https:\/\/blog.csdn.net\/bother3000\/article\/details\/149432555?spm=1001.2014.3001.5502<\/p>\n
FPV \u65e0\u4eba\u673a\u7684 OSD \u7cfb\u7edf\u901a\u5e38\u4f1a\u663e\u793a\u4ee5\u4e0b\u6838\u5fc3\u98de\u884c\u6570\u636e\uff0c\u6309\u7167\u91cd\u8981\u6027\u548c\u663e\u793a\u4f18\u5148\u7ea7\u6392\u5e8f\uff1a<\/p>\n
\u7535\u6c60\u4fe1\u606f\uff1a
\n\u7535\u6c60\u7535\u538b\uff08\u5982 “11.8V”\uff09
\n\u5269\u4f59\u7535\u91cf\u767e\u5206\u6bd4\uff08\u5982 “75%”\uff09
\n\u7535\u6c60\u56fe\u6807\uff08\u81ea\u5b9a\u4e49\u5b57\u7b26\uff09
\n\u4f4e\u7535\u91cf\u8b66\u544a\uff08\u95ea\u70c1\u663e\u793a\uff09<\/p>\n
\u59ff\u6001\u4fe1\u606f\uff1a
\n\u6a2a\u6eda\u89d2\uff08Roll\uff09
\n\u4fef\u4ef0\u89d2\uff08Pitch\uff09
\n\u59ff\u6001\u6307\u793a\u5668\uff08\u5730\u5e73\u7ebf\u6216\u4eba\u5de5\u5730\u5e73\u7ebf\uff09<\/p>\n
\u822a\u5411\u4fe1\u606f\uff1a
\n\u7f57\u76d8\u822a\u5411\uff08\u5982 “045\u00b0”\uff09
\n\u822a\u70b9\u4fe1\u606f\uff08\u5982 “WP1″\uff09
\n\u8fd4\u822a\u65b9\u5411\u6307\u793a<\/p>\n
\u9ad8\u5ea6\u4fe1\u606f\uff1a
\n\u76f8\u5bf9\u9ad8\u5ea6\uff08\u5982 “+15.2m”\uff09
\n\u7edd\u5bf9\u9ad8\u5ea6\uff08\u5982 “128m ASL”\uff09
\n\u9ad8\u5ea6\u53d8\u5316\u7387\uff08\u5982 “+2.3m\/s”\uff09<\/p>\n
\u901f\u5ea6\u4fe1\u606f\uff1a
\n\u5730\u901f\uff08GPS \u901f\u5ea6\uff09
\n\u7a7a\u901f\uff08\u5982\u679c\u6709\u7a7a\u6c14\u901f\u5ea6\u4f20\u611f\u5668\uff09
\n\u6700\u5927\u901f\u5ea6\u8bb0\u5f55<\/p>\n
\u98de\u884c\u6a21\u5f0f\uff1a
\n\u5982 “\u624b\u52a8”\u3001”\u81ea\u7a33”\u3001”GPS \u5b9a\u70b9”
\n\u98de\u884c\u6a21\u5f0f\u56fe\u6807<\/p>\n
\u8b66\u62a5\u4fe1\u606f\uff1a
\n\u4f4e\u7535\u91cf\u8b66\u62a5
\n\u4fe1\u53f7\u4e22\u5931\u8b66\u62a5
\n\u5931\u63a7\u4fdd\u62a4\u6fc0\u6d3b
\n\u6e29\u5ea6\u8fc7\u9ad8\u8b66\u62a5<\/p>\n
AT7456E \u662f\u4e00\u6b3e\u4e13\u4e3a\u65e0\u4eba\u673a\u548c FPV \u7cfb\u7edf\u8bbe\u8ba1\u7684 OSD (On-Screen Display) \u82af\u7247\uff0c\u7531 Atmel \u516c\u53f8\u751f\u4ea7\u3002\u5b83\u80fd\u591f\u5728\u6a21\u62df\u89c6\u9891\u4fe1\u53f7\u4e0a\u53e0\u52a0\u5404\u79cd\u5b57\u7b26\u3001\u56fe\u5f62\u548c\u6570\u636e\uff0c\u4e3a\u98de\u884c\u5458\u63d0\u4f9b\u5173\u952e\u98de\u884c\u4fe1\u606f\u3002<\/p>\n
\u4e3b\u8981\u7279\u6027\uff1a
\n\u652f\u6301 NTSC\/PAL \u4e24\u79cd\u89c6\u9891\u5236\u5f0f
\n128\u00d764 \u50cf\u7d20\u7684\u5b57\u7b26\u663e\u793a\u533a\u57df
\n\u53ef\u663e\u793a 256 \u79cd\u4e0d\u540c\u5b57\u7b26
\n\u652f\u6301 8 \u7ea7\u4eae\u5ea6\u8c03\u8282
\n\u5185\u7f6e 256 \u5b57\u8282\u7684\u7528\u6237 RAM
\nI\u00b2C \u63a5\u53e3\u901a\u4fe1 (400kHz \u9ad8\u901f\u6a21\u5f0f)
\n\u5de5\u4f5c\u7535\u538b\u8303\u56f4\uff1a2.7V-5.5V
\n1.2 \u5185\u90e8\u7ed3\u6784\u4e0e\u529f\u80fd\u6a21\u5757
