荣耀彩票代理

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分析贴你所不知道的嵌入式和单片机

作者:wy  来源:网络整理  发布日期:2019-01-24 08:32:00

  SUIZHEJINGJIJIEGOUKUANGJIADEBUDUANGENGXIN、YANFAKEJIJISHUDEBUDUANGAIJIN,ZHEIXIEDOUJIWOMENDESHENGHUODAILAILEJUDADEBANGZHUHEBIANLI,WOMENREAIZHEZHEIGESHIJIEREAIZHEZHEIGEGUOJIA,WOMENYUANYISHISHIKEKEDOUWEICIERFUCHUXINQINDEHANSHUI,JINTIANBENPIANWENZHANGJIDAJIADAILAIXIANGGUANQIANRUSHIDEFENXITIEQIANRUSHISHISHENME?DAODIDANPIANJISHUBUSHUYUQIANRUSHI?

  其实,一直以来,嵌入式都是一个比较复杂的技术概念,目前国内外关于嵌入式系统尚无严格、统一的定义。

荣耀彩票代理  GENJUMEIGUOIEEEDEDINGYI,QIANRUSHIXITONGSHIYONGYUKONGZHI、JIANSHIHUOFUZHUCAOZUOJIQIHESHEBEIDEZHUANGZHI。

  MUQIAN,DAJIAGUANGFANDIDINGYIJIUSHI:CHULEZHUOMIANDEPCJIZHIWAI,QITADEJUYOUKONGZHI、CAOZUOGONGNENGDESHEBEIJIUSHIQIANRUSHI。

荣耀彩票代理  NEIME,51DANPIANJISUANBUSUANSHIQIANRUSHINI?

  ZHEIGEWENTIZHIQIANZHETENGLEWOHAOZHANGYIDUANSHIJIAN,HAIGENBIERENZHENGZHIGUO。

  DANSHI,NIKANSHANGMIANDEDINGYI,51DANPIANJIJIUSHUYUQIANRUSHI。

荣耀彩票代理  QIANRUSHIXITONGYIBANYOUQIANRUSHIWEICHULIQI、WAIWEIYINGJIANSHEBEI、QIANRUSHICAOZUOXITONGYIJIYONGHUYINGYONGRUANJIANSIGEBUFENZUCHENG。

  QIZHONGQIANRUSHIWEICHULIQIDETIXIJIEGOUKEYICAIYONGFENG -NUOYIMANTIXIJIEGOUHUOZHEHAFOTIXIJIEGOU,ZHILINGXITONGKEYIXUANYONGJINGJIANZHILINGJIXITONG(RISC)HEFUZAZHILINGJIXITONG(CISC)。FENG-NUOYIMANYUHAFODETIXIZUIDADEBUTONGJIUSHIZAIYU,QIANZHEQICHENGXUHESHUJUGONGYONGYIGECUNCHUKONGJIAN,ERHOUZHESHIJIANGCHENGXUHESHUJUCUNCHUZAIBUTONGDECUNCHUKONGJIANZHONG。ERGUANYUZHILINGXITONG,CISCGENGJIAZHUANZHUYUGAOXINGNENGDANTONGSHIYEXUYAOGAOGONGHAO,ERHOUZHE(RISC)ZEZHUANZHUYUXIAOCHICUNDIGONGHAODELINGYU。

  SUOYI,YIBANQIANRUSHIXITONGYONGDEDOUSHIRISC。

  WEISHENME?

  YINWEIQIANRUSHISHEBEIZICHUSHENGYILAI,BENLAIJIUSHIYONGZAIMOUYILINGYUDE,TAJIJICHENGLEJISUANJITEYOUDEYIXIEGONGNENG,YOUCAIJIANLECHUCIZHIWAIDABUFENBUXUYAOYONGDAODEGONGNENG。KEYISHUO,XIANGDUIJISUANJI,QIANRUSHISHEBEIZHIZHENDUIYUMOUYIFANGMIAN,ERJISUANJISHIZHENDUIYUQUANJUERYAN。

  ZAILAISHUOSHUOMUQIANQIANRUSHIWEICHULIQIDEZHUYAOXILIE,YOUARM7、ARM9、ARM10、ARM11、ARM CortexDENG。

单片机

  DANGRAN,ZAIARM7ZHIQIANHAIYOUQITAARMXILIEDE,DANSHIYOUYUSHICHANGSHANGMUQIANZHULIUDESHIARM7JIARM7YIHOUDE,SUOYIQIANMIANDEWOMENJIUBUSHUOLE。

荣耀彩票代理  ARM7 ,32WEIHE,CAIYONGDESHISANJILIUSHUIXIANHEFENG-NUOYIMANTIXIJIEGOU,ARMv3HUOARMV4JIAGOU;YIBANLAISHUOPAOCAOZUOXITONGBIJIAOCHILI;ARM9,ARMv4HUOARMv5JIAGOU,WUJILIUSHUIXIAN,HAFOTIXI;YOUYUJIEGOUBUTONG,ARM7DEZHIXINGXIAOLVDIYUARM9。

  CIWAI,ARM7YIBANMEIYOUMMU(NEICUNGUANLIDANYUAN),(ARM720TYOUMMU)。ARM9YIBANSHIYOUMMUDE,ARM9940TZHIYOUMPU ,DANBUSHIYIGEWANZHENGDEMMU。

