{"id":2220,"date":"2008-08-23T02:56:29","date_gmt":"2008-08-23T02:56:29","guid":{"rendered":"http:\/\/192.168.0.71:9090\/?p=1781"},"modified":"2008-08-23T02:56:29","modified_gmt":"2008-08-23T02:56:29","slug":"atmega8535-%ec%8b%9c%eb%a6%ac%ec%96%bc%ed%86%b5%ec%8b%a0-uart","status":"publish","type":"post","link":"https:\/\/talsu.net\/?p=2220","title":{"rendered":"ATmega8535 – \uc2dc\ub9ac\uc5bc\ud1b5\uc2e0 (UART)"},"content":{"rendered":"

Code Vison AVR C
\n<\/strong><\/span><\/p>\n

ATmega 8535
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

RS232 \uc2dc\ub9ac\uc5bc \ud1b5\uc2e0
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

\ucee8\ub125\ud130\uc640 \uc2e0\ud638\uc120
\n<\/strong><\/span><\/p>\n

RS232 \ud1b5\uc2e0\uc744 \uc704\ud55c \ucee8\ub125\ud130\ub294 9\ud540\uacfc 25\ud540 \ucee8\ub125\ud130\uac00 \uc788\uc73c\ub098, \ucd5c\uadfc\uc5d0\ub294 9\ud540 \ucee8\ub125\ud130\ub97c \ub9ce\uc774 \uc0ac\uc6a9\ud55c\ub2e4. \uc2e4\uc81c \ub370\uc774\ud130\uac00 \uc1a1 \uc218\uc2e0 \ub418\ub294 \ud540\uc740 TXD(3) \uc640 RXD(2) \uc774\uace0 \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.\n<\/p>\n

\"\"\/\n\t<\/p>\n

9\ud540 \ucee8\ub125\ud130\uc758 \ubaa8\uc2b5\n<\/p>\n

\n\u00a0<\/p>\n

TXD – Transmit Data\n<\/p>\n

\ube44\ub3d9\uae30\uc2dd \uc9c1\ub82c \ud1b5\uc2e0 \uc7a5\uce58\uac00 \uc678\ubd80 \uc7a5\uce58\ub85c \ub370\uc774\ud130\ub97c \ubcf4\ub0bc \ub54c, \uc9c1\ub82c \ud1b5\uc2e0 \ub370\uc774\ud130\uac00 \ub098\uc624\ub294 \uc2e0\ud638\uc120\n<\/p>\n

RXD – Receive Data\n<\/p>\n

\uc678\ubd80 \uc7a5\uce58\uc5d0\uc11c \ub4e4\uc5b4\uc624\ub294 \uc9c1\ub82c \ud1b5\uc2e0 \ub370\uc774\ud130\ub97c \uc785\ub825\ubc1b\ub294 \uc2e0\ud638\uc120\n<\/p>\n

\ucf00\uc774\ube14\uc744 \ub9cc\ub4e4 \ub54c\uc5d0\ub294 \ubc18\ub300\ucabd \ucee4\ub125\ud130\uc5d0 \uc5f0\uacb0\ud558\uae30 \uc804\uc5d0 \ud55c\ubc88 \uad50\ucc28 \uc2dc\ucf1c\uc57c \ud55c\ub2e4.<\/span> (Rx ->Tx , Tx->Rx)\n<\/p>\n

\"\"\/\n\t<\/p>\n

ATmega8535\uc5d0\uc11c\uc758 RXD, TXD
\n\t\t<\/strong><\/p>\n

MAX232
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

MAXIM\uc0ac\uc5d0\uc11c \uc0dd\uc0b0\ub418\ub294 RS-232\ud1b5\uc2e0\uc744 \uac00\ub2a5\ud1a0\ub85d \ud574\uc8fc\ub294 \uc1a1\uc218\uc2e0 IC\uc774\ub2e4. \uc1a1\uc218\uc2e0 \ub4dc\ub77c\uc774\ube0c\ub97c \uac01\uac01 2\uac1c\uc529 \uac00\uc9c0\uace0 \uc788\ub2e4.\n<\/p>\n

AVR\uacfc \ucef4\ud4e8\ud130\uac00 \uc778\uc2dd\ud558\ub294 0\uacfc 1\uc758 \uac12\uc774 \ub2e4\ub974\uae30 \ub54c\ubb38\uc5d0..<\/p>\n

\n\n\n\n\n<\/colgroup>\n\n\n\n\n
\u00a0<\/td>\n\n

\ub9c8\uc774\ucef4<\/strong><\/span><\/p>\n<\/td>\n

\n

\ucef4\ud4e8\ud130<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

0<\/strong><\/span><\/p>\n<\/td>\n

\n

0V<\/span><\/p>\n<\/td>\n

\n

-10V<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

1<\/strong><\/span><\/p>\n<\/td>\n

\n

5V<\/span><\/p>\n<\/td>\n

\n

10V<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\uc774 \ucc28\uc774\ub97c \ud574\uacb0\ud574\uc8fc\ub294 \uac83\uc774\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

\"\"\/\n\t\t<\/p>\n

TTL IC\uc758 \uc804\uc6d0\ub2e8\uc790\uc640 \ub2e4\ub974\uac8c 15\ubc88 \ud540\uc774 GND, 16\ubc88\uc774 VCC\uc774\ubbc0\ub85c \uc8fc\uc758\ud558\uc790\n<\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

IC \ub0b4\ubd80\uc5d0\ub294 VOLTAGE DOUBLER\uc640 VOLTAGE INVERTER\uac00 \uc788\ub2e4.\n<\/p>\n

DOUBLER\ub294 5V\ub97c 10V\ub85c \uc99d\ud3ed INVERTER\ub294 \uc99d\ud3ed\ub41c \uc2e0\ud638\ub97c \ubc18\uc804\n<\/p>\n

\ub0b4\ubd80\uc5d0 5V\ub97c \ucda9\uc804\ud588\ub2e4 10V\ub85c \ubcf4\ub0b4\uae30 \uc704\ud55c \ucf58\ub374\uc11c\uac00 \uc788\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

MAX232\ub294 \uc804\uc555\uc744 \ubc14\uafb8\uc5b4 \uc8fc\ub294 \uc5ed\ud560\ub9cc\uc744 \ud558\uba70 \ud1b5\uc2e0\uc744 \ud558\ub294\uac83\uc740 \uc544\ub2d8\uc5d0 \uc8fc\uc758!
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

\ud504\ub808\uc784 \ud615\uc2dd
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

