Linux MTD介紹: MTD(memory teChnology device內(nèi)存技術(shù)設(shè)備)是用于訪問(wèn)memory設(shè)備(ROM、flash)的Linux的子系 統(tǒng)。MTD的主要目的是為了使新的memory設(shè)備的驅(qū)動(dòng)更加簡(jiǎn)單,為此它在硬件和上層之間提供了一個(gè) 抽象的接口。MTD的所有源代碼在/drivers/mtd子目錄下。我將CFI接口的MTD設(shè)備分為四層(從設(shè)備節(jié) 點(diǎn)直到底層硬件驅(qū)動(dòng)),這四層從上到下依次是:設(shè)備節(jié)點(diǎn)、MTD設(shè)備層、MTD原始設(shè)備層和硬件驅(qū) 動(dòng)層。 根文件系統(tǒng) 文件系統(tǒng) 字符設(shè)備節(jié)點(diǎn) MTD字符設(shè)備 MTD塊設(shè)備 MTD原始設(shè)備 FLASH硬件驅(qū)動(dòng) 塊 重點(diǎn)是mtd的定義, 以及為什么要有mtd mtd設(shè)備的分層
標(biāo)簽: memory MTD Linux teChnology
上傳時(shí)間: 2013-12-27
上傳用戶:helmos
descript the key teChnology of mmu of linux kernel
標(biāo)簽: teChnology descript kernel linux
上傳時(shí)間: 2016-09-07
上傳用戶:大三三
IEEE 802.11a-1999 (8802-11:1999/Amd 1:2000(E)), IEEE Standard for Information teChnology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 1: High-speed Physical Layer in the 5 GHz band
標(biāo)簽: IEEE 1999 Information Telecommuni
上傳時(shí)間: 2013-12-24
上傳用戶:hjshhyy
802.11b-1999/Cor1-2001, IEEE Standard for Information teChnology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 2: Higher-speed Physical Layer (PHY) extension in the 2.4 GHz band—Corrigendum1
標(biāo)簽: Telecommunications Information information teChnology
上傳時(shí)間: 2013-12-10
上傳用戶:gxf2016
IEEE 802.11d-2001, Amendment to IEEE 802.11-1999, (ISO/IEC 8802-11) Information teChnology--Telecommunications and information exchange between systems--Local and metropolitan area networks--Specific requirements--Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Specification for Operation in Additional Regulartory Domains
標(biāo)簽: 802.11 IEEE Information teChnology
上傳時(shí)間: 2014-01-21
上傳用戶:壞天使kk
IEEE 802.11e-2005, IEEE Standard for Information teChnology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Amendment 8: Medium Access Control (MAC) Quality of Service Enhancements
標(biāo)簽: Telecommunications IEEE Information information
上傳時(shí)間: 2016-10-02
上傳用戶:rishian
IEEE 802.11g-2003 IEEE Standard for Information teChnology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 4: Further Higher-Speed Physical Layer Extension in the 2.4 GHz Band
標(biāo)簽: Telecommunications IEEE Information information
上傳時(shí)間: 2016-10-02
上傳用戶:cx111111
IEEE 802.11h-2003 IEEE Standard for Information teChnology—Telecommunications and Information Exchange Between Systems—LAN/MAN Specific Requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications: Spectrum and Transmit Power Management Extensions in the 5GHz band in Europe
標(biāo)簽: Information Telecommunications IEEE teChnology
上傳時(shí)間: 2016-10-02
上傳用戶:lnnn30
IEEE 802.11j-2004 IEEE Standard for Information teChnology—Telecommunications and information exchange between systems--Local and metropolitan area networks—Specific requirements—Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications—Amendment 7: 4.9 GHz–5 GHz Operation in Japan
標(biāo)簽: Telecommunications IEEE Information information
上傳時(shí)間: 2014-01-17
上傳用戶:asasasas
是英文 “ Surface mount teChnology ”的縮寫(xiě)。即表面安裝技術(shù),這是一種較傳統(tǒng)的安裝方式。其優(yōu)點(diǎn)是可靠性高,缺點(diǎn)是體積大,成本高,限制 LCM 的小型化。 是英文 “ Chip On Board ”的縮寫(xiě)。即芯片被邦定(Bonding)在PCB上,由于IC制造商在LCD控制及相關(guān)芯片的生產(chǎn)上正在減小QFP( SMT 的一種)封裝的產(chǎn)量,因此,在今后的產(chǎn)品中傳統(tǒng)的 SMT 方式將被逐步取代。
標(biāo)簽: teChnology Surface mount 英文
上傳時(shí)間: 2016-10-08
上傳用戶:nairui21
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