  ZHEIYITIAOHENZHONGYAO,MMUDANYUANSHIDAXINGCAOZUOXITONGBIXUDEYINGJIANZHICHI,RULINUX;WINCEDENG。ZHEIJIUSHISHUO,ARM7YIBANZHINENGYUNXINGXIAOXINGDESHISHIXITONGRUUCOS-II,eCOSDENG,ERARM9WUCIXIANZHI,YIBANDECAOZUOXITONGDOUKEYIYIZHI。QISHIJISHIARM720TNENGZHICHILINUX;WINCEDENGXITONG,YEXIANYOURENYONG,YINWEIYIARM7DEYUNXINGSUDUPAOZHEIZHONGDAXINGCAOZUOXITONG,SHIZAIYOUDIANCHILI。

荣耀彩票代理  ZAILAISHUOYIXIAARM10,WEISHENMEHUIYOUARM10ERMEIYOUTINGSHUOGUOARM8NI?

荣耀彩票代理  QISHI,DOUSHIYOUDE;ZHISHI,ARM8YUARM7MEIYOUFASHENGBENZHISHANGDEQUBIE,ARM10XIANGBIYUARM9YESHI,SUOYI,HENSHAOTIJI。

  ZHEILIZAISHUOYIXIAARM9E,SUIRANTAYESHISHUYUARM9XILIEDE,DANYUARMHAISHIYOULEHENDADEQUBIE,JIUSHIARM9EXILIEWEICHULIQITIGONGLEZENGQIANGDEDSPCHULINENGLI,HENSHIHEYUNEIXIEXUYAOTONGSHISHIYONGDSPHEWEIKONGZHIQIDEYINGYONGCHANGHE。

  JIEXIALAIJIUSHIARM11LE,ARMv6JIAGOU,8/9JILIUSHUIXIAN,YI32WEIDECHENGBENTIGONG64WEICHULIQIXINGNENG。WEIDUOMEITIYINGYONGDEKAIFAHETUIGUANGDAXIALEJIANSHIDEJICHU。

荣耀彩票代理  NEIMEYOUMEIYOUARM12,ARM13NI?

  MEIYOULE。

荣耀彩票代理  YINWEIHOUMIANARMGONGSI(ARMJISHIYIMENJISHUDEFANCHENG,YETONGSHIDAIZHIYIJIAGONGSI)YOUYUARMv-6KAISHIZHIHOU,YINJINLEXUDUOTUPOXINGDEXINJISHU,CUNCHUQIXITONGZENGJIALEHENDUOZHANXINDETEXING,RUDANZHILINGDUOSHUJULIU(SIMD)ZHILING;SUOYI,ARMGONGSIJINYIBUKUOZHANLEQICPUDESHEJI,TUICHULEARMv-7TIXIJIEGOUCHULIQI。ERQIE,ZAIARMv7BANBENZHONG,NEIHEJIEGOUSHOUCICONGDANYIDEKUANSHIBIANCHENGLESANZHONG。

  1.ARMv7-A:ZHICHIDAXINGQIANRUSHICAOZUOXITONG,ZHUIQIUQIGAOXINGNENG,SHIQIYUELAIYUEJIEJINYUYITAIJISUANJI。QICHANPINBAOHANLEGAODUANDESHOUJI,SHOUCHIYIQI,DIANZIQIANBAOHEJINRONGSHIWUCHULIJIDENG;

荣耀彩票代理  2.ARMv7-R:ZHUYAOZHUIQIUDESHIDAIYOUSHISHIYINGYONGDEQIANRUSHIXITONG,DIANXINGDEYINGYONGZAIYUDAXINGFADIANJIDEKONGZHIQI,JIQIRENSHOUBEIKONGZHIQIDENG;

  3.ARMv7-M:QIYONGYUSHENDUQIANRUDEDANPIANJIHUOMCUFENGGEDEXITONGZHONG;ZHUIQIUDICHENGBEN,DIGONGHAO,JISUZHONGDUANFANYINGYIJIGAOCHULIXIAOLV,LIRUSTM32ZHONGDEARM Cortex M3JIUSHUYUZHEIYILEI。

  NEIME,Cortex-M3PAODELEXITONGMA?

  答案是可以的,但是跑不了Linux这类大型的,但是对于 C/OS-Ⅱ和FreeRTOS还是绰绰有余的。

荣耀彩票代理  MEITIANWOMENDOUHUIZAICIJIDAJIAFENXIANGHEJIESHAOBUTONGDEXIANGGUANZIXUN,WULUNSHIXINXIANCHULUDEXINWENHAISHIJISHUFENXIHANLIANGGAODETIEZINIDOUHUIZAIWOMENDEWANGZHANKANDAOTADECUNZAI,WOMENZONGSHIMIANDUIXUDUODEYIWENQIANRUSHISHISHENME?DAODIDANPIANJISHUBUSHUYUQIANRUSHI?ZHEIYANGDEJIEDABUZHIDAONIMANBUMANYI。GANXIENIMENDEZHICHIHEHEZUO,WOMENZHONGXINDEGANXIENIDESHIKEGUANZHU,WOMENJIANGHUICHENGXINCHENGYIWEINIDAILAIZUIXINXIAOXI。

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