\"\"\/\n\t\t<\/p>\n

\uc9c1\ub82c \ub370\uc774\ud130 \ud504\ub808\uc784\uc740 \ub3d9\uae30\ube44\ud2b8 (\uc2a4\ud0c0\ud2b8, \uc2a4\ud1b1 \ube44\ud2b8) \uc640 \uc5d0\ub7ec \uac80\uc0ac\ub97c \uc704\ud55c \ud328\ub9ac\ud2f0 \ube44\ud2b8(\uc120\ud0dd\uac00\ub2a5)\uc640 \ub370\uc774\ud130 \ube44\ud2b8\ub97c \ud3ec\ud568\ud558\ub294 1\ubb38\uc790\ub97c \uc758\ubbf8\ud55c\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

\ucef4\ud4e8\ud130 \ucabd\uc5d0\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uc124\uc815\ud55c\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

\"\"\/\n\t\t<\/p>\n

\n\u00a0<\/p>\n

\ubcf4\ub808\uc774\ud2b8 9600 \ub370\uc774\ud130 \ube44\ud2b8\ub294 8\ube44\ud2b8 \ud328\ub9ac\ud2f0 \ube44\ud2b8 \uc0ac\uc6a9 \uc548 \ud568 STOP\ube44\ud2b8\ub294 1\ub85c \uc124\uc815\ud55c \ubaa8\uc2b5\n<\/p>\n

\n\u00a0<\/p>\n

\uc2dc\ub9ac\uc5bc \ud1b5\uc2e0\uc744 \uc704\ud55c \ub808\uc9c0\uc2a4\ud130
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

ATmega8535\uc5d0\ub294 \uc2dc\ub9ac\uc5bc \ud1b5\uc2e0\uc6a9 \ucee8\ud2b8\ub864\ub7ec\uac00 \ud3ec\ud568 \ub418\uc5b4 \uc788\ub2e4.\n<\/p>\n

CPU \ub0b4\ubd80\uc5d0\uc11c CPU\uc758 \ucf54\uc5b4 \ubd80\ubd84\uacfc \uc2dc\ub9ac\uc5bc \ud1b5\uc2e0\uc6a9 \ucee8\ud2b8\ub864\ub7ec\uac00 \ub370\uc774\ud130\ub97c \uc8fc\uace0 \ubc1b\uace0, \ucee8\ud2b8\ub864\ub7ec\ub294 RxD, TxD\uc758 \ud540\uc744 \ud1b5\ud574 \uc678\ubd80\uc640 \ud1b5\uc2e0\uc744 \ud558\uace0 \uc788\ub2e4.\n<\/p>\n

\uc2dc\ub9ac\uc5bc \ud1b5\uc2e0\uc744 \uc704\ud55c \ub808\uc9c0\uc2a4\ud130\uc5d0\ub294 \uc124\uc815\uc6a9 \ub808\uc9c0\uc2a4\ud130\uc640 \ub370\uc774\ud130 \ud1b5\uc2e0\uc6a9 \ub808\uc9c0\uc2a4\ud130\uac00 \uc788\uace0 \uc124\uc815\uc6a9 \ub808\uc9c0\uc2a4\ud130\ub97c \uc774\uc6a9\ud574 \uc124\uc815\uc744 \ud558\uace0 \ud1b5\uc2e0\uc6a9 \ub808\uc9c0\uc2a4\ud130\ub97c \uc774\uc6a9\ud574 \uc2e4\uc81c \ud1b5\uc2e0\uc744 \ud55c\ub2e4\n<\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

UDR
\n<\/em><\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n
\n

7<\/strong><\/span><\/p>\n<\/td>\n

\n

6<\/strong><\/span><\/p>\n<\/td>\n

\n

5<\/strong><\/span><\/p>\n<\/td>\n

\n

4<\/strong><\/span><\/p>\n<\/td>\n

\n

3<\/strong><\/span><\/p>\n<\/td>\n

\n

2<\/strong><\/span><\/p>\n<\/td>\n

\n

1<\/strong><\/span><\/p>\n<\/td>\n

\n

0<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

RXB (Read)<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

TXB (Write)<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n\u00a0<\/p>\n

UDR\ub808\uc9c0\uc2a4\ud130\ub294 \ub370\uc774\ud130\ub97c \uc785\ub825\ud558\uba74 \uc124\uc815\ud55c \uac12\uc5d0 \ub9de\uac8c \ub370\uc774\ud130\ub97c \uc804\uc1a1\ud558\ub294 \ub808\uc9c0\uc2a4\ud130\uc774\ub2e4.\n<\/p>\n

UDR\ub808\uc9c0\uc2a4\ud130\ub97c \uc77d\uc73c\uba74 \uc218\uc2e0 \ub370\uc774\ud130 \ubc84\ud37c \ub808\uc9c0\uc2a4\ud130(RXD)\uc758 \ub0b4\uc6a9\uc744 \ubcfc\uc218 \uc788\ub2e4. \uc989, \uc1a1\uc2e0 \ub370\uc774\ud130\ub97c UDR\ub808\uc9c0\uc2a4\ud130\uc5d0 \uc4f0\uae30\ud558\uba74 \uc1a1\uc2e0\ub370\uc774\ud130 \ubc84\ud37c (TXB)\uc5d0 \uc800\uc7a5\ud558\uace0, \uc218\uc2e0 \ub370\uc774\ud130\ub97c UDR \ub808\uc9c0\uc2a4\ud130\uc5d0 \uc4f0\uae30\ud558\uba74 \uc218\uc2e0 \ub370\uc774\ud130 \ubc84\ud37c(RXB)\uc5d0 \uc218\uc2e0\ub418\uc5b4 \uc788\ub294 \uac12\uc774 \uc77d\ud600\uc9c4\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

UCSR \ub808\uc9c0\uc2a4\ud130
\n<\/em><\/strong><\/span><\/p>\n

UCSR\uc740 A,B,C\uc138 \uac1c\ub85c \uad6c\uc131 \ub418\uc5b4 \uc788\uace0, \uc0c1\ud0dc \uc124\uc815\uacfc \uc81c\uc5b4\uc758 \uae30\ub2a5\uc744 \ud55c\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

