validity sensor driver

Transferred from: http://blog.163.com/ac952_hmz/blog/static/947915132012101287284/ Drivers, three-point hardware, three-point format, four-point software.In mobile phones, we often refer to the camera directly as sensor, the Spreadtrum platform sensor is like LCD, is already very mature. Follow the previous pattern, first introduce the basic knowledge of hardware.I. Types of sensorIn fact, this for the

Recently used in the temperature and humidity sensor, AM2305 drive, single bus, on the power of at least 2S to read temperature and humidity, temperature accuracy is high, like DS18B20, data with the checksum, will not appear ds18b20, and the timing is not high /************************************************************************************************************* * FileName: am2305.c * function: STM32 AM2305 high precision temperature and hu

The last time we talked about all the sensor modules read and write in the sensors controller and encapsulate the driver.Let's take a look at CC2650STK's schematic diagram.Dio_0~dio_7 marked with a red box, dio_23~dio_30 can be controlled by the sensor controller. The latter few are temporarily used, and the front includes an I²c interface, and two button button pins, as well as a reed reed tube pin. The re

://wenku.baidu.com/link?url=r_w8dizlv8cxd1s-6cml3n3kztrm9q3xegp9o6a3jjs86i_0- Mnsob8hyjvgks7c18y7upiphhwb7868g-8nm8cki4_bedkv31pf-o4z6fyJammy's code uses a lot of preprocessing, which makes code in code very readable and well worth learning, but there's a small error in the program. And Jammy was written in 09, many of the device's registrations are not registered in the new kernel.The second place is a small white predecessor:Http://blog.chinaunix.net/uid-25014876-id-59416.htmlNot much to say,

1. Sensor Development Block Diagram650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M00/87/12/wKiom1fSl5mwA2ESAABzoRmaSVU881.jpg "title=" Sens001.jpg "width=" "height=" 321 "border=" 0 "hspace=" 0 "vspace=" 0 "style=" width:500px;height:321px; "alt=" Wkiom1fsl5mwa2esaabzormasvu881.jpg "/>2. Device driver loading and hardware system configurationCD mpp/ko# default online./load3518e-a-

I. Summary Bma220 gravity sensor driver involves three files: bma220.c bma220.h bma220_driver.c. Bma220.c is an API that contains the bma220 driver. bma220.h contains the bma220 Register address, and bma220_driver.c is the I2C device driver of bma220. Here we will analyze and modify the bma220_driver.c. Ii. bma220_dri

Recently used temperature and humidity sensor, AM2305 drive, single bus, after power on at least a delay of 2S to read temperature and humidity, temperature accuracy is high, with the same as DS18B20, data with calibration, will not appear ds18b20, and timing requirements are not high /************************************************************************************************************* * File name: am2305.c * Function: STM32 AM2305 high pre

This requires the driver to install the Nuvoton nct6795.Because the MSI Motherboard uses the Nuvoton chip, the driver on GitHub link is as follows:Https://github.com/groeck/nct6775.git$git Clone Https://github.com/groeck/nct6775.gitTo the local directory, and then into the directory$make$sudo make InstallFinally, add the nct6775 module to the/etc/modules.$sudo Vi/etc/modulesOf course, you can also nano.Afte

multiplexing to reduce the number of data pin method, the following two images (all from the TVP5158 data sheet) to illustrate, are two video signal and four-channel video signal (internal synchronization format, To embed the sync signal, refer to the multiplexing mode of the BT656 format: note: The middle clock seems a bit wrong, two D1 pixel mux mode clock should be 54MHz.Line Mux:(from DM8168 TRM) is a two-way video signal in line MUX mode.(4) VIP Driverhttp://blog.csdn.net/crushonme/article