{"id":1367,"date":"2024-03-22T13:26:12","date_gmt":"2024-03-22T04:26:12","guid":{"rendered":"https:\/\/avancesys.co.jp\/laboratory\/?post_type=article&p=1367"},"modified":"2024-03-22T13:26:12","modified_gmt":"2024-03-22T04:26:12","slug":"%e3%83%a9%e3%82%ba%e3%83%91%e3%82%a4%e3%81%8b%e3%82%89spi%e3%83%9d%e3%83%bc%e3%83%88%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6can%e9%80%81%e4%bf%a1%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"article","link":"https:\/\/www.avancesys.co.jp\/laboratory\/article\/%e3%83%a9%e3%82%ba%e3%83%91%e3%82%a4%e3%81%8b%e3%82%89spi%e3%83%9d%e3%83%bc%e3%83%88%e3%82%92%e4%bd%bf%e3%81%a3%e3%81%a6can%e9%80%81%e4%bf%a1%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u30e9\u30ba\u30d1\u30a4\u304b\u3089SPI\u30dd\u30fc\u30c8\u3092\u4f7f\u3063\u3066CAN\u9001\u4fe1\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"\n

\u3053\u3093\u306b\u3061\u306f\u3001MY\u3067\u3059\u3002<\/p>\n\n\n\n

\u30e9\u30ba\u30d1\u30a4\u3082\u3044\u308d\u3093\u306a\u3053\u3068\u304c\u3067\u304d\u3066\u4fbf\u5229\u3067\u3059\u306d\u3002
\u591a\u304f\u306e\u6a5f\u80fd\u3092\u4ed8\u3051\u305f\u3044\u3068\u3053\u308d\u3067\u3059\u304c\u3001\u6a5f\u5668\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u3001
\u300c\u30dd\u30fc\u30c8\u304c\u8db3\u308a\u306a\u3044\u300d
\u300c\u305d\u3082\u305d\u3082\u30dd\u30fc\u30c8\u304c\u306a\u3044\u300d
\u3068\u3044\u3046\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3088\u306d\uff1f<\/p>\n\n\n\n

\u524d\u56de\u3001\u30bd\u30e9\u3055\u3093\u304cI2C\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3066\u306eCAN\u901a\u4fe1<\/a>\u3092\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3057\u305f\u306e\u3067
\u79c1\u304b\u3089\u306fSPI\u30dd\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3066\u306eCAN\u901a\u4fe1\u3092\u7d39\u4ecb\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u69cb\u6210<\/p><\/blockquote><\/figure>\n\n\n\n

\u25a0\u6a5f\u5668\u69cb\u6210<\/p>\n\n\n\n

\u6a5f\u5668<\/td>\u30e9\u30ba\u30d1\u30a43B+<\/td>\u203b\u30e9\u30ba\u30d1\u30a44B\u306b\u306f\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u305b\u3093<\/td><\/tr>
\u5909\u63db\u57fa\u677f\u3000\u3000<\/td>SPI CAN \u5909\u63db\u30dc\u30fc\u30c9<\/td>https:\/\/www.amazon.co.jp\/s?k=MCP2515<\/a><\/td><\/tr>
\u8a00\u8a9e<\/td>C\u8a00\u8a9e<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

\u25a0CAN\u69cb\u6210<\/p>\n\n\n\n

CAN\u901a\u4fe1\u901f\u5ea6<\/td>500kbps<\/td><\/td><\/tr>
CAN\u30a2\u30c0\u30d7\u30bf<\/td>Kvaser Leaf Light v2\u3000\u3000\u3000\u3000<\/td><\/td><\/tr>
\u78ba\u8a8d\u7528PC\uff08OS\uff09\u3000\u3000\u3000<\/td>Windows10 64bit<\/td><\/td><\/tr>
\u78ba\u8a8d\u7528\u30c4\u30fc\u30eb<\/td>Candy<\/td>\u81ea\u793e\u958b\u767a\u306eCAN\u30a2\u30d7\u30ea\u3067\u3059\u3002
\u203b\u3042\u3068\u304c\u304d\u306b\u3001\u7d39\u4ecb\u30da\u30fc\u30b8\u306e\u30ea\u30f3\u30af\u3092\u8a18\u8f09\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/div>\n\n\n\n

\u69cb\u6210\u56f3<\/p><\/blockquote><\/figure>\n\n\n\n

\u74b0\u5883\u306e\u69cb\u6210\u3092\u4e0b\u8a18\u306b\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n
<\/div>\n\n\n\n

