嵌入式开发-什么是嵌入式实时操作系统.pdf
?RTOS 是开发计算机嵌入式应用产品的有力工具研究和掌握 RTOS 的思想方法有益于提高开发人员的水平从而缩短产品开发周期提高产品质量从本期起学习园地将连载嵌入式 RTOS 讲座主要内容如下 什么是嵌入式 RTOSRTOS 中的一些基本概念介绍一个源码公开的实时内核在 PC 机上实现该实时内核的运行让该实时内核在 8 位单片机的运行如何将该实时内核移植到 32 位CPU 上?清华 Motorola 单片机应用开发研究中心 邵贝贝 许庆丰 等?!#$%&(?)*?+,-./0123?45?6789:;3?A+,BC(D(?EF%?GH?IJ(?FKL=?(?MNOPQ(RS?TU?V?WX?YZ(?V+,_a?bc d*?67_5?67e?fgh?ijLPQ(?kTlmBCX?noBC?!BC?p?qrsct?=?23?ORuvw?YP(?Bx3yz?#?Bx?|?OR?d*3?:(?O?$?(?b*BC%?1+,BC?mf?PQ(?&?%&?(?b*+,BC?&?(/?+,BC?J?*?“fi?+,BCMfl/?:239:+,BC?,?)?/R?)?/9:?&?(+,BC?G?”D(?/?E?!#$?%&(?)*?+,-./?0&12?34)56789:;?A?B8?=&C?D?EFG?48HI?=5JK?M:?3+,BC/|?-.?3os?L=?G?(+,BC?!?W?W?f?W?+,BC?W67?m?BC?1+,BC?M?mf?/?1?b23?c,?/?A?23?)?=(?u?+,BC?m23RSH?67?+XlmW?W*?d?;?%mW?LM8N2?LM8N2?LM8N2?LM8N2?*+,BC?*?+?,?-?./,?&?(/b*BC?*W?&?(?1?lm?k?BC1?3?*?(?*BCX.?0?1?+,BCDfi?:?M?os?(?os?*?/?.?L?.?|/?!M&?(?b R?#)L$%?&(?b?.?R)?.*+,-?&d?/?*+,BC+,./?d0123?(?4?Gc5?01?161?,7?89:;)L=?m?&?(/?&?(AB?84(?3m?CD?b?E?fl?F/eBC?H/G?*BC/HR?I?*?,J|RL1?K?3P?BC|+,?LIOMNO?P?LI?Qdk+,?*?:R?I?*?,/d?7S?/fl?*BC/1?*?:Tv.*?UX?VWXYBC.%2?Z?:;?%L|f:;D?f:;?c,?_?*?ab?,?cdPQe?4fg?hi?jk*?#?lmBC?dn*?,?i%2?ZPL?f:;#?*?osh?lmp?#?,?/?*?q?lm:?lm*?#?/r?*BC?BC5:?*OLflHmBC?_lm?s?BC?t?/?*BC?*BC:|5F?*ou?.*m*o.*1?*BC?*?os?*?os/Mz?*+,BC/?%m?23L=?u?BCR?*?,1?u?GP?P)?b*+,BC?*+,BC?(BC1?K?3?*?I?O d12?BC?AB(?*+,BC_b*+,BC?.x?.?b*?:*?x?,?A“?d0?fifldk?*?-.:?w2/?3G?_?.*?#m?h?b?3G?W?Lw?/?.*)?%3&?“d?e?H/?/?b?*,7?”?*?/?)?3G?*1?e?D?x?mx?o?o?1?O?3*?3?G?*?*?,?*?0?,.X?.“$?$?,?d|?m?-?-?%?d?8Mb*+,BC?*+,BC?*?*OR8w?*BC?8”?*+,BCdk?*+,BC?-.?:?!?J?!?e?*?_?!?lm*?!?_s?*+,BC:?04?/?(5?+?6?(?5?_.?0?O?KN2?O?KN2?O?KN2?O?KN2?*BC/?BC?dBC?e,?uBC?s?Z?,?R?3c5?3?G?/?G?Q?G=_?*“=/?+,BC/?*+,BC/?V?G?*+,BC?CD?G=?