UCSRA
\n<\/em><\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n
\n

7<\/strong><\/span><\/p>\n<\/td>\n

\n

6<\/strong><\/span><\/p>\n<\/td>\n

\n

5<\/strong><\/span><\/p>\n<\/td>\n

\n

4<\/strong><\/span><\/p>\n<\/td>\n

\n

3<\/strong><\/span><\/p>\n<\/td>\n

\n

2<\/strong><\/span><\/p>\n<\/td>\n

\n

1<\/strong><\/span><\/p>\n<\/td>\n

\n

0<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

RXC<\/strong><\/span><\/p>\n<\/td>\n

\n

TXC<\/strong><\/span><\/p>\n<\/td>\n

\n

UDRE<\/strong><\/span><\/p>\n<\/td>\n

\n

FE<\/strong><\/span><\/p>\n<\/td>\n

\n

DOR<\/strong><\/span><\/p>\n<\/td>\n

\n

PE<\/strong><\/span><\/p>\n<\/td>\n

\n

U2X<\/strong><\/span><\/p>\n<\/td>\n

\n

MPCM<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

7. RXC : \uc218\uc2e0 \uc644\ub8cc \ud45c\uc2dc \ube44\ud2b8\n<\/p>\n

6. TXC : \uc1a1\uc2e0 \uc644\ub8cc \ud45c\uc2dc \ube44\ud2b8\n<\/p>\n

5. UDRE : \uc1a1\uc2e0 \ub370\uc774\ud130 \ub808\uc9c0\uc2a4\ud130 \uc900\ube44 \uc644\ub8cc \ud45c\uc2dc \ube44\ud2b8\n<\/p>\n

4. FE : \ud504\ub808\uc784 \uc5d0\ub7ec \ud45c\uc2dc \ube44\ud2b8\n<\/p>\n

3. DOR : \ub370\uc774\ud130 \uc624\ubc84\ub7f0 \uc5d0\ub7ec \ud45c\uc2dc \ube44\ud2b8\n<\/p>\n

2. PE : \ud328\ub9ac\ud2f0 \uc5d0\ub7ec \ud45c\uc2dc \ube44\ud2b8\n<\/p>\n

1. USX : \uc1a1\uc2e0 \uc18d\ub3c4 2\ubc30 \uc124\uc815\n<\/p>\n

0. MPCM : \uba40\ud2f0 \ud504\ub85c\uc138\uc11c \ud1b5\uc2e0 \ubaa8\ub4dc\n<\/p>\n

\u00a0\u00a0\u00a0\u00a0*1\ubc88\uacfc 0\ubc88\uc744 \uc124\uc815\ud558\uace0 \ub098\uba38\uc9c0\ub294 \uc77d\uae30 \uc804\uc6a9\uc774\ub2e4. (\uc0ac\uc6a9 \ud560 \ub54c 1 \uc544\ub2d0 \ub54c 0)\n<\/p>\n

\n\u00a0<\/p>\n

UCSRB
\n<\/em><\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n
\n

7<\/strong><\/span><\/p>\n<\/td>\n

\n

6<\/strong><\/span><\/p>\n<\/td>\n

\n

5<\/strong><\/span><\/p>\n<\/td>\n

\n

4<\/strong><\/span><\/p>\n<\/td>\n

\n

3<\/strong><\/span><\/p>\n<\/td>\n

\n

2<\/strong><\/span><\/p>\n<\/td>\n

\n

1<\/strong><\/span><\/p>\n<\/td>\n

\n

0<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

RXCIE<\/strong><\/span><\/p>\n<\/td>\n

\n

TXCIE<\/strong><\/span><\/p>\n<\/td>\n

\n

UDRIE<\/strong><\/span><\/p>\n<\/td>\n

\n

RXEN<\/strong><\/span><\/p>\n<\/td>\n

\n

TXEN<\/strong><\/span><\/p>\n<\/td>\n

\n

UCSZ2<\/strong><\/span><\/p>\n<\/td>\n

\n

RXB8<\/strong><\/span><\/p>\n<\/td>\n

\n

TXB8<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

7. RXCIE \uc218\uc2e0 \uc644\ub8cc \uc778\ud130\ub7fd\ud2b8 \uc778\uc5d0\uc774\ube14 \ube44\ud2b8\n<\/p>\n

6. TXCIE \uc1a1\uc2e0 \uc644\ub8cc \uc778\ud130\ub7fd\ud2b8 \uc778\uc5d0\uc774\ube14 \ube44\ud2b8\n<\/p>\n

5. UDRIE \uc1a1\uc2e0 \ub370\uc774\ud130 \ub808\uc9c0\uc2a4\ud130 \uc900\ube44 \uc644\ub8cc \uc778\ud130\ub7fd\ud2b8 \uc778\uc5d0\uc774\ube14 \ube44\ud2b8\n<\/p>\n

