{"id":880,"date":"2016-03-10T00:34:38","date_gmt":"2016-03-09T16:34:38","guid":{"rendered":"http:\/\/ukonline2000.com\/?p=880"},"modified":"2016-03-29T20:57:33","modified_gmt":"2016-03-29T12:57:33","slug":"%e6%a0%91%e8%8e%93%e6%b4%be3%e4%b8%b2%e5%8f%a3uart%e4%bd%bf%e7%94%a8%e9%97%ae%e9%a2%98%e7%9a%84%e8%a7%a3%e5%86%b3%e6%96%b9%e6%b3%95%ef%bc%81%ef%bc%81%ef%bc%81%ef%bc%81","status":"publish","type":"post","link":"http:\/\/ukonline2000.com\/?p=880","title":{"rendered":"\u6811\u8393\u6d3e3\u4e32\u53e3(UART)\u4f7f\u7528\u95ee\u9898\u7684\u89e3\u51b3\u65b9\u6cd5\uff01\uff01\uff01\uff01"},"content":{"rendered":"

\"\u6811\u8393\u6d3e3B\u9ad8\u6e05\u4fef\u89c6\u56fe\"<\/a><\/p>\n

\u6700\u65b064\u4f4d\u6811\u8393\u6d3e3\u5df2\u7ecf\u53d1\u5e03\u5feb\u4e24\u5468\u4e86\uff0c\u73a9\u5bb6\u4eec\u9646\u9646\u7eed\u7eed\u4e5f\u5f00\u59cb\u4f7f\u7528\u4e0a\u6811\u8393\u6d3e3\u4e86\uff0c\u968f\u7740\u73a9\u5bb6\u7684\u589e\u591a\uff0c\u867d\u7136\u62e5\u6709\u5f3a\u5927\u786c\u4ef6\u914d\u7f6e\u7684\u6811\u8393\u6d3e3\u4e5f\u51fa\u73b0\u4e86\u5404\u79cd\u5404\u6837\u7684BUG\uff0c\u5b98\u65b9\u4e5f\u5728\u5bf9\u8fd9\u4e9bBUG\u8fdb\u884c\u4fee\u590d\u4e2d\u3002\u4eca\u5929\u8981\u8bf4\u8bf4\u6811\u8393\u6d3e3\u7684UART\u4e32\u53e3\u7684\u4f7f\u7528\u95ee\u9898\uff0c\u8be5\u4e32\u53e3\u95ee\u9898\u7684\u5b98\u65b9\u53cd\u9988\u53ca\u56de\u590d\u8bf7\u53c2\u8003\u8fd9\u4e24\u7bc7\u5b98\u65b9\u535a\u6587\u201chttps:\/\/www.raspberrypi.org\/forums\/viewtopic.php?f=63&t=137932<\/a>\u201d\u548c\u201chttps:\/\/www.raspberrypi.org\/forums\/viewtopic.php?f=107&t=138223<\/a>\u201d<\/p>\n

\u6839\u636e\u5b98\u65b9\u7684\u53cd\u9988\u548c\u56de\u590d\uff0c\u6211\u4eec\u4e86\u89e3\u5230\u6811\u8393\u6d3e3\u4e0a\u7528\u6237\u76ee\u524d\u65e0\u6cd5\u6b63\u5e38\u662f\u4f7f\u7528GPIO\u4e2d\u7684UART\u4e32\u53e3(GPIO14&GPIO15),\u4e5f\u5c31\u662f\u8bf4\u7528\u6237\u65e0\u8bba\u662f\u60f3\u7528\u4e32\u53e3\u6765\u8c03\u8bd5\u6811\u8393\u6d3e\uff0c\u8fd8\u662f\u60f3\u7528GPIO\u4e2d\u7684\u4e32\u53e3\u6765\u8fde\u63a5GPS,\u84dd\u7259\uff0cXBEE\u7b49\u7b49\u4e32\u53e3\u5916\u8bbe\u76ee\u524d\u90fd\u662f\u6709\u95ee\u9898\u7684\u3002<\/p>\n