*?,7?Gbf?.?RB?*?,7?*?,7?%mdk?G?(?+,BC:?,z?!?%m?3%m?!,%m?!?%m?%m?!?5?%m?*+,BC9:+,BC?3BC?,z?.,%m?5:?/?*+,BC?.?,z?*?_?*?+,|.?s?J?:?7/?5:_?*?_?*?*+,BC?CD/?*?,7?6?w?flH?*BC?!?*,7rw?,7?%m?:!“?*?l?“?:?|?dl?X?O?KP;QRO?KP;QRO?KP;QRO?KP;QR;?S:?S:?S:?S:?=?-.?/=?BC?MNO?|/osBC3?”?,?C?G?/01?e?sdM?O?D?*?lV?fi?=u?8?fi?D?*RNN23?8?ZBC1?%m?BCd?MR/?e?M?1|?MMbf?M?Z?no?nV?“?DK?*”?k?/?&?(?:ij?7?*#?&?(?+?9?/d?:,?/?;?d;HI?=?.?/=?G;?G?!?Mbf?h?#?3?8=(&r?BC?r?/?*r?3?D#$?%&w=?%&sd?&()(|?.?#$?%3&?/?“?+,BCX&?(?,?*?=#(Bx?%&?U|%3&?#$/=?$?%3&yz?x)?“?*BC?k?5*S?|;z+D3?1?*,7?“1?a X?2?O?d?%&#$?%3&?P?3?9:G4P?fl9:+,BC?:?;/9:?:5%3&?DBC?*?5+,BC?6/#L?R;N2TU?VWXR;N2TU?VWXR;N2TU?VWXR;N2TU?VWXY Y Y Y?*+,BCu?|?/H?*,7?*?_7?8?z+?.?#Z?M9?R?b:?I?:*?.*;?38?D(MRs?*M?mA?*,7 dk?*/?5?B$D?b&?%3&?CDA,7?uv?9:=D?E/?*,79?uv?k?uv?/?1?4B83/?+,BCM?*,7H?HP%mVIBC:?;3BCJK67?|?3?L:%?/13*?,?9?+?*?/;?uv?MD#?)?M?s%MRNh?BC?O?%0P?QR?Dh?V?S?PT?%?U3h?V?O?MD$?M3?A3a?db?B?h?V?D?)?M?2?3?h_Z?,?,J?:?U?M?N?R?/M?D?q?d?&:?+,BC3?/?0d/?&?0?+,BC?-?_?q?!?k?J?YP(?*?0?YP?kM?/%?_%?1?M?#$?M?=?=?%?=?%?%3&?7S?BC?(%?Q(%?,?*?#$?%3&?=7%3&#$?%?“?%dk:?mfaL?BC?/?=bc?c,?x/?9:?dn?d?;?ebc?GV?S?G?8?)Sf?2ghi?d?jkc,?lr?”%?J?-.?mn1?:?mf?6?oS?:?33?r?dn?Z?O?KP;?XZ?O?KP;?XZ?O?KP;?XZ?O?KP;?X?rs/?t?ij?zuvw?Juh2?-/ij?x?by?=?zD8.?|?JG/?CMR/?J?2?$?_)?A?:?A?by)?h?;?A?2305?67X?ijfg()?67?(?;=?BC?b?67?1*?05?!?:?.?_?A?A?/A?=?/#$?%&?;?fl)?BCJ=?Sr(G”?h?;?fl:Rl?%&?X!?)?l?AX?:?D(?V?(#$?%&6?|?V?d?w?MR;JL/?:(?Sd?Gc5?#$?%&Lw=?%&?-#$?%&6?G”?D?G?c?/?jk?1?mfXR?w?S?/%3&?W?5?b?L9:5+,BC?M-?b?23?0?BCc,(?Gc,?(?)?s?16?:R?D?5F?d?(?c?d?=?:?%&?H?#$?%&BC?d?bH?Y?/?d?Zc?X?h?G?C?|?V?;MN;?G?;?by)?G?h?)?/|?jk?/?=?dk1mjk:?2)1?s?mf?|?U#$?%3&*MA?R)?m?S?G?)?n*?,?,?-./Ndk?YZ Z/d?X?c5_?“?/=?L?