4. RXEN \uc218\uc2e0\uae30 \uc778\uc5d0\uc774\ube14\n<\/p>\n

3. TXEN \uc1a1\uc2e0\uae30 \uc778\uc5d0\uc774\ube14\n<\/p>\n

2. UCSZ2 \uc804\uc1a1 \ub370\uc774\ud130 \uae38\uc774 \uc120\ud0dd \ube44\ud2b8\n<\/p>\n

1. RXB8 \uc218\uc2e0 \ub370\uc774\ud130 \ube44\ud2b8 8\n<\/p>\n

0. TXB8 \uc1a1\uc2e0 \ub370\uc774\ud130 \ube44\ud2b8 8\n<\/p>\n

\n\u00a0<\/p>\n

UCSRC
\n<\/em><\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n
\n

7<\/strong><\/span><\/p>\n<\/td>\n

\n

6<\/strong><\/span><\/p>\n<\/td>\n

\n

5<\/strong><\/span><\/p>\n<\/td>\n

\n

4<\/strong><\/span><\/p>\n<\/td>\n

\n

3<\/strong><\/span><\/p>\n<\/td>\n

\n

2<\/strong><\/span><\/p>\n<\/td>\n

\n

1<\/strong><\/span><\/p>\n<\/td>\n

\n

0<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

URSEL<\/strong><\/span><\/p>\n<\/td>\n

\n

UMSEL<\/strong><\/span><\/p>\n<\/td>\n

\n

UPM1<\/strong><\/span><\/p>\n<\/td>\n

\n

UPM0<\/strong><\/span><\/p>\n<\/td>\n

\n

USBS<\/strong><\/span><\/p>\n<\/td>\n

\n

UCSZ1<\/strong><\/span><\/p>\n<\/td>\n

\n

UCSZ0<\/strong><\/span><\/p>\n<\/td>\n

\n

UCPOL<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

7. UREL \ub808\uc9c0\uc2a4\ud130 \uc120\ud0dd \ube44\ud2b8\n<\/p>\n

6. UMSEL \uc2dc\ub9ac\uc5bc \ud1b5\uc2e0 \ubaa8\ub4dc \uc124\uc815 \ube44\ud2b8\n<\/p>\n

5. UPM1 \ud328\ub9ac\ud2f0 \ubaa8\ub4dc \uc124\uc815 \ube44\ud2b8\n<\/p>\n

4. UPM0 \ud328\ub9ac\ud2f0 \ubaa8\ub4dc \uc124\uc815 \ube44\ud2b8\n<\/p>\n

3. USBS \uc815\uc9c0 \ube44\ud2b8 \uc120\ud0dd\n<\/p>\n

2. UCSZ1 \uc804\uc1a1 \ub370\uc774\ud130 \ube44\ud2b8 \uc218 \uc124\uc815\n<\/p>\n

1. UCSZ0 \uc804\uc1a1 \ub370\uc774\ud130 \ube44\ud2b8 \uc218 \uc124\uc815\n<\/p>\n

0. UCPOL \ud074\ub7ed \uadf9\uc131 \uc120\ud0dd\n<\/p>\n

\n\u00a0<\/p>\n

\ubcf4\ub808\uc774\ud2b8 \uc18d\ub3c4 \uc124\uc815 \uad00\ub828 \ub808\uc9c0\uc2a4\ud130
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\ubcf4\ub808\uc774\ud2b8 – \uc2e0\ud638 \ud558\ub098\uc758 \uc18d\ub3c4\n<\/p>\n

\ubcf4\ub808\uc774\ud2b8 \uc18d\ub3c4\ub97c \uc870\uc808 \ud558\ub294 \ub808\uc9c0\uc2a4\ud130\ub294 UBRRH\uc640 UBRRL 2\uac1c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\ub2e4. UBRRH\uc758 4\ube44\ud2b8\uc640 UBRRL\uc758 8\ube44\ud2b8\ub97c \ud569\uce5c 12\ube44\ud2b8\ub97c \uc774\uc6a9\ud558\uc5ec \uc18d\ub3c4\ub97c \uc124\uc815\ud55c\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

UBBRH
\n<\/em><\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n
\n

7<\/strong><\/span><\/p>\n<\/td>\n

\n

6<\/strong><\/span><\/p>\n<\/td>\n

\n

5<\/strong><\/span><\/p>\n<\/td>\n

\n

4<\/strong><\/span><\/p>\n<\/td>\n

\n

3<\/strong><\/span><\/p>\n<\/td>\n

\n

2<\/strong><\/span><\/p>\n<\/td>\n

\n

1<\/strong><\/span><\/p>\n<\/td>\n

\n

0<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

URSEL<\/strong><\/span><\/p>\n<\/td>\n

\n

\uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc74c ( 0 )<\/strong><\/span><\/p>\n<\/td>\n

\n

UBRR\uc758 \uac12 (11 ~8 \ube44\ud2b8)<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n\u00a0<\/p>\n

UBBRL
\n<\/em><\/strong><\/span><\/p>\n\n\n\n\n\n\n\n\n\n<\/colgroup>\n\n\n\n
\n

7<\/strong><\/span><\/p>\n<\/td>\n

\n

6<\/strong><\/span><\/p>\n<\/td>\n

\n

5<\/strong><\/span><\/p>\n<\/td>\n

\n

4<\/strong><\/span><\/p>\n<\/td>\n

\n

3<\/strong><\/span><\/p>\n<\/td>\n

\n

2<\/strong><\/span><\/p>\n<\/td>\n

\n

1<\/strong><\/span><\/p>\n<\/td>\n

\n

0<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

UBRR\uc758 \uac12 (7 ~0 \ube44\ud2b8)<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\n\u00a0<\/p>\n

UBRRH\ub294 UCSRC\ub808\uc9c0\uc2a4\ud130\uc640 \uac19\uc740 \ubc88\uc9c0\ub97c \uc0ac\uc6a9 \ud558\uace0 \uc788\ub2e4. \uadf8\ub807\uae30 \ub54c\ubb38\uc5d0 UCSRC\ub85c \uc0ac\uc6a9 \ud560 \uac83\uc778\uc9c0 UBRRH\ub85c \uc0ac\uc6a9 \ud560 \uac83\uc778\uc9c0 \uc120\ud0dd\uc744 \ud574\uc57c \ud558\ub294\ub370, \uc774 \uae30\ub2a5\uc744 \ud558\ub294 \uac83\uc774 7\ubc88 URSEL\ube44\ud2b8\uc774\ub2e4.\n<\/p>\n

URSEL\uc774 0\uc77c \ub54c UBRRH\uc758 \uae30\ub2a5\uc744 \uac16\uace0 1\uc77c \ub54c UCSRC\uc758 \uae30\ub2a5\uc744 \uac16\ub294\ub2e4.\n<\/p>\n

\n\u00a0<\/p>\n

UBRR\uc758 \uac12\uc740 \ubcf4\ub808\uc774\ud2b8\uc640 \uc2dc\uc2a4\ud15c \ud074\ub7ed\uc744 \uc774\uc6a9\ud558\uc5ec \uacc4\uc0b0 \ud55c\ub2e4.\n<\/p>\n<\/p>\n

\uc608\ub97c \ub4e4\uc5b4 \uc2dc\uc2a4\ud15c \ud074\ub7ed\uc774 16Mhz \uc774\uace0 \ubcf4\ub808\uc774\ud2b8\ub97c 9600 bps\ub85c \uc7a1\uc558\uc744 \ub54c\n<\/p>\n

\n\u00a0<\/p>\n<\/p>\n

UBRR\uc758 \uac12\uc740 103.1666…. \uc774 \ub41c\ub2e4.\n<\/p>\n

\uc5ec\uae30\uc11c \uc18c\uc218\uc810 \uc774\ud558\ub97c \ubc84\ub9ac\uace0 103\uc744 2\uc9c4\uc218\ub85c \ubcc0\ud658\ud558\uba74 1100111\uc774 \ub41c\ub2e4.\n<\/p>\n

\uacb0\uad6d UBRRH\uc758 4 \ube44\ud2b8\uc5d0\ub294 \ubaa8\ub450 0\uc774 \ub4e4\uc5b4\uac00\uace0 UBRRL\uc5d0\ub294 01100111\uc774 \ub4e4\uc5b4\uac00\ubbc0\ub85c, \ub2e4\uc74c\uacfc \uac19\uc774 \uc785\ub825 \ud55c\ub2e4.\n<\/p>\n

