x15 bus

---- Any microprocessor must be connected to a certain number of components and peripheral devices. However, if each component and peripheral device are connected directly with a set of lines, the connection will be complicated and even difficult to implement. In order to simplify the design of hardware circuits and system structure, a group of lines are commonly used and configured to connect with components and peripheral devices with an appropriate interface circuit. This group of common conn

Loaded from http://blog.csdn.net/sjwangjinbao/article/details/6077225When writing a bus device driver, it was found that the struct device in the 2.6.33.2 kernel had no members of BUS_ID, and the const char *init_name member was found. However, this member cannot be used directly to set and read the device name.The method for kernel operation is dev_name and Dev_set_name. The definition in the kernel is:1) dev_nameStatic inline const char *dev_name (c

transmitted from inside the computer to the output serial data stream. A serial that is external to the computerThe data is converted to bytes for use by devices inside the computer that use parallel data. In the output serial data stream, add theParity bit and parity with the data stream received from the outside. Add a start-stop flag to the output data stream,And remove the start-stop flag from the receiving data stream. Handles interrupt signals issued by the keyboard or mouse (keyboard and

1 basic In the device driver often see and platform related fields, distributed in many corners of the driver, this is also the 2.6 kernel of a more important mechanism, the principle of its understanding, for later analysis of the driver is very helpful, the following brief introduction: In the linux2.6 device model, care about the bus, the device, drive the three entities, the bus will be device and drive

Simulation of I2C bus multi-master communication research and Software Design Author:■ Zheng Xuyang, Xi'an University of electronic science and technology, Li Bingbing, Huang Xinping Abstract:This paper introduces the principle of multi-master communication simulating I2C bus, and proposes a new implementation method. This method uses delayed receiving comparison to implement arbitration, so that common Mic

FSB--front Side Bus (FSB) is the bus that connects the CPU to the North Bridge chip. Choose the motherboard and CPU, pay attention to the two collocation problem, in general, the front-end bus is determined by the CPU, if the motherboard does not support the CPU required front-end bus, the system can not work. That is,

Common faults and solutions for computer bus interface once had such a statistical report: computer failure in 40% from the computer's bus interface! Since the computer is plugged together by a variety of accessories, it is difficult to ensure that each slot can work stably, such as this or that problem, although the search is cumbersome, but not surprising. Therefore, when you understand the impact of th

1-Wire Bus Technology and Its Application Abstract: This paper introduces the principle and signal transmission mode of the single bus technology introduced by Dallas, and describes the single bus communication protocol, finally, the single-bus data transmission method is presented based on the application of the si

Intel's QuickPath Interconnect technology is abbreviated as QPI, which translates to fast channel interconnection. In fact its official name is called the Csi,common System interface public interface, used to achieve direct interconnection between chips, rather than connecting to the North Bridge via FSB, directed at AMD's HT bus. Regardless of speed, bandwidth, the bandwidth of each stitch, power consumption and other specifications are beyond the HT

Preface: Otto Event Bus-the communication framework between components for the previous situation between the activity or fragment between the jump value is generally used bundle, intent, etc., from Activitya--- Activityb with StartActivity, with Startactivityforresult () can accept the latter to the former parameters and can do some updates UI and other operations. This is to determine which of the buttons from a jumps to B, set a unique identifier t

Many Ford and Mazda models (approximately since 2003-2004) is equipped with MS CAN bus, in addition to the regular HS CAN Bus. In contrast to HS can bus, MS can bus isn't supported by the stock ELM327, because Ms can is a manufacturer-specific solu tion and located on non-obd2 pins. However, ELM327 is very flexible too

1. the generation and development of CAN Bus Controller Local Network (CAN-Controller Area Network) is a multi-host Local Network launched by Bosch for modern automobile applications, its outstanding performance has been widely used in industrial automation, a variety of control equipment, transportation tools, medical instruments, construction, environmental control and many other departments. The local network of controllers will be popularized in C

Driven:Taking Sdio as an example, it uses Mmc_attach_sdio to match the driver and the device, and its essence is to match the Sdio_bus matching rules. In Mmc_attach_sdio, the MMC first matches a bus, that is, what bus to use for the MMC bus to process host. One thing to understand here is that in Sdio, for SD card memory MMC is a physical device, and for non-SD c

3. Sightseeing bus (Bus.cpp/c/pas)"Problem description"The charming small city of Y City, has n a beautiful scenic spot. Because of the increasing number of visitors, Y City SpecialArranged a sightseeing bus, to provide more convenient transportation services for tourists. The sightseeing bus appears at 1 in the first 0 minutes.Attractions, followed by the 2, 3,

The last 2 weeks have been debugging IIC and SPI bus equipment, here record 2 kinds of bus, in case of forgetting. One IIC Bus The abbreviation of I2c--inter-ic serial Bus is the serial transmission bus between chips introduced by Philips company. It implements duplex synchr

D-bus three-tier architecture D-bus is a message bus system for communication between applications for communication between processes. It is a 3-tier architecture of the IPC system, including: 1, function library Libdbus, for two applications to contact and interactive messages. 2. A message bus daemon based on Libdbu

I believe that most of the fans are not unfamiliar to Alipay, in particular, the net to buy people, now Alipay in everyone's quick to use more and more widely used, and now it can be filled with bus cards, the following for everyone to pay the Po-filled bus card method, want to know how it can be filled with public transport cards to refer to. Note: Mobile phones must be NFC, it is reported that at present

Registering a SDIO driver will call the following function: /*** Sdio_register_driver-register a function driver* @drv: SDIO function Driver*/int sdio_register_driver (struct sdio_driver *drv){Drv->drv.name = drv->name;Drv->drv.bus = sdio_bus_type;Return Driver_register (DRV->DRV);} In fact, very good understanding sdio_driver is actually driver encapsulation, and the driver bus for Sdio_bus_type. The drive of this device is very simple. Look at the s

;) V const V0, 0x7f030024 invoke-virtual {p0, v0} , Lcom/baidu/bus/activity/offlinedatamanageactivity;->setcontentview (I) V4. From 1, only one expandablelistview,id in this layout is expandlistview_all_cities, the corresponding value is 0x7f06009f, Find the place to use this value in Offlinedatamanageactivity:Const V0, 0x7f06009finvoke-virtual {p0, v0}, Lcom/baidu/bus/activity/offlinedatamanageactivi

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