{"id":193,"date":"2022-12-22T01:37:37","date_gmt":"2022-12-21T17:37:37","guid":{"rendered":"https:\/\/vm1.go2see.me\/?p=193"},"modified":"2022-12-22T02:24:08","modified_gmt":"2022-12-21T18:24:08","slug":"rtos-%e6%af%94%e8%be%83","status":"publish","type":"post","link":"https:\/\/vm1.go2see.me\/?p=193","title":{"rendered":"RTOS \u6bd4\u8f83"},"content":{"rendered":"

RTOS\u7684\u597d\u58de\u7aef\u770b\u61c9\u7528\u5834\u666f\uff0c\u4ee5\u53ca\u5728\u5834\u666f\u4e0b\u7684\u5404\u7a2e\u5eab\u7684\u652f\u6301\u7a0b\u5ea6\u3002<\/p>\n

\u61c9\u7528\u5728\u6c7d\u8eca\u706b\u7bad\u91ab\u7642\u7b49\u7279\u6b8a\u9818\u57df\uff0c\u9700\u8981\u5c0d\u5b89\u5168\u7b49\u7d1a\u7684\u652f\u6301\uff0c\u61c9\u7528\u5728IOT\u9818\u57df\uff0c\u9700\u8981\u5c0d\u7db2\u8def\u76f8\u95dc\u5eab\u7684\u652f\u6301\u3002\u6b64\u5916\uff0c\u597d\u5b89\u88dd\u3001\u4f4e\u5b78\u7fd2\u6210\u672c\u662f\u4f01\u696d\u9078\u64c7RTOS\u7684\u4e00\u5927\u689d\u4ef6\u3002<\/p>\n

\u5728\u505a\u85cd\u7259\u9805\u76ee\u7684\u6642\u5019\uff0c\u89ba\u5f97Zephyr\u662f\u6700\u524d\u6cbf\u7684\uff0c\u6700\u65b0\u7684 Stack\u548cCodec\u90fd\u6703\u5728Zephyr\u4e0a\u770b\u5230\u3002Zephyr\u9084\u63d0\u4f9b\u4e86\u5b89\u5168\u7b49\u7d1a\u7684\u9a57\u8b49\u4fe1\u606f\uff0c\u6709\u5b89\u5168\u8981\u6c42\u7684\u7cfb\u7d71\u662f\u4e0d\u932f\u7684\u8003\u91cf\u3002<\/p>\n

\u82e5\u8981\u8aaa\u597d\u79fb\u690d\u3001\u597d\u5b78\u7fd2\uff0c\u57fa\u65bc\u539f\u751f POSIX \u898f\u7bc4\u7684 Nuttx\u662f\u4e0d\u932f\u7684\u9805\u76ee\u3002\u57fa\u672c\u4e0aNuttx\u5c31\u662f\u6c92\u6709MMU\u7684unix like\u7cfb\u7d71\uff0c \u5f88\u9069\u5408\u505aIoT\uff0c\u5927\u90e8\u5206\u7684POSIX\u61c9\u7528\u90fd\u80fd\u5728\u4e0a\u9762\u5f88\u597d\u7684\u79fb\u690d\u3002\u958b\u767c\u5de5\u7a0b\u7684\u8a2d\u5b9a\u4e5f\u5f88\u50cfLinux\u5462\u3002<\/p>\n

\u5982\u679c\u61c9\u7528\u662f\u67b6\u5728micropython\u74b0\u5883\u4e0a\uff0c\u90a3\u9ebcRTOS\u7684\u9078\u64c7\u4f3c\u4e4e\u5c31\u4e0d\u662f\u90a3\u9ebc\u91cd\u8981\u4e86\uff0cmicropython\u53ef\u4ee5\u5728\u5c0f\u578b\u7cfb\u7d71\u539f\u751f\u7684\u57f7\u884c\uff0c\u4e5f\u53ef\u4ee5\u5b89\u88dd\u5728\u591a\u7a2e RTOS\u4e0a\u3002<\/p>\n

\u4e0d\u8003\u616e\u5546\u696d\u6388\u6b0a\u91d1\u7684\u8a71\uff0c\u5fae\u8edf\u7684Azure\/ThreadX\u770b\u8d77\u4f86\u662f\u842c\u9748\u4e39\uff0c\u5b89\u5168\u3001\u529f\u80fd\u5eab\u90fd\u76f8\u7576\u9f4a\u5168\uff0c\u6216\u8a31\u7522\u54c1\u4e5f\u80fd\u66f4\u5feb\u901f\u7684\u7b26\u5408\u4e0a\u5e02\u8981\u6c42\u5427\u3002<\/p>\n

\u6c7d\u8eca\u7522\u696d\u7528\u5f97\u6700\u591a\u7684QNX\uff0c\u662f\u975e\u958b\u6e90\u7684\u7522\u54c1\uff0c\u4f46\u9019\u6a23\u53ef\u80fd\u4e5f\u66f4\u96e3\u88ab\u767c\u73fe\u6f0f\u6d1e\uff0c\u7dad\u6301\u7cfb\u7d71\u7684\u5b89\u5168\u5427\u3002\u3002\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u641c\u96c6\u6574\u7406\u7684\u3001\u6211\u6bd4\u8f03\u6709\u8208\u8da3\u7684 RTOS\u6bd4\u8f03\u8868\u3002\u54a6\uff1fAGL Linux\u4e82\u5165\u4e86\u3002\u3002\u3002\u3002\u61f6\u5f97\u522a\u4e86\uff0c\u5c31\u9019\u6a23\u5427\u3002\u3002\u3002<\/p>\n