\u00a0\u00a0\u00a0\u00a0UBRRH=0;
\n<\/em><\/strong><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0UBRRH=103;\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ubb3c\ub860<\/span> 0b01100111<\/span>\uc73c\ub85c\ub3c4<\/span>
\n\t\t\t\t\t\t<\/span>\uc785\ub825<\/span>
\n\t\t\t\t\t\t<\/span>\uac00\ub2a5\ud558\ub2e4<\/span>.<\/span><\/span>
\n\t\t\t\t\t<\/em><\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

\ub370\uc774\ud130 \uc804\uc1a1 \ub808\uc9c0\uc2a4\ud130
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\uc9c1\ub82c \ud1b5\uc2e0\uc5d0 \uc0ac\uc6a9\ud558\ub294 \uc785\ucd9c\ub825 \ud568\uc218
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

void puts(char *str)
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\uc678\ubd80\ub85c SRAM\uc758 \ubb38\uc790\uc5f4\uc744 \ucd9c\ub825 \ud558\ub294 \uae30\ub2a5\uc744 \uac00\uc9c4\ub2e4. \ubb38\uc790\uc5f4\uc758 \ub05d \ubd80\ubd84\uc5d0\ub294 null(0x0A)\ub97c \ucd94\uac00\ud558\uc5ec \ucd9c\ub825\ud55c\ub2e4. null \ubb38\uc790\ub294 \ud130\ubbf8\ub110 \ud654\uba74\uc5d0\uc11c \uc904\ubc14\uafb8\uae30\ub97c \ud55c\ub2e4.
\n<\/span><\/p>\n

\ud558\uc9c0\ub9cc \uc904\uc758 \ub9e8 \uc55e\uc774 \uc544\ub2cc \ucd5c\uc885 \ucd9c\ub825\uc9c0\uc810\uc758 \ubc14\ub85c \ub2e4\uc74c \uc904\ub85c \ucd9c\ub825 \ub41c\ub2e4.
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

Ex)\u00a0\u00a0\u00a0\u00a0Hello NClab!
\n<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Hello NClab!
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\ud130\ubbf8\ub110\uc758 \uc81c\uc77c \uccab\uc904\ub85c \uc904\ubc14\uafc8\uc744 \ud558\uae30 \uc704\ud574\uc11c\ub294 \uc81c\uc5b4 \ubb38\uc790\uc778 “r”=>”0x0D+0x0A”\ub97c \ub05d \ubd80\ubd84\uc5d0 \ucca8\uac00\ud558\uac70\ub098 \ub2e4\uc74c \ubb38\uc7a5\uc5d0 “0x0D”\ub97c \ucd9c\ub825 \ud558\uc5ec \ucee4\uc11c\ub97c \ub9e8\uc55e\uc73c\ub85c \uc774\ub3d9 \uc2dc\ud0a8\ub2e4.
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

void putsf(char flash *str)
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\uc678\ubd80\ub85c Flash\uc758 \ubb38\uc790\uc5f4\uc744 \ucd9c\ub825 \ud558\ub294 \uae30\ub2a5\uc744 \uac00\uc9c4\ub2e4.
\n<\/span><\/p>\n

\uc904\ubc14\uafc8 \ud615\uc2dd\uc740 puts\uc640 \ub3d9\uc77c
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

void printf(char flash *fmtstr [,arg1,arg2,….])
\n<\/span><\/p>\n

fmtstr \ubb38\uc790\uc5f4\uc5d0 \uc788\ub294 \ubb38\uc790\uc5f4\uc744 \ucd9c\ub825 \ud558\ub294 \uae30\ub2a5\uc744 \uac00\uc9c4\ub2e4. \ud2b9\ud788, fmtstr\uc740 \uc0c1\uc218\uc774\uba70 Flash \uba54\ubaa8\ub9ac\uc5d0 \uc704\uce58\ud574 \uc788\uc5b4\uc57c \ud55c\ub2e4.
\n<\/span><\/p>\n

Ex) int_val = 112;
\n<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0printf(“Interger value =%5i”, int_val);
\n<\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\/\/ %5i \ub294 5\uce78\uc5d0 \uc815\uc218\ub97c \ucd9c\ub825 \ud558\ub77c\ub294 \ub73b
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

\uc9c1\ub82c \ud1b5\uc2e0 \ud504\ub85c\uadf8\ub7a8
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

\ucd9c\ub825 \ud568\uc218\ub4e4\uc744 \uc0ac\uc6a9\ud574\ubcf4\uc790
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

#include <mega8535.h>
\n<\/em><\/span><\/p>\n

#include <stdio.h>
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

void rs232_putchar(void)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ud55c\uae00\uc790\uc529<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825\ud558\ub294<\/span> putchar()<\/span>\uc744<\/span>
\n\t\t\t\t\t\t<\/span>\uc0ac\uc6a9\ud55c<\/span>
\n\t\t\t\t\t\t<\/span>\ud568\uc218<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

putchar(‘I’);
\n<\/em><\/span><\/p>\n

putchar(‘ ‘);
\n<\/em><\/span><\/p>\n

putchar(‘L’);
\n<\/em><\/span><\/p>\n

putchar(‘O’);
\n<\/em><\/span><\/p>\n

putchar(‘V’);
\n<\/em><\/span><\/p>\n

putchar(‘E’);
\n<\/em><\/span><\/p>\n

putchar(‘ ‘);
\n<\/em><\/span><\/p>\n

putchar(‘N’);
\n<\/em><\/span><\/p>\n

putchar(‘C’);
\n<\/em><\/span><\/p>\n

putchar(0x0A);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc904\ubc14\uafc8<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

putchar(0x0D);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ucee4\uc11c<\/span>
\n\t\t\t\t\t\t<\/span>\uc81c\uc77c<\/span>
\n\t\t\t\t\t\t<\/span>\uc55e\uc73c\ub85c<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

}
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

void main(void)
\n<\/em><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

char data[] = “I LOVE NC 2”;\u00a0\u00a0\u00a0\u00a0<\/em>\/\/SRAM<\/span>\uc758<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\uc5f4\uc744<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span>
\n\t\t\t\t\t\t<\/span>\ud558\uae30<\/span>
\n\t\t\t\t\t\t<\/span>\uc704\ud55c<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\uc5f4<\/span>
\n\t\t\t\t\t\t<\/span>\ubc30\uc5f4<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

