{"id":7602,"date":"2018-07-14T18:10:53","date_gmt":"2018-07-14T09:10:53","guid":{"rendered":"https:\/\/okiraku-camera.tokyo\/blog\/?p=7602"},"modified":"2021-09-21T17:48:33","modified_gmt":"2021-09-21T08:48:33","slug":"attiny-%e3%82%a6%e3%82%a9%e3%83%83%e3%83%81%e3%83%89%e3%83%83%e3%82%b0%e3%82%bf%e3%82%a4%e3%83%9e%e5%89%b2%e8%be%bc%e3%81%bf%e3%81%a7led%e3%83%81%e3%82%ab%e3%83%81%e3%82%ab","status":"publish","type":"post","link":"https:\/\/okiraku-camera.tokyo\/blog\/?p=7602","title":{"rendered":"ATtiny \u30a6\u30a9\u30c3\u30c1\u30c9\u30c3\u30b0\u30bf\u30a4\u30de\u5272\u8fbc\u307f\u3067LED\u30c1\u30ab\u30c1\u30ab"},"content":{"rendered":"<h1>\u6982\u8981<\/h1>\n<p>ATtiny85\u3067\u3001TC(\u30bf\u30a4\u30de\u30fc\u30ab\u30a6\u30f3\u30c8)\u30e6\u30cb\u30c3\u30c8\u306e\u30bf\u30a4\u30de\u30fc\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5272\u8fbc\u307f\u306e\u4ee3\u308f\u308a\u306b\u3001WDT(\u30a6\u30a9\u30c3\u30c1\u30c9\u30c3\u30b0\u30bf\u30a4\u30de\u30fc)\u5272\u8fbc\u307f\u3092\u4f7f\u3063\u3066\u307f\u308b\u3002WDT\u5272\u8fbc\u307f\u3092\u4f7f\u3048\u3070\u3001\u30a2\u30a4\u30c9\u30eb\u30b9\u30ea\u30fc\u30d7\u306b\u6bd4\u3079\u3066\u6d88\u8cbb\u96fb\u6d41\u304c\u6975\u3081\u3066\u5c0f\u3055\u3044\u30d1\u30ef\u30fc\u30c0\u30a6\u30f3\u30b9\u30ea\u30fc\u30d7\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3002<br \/>\n\u52d5\u4f5c\u306e\u78ba\u8a8d\u306e\u305f\u3081\u3001WDT\u5272\u8fbc\u307f\u306b\u3088\u308b\u30b9\u30ea\u30fc\u30d7\u5fa9\u5e30\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067LED\u3092\u70b9\u3051\u305f\u308a\u6d88\u3057\u305f\u308a\u3057\u3066\u30c1\u30ab\u30c1\u30ab\u3055\u305b\u3066\u307f\u305f\u3002<\/p>\n<figure id=\"attachment_7380\" aria-describedby=\"caption-attachment-7380\" style=\"width: 552px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/okiraku-camera.tokyo\/blog\/wp-content\/uploads\/2018\/05\/5a506c78a26c7fea65b3546dc14e8219.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-7380\" src=\"https:\/\/okiraku-camera.tokyo\/blog\/wp-content\/uploads\/2018\/05\/5a506c78a26c7fea65b3546dc14e8219-552x414.jpg\" alt=\"\" width=\"552\" height=\"414\" \/><\/a><figcaption id=\"caption-attachment-7380\" class=\"wp-caption-text\">ATtiny85\u306845V<\/figcaption><\/figure>\n<h2>\u30a6\u30a9\u30c3\u30c1\u30c9\u30c3\u30b0\u30bf\u30a4\u30de\u30fc\u306b\u3064\u3044\u3066<\/h2>\n<p>ATtiny5\u30b7\u30ea\u30fc\u30ba\u306e\u30a6\u30a9\u30c3\u30c1\u30c9\u30c3\u30b0\u30bf\u30a4\u30de\u30fc(WDT)\u306f\u3001\u5c02\u7528\u306e128kHz\u30aa\u30b7\u30ec\u30fc\u30bf\u3092\u5099\u3048\u3066\u3044\u308b\u306e\u3067\u3001\u4ed6\u306e\u30af\u30ed\u30c3\u30af\u3092\u6b62\u3081\u3066\u3044\u308b\u3068\u304d\u3082\u52d5\u4f5c\u3092\u6301\u7d9a\u3059\u308b\u3002128kHz\u3092WDT\u5c02\u7528\u306e\u30d7\u30ea\u30b9\u30b1\u30fc\u30e9\u3092\u4f7f\u3063\u3066\u5206\u5468\u3059\u308b\u3053\u3068\u3067\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u309210\u901a\u308a\u306b\u8a2d\u5b9a\u3067\u304d\u308b(16msec\uff5e8.0sec)\u3002\u306a\u304a\u3001TC\u30e6\u30cb\u30c3\u30c