ub825\uc744 \ud558\uac8c \ub429\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
P8_11\ud540\uc744 \ucd9c\ub825\uc6a9\uc73c\ub85c \uc124\uc815<\/span><\/font><\/td><\/tr><\/tbody><\/table>

gpio\uc758 \uc785\/\ucd9c\ub825 \uc124\uc815\uc740 gpio45\/direction \ud30c\uc77c\uc5d0 'out' \uc744 \ucd9c\ub825\ud574 \uc8fc\uba74 \ub429\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\ud540\uc758 \ucd9c\ub825 \uc124\uc815<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>echo out > \/sys\/class\/gpio\/gpio45\/direction<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uc774\uc81c gpio45\ub97c \ucd9c\ub825\uc6a9\uc73c\ub85c \uc0ac\uc6a9\ud560 \uc218 \uc788\uac8c \uc900\ube44\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><\/strong><\/font>

<\/a><\/p>\r\n\r\n<\/span>
P8_11\uc5d0 High \uc2e0\ud638 \ucd9c\ub825<\/span><\/font><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
\ud540\uc5d0 \ucd9c\ub825<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>echo 1 > \/sys\/class\/gpio\/gpio45\/value<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
P8_11\uc758 \ube44\ud65c\uc131\ud654<\/span><\/font><\/td><\/tr><\/tbody><\/table>

\uc0ac\uc6a9\uc774 \ub05d\ub098\uba74 gpio\ub97c \ub2e4\uc74c\uacfc \uac19\uc774 \ube44\ud65c\uc131\ud654 \ud574 \uc904 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
gpio #45\ub97c \ube44\ud65c\uc131\ud558\ub294 \uc608<\/span><\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>echo 45 > \/sys\/class\/gpio\/unexport<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
P8_11\uc744 \uc2ac\ub86f\uc5d0\uc11c \uc81c\uac70<\/span><\/font><\/td><\/tr><\/tbody><\/table>

\uc2ac\ub86f\uc5d0\uc11c \uc81c\uac70\ud558\uae30 \uc704\ud574\uc11c\ub294<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\uc2ac\ub86f\uc5d0\uc11c \uc81c\uac70\ud558\ub294 \uc608<\/span><\/th><\/tr>
$ <\/span>echo -6 > \/sys\/devices\/bone_capemgr.*\/slots<\/span>\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

'echo' \uba85\ub839\uc73c\ub85c '-'\uac00 \ubd99\uc740 \uc2ac\ub86f \ubc88\ud638\ub97c \uc2ac\ub86f\uc5d0 \ubcf4\ub0b4\uba74 \ub429\ub2c8\ub2e4.<\/span>
\uc608\uc5d0\uc11c\ub294 \uc2ac\ub86f \ubc88\ud638\uac00 6\uc774\uc9c0\ub9cc \uc2e4\uc81c \uc2ac\ub86f \ubc88\ud638\ub294 <\/span> cat \/sys\/devices\/bone_capemgr.*\/slots <\/span> \uba85\ub839\uc744 \uc0ac\uc6a9\ud574\uc11c \ud655\uc778\ud574\uc57c \ud569\ub2c8\ub2e4.<\/span>


\uc774\uc0c1\uc73c\ub85c gpio \uc0ac\uc6a9 \uc124\uba85\uc744 \uc815\ub9ac\ud569\ub2c8\ub2e4\ub9cc, \ucd5c\ub300\ud55c \uc9e7\uac8c \uc124\uba85\ud55c\ub2e4\uace0 \ud588\ub294\ub370\ub3c4 \uc7a5\ud669\ud574\uc9c4 \uac83 \uac19\uc544 \ub2e4\uc2dc \ud55c\ubc88 \uc694\uc57d\ud569\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
\uad6c\ubd84           <\/span><\/th>\uba85\ub839 \uc608)<\/span><\/th><\/tr>
\uc2ac\ub86f \uc7a5\ucc29      <\/span><\/td>echo p8_11_out > \/sys\/devices\/bone_capemgr.*\/slots<\/span><\/td><\/tr>
\uc2ac\ub86f \uc0c1\ud669 \ud655\uc778 <\/span><\/td>cat \/sys\/devices\/bone_capemgr.*\/slots<\/span><\/td><\/tr>
\ud540 \ud65c\uc131\ud654      <\/span><\/td>echo 45 > \/sys\/class\/gpio\/export<\/span><\/td><\/tr>
\ud540 \uc0c1\ud669 \ud655\uc778   <\/span><\/td>ls \/sys\/class\/gpio\/<\/span><\/td><\/tr>
\ud540 \ucd9c\ub825 \uc124\uc815   <\/span><\/td>echo out > \/sys\/class\/gpio\/gpio45\/direction<\/span><\/td><\/tr>
\ub370\uc774\ud130(High) \ucd9c\ub825    <\/span><\/td>echo 1 > \/sys\/class\/gpio\/gpio45\/value<\/span><\/td><\/tr>
\ud540 \ube44\ud65c\uc131\ud654    <\/span><\/td>echo 45 > \/sys\/class\/gpio\/unexport<\/span><\/td><\/tr>
\uc2ac\ub86f \uc81c\uac70      <\/span><\/td>
echo -6 > \/sys\/devices\/bone_capemgr.*\/slots<\/span><\/p>\r\n\r\n<\/span><\/td><\/tr><\/tbody><\/table>