\/\/ USART initialization
\n<\/span><\/p>\n

\/\/ Communication Parameters: 8 Data, 1 Stop, No Parity
\n<\/span><\/p>\n

\/\/ USART Receiver: On
\n<\/span><\/p>\n

\/\/ USART Transmitter: On
\n<\/span><\/p>\n

\/\/ USART Mode: Asynchronous
\n<\/span><\/p>\n

\/\/ USART Baud Rate: 9600
\n<\/span><\/p>\n

UCSRA=0x00;
\n<\/em><\/span><\/p>\n

UCSRB=0x18;
\n<\/em><\/span><\/p>\n

UCSRC=0x86;
\n<\/em><\/span><\/p>\n

UBRRH=0x00;
\n<\/em><\/span><\/p>\n

UBRRL=0x33;
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

\u00a0\u00a0\u00a0\u00a0rs232_putchar();\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ud55c\uae00\uc790\uc529<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span>
\n\t\t\t\t\t\t<\/span>\ud558\ub294<\/span>
\n\t\t\t\t\t\t<\/span>\ud568\uc218<\/span>
\n\t\t\t\t\t\t<\/span>\ud638\ucd9c<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0
\n<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0puts(data);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/SRAM<\/span>\uc758<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\uc5f4<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0putchar(0x0D);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc904\ubc14\uafc8<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\n\u00a0<\/p>\n

\u00a0\u00a0\u00a0\u00a0putsf(“I LOVE NC 3 r”);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/Flash<\/span>\uc758<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\uc5f4<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span> (<\/span>\uc904\ubc14\uafc8<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790<\/span> r)<\/span>\ud3ec\ud568<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

}
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

\uacb0\uacfc
\n<\/em><\/span><\/p>\n

I LOVE NC
\n<\/span><\/p>\n

I LOVE NC 2
\n<\/span><\/p>\n

I LOVE NC 3
\n<\/span><\/p>\n

\n\u00a0<\/p>\n

\n\u00a0<\/p>\n

\uc785\ub825\uc740 \uc5b4\ub5bb\uac8c \ubc1b\ub294\uc9c0 \uc54c\uc544\ubcf4\uc790
\n<\/strong><\/span><\/p>\n

\n\u00a0<\/p>\n

#include <mega8535.h>
\n<\/em><\/span><\/p>\n

#include <stdio.h>
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

unsigned char rx_data;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc218\uc2e0\ub41c<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\ubc1b\uae30<\/span>
\n\t\t\t\t\t\t<\/span>\uc704\ud55c<\/span>
\n\t\t\t\t\t\t<\/span>\uc804\uc5ed<\/span>
\n\t\t\t\t\t\t<\/span>\ubcc0\uc218<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\n\u00a0<\/p>\n

void led_control(void)
\n<\/em><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

rx_data = getchar();\u00a0\u00a0\u00a0\u00a0<\/em>\/\/getchar()<\/span>\uc740<\/span>
\n\t\t\t\t\t\t<\/span>\uc218\uc2e0<\/span>
\n\t\t\t\t\t\t<\/span>\ub370\uc774\ud130\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\ubc1b\ub294<\/span>
\n\t\t\t\t\t\t<\/span>\ud568\uc218<\/span>
\n\t\t\t\t\t\t<\/span>\uc774\ub2e4<\/span>(UDR).<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

putchar(rx_data);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ubc1b\uc740<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span>
\n\t\t\t\t\t\t<\/span>\ud568\uc73c\ub85c\uc368<\/span>
\n\t\t\t\t\t\t<\/span>\uc5d0\ucf54<\/span>
\n\t\t\t\t\t\t<\/span>\ud6a8\uacfc<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

switch (rx_data) {\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ubc1b\uc740<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\uc5d0<\/span>
\n\t\t\t\t\t\t<\/span>\ub530\ub77c<\/span>
\n\t\t\t\t\t\t<\/span>\ud589\ub3d9<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

case 0x30: PORTA = 0x00;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/0X30<\/span>\uc740<\/span> ‘0’<\/span>\uc5d0<\/span>
\n\t\t\t\t\t\t<\/span>\ud574\ub2f9\ud558\ub294<\/span> ASCII<\/span>\ucf54\ub4dc\uc784<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

break;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/’0′<\/span>\uc77c\ub54c<\/span> PORTA<\/span>\uc5d0<\/span> 0<\/span>\uc744<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

case 0x31: PORTA = 0x01;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/0X31<\/span>\uc740<\/span> ‘1’<\/span>\uc5d0<\/span>
\n\t\t\t\t\t\t<\/span>\ud574\ub2f9\ud558\ub294<\/span> ASCII<\/span>\ucf54\ub4dc\uc784<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

break;
\n<\/em><\/span><\/p>\n

case 0x32: PORTA = 0x02;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/0X32<\/span>\uc740<\/span> ‘2’<\/span>\uc5d0<\/span>
\n\t\t\t\t\t\t<\/span>\ud574\ub2f9\ud558\ub294<\/span> ASCII<\/span>\ucf54\ub4dc\uc784<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

break;
\n<\/em><\/span><\/p>\n

case ‘3’: PORTA = 0x03;\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc9c1\uc811<\/span> ‘3’<\/span>\uc774\ub77c\ub294<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\uc801\uc5b4<\/span>
\n\t\t\t\t\t\t<\/span>\uc904<\/span>
\n\t\t\t\t\t\t<\/span>\uc218<\/span>
\n\t\t\t\t\t\t<\/span>\uc788\uc74c<\/span><\/strong>
\n\t\t\t\t\t\t<\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

break;
\n<\/em><\/span><\/p>\n

case ‘4’ :PORTA = 0x04;
\n<\/em><\/span><\/p>\n

break;
\n<\/em><\/span><\/p>\n

case ‘5’: PORTA = 0x05;
\n<\/em><\/span><\/p>\n

break;
\n<\/em><\/span><\/p>\n

case ‘6’: PORTA = 0b00110011;\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ubb3c\ub860<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825\uc740<\/span> 2<\/span>\uc9c4\uc218\ub85c\ub3c4<\/span>
\n\t\t\t\t\t\t<\/span>\uc4f8\uc218<\/span>
\n\t\t\t\t\t\t<\/span>\uc788\ub2e4<\/span>.<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

break;
\n<\/em><\/span><\/p>\n

default: PORTA = 0x00;
\n<\/em><\/span><\/p>\n

};
\n<\/em><\/span><\/p>\n

}
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

void main(void)
\n<\/em><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

PORTA=0x00;
\n<\/em><\/span><\/p>\n

DDRA=0xFF;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/PORTA<\/span>\ub294<\/span>
\n\t\t\t\t\t\t<\/span>\ubaa8\ub450<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span>
\n\t\t\t\t\t\t<\/span>\ubaa8\ub4dc<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