8\u3068\u306f\u9055\u3063\u3066WDT\u306e\u3042\u308b\u6642\u70b9\u3067\u306e\u30ab\u30a6\u30f3\u30bf\u5024\u3092\u5f97\u305f\u308a\u3001\u4efb\u610f\u306e\u5024\u3092\u30bb\u30c3\u30c8\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044(wdr\u547d\u4ee4\u306b\u3088\u3063\u3066\u30af\u30ea\u30a2\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u308b)\u3002<\/p>\n<p>WDT\u672c\u6765\u306e\u4f7f\u3044\u65b9\u306f\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u306bATtiny\u3092\u30ea\u30b9\u30bf\u30fc\u30c8\u3059\u308b\u3053\u3068\u3067\u30d7\u30ed\u30b0\u30e9\u30e0\u304c(\u7121\u9650\u30eb\u30fc\u30d7\u306a\u3069\u306b\u3088\u308a)\u505c\u6b62\u3059\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u3002\u305f\u3068\u3048\u3070\u901a\u5e38\u306f1\u79d2\u4ee5\u5185\u306b\u51e6\u7406\u304c\u7d42\u308f\u308b\u3088\u3046\u306a\u30eb\u30fc\u30d7\u51e6\u7406\u306a\u3089\u3070\u3001WDT\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u30921\u79d2\u9593\u3068\u3057\u30eb\u30fc\u30d7\u306e\u5148\u982d\u3067wdr(Watchdog Reset)\u547d\u4ee4\u3092\u5b9f\u884c\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3002\u4f55\u304b\u306e\u7570\u5e38\u304c\u3042\u3063\u30661\u79d2\u7d4c\u3063\u3066\u3082\u30eb\u30fc\u30d7\u306e\u5148\u982d\u306b\u623b\u3089\u306a\u3051\u308c\u3070\u3001WDT\u30ea\u30bb\u30c3\u30c8\u304c\u304b\u304b\u308b\u3053\u3068\u306b\u306a\u308b\u3002<br \/>\nATtiny\u3067\u306f\u3001\u30ea\u30bb\u30c3\u30c8\u306e\u4ee3\u308f\u308a\u306b\u5272\u8fbc\u307f\u3092\u8d77\u3053\u3059\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u3053\u306e\u5272\u8fbc\u307f\u306f\u3001\u30d1\u30ef\u30fc\u30c0\u30a6\u30f3\u30b9\u30ea\u30fc\u30d7\u304b\u3089\u306e\u5fa9\u5e30\u8981\u56e0\u3068\u306a\u308b\u306e\u3067\u3001\u4eca\u56de\u306f\u305d\u306e\u3088\u3046\u306a\u4f7f\u3044\u65b9\u3092\u8a66\u3057\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u305f\u3002<\/p>\n<p>\u8abf\u3079\u305f\u304b\u304e\u308a\u3001ATtiny45\/85\u306e\u51fa\u8377\u6642\u306eFUSE\u8a2d\u5b9a\u3067\u306fWDTON\u30d3\u30c3\u30c8(FUSE\u30cf\u30a4\u30d0\u30a4\u30c8\u306e\u30d3\u30c3\u30c84)\u306f&#8221;1&#8243; (Unprogrammed)\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u30ea\u30bb\u30c3\u30c8\u6642\u306eWDT\u306f\u52d5\u4f5c\u7981\u6b62\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u5fc5\u8981\u306a\u3089\u3070\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e\u300c\u30bb\u30fc\u30d5\u30c6\u30a3\u30fc\u30ec\u30d9\u30eb1\u300d\u3068\u3044\u3046\u624b\u9806\u306b\u3057\u305f\u304c\u3063\u3066\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u306e\u30ea\u30bb\u30c3\u30c8\u52d5\u4f5c\u3092\u8a31\u53ef\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304c\u3001\u4eca\u56de\u306f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u3060\u3051\u3092\u4f7f\u3044\u3001\u30ea\u30bb\u30c3\u30c8\u3092\u4f34\u3046\u4f7f\u3044\u65b9\u306f\u3057\u306a\u3044\u3002\u305d\u306e\u305f\u3081\u3001\u7279\u5225\u306a\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u4f7f\u308f\u306a\u304f\u3066\u3082\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u3084\u5272\u8fbc\u307f\u8a31\u53ef\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<h2>WDT\u306e\u4f7f\u3044\u65b9<\/h2>\n<p>\u30b9\u30ea\u30fc\u30d7\u5fa9\u5e30\u7528\u306e\u30bf\u30a4\u30de\u30fc\u3068\u3057\u3066\u4f7f\u3046\u969b\u306b\u306f\u3001<strong><em>WDTCR ( Watchdog Timer Control Register )<\/em> <\/strong>\u306b\u5bfe\u3057\u3066\u3001\u5272\u8fbc\u307f\u8a31\u53ef\u3068WDT\u306e\u30d7\u30ea\u30b9\u30b1\u30fc\u30e9\u3092\u8a2d\u5b9a\u3057\u3066\u3084\u308c\u3070\u3088\u3044\u3002\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u304b\u3089\u95a2\u4fc2\u3059\u308b\u9805\u76ee\u3092\u629c\u304d\u51fa\u3059\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3002<\/p>\n<pre class=\"nums:false lang:default decode:true\">(MSB) WDIF WDIE WDP3 WDCE WDE WDP2 WDP1 WDP0(LSB)\r\n       |    |    |             |    |    +---\r\n       |    |    |             |    +-------- WDP[3:0] WDT\u30d7\u30ea\u30b9\u30b1\u30fc\u30e9\u8a2d\u5b9a\r\n       |    |    |             +-------------\u3000\u3000\u3000\u3000\u3000(\u8a2d\u5b9a\u5185\u5bb9\u306f\u5f8c\u8ff0)\r\n       |    |    +---------------------------\r\n       |    +--- Watchdog Timeout Interrupt Enable. 1\u306b\u3059\u308b\u3068\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u8a31\u53ef\u3002\r\n       +-------- Watchdog Timeout Interrupt Flag. \u3000\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u304c\u8d77\u304d\u308b\u30681\u306b\u306a\u308b\u3002<\/pre>\n<p>WDT\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u306e\u5272\u8fbc\u307f\u30d9\u30af\u30bf\u756a\u53f7\u306f13\u3067\u3001<span class=\"lang:default decode:true crayon-inline \"> ISR(WDT_vect) {}\u00a0<\/span>\u00a0\u306e\u3088\u3046\u306b\u5ba3\u8a00\u3057\u3066\u304a\u304f\u3002\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u304c\u8d77\u304d\u3066 ISR(WDT_vect) \u306b\u5b9f\u884c\u304c\u79fb\u308b\u3068WDIF\u306f\u30af\u30ea\u30a2\u3055\u308c\u308b\u3002<\/p>\n<p>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u3092\u4f7f\u3046\u305f\u3081\u306b\u3084\u308b\u3079\u304d\u3053\u3068\u306f\u3001WDP[3:0]\u306e4\u30d3\u30c3\u30c8\u306b\u5fc5\u8981\u306a\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u306b\u5c0e\u304f\u30d7\u30ea\u30b9\u30b1\u30fc\u30e9\u5024\u3092\u8a2d\u5b9a\u3057\u3001WDIE\u30921\u306b\u3059\u308b\u3002\u305d\u3057\u3066wdr()\u547d\u4ee4\u306b\u3088\u3063\u3066\u30ab\u30a6\u30f3\u30bf\u3092\u30af\u30ea\u30a2\u3059\u308c\u3070\u3001\u6240\u5b9a\u306e\u6642\u9593\u304c\u7d4c\u904e\u3059\u308c\u3070\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u304c\u767a\u751f\u3059\u308b\u3002<\/p>\n<h5>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u3068\u30d7\u30ea\u30b9\u30b1\u30fc\u30e9\u306e\u8a2d\u5b9a<\/h5>\n<p>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u6642\u9593\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b16msec\uff5e8.0\u79d2\u306e\u7bc4\u56f2\u306710\u901a\u308a\u306b\u8a2d\u5b9a\u53ef\u80fd\u306b\u306a\u3063\u3066\u3044\u308b(\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e<strong>Table 