\nAT7456E \u5185\u90e8\u5305\u542b\u4ee5\u4e0b\u6838\u5fc3\u6a21\u5757\uff1a<\/p>\n
\u89c6\u9891\u5904\u7406\u5355\u5143\uff1a
\n\u89c6\u9891\u4fe1\u53f7\u68c0\u6d4b\u4e0e\u540c\u6b65
\n\u4eae\u5ea6\u3001\u5bf9\u6bd4\u5ea6\u8c03\u8282
\n\u89c6\u9891\u5236\u5f0f\u81ea\u52a8\u8bc6\u522b<\/p>\n
\u5b57\u7b26\u751f\u6210\u5355\u5143\uff1a
\n\u5185\u7f6e 128 \u4e2a\u6807\u51c6 ASCII \u5b57\u7b26
\n\u652f\u6301\u81ea\u5b9a\u4e49\u5b57\u7b26\u751f\u6210
\n\u5b57\u7b26\u4f4d\u7f6e\u4e0e\u5927\u5c0f\u63a7\u5236<\/p>\n
I\u00b2C \u63a5\u53e3\u5355\u5143\uff1a
\n\u4ece\u8bbe\u5907\u5730\u5740 0x68
\n\u652f\u6301\u5bc4\u5b58\u5668\u8bfb\u5199\u64cd\u4f5c
\n\u6570\u636e\u4f20\u8f93\u901f\u7387\u6700\u9ad8 400kHz<\/p>\n
\u5185\u5b58\u7ba1\u7406\u5355\u5143\uff1a
\n\u5b57\u7b26\u663e\u793a RAM (128\u00d78 \u5b57\u8282)
\n\u7528\u6237\u6570\u636e RAM (256 \u5b57\u8282)
\n\u5b57\u7b26\u5b9a\u4e49 RAM (\u53ef\u5b58\u50a8 8 \u4e2a\u81ea\u5b9a\u4e49\u5b57\u7b26)
\n2. OSD \u56fe\u50cf\u53e0\u52a0\u539f\u7406\u4e0e\u6807\u51c6
\n2.1 \u89c6\u9891\u4fe1\u53f7\u4e0e\u540c\u6b65\u673a\u5236
\nAT7456E \u652f\u6301\u4e24\u79cd\u4e3b\u8981\u89c6\u9891\u5236\u5f0f\uff1a
\nNTSC \u5236\u5f0f\uff1a
\n\u5e27\u9891\uff1a29.97fps
\n\u884c\u9891\uff1a15.734kHz
\n\u6709\u6548\u50cf\u7d20\uff1a720\u00d7480
\n\u573a\u540c\u6b65\u4fe1\u53f7\uff1aV-Sync
\n\u884c\u540c\u6b65\u4fe1\u53f7\uff1aH-Sync
\nPAL \u5236\u5f0f\uff1a<\/p>\n
\u5e27\u9891\uff1a25fps
\n\u884c\u9891\uff1a15.625kHz
\n\u6709\u6548\u50cf\u7d20\uff1a720\u00d7576
\n\u573a\u540c\u6b65\u4fe1\u53f7\uff1aV-Sync
\n\u884c\u540c\u6b65\u4fe1\u53f7\uff1aH-Sync
\nAT7456E \u901a\u8fc7\u68c0\u6d4b\u8fd9\u4e9b\u540c\u6b65\u4fe1\u53f7\u6765\u786e\u5b9a\u89c6\u9891\u5e27\u7684\u5f00\u59cb\u548c\u7ed3\u675f\uff0c\u4ece\u800c\u7cbe\u786e\u5b9a\u4f4d\u5b57\u7b26\u53e0\u52a0\u7684\u4f4d\u7f6e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
https:\/\/blog.csdn.net\/bother3000\/article\/details\/149432 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-3573","post","type-post","status-publish","format-standard","hentry","category-plana"],"_links":{"self":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/3573","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3573"}],"version-history":[{"count":1,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/3573\/revisions"}],"predecessor-version":[{"id":3574,"href":"http:\/\/www.51cos.com\/index.php?rest_route=\/wp\/v2\/posts\/3573\/revisions\/3574"}],"wp:attachment":[{"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3573"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.51cos.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}