\/\/ USART initialization
\n<\/span><\/p>\n

\/\/ Communication Parameters: 8 Data, 1 Stop, No Parity
\n<\/span><\/p>\n

\/\/ USART Receiver: On
\n<\/span><\/p>\n

\/\/ USART Transmitter: On
\n<\/span><\/p>\n

\/\/ USART Mode: Asynchronous
\n<\/span><\/p>\n

\/\/ USART Baud Rate: 9600
\n<\/span><\/p>\n

UCSRA=0x00;
\n<\/em><\/span><\/p>\n

UCSRB=0x18;
\n<\/em><\/span><\/p>\n

UCSRC=0x86;
\n<\/em><\/span><\/p>\n

UBRRH=0x00;
\n<\/em><\/span><\/p>\n

UBRRL=0x33;
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

while (1)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ubb34\ud55c\ub8e8\ud504\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\uc785\ub825\uc744<\/span>
\n\t\t\t\t\t\t<\/span>\uac10\uc9c0<\/span>
\n\t\t\t\t\t\t<\/span>\ud55c\ub2e4<\/span>.<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

led_control();\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ud568\uc218<\/span>
\n\t\t\t\t\t\t<\/span>\ud638\ucd9c<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

};
\n<\/em><\/span><\/p>\n

}
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

\uacb0\uacfc
\n<\/em><\/span><\/p>\n

0~6\uae4c\uc9c0\uc758 \uc785\ub825\uc5d0 \ub530\ub77c LED\uac00 \ubc18\uc751\ud55c\ub2e4.
\n<\/em><\/span><\/p>\n

\uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8 : \uc785\ub825\uc744 \ubc1b\uc544 LCD\uc5d0 \ud45c\uc2dc \ud574\ubcf4\uc790
\n<\/strong><\/span><\/p>\n

#include <mega8535.h>
\n<\/em><\/span><\/p>\n

#asm
\n<\/em><\/span><\/p>\n

.equ __lcd_port=0x15
\n<\/em><\/span><\/p>\n

#endasm
\n<\/em><\/span><\/p>\n

#include <lcd.h>
\n<\/em><\/span><\/p>\n

#include <stdio.h>
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

unsigned char getdata;\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc785\ub825\ub41c<\/span> ASCII<\/span>\ucf54\ub4dc\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\ub2f4\uc744<\/span>
\n\t\t\t\t\t\t<\/span>\ubcc0\uc218<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\n\u00a0<\/p>\n

void char_input (void)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc785\ub825<\/span>
\n\t\t\t\t\t\t<\/span>\ubc1b\uc740<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\uc5d0<\/span>
\n\t\t\t\t\t\t<\/span>\ub530\ub77c<\/span>
\n\t\t\t\t\t\t<\/span>\ud589\ub3cc\ud560<\/span>
\n\t\t\t\t\t\t<\/span>\ud568\uc218<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0getdata = getchar();\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc785\ub825\ub41c<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\ubc1b\uace0<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

switch (getdata){
\n<\/em><\/span><\/p>\n

case 0x0D:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/Enter<\/span>\ud0a4<\/span><\/strong>
\n\t\t\t\t\t\t<\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0lcd_gotoxy(0,1);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/2<\/span>\ud589<\/span> 1<\/span>\uc5f4\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\ucee4\uc11c<\/span>
\n\t\t\t\t\t\t<\/span>\uc62e\uae40<\/span> (<\/span>\uc904\ubc14\uafc8<\/span><\/strong>)<\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0break;
\n<\/em><\/span><\/p>\n

case 0x1B:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/Esc<\/span>\ud0a4<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0_lcd_ready();\u00a0\u00a0\u00a0\u00a0<\/em>\/\/LCD <\/span>\ub370\uc774\ud130<\/span>
\n\t\t\t\t\t\t<\/span>\uc218\uc2e0<\/span>
\n\t\t\t\t\t\t<\/span>\uc900\ube44<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0_lcd_write_data(0b00000001);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ud074\ub9ac\uc5b4<\/span>
\n\t\t\t\t\t\t<\/span>\uba85\ub839<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0break;
\n<\/em><\/span><\/p>\n

case 0x09:\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/TAB<\/span>\ud0a4<\/span><\/strong>
\n\t\t\t\t\t\t<\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0_lcd_ready();
\n<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0_lcd_write_data(0b00011000);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc804\uccb4<\/span>
\n\t\t\t\t\t\t<\/span>\ud654\uba74<\/span>
\n\t\t\t\t\t\t<\/span>\uc67c\ucabd\uc73c\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\uc26c\ud504\ud2b8<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0break;
\n<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0case 0x08: _lcd_ready();\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/BackSpace<\/span>\ud0a4<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0_lcd_write_data(0b00010000);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ucee4\uc11c\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\uc67c\ucabd\uc73c\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\ud55c\uce78<\/span>
\n\t\t\t\t\t\t<\/span>\uc62e\uae40<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0lcd_putchar(0x20);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uacf5\ubc31\ubb38\uc790<\/span>
\n\t\t\t\t\t\t<\/span>\uc785\ub825<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0_lcd_ready();
\n<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0_lcd_write_data(0b00010000);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ucee4\uc11c\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\uc67c\ucabd\uc73c\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\ud55c\uce78<\/span>
\n\t\t\t\t\t\t<\/span>\uc62e\uae40<\/span><\/strong><\/span>
\n\t\t\t\t<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0break;
\n<\/em><\/span><\/p>\n

default:
\n<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0lcd_putchar(getdata);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ubc1b\uc740<\/span>
\n\t\t\t\t\t\t<\/span>\ubb38\uc790\ub97c<\/span> LCD<\/span>\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0putchar(getdata);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ucef4\ud4e8\ud130<\/span>
\n\t\t\t\t\t\t<\/span>\ud654\uba74\uc5d0<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span> (<\/span>\uc5d0\ucf54<\/span><\/strong>)<\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0PORTA = getdata;\u00a0\u00a0\u00a0\u00a0<\/em>\/\/LED<\/span>\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825<\/span> (ASCII code<\/span>\ub97c<\/span>
\n\t\t\t\t\t\t<\/span>\ubcfc\uc218<\/span>
\n\t\t\t\t\t\t<\/span>\uc788\ub2e4<\/span><\/strong>.)<\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