\u5909\u63db\u57fa\u677f\u306e\u6539\u9020<\/p><\/blockquote><\/figure>\n\n\n\n

\u30e9\u30ba\u30d1\u30a4\u306eSPI\u306f3.3V\u306a\u306e\u3067\u3001MCP2515\u30823.3V\u306b\u3066\u99c6\u52d5\u3055\u305b\u307e\u3059\u3002
\u305f\u3060\u3001Kvaser\u306eCAN\u901a\u4fe1\u304c5V\u306e\u305f\u3081\u3001CAN\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30925V\u3067\u99c6\u52d5\u3059\u308b\u3088\u3046\u306b\u57fa\u677f\u3092\u6539\u9020\u3057\u307e\u3059\u3002
\u5909\u63db\u57fa\u677f\u80cc\u9762\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u524a\u308a\u3001CAN\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u306b3.3V\u304c\u7d66\u96fb\u3055\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u4e0a\u306e\u69cb\u6210\u56f3\u306b\u8a18\u3057\u305f\u30aa\u30ec\u30f3\u30b8\u306e\u7dda\u306e\u3088\u3046\u306bCAN\u30c8\u30e9\u30f3\u30b7\u30fc\u30d0\u30785V\u3092\u7d66\u96fb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
<\/div>\n\n\n\n

\u30e9\u30ba\u30d1\u30a4\u306e\u8a2d\u5b9a<\/p><\/blockquote><\/figure>\n\n\n\n

SPI CAN\u5909\u63db\u30dc\u30fc\u30c9\uff08MCP2515\uff09\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b
\/boot\/config.txt \u306b\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

# MCP2515 CAN module
dtparm=spi=on
dtoverlay=mcp2515-can0,oscillator=8000000,interrupt=25
dtoverlay=spi-dcm2835<\/p>\n\n\n\n

\u300coscillator=8000000\u300d\u3067SPI CAN\u5909\u63db\u30dc\u30fc\u30c9\u306e\u767a\u632f\u5468\u6ce2\u6570\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002
\u300cinterrupt=25\u300d\u3067INT\u306b\u4f7f\u7528\u3059\u308bGPIO\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

config.txt\u3092\u5909\u66f4\u3057\u305f\u3089\u3001\u30e9\u30ba\u30d1\u30a4\u3092\u518d\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n

<\/div>\n\n\n\n

\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/p><\/blockquote><\/figure>\n\n\n\n

\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u8a18\u8f09\u3057\u307e\u3059\u3002 <\/p>\n\n\n\n

linux\u306eCAN\u30af\u30e9\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001SPI\u30dd\u30fc\u30c8\u304b\u3089\u9001\u4fe1\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

