USB OTG

Simple operation

Say simply, OTG is On The Go, The ongoing meaning.

We first to do an assumption --

Next day, I took the MEIZU the latest product "EX" came to the school, listen "EX" inside pack of my latest download a new song, one of my good friends won my earplugs want to listen to this song, she listen and intoxicated, saying: "I find this song has for a long time, but always can not download to, where did you find it?" I smiled to she took out her Mp3, at the same time I take from a portable key data of the data, a plugged in "EX" on, the other end insert in her Mp3, I open "EX" menu, select OTG technology based on the transfer mode, directly will this first listen but hard to find song "kao" to her Mp3, she was very surprised, until she was in her Mp3 on heard this song to believe that all this is really...

From its principle Angle to simply said

Everyone know since 1996, the birth of USB transmission agreement with its advantage, and soon made a hit with all computer peripherals and digital equipment, everyone know USB device into HOST (main device) and SLAVE (from equipment), only when a HOST in a SLAVE connections can realize the data transmission, OTG equipment is our "EX" can act as HOST, also can play a SLAVE.

origin

Since 1996, after USB1.0 standard USB - IF (Universal Forums) * Implementers Bus in succession again released USB1.0, USB2.0 and USB OTG, including several standard USB2.0 transmission bandwidth 480Mbps, and USB OTG to more make USB devices out of the original master-slave architecture limit, has realized the end-to-end transfer mode, with USB standard constantly improve, USB applications also got expansion. USB birth was the purpose of computer and its peripherals simplified the connection, was first used in the keyboard and mouse, and now, USB application has been from the PC peripherals to consumer electronic products and across communication, electronics products field, the most significant application is for digital camera, etc on consumer electronic products.

development

At present, the USB connection and low power consumption and facilitate the high-speed transmission properties has made it a convenient application framework, it and other technology with the then grew out of new applications. As in mobile storage areas, USB and flash union, creative spawned currently popular mobile storage equipment - U disk.

USB OTG profile

USB OTG is USB On The abbreviation of The - Go -, is developed in recent years, The technology On December 18, 2001 by USB Forum announced Implementers, mainly used in different kinds of equipment or mobile device, The connection between data exchange. Especially PDA, mobile telephone, consumer devices. Change such as digital cameras, video cameras, printer and other equipment of different formats between connector and up to 7 formats between data exchange the memory of inconvenience. USB technology development makes the PC and peripheral equipment can through simple way, the moderate manufacturing cost will all sorts of equipment connected together, we mentioned above, can be used as PC via USB bus, the periphery of under the control of the PC exchange data. But this convenient exchange ways, once out of the PC, each using USB ports between devices cannot operate, because no one device that can act as the Host PC as. Go On, namely The - - in no OTG technology is to realize The cases, realize Host data transmission between devices. For example a digital camera is connected directly to the printer, OTG technology, through connects two equipment seen USB port, will be patted photo immediately typed out; Can also will digital camera's data, through the USB OTG sent to move hard disk, field operation not was necessary to carry the memory, or expensive back a portable computer.