};
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

}\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

void main(void)
\n<\/em><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

PORTA=0x00;
\n<\/em><\/span><\/p>\n

DDRA=0xFF; \u00a0\u00a0\u00a0\u00a0<\/em>\/\/LED<\/span>\ub85c<\/span> ASCII code<\/span>\ucd9c\ub825\uc744<\/span>
\n\t\t\t\t\t\t<\/span>\uc704\ud574<\/span>
\n\t\t\t\t\t\t<\/span>\ubaa8\ub450<\/span>
\n\t\t\t\t\t\t<\/span>\ucd9c\ub825\ubaa8\ub4dc\ub85c<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

\n\u00a0<\/p>\n

\/\/ USART initialization
\n<\/span><\/p>\n

\/\/ Communication Parameters: 8 Data, 1 Stop, No Parity
\n<\/span><\/p>\n

\/\/ USART Receiver: On
\n<\/span><\/p>\n

\/\/ USART Transmitter: On
\n<\/span><\/p>\n

\/\/ USART Mode: Asynchronous
\n<\/span><\/p>\n

\/\/ USART Baud rate: 9600
\n<\/span><\/p>\n

UCSRA=0x00;
\n<\/em><\/span><\/p>\n

UCSRB=0x18;
\n<\/em><\/span><\/p>\n

UCSRC=0x86;
\n<\/em><\/span><\/p>\n

UBRRH=0x00;
\n<\/em><\/span><\/p>\n

UBRRL=0x33;
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

lcd_init(16);
\n<\/em><\/span><\/p>\n

_lcd_ready();
\n<\/em><\/span><\/p>\n

_lcd_write_data(0b00001111);\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ud45c\uc2dc<\/span> ON\/OFF<\/span>\uc81c\uc5b4<\/span>
\n\t\t\t\t\t\t<\/span>\ud45c\uc2dc<\/span>,<\/span>\ucee4\uc11c<\/span>,<\/span>\uc810\uba78<\/span>
\n\t\t\t\t\t\t<\/span>\ubaa8\ub450<\/span><\/strong> ON<\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

printf(“Enter : “);\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\uc785\ub825\ud558\ub77c\ub294<\/span>
\n\t\t\t\t\t\t<\/span>\uc548\ub0b4\ubb38<\/span>
\n\t\t\t\t\t\t<\/span>\ud45c\uc2dc<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

while (1)\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ubb34\ud55c\ub8e8\ud504\ub85c<\/span>
\n\t\t\t\t\t\t<\/span>\uc785\ub825\uc744<\/span>
\n\t\t\t\t\t\t<\/span>\uac10\uc9c0<\/span><\/strong>
\n\t\t\t\t\t<\/span><\/span><\/span><\/p>\n

{
\n<\/em><\/span><\/p>\n

\u00a0\u00a0\u00a0\u00a0char_input();\u00a0\u00a0\u00a0\u00a0<\/em>\/\/<\/span>\ud568\uc218<\/span>
\n\t\t\t\t\t\t<\/span>\ud638\ucd9c<\/span><\/strong><\/span> \u00a0\u00a0\u00a0\u00a0
\n<\/em><\/span><\/p>\n

};
\n<\/em><\/span><\/p>\n

}
\n<\/em><\/span><\/p>\n

\n\u00a0<\/p>\n

\/*********************************************
\n<\/strong><\/span><\/p>\n

This program was produced by Talsu
\n<\/strong><\/span><\/p>\n

RS232\uc2dc\ub9ac\uc5bc \ud1b5\uc2e0\uc744 \uc774\uc6a9\ud558\uc5ec \ud0a4\ubcf4\ub4dc\uc758 \uc785\ub825\uc744 \ubc1b\uc544
\n<\/strong><\/span><\/p>\n

LCD\ud654\uba74\uc5d0 \ud45c\uc2dc \ud574\uc8fc\ub294 \ud504\ub85c\uadf8\ub7a8 \uc785\ub2c8\ub2e4.
\n<\/strong><\/span><\/p>\n

\ud0a4 \uc785\ub825\uc774 \uc790\uc720 \ub86d\uac8c \ub418\uace0.
\n<\/strong><\/span><\/p>\n

Enter\ud0a4 = \uc904\ubc14\uafc8
\n<\/strong><\/span><\/p>\n

Backspace = \ud55c\uae00\uc790 \uc9c0\uc6b0\uae30
\n<\/strong><\/span><\/p>\n

space = \ub744\uc6b0\uae30
\n<\/strong><\/span><\/p>\n

TAB = \ud654\uba74 \uc26c\ud504\ud2b8
\n<\/strong><\/span><\/p>\n

*********************************************\/
\n<\/strong><\/span><\/p>\n<\/p>\n

ik55.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Code Vison AVR C ATmega 8535 \u00a0 RS232 \uc2dc\ub9ac\uc5bc \ud1b5\uc2e0 \u00a0 \ucee8\ub125\ud130\uc640 \uc2e0\ud638\uc120 RS232 \ud1b5\uc2e0\uc744 \uc704\ud55c \ucee8\ub125\ud130\ub294 9\ud540\uacfc 25\ud540 \ucee8\ub125\ud130\uac00 \uc788\uc73c\ub098, \ucd5c\uadfc\uc5d0\ub294 9\ud540 \ucee8\ub125\ud130\ub97c \ub9ce\uc774 \uc0ac\uc6a9\ud55c\ub2e4. \uc2e4\uc81c \ub370\uc774\ud130\uac00 \uc1a1 \uc218\uc2e0 \ub418\ub294 \ud540\uc740 TXD(3) \uc640 RXD(2) \uc774\uace0 \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4. 9\ud540 \ucee8\ub125\ud130\uc758 \ubaa8\uc2b5 \u00a0 TXD – Transmit Data \ube44\ub3d9\uae30\uc2dd \uc9c1\ub82c \ud1b5\uc2e0 \uc7a5\uce58\uac00 \uc678\ubd80 \uc7a5\uce58\ub85c \ub370\uc774\ud130\ub97c \ubcf4\ub0bc […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[17],"tags":[57,60,76,269,380],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pXV5a-zO","_links":{"self":[{"href":"https:\/\/talsu.net\/index.php?rest_route=\/wp\/v2\/posts\/2220"}],"collection":[{"href":"https:\/\/talsu.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/talsu.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/talsu.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/talsu.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2220"}],"version-history":[{"count":0,"href":"https:\/\/talsu.net\/index.php?rest_route=\/wp\/v2\/posts\/2220\/revisions"}],"wp:attachment":[{"href":"https:\/\/talsu.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2220"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/talsu.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2220"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/talsu.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}