<\/a><\/p>\r\n\r\n<\/span>
3. \ud68c\ub85c \uad6c\uc131<\/span><\/font><\/td><\/tr><\/tbody><\/table>

\ub2e4\uc74c \uc0ac\uc9c4\uc5d0 \uc774 \uae00\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \ud540\ub4e4\uc744 \ud45c\uc2dc\ud574 \ubd24\uc2b5\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
<\/a>\"0009_BBB_GPIO_test.PNG\"\r\n<\/span><\/p>\r\n\r\n<\/span>

<\/p>\r\n\r\n<\/span>\r\n<\/span>
<\/p>\r\n\r\n<\/span>



\uadf8\ub9ac\uace0 \ub2e4\uc74c \uc0ac\uc9c4\uc5d0\uc11c\ub294 \ub808\ubca8 \ucee8\ubc84\ud130(NS-LS4)\ub97c \uc0ac\uc6a9\ud558\uae30 \uc704\ud55c \uc120 \uc5f0\uacb0\uc744 \ubcf4\uc600\uc2b5\ub2c8\ub2e4.<\/span>
<\/a>\"0009_BBB_5V_Converted_GPIO.PNG\"\r\n<\/span><\/p>\r\n\r\n<\/span>

<\/p>\r\n\r\n<\/span>\r\n<\/span>
<\/p>\r\n\r\n<\/span>


\uc704 \uc0ac\uc9c4\uc758 \uc6b0\uce21 \ud558\ub2e8\uc758 <\/span>5V Circuit<\/span><\/strong> \uc5d0 \uc6d0\ud558\ub294 5V \ud68c\ub85c\ub97c \uad6c\uc131\ud574 \uc8fc\uba74 \ub429\ub2c8\ub2e4.<\/span>


<\/a><\/p>\r\n\r\n<\/span>
4. \ud14c\uc2a4\ud2b8<\/span><\/font><\/td><\/tr><\/tbody><\/table>

\uadf8\ub7fc \uc2e4\uc81c \ud14c\uc2a4\ud2b8\ub97c \ud558\uae30 \uc704\ud574 \uc120 \uc5f0\uacb0\ud55c \ubaa8\uc2b5\uc744 \ubcf4\uc2dc\uc8e0.<\/span>
<\/a>\"0013_BBB_Stepper_Motor_Wiring0.PNG\"\r\n<\/span><\/p>\r\n\r\n<\/span>

<\/p>\r\n\r\n<\/span>\r\n<\/span>
<\/p>\r\n\r\n<\/span>
 <\/span>


BBB\uc640 \ub808\ubca8 \ucee8\ubc84\ud130 \ubd80\ubd84\ub9cc \ud655\ub300\ud55c \ubaa8\uc2b5\uc785\ub2c8\ub2e4.<\/span>
<\/a>\"0013_BBB_Stepper_Motor_Wiring1.PNG\"\r\n<\/span><\/p>\r\n\r\n<\/span>

<\/p>\r\n\r\n<\/span>\r\n<\/span>
<\/p>\r\n\r\n<\/span>
 <\/span>

\uc6cc\ub099 \uac04\ub2e8\ud55c \uac83\uc774\ub77c \ubcc4 \ub2ec\ub9ac \uc124\uba85\ud560 \ub9cc\ud55c \uac74 \uc5c6\ub124\uc694.<\/span>
(\uac00\ub2a5\ud558\uba74 \uc704\uc758 \uadf8\ub9bc\uacfc \uac19\uc740 \uc0c9\uc758 \uc810\ud37c \uc120\uc744 \uc0ac\uc6a9\ud558\ub824\uace0 \ub178\ub825\ud588\uc2b5\ub2c8\ub2e4.)<\/span>


\uc790, \uadf8\ub9ac\uace0\ub294 \ud14c\uc2a4\ud2b8\ub97c \uc704\ud55c \ud504\ub85c\uadf8\ub7a8\uc744 \uac04\ub2e8\ud558\uac8c C\uc5b8\uc5b4\ub85c \uc791\uc131\ud588\uc2b5\ub2c8\ub2e4.<\/span>
\ub2e4\uc74c \ud504\ub85c\uadf8\ub7a8\uc740 \ub2e8\uc21c\ud788 \uc2a4\ud14c\ud37c \ubaa8\ud130\ub97c 1\ud68c\uc804(Revolution, 360\ub3c4) \uc2dc\ud0a4\ub294 \ucf54\ub4dc\uac00 \ub418\uaca0\uc2b5\ub2c8\ub2e4.<\/span>