8-3. Watchdog Timer Prescale Select<\/strong> \u306b\u3088\u308b)\u3002<\/p>\n<table>\n<tbody>\n<tr>\n<th>WDP3<\/th>\n<th>WDP2<\/th>\n<th>WDP1<\/th>\n<th>WDP0<\/th>\n<th>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8<\/th>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>16msec<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>1<\/td>\n<td>32msec<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>0<\/td>\n<td>1<\/td>\n<td>0<\/td>\n<td>64msec<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>0<\/td>\n<td>1<\/td>\n<td>1<\/td>\n<td>0.125sec<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>1<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0.25sec<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>1<\/td>\n<td>0<\/td>\n<td>1<\/td>\n<td>0.5sec<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>1<\/td>\n<td>1<\/td>\n<td>0<\/td>\n<td>1.0sec<\/td>\n<\/tr>\n<tr>\n<td>0<\/td>\n<td>1<\/td>\n<td>1<\/td>\n<td>1<\/td>\n<td>2.0sec<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>4.0sec<\/td>\n<\/tr>\n<tr>\n<td>1<\/td>\n<td>0<\/td>\n<td>0<\/td>\n<td>1<\/td>\n<td>8.0sec<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306e\u8a18\u8ff0\u65b9\u6cd5\u304b\u3089\u3057\u3066\u3001\u3042\u307e\u308a\u6b63\u78ba\u3055\u3092\u671f\u5f85\u3057\u3066\u306f\u3044\u3051\u306a\u3044\u306e\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u8a2d\u5b9a\u3059\u308b\u969b\u306b\u306f\u3001<\/p>\n<pre class=\"nums:false lang:default decode:true\">WDTCR = _BV(WDIE) | _BV(WDP2) | _BV(WDP1);<\/pre>\n<p>\u306e\u3088\u3046\u306b\u3059\u308b\u3002\u3053\u306e\u4f8b\u3067\u306f1\u79d2\u3054\u3068\u306bWDT\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5272\u8fbc\u307f\u304c\u767a\u751f\u3059\u308b\u3002<\/p>\n<h2>\u30c6\u30b9\u30c8\u56de\u8def<\/h2>\n<p>Arduino PRO MINI ISP\u30dc\u30fc\u30c9\u306bATtiny\u3092\u88c5\u7740\u3057\u3066\u3001PB3\u306bLED\u3092\u63a5\u7d9a\u3002PB3\u30921\u3068\u3059\u308b\u3068\u70b9\u706f\u3057\u30010\u3067\u6d88\u706f\u3059\u308b\u3002<\/p>\n<figure id=\"attachment_7608\" aria-describedby=\"caption-attachment-7608\" style=\"width: 552px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/okiraku-camera.tokyo\/blog\/wp-content\/uploads\/2018\/07\/ATINY_WDT_LED1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-large wp-image-7608\" src=\"https:\/\/okiraku-camera.tokyo\/blog\/wp-content\/uploads\/2018\/07\/ATINY_WDT_LED1-552x345.png\" alt=\"\" width=\"552\" height=\"345\" \/><\/a><figcaption id=\"caption-attachment-7608\" class=\"wp-caption-text\">ATINY_WDT_LED1<\/figcaption><\/figure>\n<h2>\u30b9\u30b1\u30c3\u30c1<\/h2>\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b9\u30b1\u30c3\u30c1\u3092\u66f8\u3044\u3066\u307f\u305f\u3002<\/p>\n<pre class=\"lang:c++ decode:true\">#include &lt;avr\/wdt.h&gt;\r\n#include &lt;avr\/sleep.h&gt;\r\n\r\nconst uint8_t WDT_PRSCL_125 = (_BV(WDP1) | _BV(WDP0));\r\nconst uint8_t WDT_PRSCL_250 = _BV(WDP2);\r\nconst uint8_t WDT_PRSCL_500 = (_BV(WDP2) | _BV(WDP0));\r\nconst uint8_t WDT_PRSCL_1000 = (_BV(WDP2) |_BV(WDP1));\r\nconst uint8_t WDT_PRSCL_2000 = (_BV(WDP2) |_BV(WDP1) | _BV(WDP0));\r\n\r\nvoid start_wdt(int8_t prscl) {\r\n  cli();\r\n  WDTCR = _BV(WDIE) | prscl;\r\n  wdt_reset();  \/\/ == wdr\r\n  sei();\r\n}\r\n\r\nvoid setup() {\r\n  cli();\r\n  DDRB = _BV(3);  \/\/ LED\r\n  PORTB = 0;\r\n  ACSR |= 0x80;    \/\/ disable Analog Comparator.