#include <stdio.h>\n#include <string.h>\n#include <stdlib.h>\n#include <unistd.h>\n#include <errno.h>\n#include <sys\/socket.h>\n#include <sys\/ioctl.h>\n#include <net\/if.h>\n#include <linux\/can.h>\n#include <linux\/can\/raw.h>\n\n#define CAN_NAME "can0"\n\n\/*** \u30e1\u30a4\u30f3 ***\/\nvoid main(void)\n{\n  int32_t sock;\n  struct ifreq ifr;\n  int32_t loopback = 1;\n  \n  struct sockaddr_can addr;\n  struct can_frame frame;\n  \n  \/\/ \u30bd\u30b1\u30c3\u30c8 OPEN\n  sock = socket(PF_CAN, SOCK_RAW, CAN_RAW);\n  \n  strncpy(ifr.ifr_name, CAN_NAME, sizeof(ifr.ifr_name));\n\n  ifr.ifr_ifindex = if_nametoindex(ifr.ifr_name);\n\n  addr.can_family = AF_CAN;\n  addr.can_ifindex = ifr.ifr_ifindex;\n  loopback = 0; \n  setsockopt(sock, SOL_CAN_RAW, CAN_RAW_LOOPBACK, &loopback, sizeof(loopback));\n\n  bind(sock, (struct sockaddr *)&addr, sizeof(addr));  \n  \n  \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf\u306e\u4f5c\u6210\n  frame.can_id = 0x80; \/\/ CANID\n  frame.can_dlc = 8;   \/\/ CAN\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\n  frame.data[0] = 0x11; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf1\n  frame.data[1] = 0x22; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf2\n  frame.data[2] = 0x33; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf3\n  frame.data[3] = 0x44; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf4\n  frame.data[4] = 0x55; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf5\n  frame.data[5] = 0x66; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf6\n  frame.data[6] = 0x77; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf7\n  frame.data[7] = 0x88; \/\/ \u9001\u4fe1\u30c7\u30fc\u30bf8\n\n  \/\/ \u30c7\u30fc\u30bf\u9001\u4fe1\n write(sock, &frame, CAN_MTU);\n\n  \/\/ \u30bd\u30b1\u30c3\u30c8 CLOSE\n  close(sock);\n}\n<\/code><\/pre><\/div>\n\n\n\n
<\/div>\n\n\n\n
\u901a\u4fe1\u901f\u5ea6\u306e\u8a2d\u5b9a<\/p><\/blockquote><\/figure>\n\n\n\n
CAN\u901a\u4fe1\u306e\u30d3\u30c3\u30c8\u30ec\u30fc\u30c8\u3092500kbps\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
$sudo ip link set can0 down
$sudo ip link set can0 type can bitrate 500000
$sudo ip link set can0 up<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u30b3\u30f3\u30d1\u30a4\u30eb\u3068\u52d5\u4f5c\u78ba\u8a8d<\/p><\/blockquote><\/figure>\n\n\n\n
\u30b3\u30f3\u30d1\u30a4\u30eb\u3057\u3001\u5b9f\u884c\u30d5\u30a1\u30a4\u30eb\u3092\u8d77\u52d5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
$gcc -o spi_test spi_test.c 
$.\/spi_test<\/p>\n\n\n\n
<\/div>\n\n\n\n
\u5b9f\u884c\u7d50\u679c<\/p><\/blockquote><\/figure>\n\n\n\n
CAN\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u30c4\u30fc\u30eb\u3067\u5024\u3092\u78ba\u8a8d\u3057\u3001 
\u9001\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u304c\u53d6\u5f97\u3067\u304d\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
<\/div>\n\n\n\n
\u3042\u3068\u304c\u304d<\/p><\/blockquote><\/figure>\n\n\n\n
\u30e9\u30ba\u30d1\u30a4\u304b\u3089SPI\u30dd\u30fc\u30c8\u3092\u4f7f\u3063\u3066CAN\u901a\u4fe1\u306e\u78ba\u8a8d\u304c\u3067\u304d\u307e\u3057\u305f\u3002
\u4eca\u56de\u4f7f\u7528\u3057\u305f\u5909\u63db\u57fa\u677f\u4ee5\u5916\u306b\u3082\u4fbf\u5229\u306a\u5909\u63db\u57fa\u677f\u306f\u3044\u308d\u3044\u308d\u8ca9\u58f2\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\u8208\u5473\u304c\u3042\u308b\u65b9\u306f\u3001\u63a2\u3057\u3066\u307f\u308b\u306e\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002 <\/p>\n\n\n\n
\u78ba\u8a8d\u306b\u4f7f\u7528\u3057\u305f\u81ea\u793e\u958b\u767a\u30c4\u30fc\u30eb\u306eCandy\u306f\u3001\u4ee5\u4e0b\u3067\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u7b2c1\u56de Candy \u301c \u30e1\u30c3\u30bb\u30fc\u30b8\u9001\u53d7\u4fe1 \u301c<\/td>https:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac1%e5%9b%9e-candy-%e3%80%9c-%e3%83%a1%e3%83%83%e3%82%bb%e3%83%bc%e3%82%b8%e9%80%81%e5%8f%97%e4%bf%a1-%e3%80%9c\/<\/a><\/td><\/tr>
\u7b2c2\u56de Candy \u301c \u901a\u4fe1\u8a2d\u5b9a \u301c<\/td>https:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac2%e5%9b%9e-candy-%e3%80%9c-%e9%80%9a%e4%bf%a1%e8%a8%ad%e5%ae%9a-%e3%80%9c\/<\/a><\/td><\/tr>
\u7b2c3\u56de Candy \u301c \u30ed\u30b0\u8a18\u9332 \u301c<\/td>https:\/\/avancesys.co.jp\/laboratory\/article\/%e7%ac%ac3%e5%9b%9e-candy-%e3%80%9c-%e3%83%ad%e3%82%b0%e8%a8%98%e9%8c%b2-%e3%80%9c\/<\/a><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/div>\n","protected":false},"author":32,"featured_media":1332,"template":"","lc":[12],"lt":[22,14,20],"class_list":["post-1367","article","type-article","status-publish","has-post-thumbnail","hentry","lc-introduction","lt-can-communication","lt-raspi","lt-in-vehicle"],"_links":{"self":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/article\/1367","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/article"}],"about":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/types\/article"}],"author":[{"embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/users\/32"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/media\/1332"}],"wp:attachment":[{"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/media?parent=1367"}],"wp:term":[{"taxonomy":"lc","embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/lc?post=1367"},{"taxonomy":"lt","embeddable":true,"href":"https:\/\/www.avancesys.co.jp\/laboratory\/wp-json\/wp\/v2\/lt?post=1367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}