\u539f\u56e0\u662f\u6811\u8393\u6d3eCPU\u5185\u90e8\u6709\u4e24\u4e2a\u4e32\u53e3\uff0c\u4e00\u4e2a\u662f\u786c\u4ef6\u4e32\u53e3<\/span>(\u5b98\u65b9\u79f0\u4e3aPL011 UART<\/span>)\uff0c\u4e00\u4e2a\u662f\u8ff7\u4f60\u4e32\u53e3<\/span>(\u5b98\u65b9\u6210\u4e3amini-uart<\/span>)\u3002\u5728\u6811\u8393\u6d3e2B\/B+\u8fd9\u4e9b\u8001\u7248\u6811\u8393\u6d3e\u4e0a\uff0c\u5b98\u65b9\u8bbe\u8ba1\u65f6\u90fd\u662f\u5c06\u201c\u786c\u4ef6\u4e32\u53e3<\/span>\u201d\u5206\u914d\u7ed9GPIO\u4e2d\u7684UART(GPIO14&GPIO15)\uff0c\u56e0\u6b64\u53ef\u4ee5\u72ec\u7acb\u8c03\u6574\u4e32\u53e3\u7684\u901f\u7387\u548c\u6a21\u5f0f\u3002\u800c\u6811\u8393\u6d3e3\u7684\u8bbe\u8ba1\u4e0a\uff0c\u5b98\u65b9\u5728\u8bbe\u8ba1\u65f6\u5c06\u786c\u4ef6\u4e32\u53e3\u5206\u914d\u7ed9\u4e86\u65b0\u589e\u7684\u84dd\u7259\u6a21\u5757\u4e0a\uff0c\u800c\u5c06\u4e00\u4e2a\u6ca1\u6709\u65f6\u949f\u6e90\uff0c\u5fc5\u987b\u7531\u5185\u6838\u63d0\u4f9b\u65f6\u949f\u53c2\u8003\u6e90\u7684\u201c\u8ff7\u4f60\u4e32\u53e3<\/span>\u201d\u5206\u914d\u7ed9\u4e86GPIO\u7684\u4e32\u53e3\uff0c\u8fd9\u6837\u4ee5\u6765\u7531\u4e8e\u5185\u6838\u7684\u9891\u7387\u672c\u8eab\u662f\u53d8\u5316\u7684\uff0c\u5c31\u4f1a\u5bfc\u81f4\u201c\u8ff7\u4f60\u4e32\u53e3<\/span>\u201d\u7684\u901f\u7387\u4e0d\u7a33\u5b9a\uff0c\u8fd9\u6837\u5c31\u51fa\u73b0\u4e86\u65e0\u6cd5\u6b63\u5e38\u4f7f\u7528\u7684\u60c5\u51b5\u3002<\/p>\n

\u76ee\u524d\u89e3\u51b3\u65b9\u6cd5\u5c31\u662f\uff0c\u5173\u95ed\u84dd\u7259\u5bf9\u786c\u4ef6\u4e32\u53e3<\/span>\u7684\u4f7f\u7528\uff0c\u5c06\u786c\u4ef6\u4e32\u53e3\u91cd\u65b0\u6062\u590d\u7ed9GPIO\u7684\u4e32\u53e3\u4f7f\u7528\uff0c\u4e5f\u5c31\u610f\u5473\u7740\u6811\u8393\u6d3e3\u7684\u677f\u8f7d\u84dd\u7259<\/span>\u548c\u4e32\u53e3<\/span>\uff0c\u73b0\u5728\u6210\u4e86\u9c7c\u548c\u718a\u638c\uff0c\u4e24\u8005\u65e0\u6cd5\u517c\u5f97\u3002<\/p>\n

\u4e0b\u9762\u6211\u5c31\u8bb2\u8bb2\u5982\u4f55\u6062\u590d\u786c\u4ef6\u4e32\u53e3\u7684\u65b9\u6cd5<\/strong><\/span>\uff1a<\/p>\n