for\ubb38\uc5d0\uc11c 200*50 \ubc88 \ubc18\ubcf5\ud558\uba74\uc11c gpio45\uc5d0 '1'\uacfc '0'\uc744 \ucd9c\ub825\ud558\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span>
200*50\uc5d0\uc11c 200\uc740 360\ub3c4 \ud68c\uc804\ud558\uae30 \uc704\ud55c \ubaa8\ud130 \uc790\uccb4\uc758 \uc2a4\ud15d \uc218 \uc774\uace0, 50\uc740 \ub9c8\uc774\ud06c\ub85c\uc2a4\ud15d \uc124\uc815 \uac12 \uc785\ub2c8\ub2e4.<\/span>

<\/a><\/p>\r\n\r\n<\/span>
c_stepper.c<\/span><\/th><\/tr>
#include<\/span> <\/span><stdio.h><\/span>\r\n<\/span>#include<\/span> <\/span><sys\/stat.h><\/span>\r\n<\/span>#include<\/span> <\/span><fcntl.h><\/span>\r\n \r\n<\/span>int<\/span> main(<\/span>void<\/span>)\r\n{\r\n        <\/span>int<\/span> fd = <\/span>open<\/span>(<\/span>\"\/sys\/class\/gpio\/gpio45\/value\"<\/span>, <\/span>O_WRONLY<\/span>, <\/span>S_IWRITE<\/span>);\r\n \r\n        <\/span>if<\/span> (fd><\/span>0<\/span>) {\r\n                <\/span>int<\/span> i;\r\n                <\/span>for<\/span> (i=<\/span>0<\/span>; i<<\/span>200<\/span>*<\/span>50<\/span>; i++) {\r\n                        <\/span>write<\/span>(fd, <\/span>\"1\"<\/span>, <\/span>1<\/span>);\r\n                        <\/span>\/\/usleep(1);<\/span>\r\n                        <\/span>write<\/span>(fd, <\/span>\"0\"<\/span>, <\/span>1<\/span>);\r\n                        <\/span>\/\/usleep(1);<\/span>\r\n                }\r\n                <\/span>close<\/span>(fd);\r\n        }\r\n \r\n        <\/span>return<\/span> <\/span>0<\/span>;\r\n}\r\n<\/span><\/span><\/pre><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
<\/th><\/tr>
root@arm:\/home\/ubuntu# <\/span>gcc -o c_stepper c_stepper.c<\/span>\r\nroot@arm:\/home\/ubuntu# <\/span>.\/c_stepper<\/span>\r\nroot@arm:\/home\/ubuntu#\r\n<\/span><\/pre><\/td><\/tr><\/tbody><\/table>

\uc704 \ucf54\ub4dc\uc758 \uc2e4\ud589\uc73c\ub85c \ubaa8\ud130\uac00 \ud68c\uc804\ud558\ub294 \uac83\uc744 \ud655\uc778 \ud588\uc73c\uba70, \ud14c\uc2a4\ud2b8 \uc790\uccb4\ub294 \uc6cc\ub099 \ub2e8\uc21c\ud55c \uac83\uc774\ub77c \ub3d9\uc601\uc0c1 \uac19\uc740 \uac83\uc774 \uc758\ubbf8\uac00 \uc5c6\ub2e4\uace0 \ud310\ub2e8\ud558\uace0 \uc0dd\ub7b5\ud569\ub2c8\ub2e4.<\/span>


<\/a><\/p>\r\n\r\n<\/span>
5. \uacb0\ub860<\/span><\/font><\/td><\/tr><\/tbody><\/table>

\uc0ac\uc2e4 \uc54c\uace0 \ub098\uba74 \ub108\ubb34\ub098 \uac04\ub2e8\ud55c \uac83\uc77c\ud14c\uc9c0\ub9cc, \uc81c\uac00 \uc6d0\ud558\ub294 \uc804\uccb4 \uacfc\uc815\uc774 \uc77c\ubaa9 \uc694\uc5f0\ud558\uac8c \uc815\ub9ac\ub41c \uc815\ubcf4\ub97c \ucc3e\uc744 \uc218\uac00 \uc5c6\uc5c8\uae30\uc5d0 \ub098\ub984 \ub9ce\uc740 \uacf3\uc744 \ubc29\ubb38\ud574\uc11c \uc77d\uc5b4\ubcf4\uace0 \uc2dc\ud589\ucc29\uc624\ub3c4 \ub9ce\uc558\uc2b5\ub2c8\ub2e4.<\/span>