\r\n  ADCSRA &amp;= 0x7f;  \/\/ disable ADC\r\n  TIMSK = 0;  \/\/ disable Timer0\/1 overflow interrupt.\r\n  PRR = 15;\r\n  sei();\r\n}\r\n\r\nISR(WDT_vect) {}\r\n\r\nint8_t prcl_index = 0;\r\nconst uint8_t wdt_prcl[] = { WDT_PRSCL_125, WDT_PRSCL_250, WDT_PRSCL_500, WDT_PRSCL_1000, WDT_PRSCL_2000 };\r\n\r\nvoid loop() {\r\n  static int wdt_count = 0;\r\n  if (wdt_count == 0) {\r\n    start_wdt(wdt_prcl[prcl_index++]);\r\n    if (prcl_index &gt;= sizeof(wdt_prcl))\r\n      prcl_index = 0;\r\n  }\r\n  set_sleep_mode(SLEEP_MODE_PWR_DOWN);\r\n  sleep_enable();\r\n  sleep_cpu();\r\n  sleep_disable();\r\n  if (PINB &amp; _BV(3))\r\n    PORTB = 0;\r\n  else\r\n    PORTB = _BV(3);\r\n  wdt_count++;\r\n  if (wdt_count &gt; 10)\r\n    wdt_count = 0;\r\n}<\/pre>\n<p>\u3053\u306e\u30b9\u30b1\u30c3\u30c1\u306e\u610f\u56f3\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3002<\/p>\n<ul>\n<li>WDT\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u306b\u3088\u308a\u3001\u30d1\u30ef\u30fc\u30c0\u30a6\u30f3\u30b9\u30ea\u30fc\u30d7\u304b\u3089\u5fa9\u5e30\u3059\u308b\u3054\u3068\u306bLED\u306e\u70b9\u706f\uff0f\u6d88\u706f\u3092\u884c\u3046\u3002<\/li>\n<li>5\u56de\u70b9\u6ec5\u3059\u308b\u3054\u3068\u306b\u3001wdt_prcl[]\u306e\u5185\u5bb9\u306b\u3057\u305f\u304c\u3063\u3066\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5024\u3092\u5909\u66f4\u3002\u6700\u5f8c\u306e2\u79d2\u9593\u306b\u306a\u3063\u305f\u3089\u3001\u6700\u521d(125msec)\u306b\u623b\u3063\u3066\u7e70\u308a\u8fd4\u3059\u3002<\/li>\n<li>\u3082\u3057\u3082WDTCR\u304c\u66f4\u65b0\u3067\u304d\u306a\u3044\u306a\u3089\u3070\u3001\u30b9\u30ea\u30fc\u30d7\u304b\u3089\u5fa9\u5e30\u3057\u306a\u3044\u3060\u308d\u3046\u3002\u307e\u305f\u3001WDT\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3054\u3068\u306b\u30ea\u30bb\u30c3\u30c8\u304c\u304b\u304b\u3063\u3066\u3044\u308b\u3068\u3057\u305f\u3089\u3001prcl_index \u306f\u7dad\u6301\u3055\u308c\u306a\u3044\u306e\u3067\u70b9\u6ec5\u9593\u9694\u306f\u5909\u5316\u3057\u306a\u3044\u3060\u308d\u3046\u3002<\/li>\n<\/ul>\n<h5>\u30b9\u30b1\u30c3\u30c1\u5185\u5bb9\u306b\u3064\u3044\u3066<\/h5>\n<ul>\n<li><em>WDT_PRSCL_125 \uff5e\u00a0WDT_PRSCL_2000<\/em> \u307e\u3067\u306e\u30de\u30af\u30ed\u306f\u3001\u30d7\u30ea\u30b9\u30b1\u30fc\u30e9\u306e\u5404\u30d3\u30c3\u30c8\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u3063\u3066WDT\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5024\u3092\u8868\u73fe\u3057\u3066\u3044\u308b\u3002\u6b63\u76f4\u306a\u3068\u3053\u308d\u3001\u3082\u3046\u3061\u3087\u3063\u3068\u7d30\u304b\u304f\u8a2d\u5b9a\u3067\u304d\u305f\u65b9\u304c\u3046\u308