1.\u4e0b\u8f7dpi3-miniuart-bt-overlay<\/a>\u6587\u4ef6\uff0c\u89e3\u538b\u51fapi3-miniuart-bt-overlay.dtb\u6587\u4ef6\uff0c\u5e76\u5c06dtb\u6587\u4ef6\u62f7\u8d1d\u5230\/boot\/overlays\/\u76ee\u5f55\u4e0b<\/p>\n

2.\u7f16\u8f91\/boot\u76ee\u5f55\u4e0b\u7684config.txt\u6587\u4ef6<\/p>\n

sudo nano \/boot\/config.txt<\/pre>\n
\u6dfb\u52a0\u4e0b\u9762\u4e24\u884c:<\/p>\n
dtoverlay=pi3-miniuart-bt-overlay<\/pre>\n
force_turbo=1<\/pre>\n
\"QQ\u56fe\u724720160310002624\"<\/a><\/p>\n
3.\u7f16\u8f91\/boot\u76ee\u5f55\u4e0b\u7684cmdline.txt\u6587\u4ef6<\/p>\n
sudo nano \/boot\/cmdline.txt<\/pre>\n
\u53c2\u8003\u4e0b\u9762\u5185\u5bb9\u4fee\u6539:<\/p>\n
dwc_otg.lpm_enable=0 console=serial1,115200\u00a0 console=tty1 root=\/dev\/mmcblk0p2  kgdboc=serial1,115200 rootfstype=ext4 elevator=deadline fsck.repair=yes  rootwait<\/pre>\n
\u4fdd\u5b58\u9000\u51fa<\/p>\n
\u5173\u95ed\u677f\u8f7d\u84dd\u7259\u7684\u65b9\u6cd5\uff1a<\/strong><\/span><\/p>\n
1.SSH\u767b\u5f55\u6811\u8393\u6d3e3\u540e\uff0c\u8f93\u5165\u4e0b\u9762\u547d\u4ee4\u5173\u95edhciuart\u4f7f\u7528uart0.<\/p>\n
sudo systemctl disable hciuart<\/pre>\n
2.\u7f16\u8f91\/lib\/systemd\/system\/hciuart.server \u5c06 \u201cttyAMA0\u201d\u4fee\u6539\u4e3a\u201cttyS0\u201d<\/p>\n
sudo nano \/lib\/systemd\/system\/hciuart.service<\/pre>\n
\u5c06 \u201cttyAMA0\u201d\u4fee\u6539\u4e3a\u201cttyS0\u201d<\/p>\n
\"QQ\u56fe\u724720160310003124\"<\/a><\/p>\n
\u4fdd\u5b58\u9000\u51fa<\/p>\n
3.\u66f4\u65b0\u5e76\u91cd\u542f<\/p>\n
sudo apt-get update<\/pre>\n
sudo apt-get upgrade<\/pre>\n
sudo reboot<\/pre>\n
 <\/p>\n
 <\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
\u6700\u65b064\u4f4d\u6811\u8393\u6d3e3\u5df2\u7ecf\u53d1\u5e03\u5feb\u4e24\u5468\u4e86\uff0c\u73a9\u5bb6\u4eec\u9646\u9646\u7eed\u7eed\u4e5f\u5f00\u59cb\u4f7f\u7528\u4e0a\u6811\u8393\u6d3e3\u4e86\uff0c\u968f\u7740\u73a9 … \u7ee7\u7eed\u9605\u8bfb →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-880","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi"],"_links":{"self":[{"href":"http:\/\/ukonline2000.com\/index.php?rest_route=\/wp\/v2\/posts\/880","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/ukonline2000.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ukonline2000.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ukonline2000.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/ukonline2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=880"}],"version-history":[{"count":2,"href":"http:\/\/ukonline2000.com\/index.php?rest_route=\/wp\/v2\/posts\/880\/revisions"}],"predecessor-version":[{"id":927,"href":"http:\/\/ukonline2000.com\/index.php?rest_route=\/wp\/v2\/posts\/880\/revisions\/927"}],"wp:attachment":[{"href":"http:\/\/ukonline2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=880"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ukonline2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=880"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ukonline2000.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=880"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}