\uc800 \uc2a4\uc2a4\ub85c\uc758 \uc815\ub9ac\ub3c4 \ud558\uace0, \ub610 \uc800\uc640 \uac19\uc740 \ubaa9\uc801\uc758 \uc815\ubcf4\ub97c \uc6d0\ud558\uc2dc\ub294 \ubd84\uaed8 \uc870\uae08\uc774\ub77c\ub3c4 \ub3c4\uc6c0\uc774 \ub420\uae4c \uc2f6\uc5b4\uc11c \uc815\ub9ac\ub97c \ud574 \ubd24\uc2b5\ub2c8\ub2e4\ub9cc, \ubd80\uc871\ud55c \ubd80\ubd84\uc774 \ub9ce\uc744 \uac83\uc774\ub77c\uace0 \uc0dd\uac01\ub429\ub2c8\ub2e4. \uc870\uae08\uc529 \ub354 \uc81c\ub300\ub85c \uc54c\uc544\uac00\uba74\uc11c \uc218\uc815 \ubcf4\uc644\ud558\ub824\uace0 \ud569\ub2c8\ub2e4.<\/span>


\uc774 \uae00\uc5d0\uc11c \uc124\uba85\ud55c \ud14c\uc2a4\ud2b8\ub294 \uc0ac\uc2e4 \ubb38\uc81c\uac00 \uc788\uc2b5\ub2c8\ub2e4. \uc804\ubc18\uc801\uc778 \uac1c\ub150\uacfc \uad6c\uc870\uac00 \uc774\ub807\ub2e4\ub77c\ub294 \uac83\uc744 \ubcf4\uc774\uae30 \uc704\ud574 \uc774\ub7f0 \uc608\ub97c \ub4e4\uc5b4 \uc815\ub9ac\ud588\uc9c0\ub9cc, \uc2e4\uc81c\ub85c \uc2a4\ud14c\ud37c \ubaa8\ud130\ub97c \uc81c\uc5b4\ud558\ub294 \ub370 \uc0ac\uc6a9\ud558\uae30\uc5d0\ub294 \ubd80\uc871\ud55c \uc810\uc774 \uc788\ub2e4\ub294 \uac83\uc774\uc8e0.<\/span>

1) \ud6a8\uc728\uc801\uc778 \uc81c\uc5b4\uac00 \uc5b4\ub835\ub2e4.<\/span><\/strong><\/font>
2) \uc2e4\uc2dc\uac04 \uc81c\uc5b4\ub97c \ub9cc\uc871 \ubabb\ud560 \uc218\ub3c4 \uc788\ub2e4.<\/span><\/strong><\/font>

\uc704\uc640 \uac19\uc740 \ubb38\uc81c\uc810\uc744 \ud574\uacb0\ud558\uae30 \uc704\ud574 \ub2e4\uc74c \ub2e8\uacc4\ub85c \ub118\uc5b4\uac00\uc57c \ud569\ub2c8\ub2e4. \uc2a4\ud14c\ud37c \ubaa8\ud130\uc758 \ud575\uc2ec \uc81c\uc5b4\ub97c \uba54\uc778 \ud504\ub85c\uc138\uc11c\uc5d0\uc11c \ud558\uc9c0 \uc54a\uace0 AM335x \ub0b4\ubd80\uc5d0 \ud0d1\uc7ac\ub41c PRU \ub77c\ub294 \ubcf4\uc870 \ud504\ub85c\uc138\uc11c(?) \ub97c \uc0ac\uc6a9\ud574\uc11c \uc5b4\uc148\ube14\ub9ac\ub85c \uc81c\uc5b4\ud558\ub294 \ubc29\ubc95\uc778 PRUSS \ub77c\ub294 \uae30\uc220\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774 \uae30\uc220\uc744 \uc0ac\uc6a9\ud558\uba74 \uace0\ud6a8\uc728\uacfc \uc2e4\uc2dc\uac04 \ucc98\ub9ac \ub450 \uac00\uc9c0\ub97c \ubaa8\ub450 \uc5bb\uc744 \uc218 \uc788\uc744 \uac83 \uac19\uc2b5\ub2c8\ub2e4. \uc81c\uac00 \uc5ec\ub7ec \uace0\uc131\ub2a5 \uc624\ud508 \ud558\ub4dc\uc6e8\uc5b4 \ud50c\ub7ab\ud3fc\uc744 \ucc3e\ub2e4\uac00 BBB\ub97c \ubcf8\uaca9\uc801\uc73c\ub85c \ubcf4\uac8c \ub41c \uc774\uc720\uac00 PRUSS \ub77c\ub294 \uae30\uc220 \ub54c\ubb38\uc774\uc5c8\uc2b5\ub2c8\ub2e4.<\/span>

\uc5b8\uc81c\uac00 \ub420 \uc9c0 \ubaa8\ub974\uaca0\uc73c\ub098 \uc870\ub9cc\uac04 PRUSS \uc5d0 \ub300\ud574\uc11c\ub3c4 \uc815\ub9ac\ub97c \ud574 \ubcfc \uc608\uc815\uc785\ub2c8\ub2e4.<\/span>