RTOS \u6bd4\u8f83\u8868<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/th>\nZephyr<\/a><\/th>\nAzure<\/a> ThreadX<\/th>\nFreeRTOS=> SafeRTOS<\/a><\/th>\nAGL<\/a> (Linux)<\/th>\nQNX<\/a><\/th>\nLynxOS<\/a><\/th>\nNuttX<\/a><\/th>\n<\/tr>\n<\/thead>\n
License<\/td>\nApache 2.0<\/td>\nComerical<\/strong>
free for proto\/edu<\/td>\n		MIT=> Comerical<\/td>\nGPL<\/td>\nComerical<\/td>\nComerical<\/td>\nApache 2.0<\/td>\n<\/tr>\n
SMP\/AMP<\/td>\nSMP\/OpenAMP<\/td>\nSMP\/ OpenAMP<\/td>\nSMP AMP<\/td>\nSMP<\/td>\nSMP AMP<\/td>\nSMP AMP<\/td>\nSMP<\/td>\n<\/tr>\n
POSIX<\/td>\nsubset of
PSE51 PSE52
BSD Sockets<\/td>\n		OK<\/td>\npartially IEEE 1003.1-2017<\/td>\nOK<\/td>\nOK<\/td>\nnative PSE 53 PSE 54<\/td>\nnative POSIX API ANSI
BSD Sockets<\/td>\n<\/tr>\n
FileSystem<\/td>\nVFS:
NFFS FATFS FCB<\/td>\n		FileX (FAT\/exFAT)<\/td>\nFatFs<\/td>\nvarious<\/td>\nDOS EXT2 QNX6 UDF FFSv3 ETFS<\/td>\n<\/td>\nVFAT ROMFS NXFFS NFSv3<\/td>\n<\/tr>\n
GUI<\/td>\nlvgl<\/td>\nGuiX+tools<\/td>\nlvgl<\/td>\nX11 Qt HTML5<\/td>\n<\/td>\n<\/td>\nnx\u3001lvgl<\/td>\n<\/tr>\n
Loadable app<\/td>\nNA<\/td>\nNA<\/td>\nNA<\/td>\nOK<\/td>\n<\/td>\n<\/td>\nNXFLAT
(cortex m3\/m4 only)<\/td>\n<\/tr>\n
Bluetooth
BLE<\/td>\n		BLE 5.0 compliant (ESR10)
BLE5.2 LEAudio\u3001Mesh BR\/EDR:rfcomm<\/td>\n		Yes<\/td>\nNimBLE Mesh BTStack<\/td>\nBlueZ<\/td>\n<\/td>\n<\/td>\nBTStack(SONY)
BLE from zephyr<\/td>\n<\/tr>\n
Platform Security<\/td>\nPSA Certified TF-M<\/a><\/td>\nPSA Certified<\/td>\n–<\/td>\n–<\/td>\n–<\/td>\nCSfC FACE\u2122 2.0<\/a><\/td>\n–<\/td>\n<\/tr>\n
Industrial<\/a> IEC61508<\/td>\nSIL 3<\/td>\nSIL 4<\/td>\nSIL 3<\/td>\nSIL 2?<\/td>\nSIL 3<\/td>\n<\/td>\nNA<\/td>\n<\/tr>\n
Automotive<\/a> ISO26262<\/td>\nASIL D<\/a><\/td>\nASIL D<\/td>\nASIL D<\/td>\nASIL B ?<\/td>\nASIL D<\/td>\n<\/td>\nNA<\/td>\n<\/tr>\n
Medical<\/a> FDA510(k) IEC62304<\/td>\n–<\/td>\nFDA510\uff08k\uff09IEC62304 Cls.C IEC60601 ISO14971<\/td>\nFDA510(k) IEC62304<\/td>\n–<\/td>\n–<\/td>\n<\/td>\nNA<\/td>\n<\/tr>\n
Aerospace<\/a><\/td>\n–<\/td>\nDO-178B\uff0cED-12B\uff0cDO-278<\/td>\nDO178C<\/td>\n–<\/td>\n–<\/td>\nDO 178B DO 178C ARINC 653-1<\/td>\nNA<\/td>\n<\/tr>\n
MISRA<\/td>\nMISRA C:2020<\/td>\nMISRA C:2012<\/td>\nmisra C:2004<\/td>\n?<\/td>\nMISRA C\/C++ 2012<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
Pros<\/strong><\/td>\nfree
safty certs
lots MCU ports BLE 5.x ref. Bd.<\/td>\n		Stable ThreadX perfact safty cert<\/td>\nFreeRTOS API
safety cert<\/td>\n		Focus on CAR AP<\/td>\nsafty cert Hypervisor middleware<\/td>\nsafty cert Hypervisor Aerospace<\/td>\nFree
Easy to Porting<\/td>\n<\/tr>\n
Cons<\/strong><\/td>\n<\/td>\nPrice?<\/td>\nPrice?<\/td>\nGPL poor safety cert<\/td>\nPrice?<\/td>\nPrice?<\/td>\nNo safety cert<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

FreeRTOS POSIX: https:\/\/www.freertos.org\/Documentation\/api-ref\/POSIX\/index.html<\/p>\n

NuttX<\/a>: Think of NuttX is a tiny Linux work-alike with a much reduced feature set.<\/p>\n

Zephyr POSIX<\/a> : Implements a subset of the embedded profiles PSE51 and PSE52, and BSD Sockets API.<\/p>\n

List of open source RTOS<\/a>: \u6536\u96c6\u5f00\u6e90\u7684RTOS\u4fe1\u606f<\/p>\n

\n","protected":false},"excerpt":{"rendered":"

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