c\u3057\u304b\u3063\u305f\u3002<\/li>\n<li>\u5370\u8c61\u3068\u3057\u3066\u306f10%\u7a0b\u5ea6\u304b\u305d\u308c\u4ee5\u4e0a\u306e\u8aa4\u5dee\u304c\u3042\u308b\u3088\u3046\u306a\u306e\u3067\u3001\u6b63\u78ba\u306a\u8a08\u6642\u306b\u306f\u5411\u304b\u306a\u3044\u3002<\/li>\n<li>\u30d1\u30ef\u30fc\u30c0\u30a6\u30f3\u30b9\u30ea\u30fc\u30d7\u304b\u3089\u306e\u5fa9\u5e30\u306e\u307f\u304c\u76ee\u7684\u306a\u306e\u3067\u3001<em>ISR(WDT_vect)<\/em> \u5185\u3067\u306e\u51e6\u7406\u306f\u306a\u3044\u3002<\/li>\n<li><em>wdt_reset()<\/em>\u00a0\u306f\u3001wdr\u547d\u4ee4\u3092\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u30de\u30af\u30ed\u3067\u3001avr\/wdt.h \u5185\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3002<\/li>\n<li>\u524d\u56de\u306e\u6295\u7a3f\u3067\u306f\u3001Arduino\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u30ea\u30f3\u30af\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u304c\u3001\u4eca\u56de\u306f\u7279\u306b\u6c17\u306b\u3059\u308b\u5fc5\u8981\u3082\u306a\u3044(TC0\u306e\u5272\u8fbc\u307f\u3092\u4f7f\u308f\u306a\u3044)\u306e\u3067\u3001main() \u306f\u8a18\u8ff0\u3057\u306a\u304b\u3063\u305f\u3002<\/li>\n<li>ATtiny\u3092\u4f7f\u3046\u305f\u3081\u306e\u8981\u7d20\u306f\u3060\u3044\u305f\u3044\u78ba\u8a8d\u3067\u304d\u305f\u306e\u3067\u3001\u305d\u308d\u305d\u308d\u30ab\u30bf\u30c1\u306e\u3042\u308b\u3082\u306e\u3092\u4f5c\u308b\u4e88\u5b9a\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6982\u8981 ATtiny85\u3067\u3001TC(\u30bf\u30a4\u30de\u30fc\u30ab\u30a6\u30f3\u30c8)\u30e6\u30cb\u30c3\u30c8\u306e\u30bf\u30a4\u30de\u30fc\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5272\u8fbc\u307f\u306e\u4ee3\u308f\u308a\u306b\u3001WDT(\u30a6\u30a9\u30c3\u30c1\u30c9\u30c3\u30b0\u30bf\u30a4\u30de\u30fc)\u5272\u8fbc\u307f\u3092\u4f7f\u3063\u3066\u307f\u308b\u3002WDT\u5272\u8fbc\u307f\u3092\u4f7f\u3048\u3070\u3001\u30a2\u30a4\u30c9\u30eb\u30b9\u30ea\u30fc\u30d7\u306b\u6bd4\u3079\u3066\u6d88\u8cbb\u96fb\u6d41\u304c\u6975\u3081\u3066\u5c0f\u3055\u3044 &hellip; <a href=\"https:\/\/okiraku-camera.tokyo\/blog\/?p=7602\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">ATtiny \u30a6\u30a9\u30c3\u30c1\u30c9\u30c3\u30b0\u30bf\u30a4\u30de\u5272\u8fbc\u307f\u3067LED\u30c1\u30ab\u30c1\u30ab<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[69],"tags":[65,95],"class_list":["post-7602","post","type-post","status-publish","format-standard","hentry","category-programming","tag-arduino","tag-attiny"],"_links":{"self":[{"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7602","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7602"}],"version-history":[{"count":0,"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7602\/revisions"}],"wp:attachment":[{"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7602"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7602"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/okiraku-camera.tokyo\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7602"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}