<\/a><\/p>\r\n\r\n<\/span>
6. \ucc38\uace0 \uc790\ub8cc<\/span><\/font><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
\uad00\ub828 \ub9c1\ud06c\ub4e4<\/span><\/caption>
\uc790\ub8cc <\/span><\/th>\ub9c1\ud06c<\/span><\/th><\/tr>
BeagleBone Black<\/span>
System Reference Manual       <\/span>
(BBB_SRM)<\/span><\/td>		http:\/\/www.farnell.com\/datasheets\/1701090.pdf<\/span><\/a><\/td><\/tr>
AM335x Technical Reference Manual     <\/span>
(AM335x TRM,SPRUH73I) <\/span><\/td>		http:\/\/www.ti.com\/lit\/ug\/spruh73i\/spruh73i.pdf<\/span><\/a><\/td><\/tr>
BBB Pins <\/span><\/td>http:\/\/robotic-controls.com\/node\/68<\/span><\/a><\/td><\/tr>
Using BeagleBone Black GPIOs <\/span><\/td>http:\/\/www.armhf.com\/index.php\/using-beaglebone-black-gpios\/<\/span><\/a><\/td><\/tr>
A Tutorial on the Device Tree <\/span><\/td>http:\/\/xillybus.com\/tutorials\/device-tree-zynq-1<\/span><\/a><\/td><\/tr>
Device Tree Usage <\/span><\/td>http:\/\/devicetree.org\/Device_Tree_Usage<\/span><\/a><\/td><\/tr>
GPIO\uac00 \ubb54\uac00\uc694? <\/span><\/td>http:\/\/forum.falinux.com\/zbxe\/index.php?document_srl=438015&mid=hardware<\/span><\/a><\/td><\/tr>
<\/td><\/tr><\/tbody><\/table>


<\/a><\/p>\r\n\r\n<\/span>
7.[\ubd80\ub85d] BBB \ud655\uc7a5 \ud5e4\ub354 \ud540 \ubaa9\ub85d<\/span><\/font><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>
P8 \ud5e4\ub354<\/span><\/caption>
Mode7    <\/span><\/th># <\/span><\/th>Offset<\/span><\/th>Name    <\/span><\/th>Pin <\/span><\/th>Pin <\/span><\/th>Name     <\/span><\/th>Offset<\/span><\/th># <\/span><\/th>Mode7<\/span><\/th><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>DGND     <\/span><\/td>1  <\/span><\/td>2  <\/span><\/td>DGND     <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
gpio1[6] <\/span><\/td>6  <\/span><\/td>0x018 <\/span><\/td>GPIO1_6  <\/span><\/td>3  <\/span><\/td>4  <\/span><\/td>GPIO1_7  <\/span><\/td>0x01c <\/span><\/td>7  <\/span><\/td>gpio1[7]<\/span><\/td><\/tr>
gpio1[2] <\/span><\/td>2  <\/span><\/td>0x008 <\/span><\/td>GPIO1_2  <\/span><\/td>5  <\/span><\/td>6  <\/span><\/td>GPIO1_3  <\/span><\/td>0x00c <\/span><\/td>3  <\/span><\/td>gpio1[3]<\/span><\/td><\/tr>
gpio2[2] <\/span><\/td>66 <\/span><\/td>0x090 <\/span><\/td>TIMER4   <\/span><\/td>7  <\/span><\/td>8  <\/span><\/td>TIMER7   <\/span><\/td>0x094 <\/span><\/td>67 <\/span><\/td>gpio2[3]<\/span><\/td><\/tr>
gpio2[5] <\/span><\/td>69 <\/span><\/td>0x09c <\/span><\/td>TIMER5   <\/span><\/td>9  <\/span><\/td>10 <\/span><\/td>TIMER6   <\/span><\/td>0x098 <\/span><\/td>68 <\/span><\/td>gpio2[4]<\/span><\/td><\/tr>
gpio1[13]<\/span><\/td>45 <\/span><\/td>0x034 <\/span><\/td>GPIO1_13 <\/span><\/td>11 <\/span><\/td>12 <\/span><\/td>GPIO1_12 <\/span><\/td>0x030 <\/span><\/td>44 <\/span><\/td>gpio1[12]<\/span><\/td><\/tr>
gpio0[23]<\/span><\/td>23 <\/span><\/td>0x024 <\/span><\/td>EHRPWM2B <\/span><\/td>13 <\/span><\/td>14 <\/span><\/td>GPIO0_26 <\/span><\/td>0x028 <\/span><\/td>26 <\/span><\/td>gpio0[26]<\/span><\/td><\/tr>
gpio1[15]<\/span><\/td>47 <\/span><\/td>0x03c <\/span><\/td>GPIO1_15 <\/span><\/td>15 <\/span><\/td>16 <\/span><\/td>GPIO1_14 <\/span><\/td>0x038 <\/span><\/td>46 <\/span><\/td>gpio1[14]<\/span><\/td><\/tr>
gpio0[27]<\/span><\/td>27 <\/span><\/td>0x02c <\/span><\/td>GPIO0_27 <\/span><\/td>17 <\/span><\/td>18 <\/span><\/td>GPIO2_1  <\/span><\/td>0x08c <\/span><\/td>65 <\/span><\/td>gpio2[1]<\/span><\/td><\/tr>
gpio0[22]<\/span><\/td>22 <\/span><\/td>0x020 <\/span><\/td>EHRPWM2A <\/span><\/td>19 <\/span><\/td>20 <\/span><\/td>GPIO2_31 <\/span><\/td>0x084 <\/span><\/td>63 <\/span><\/td>gpio1[31]<\/span><\/td><\/tr>
gpio1[30]<\/span><\/td>62 <\/span><\/td>0x080 <\/span><\/td>GPIO1_30 <\/span><\/td>21 <\/span><\/td>22 <\/span><\/td>GPIO1_5  <\/span><\/td>0x014 <\/span><\/td>37 <\/span><\/td>gpio1[5]<\/span><\/td><\/tr>
gpio1[4] <\/span><\/td>36 <\/span><\/td>0x010 <\/span><\/td>GPIO1_4  <\/span><\/td>23 <\/span><\/td>24 <\/span><\/td>GPIO1_1  <\/span><\/td>0x004 <\/span><\/td>33 <\/span><\/td>gpio1[1]<\/span><\/td><\/tr>
gpio1[0] <\/span><\/td>1  <\/span><\/td>0x000 <\/span><\/td>GPIO1_0  <\/span><\/td>25 <\/span><\/td>26 <\/span><\/td>GPIO1_29 <\/span><\/td>0x07c <\/span><\/td>61 <\/span><\/td>gpio1[29]<\/span><\/td><\/tr>
gpio2[22]<\/span><\/td>86 <\/span><\/td>0x0e0 <\/span><\/td>GPIO2_22 <\/span><\/td>27 <\/span><\/td>28 <\/span><\/td>GPIO2_24 <\/span><\/td>0x0e8 <\/span><\/td>88 <\/span><\/td>gpio2[24]<\/span><\/td><\/tr>
gpio2[23]<\/span><\/td>87 <\/span><\/td>0x0e4 <\/span><\/td>GPIO2_23 <\/span><\/td>29 <\/span><\/td>30 <\/span><\/td>GPIO2_25 <\/span><\/td>0x0ec <\/span><\/td>89 <\/span><\/td>gpio2[25]<\/span><\/td><\/tr>
gpio0[10]<\/span><\/td>10 <\/span><\/td>0x0d8<\/span><\/td>UART5_CTSN<\/span><\/td>31 <\/span><\/td>32 <\/span><\/td>UART5_RTSN<\/span><\/td>0x0dc<\/span><\/td>11 <\/span><\/td>gpio0[11]<\/span><\/td><\/tr>
gpio0[9] <\/span><\/td>9 <\/span><\/td>0x0d4 <\/span><\/td>UART4_RTSN<\/span><\/td>33 <\/span><\/td>34 <\/span><\/td>UART3_RTSN<\/span><\/td>0x0cc<\/span><\/td>81 <\/span><\/td>gpio2[17]<\/span><\/td><\/tr>
gpio0[8] <\/span><\/td>8  <\/span><\/td>0x0d0<\/span><\/td>UART4_CTSN<\/span><\/td>35 <\/span><\/td>36 <\/span><\/td>UART3_CTSN<\/span><\/td>0x0c8<\/span><\/td>80 <\/span><\/td>gpio2[16]<\/span><\/td><\/tr>
gpio2[14]<\/span><\/td>78 <\/span><\/td>0x0c0 <\/span><\/td>UART5_TXD<\/span><\/td>37 <\/span><\/td>38 <\/span><\/td>UART5_RXD<\/span><\/td>0x0c4 <\/span><\/td>79 <\/span><\/td>gpio2[15]<\/span><\/td><\/tr>
gpio2[12]<\/span><\/td>76 <\/span><\/td>0x0b8 <\/span><\/td>GPIO2_12 <\/span><\/td>39 <\/span><\/td>40 <\/span><\/td>GPIO2_13 <\/span><\/td>0x0bc <\/span><\/td>77 <\/span><\/td>gpio2[13]<\/span><\/td><\/tr>
gpio2[10]<\/span><\/td>74 <\/span><\/td>0x0b0 <\/span><\/td>GPIO2_10 <\/span><\/td>41 <\/span><\/td>42 <\/span><\/td>GPIO2_11 <\/span><\/td>0x0b4 <\/span><\/td>75 <\/span><\/td>gpio2[11]<\/span><\/td><\/tr>
gpio2[8] <\/span><\/td>72 <\/span><\/td>0x0a8 <\/span><\/td>GPIO2_8  <\/span><\/td>43 <\/span><\/td>44 <\/span><\/td>GPIO2_9  <\/span><\/td>0x0ac <\/span><\/td>73 <\/span><\/td>gpio2[9]<\/span><\/td><\/tr>
gpio2[6] <\/span><\/td>70 <\/span><\/td>0x0a0 <\/span><\/td>GPIO2_6  <\/span><\/td>45 <\/span><\/td>46 <\/span><\/td>GPIO2_7  <\/span><\/td>0x0a4 <\/span><\/td>71 <\/span><\/td>gpio2[7]<\/span><\/td><\/tr><\/tbody><\/table>

<\/a><\/p>\r\n\r\n<\/span>

<\/p>\r\n\r\n<\/span>
P9 \ud5e4\ub354<\/span><\/caption>
Mode7    <\/span><\/th># <\/span><\/th>Offset<\/span><\/th>Name    <\/span><\/th>Pin <\/span><\/th>Pin <\/span><\/th>Name     <\/span><\/th>Offset<\/span><\/th># <\/span><\/th>Mode7<\/span><\/th><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>GND      <\/span><\/td>1  <\/span><\/td>2  <\/span><\/td>GND      <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>DC_3.3V  <\/span><\/td>3  <\/span><\/td>4  <\/span><\/td>DC_3.3V  <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>VDD_5V   <\/span><\/td>5  <\/span><\/td>6  <\/span><\/td>VDD_5V   <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>SYS_5V   <\/span><\/td>7  <\/span><\/td>8  <\/span><\/td>SYS_5V   <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>PWR_BUT  <\/span><\/td>9  <\/span><\/td>10 <\/span><\/td>SYS_RSTn <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
gpio0[30]<\/span><\/td>30 <\/span><\/td>0x070 <\/span><\/td>UART4_RXD<\/span><\/td>11 <\/span><\/td>12 <\/span><\/td>GPIO1_28 <\/span><\/td>0x078 <\/span><\/td>60 <\/span><\/td>gpio1[28]<\/span><\/td><\/tr>
gpio0[31]<\/span><\/td>31 <\/span><\/td>0x074 <\/span><\/td>UART4_TXD<\/span><\/td>13 <\/span><\/td>14 <\/span><\/td>EHRPWM1A <\/span><\/td>0x048 <\/span><\/td>50 <\/span><\/td>gpio1[18]<\/span><\/td><\/tr>
gpio1[16]<\/span><\/td>48 <\/span><\/td>0x040 <\/span><\/td>GPIO1_16 <\/span><\/td>15 <\/span><\/td>16 <\/span><\/td>EHRPWM1B <\/span><\/td>0x04c <\/span><\/td>51 <\/span><\/td>gpio1[19]<\/span><\/td><\/tr>
gpio0[5] <\/span><\/td>5  <\/span><\/td>0x15c <\/span><\/td>I2C1_SCL <\/span><\/td>17 <\/span><\/td>18 <\/span><\/td>I2C1_SDA <\/span><\/td>0x158 <\/span><\/td>4  <\/span><\/td>gpio0[4]<\/span><\/td><\/tr>
gpio0[13]<\/span><\/td>13 <\/span><\/td>0x17c <\/span><\/td>I2C2_SCL <\/span><\/td>19 <\/span><\/td>20 <\/span><\/td>I2C2_SDA <\/span><\/td>0x178 <\/span><\/td>12 <\/span><\/td>gpio0[12]<\/span><\/td><\/tr>
gpio0[3] <\/span><\/td>3  <\/span><\/td>0x154 <\/span><\/td>UART2_TXD<\/span><\/td>21 <\/span><\/td>22 <\/span><\/td>UART2_RXD<\/span><\/td>0x150 <\/span><\/td>2  <\/span><\/td>gpio0[2]<\/span><\/td><\/tr>
gpio1[17]<\/span><\/td>49 <\/span><\/td>0x044 <\/span><\/td>GPIO1_17 <\/span><\/td>23 <\/span><\/td>24 <\/span><\/td>UART1_TXD<\/span><\/td>0x184 <\/span><\/td>15 <\/span><\/td>gpio0[15]<\/span><\/td><\/tr>
gpio3[21]<\/span><\/td>117<\/span><\/td>0x1ac <\/span><\/td>GPIO3_21 <\/span><\/td>25 <\/span><\/td>26 <\/span><\/td>UART1_RXD<\/span><\/td>0x180 <\/span><\/td>14 <\/span><\/td>gpio0[14]<\/span><\/td><\/tr>
gpio3[19]<\/span><\/td>115<\/span><\/td>0x1a4 <\/span><\/td>GPIO3_19 <\/span><\/td>27 <\/span><\/td>28 <\/span><\/td>SPI1_CS0 <\/span><\/td>0x19c <\/span><\/td>113<\/span><\/td>gpio3[17]<\/span><\/td><\/tr>
gpio3[15]<\/span><\/td>111<\/span><\/td>0x194 <\/span><\/td>SPI1_D0  <\/span><\/td>29 <\/span><\/td>30 <\/span><\/td>SPI1_D1  <\/span><\/td>0x198 <\/span><\/td>112<\/span><\/td>gpio3[16]<\/span><\/td><\/tr>
gpio3[14]<\/span><\/td>110<\/span><\/td>0x190 <\/span><\/td>SPI1_SCLK<\/span><\/td>31 <\/span><\/td>32 <\/span><\/td>VADC     <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>AIN4     <\/span><\/td>33 <\/span><\/td>34 <\/span><\/td>AGND     <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>AIN6     <\/span><\/td>35 <\/span><\/td>36 <\/span><\/td>AIN5     <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>AIN2     <\/span><\/td>37 <\/span><\/td>38 <\/span><\/td>AIN3     <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>AIN0     <\/span><\/td>39 <\/span><\/td>40 <\/span><\/td>AIN1     <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
gpio0[20]<\/span><\/td>20 <\/span><\/td>0x1b4 <\/span><\/td>CLKOUT2  <\/span><\/td>41A<\/span><\/td>42A<\/span><\/td>GPIO0_7  <\/span><\/td>0x164 <\/span><\/td>7  <\/span><\/td>gpio0[7]<\/span><\/td><\/tr>
gpio3[20]<\/span><\/td>116<\/span><\/td>0x1a8 <\/span><\/td>GPIO3_20 <\/span><\/td>41B<\/span><\/td>42B<\/span><\/td>GPIO3_18 <\/span><\/td>0x1a0 <\/span><\/td>114<\/span><\/td>gpio3[18]<\/span><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>GND      <\/span><\/td>43 <\/span><\/td>44 <\/span><\/td>GND      <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/td><\/tr>
        <\/span><\/td>  <\/span><\/td>     <\/span><\/td>GND      <\/span><\/td>45 <\/span><\/td>46 <\/span><\/td>GND      <\/span><\/td>     <\/span><\/td>  <\/span><\/td><\/tr><\/tbody><\/table>\n","protected":false},"excerpt":{"rendered":"
\ucd9c\ucc98 : http:\/\/blog.aiui.com\/13 1. \uac1c\uc694 \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 BBB\uc5d0\uc11c GPIO\ub97c \ub2e4\ub8e8\ub294 \ubc29\ubc95\uc744 \uc815\ub9ac\ud574 \ub450\ub824\uace0 \ud569\ub2c8\ub2e4.BBB\uc5d0\uc11c GPIO\ub97c \ub2e4\ub8e8\ub294 \ubc29\ubc95\uc740 \uc5ec\ub7ec\uac00\uc9c0\uac00 \uc788\uc73c\ub098 \ubcf8 \uae00\uc5d0\uc11c\ub294 \ub514\ubc14\uc774\uc2a4 \ud2b8\ub9ac \uc624\ubc84\ub808\uc774\uc640 sys \uac00\uc0c1 \ub514\ub809\ud1a0\ub9ac\ub97c \uc774\uc6a9\ud574 \uc6d0\ud558\ub294 \ud540\uc744 GPIO\uc6a9\uc73c\ub85c \uc124\uc815\ud558\uace0 \ud14c\uc2a4\ud2b8 \ud558\ub294 \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc774 \uae00\uc758 \ub0b4\uc6a9\ub4e4\uc740 \uc81c\uac00 \uc644\uc804\ud788 \uc774\ud574\ud558\uace0 \uc790\uc2e0\uc788\uac8c \uac15\uc88c\uc758 \uac1c\ub150\uc73c\ub85c \uc815\ub9ac\ud588\ub2e4\uae30 \ubcf4\ub2e4\ub294 ‘\uc774\ub807\uac8c \uc0ac\uc6a9\ud574 \ubd24\uc2b5\ub2c8\ub2e4’ \ub77c\ub294 \uc815\ub3c4\uc758 \uc218\uc900\uc774\uace0, \uc81c \uc790\uc2e0\uc758 \uc815\ub9ac\ub85c\uc368\uc758 \uc758\ubbf8\uac00 \ub354 \uac15\ud558\ubbc0\ub85c \uadf8\uc800 \ucc38\uace0\ub9cc \ud558\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4. 1) GPIO\ub780? \uc774 \uae00\uc744 \ubcf4\uc2dc\ub824\ub294 \ub300\ubd80\ubd84\uc758 \ubd84\ub4e4\uc774 GPIO\uc5d0 \ub300\ud574 \uc798 \uc544\uc2dc\uaca0\uc73c\ub098 \ud639\uc5ec\ub77c\ub3c4 \uc0dd\uc18c\ud55c \ubd84\ub4e4\uc744 \uc704\ud574 \uac04\ub2e8\ud558\uac8c\ub9cc \uc5b8\uae09\uc744 […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[13],"tags":[],"class_list":["post-713","post","type-post","status-publish","format-standard","hentry","category-computing_singleboardcomputer"],"_links":{"self":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=713"}],"version-history":[{"count":0,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=\/wp\/v2\/posts\/713\/revisions"}],"wp:attachment":[{"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hasu0707.duckdns.org\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}