lenovo touch screen not working

Reference: http://blog.chinaunix.net/uid-22174347-id-1786941.html ========================================================== ============================ Development Environment Compilation System: fedora9 Compiler: arm-linux-4.4.3 Master chip: S3C2440 Development Board: mini2440 ========================================================== ============================ I. Working Principle of resistive touch s

Today try to open their own back cover to dismantle the line, sure enough this method is kingly. In the search Raiders saw the following post, I think the summary is good, hereby reproduced here:white stone 2015-05-22 10:07 usage Reviews There is always one for you: Lenovo Miix2 8-inch version of the touch screen failure of the various solutionsPrefaceNow the col

Lenovo's projection phone can project touch screen to any surfaceSmart machines with built-in projectors-well, there's really only two of Samsung's--so far not really popular, but Lenovo thinks it finally found this combination of the right use case: Project a touch screen o

Address: http://www.dzsc.com/data/html/2010-11-8/86953.html Abstract: This paper briefly introduces the structure and working principle of the touch screen. Taking the touch screen control chip ADS7843 of Burr-Brown as an example, it introduces the typical circuits and opera

Touch-screen Initialization1. Set the ad conversion clockAdccon (12. Set Interrupt Masking2.1.TC interrupts, which can occur when a finger touches or moves away2.2.ADC interrupt, interrupt generated when ADC conversion is completeEnable TC Interrupt, shielded ADC interrupt, poll to see ADC interruptIntmsk ~ (1Intsubmask ~ (13. Enter the wait interrupt mode (press)ADCTSC 0xd3TC Interrupt Handling1. Start XY

First, touch eventsOntouchstart, Ontouchmove, Ontouchend, OntouchcancelCurrently mobile browsers support these 4 touch events, including ie. Because the touchscreen also supports MouseEvent, their order is important to note: Touchstart→mouseover→mousemove→mousedown→mouseup→click1Apple introduced touch event api,android in iOS 2.0 and is catching up to this fact s

Recent news shows that because of Microsoft's efforts to promote the Windows 8 system, the future of the new notebook products will be equipped with touch screen to bring a better sense of use. And for PC manufacturers, the original old model update configuration and then back to the market, is undoubtedly a time-saving method, which Lenovo IdeaPad Z400touch is s

With the advent of summer vacation, notebook computers will also usher in a peak sales, especially the students will enter the University of friends, are looking for a low-cost but also has a mainstream configuration and performance of students. Lenovo's recently launched IdeaPad U310 Touch seems like a good choice, with a MacBook-like metal fuselage design, with a touchscreen and Windows 8 system, and a good keyboard feel to the needs of students ' f

suddenly become transparent, the light transmittance is 80%, and the light transmittance decreases when the light transmittance goes down,To 300, the thickness increased to 80%. Ito is the main material used by the touch screen and capacitive touch screen of all resistor technology. In fact, the

Reference: http://blog.chinaunix.net/uid-22174347-id-1786941.html ========================================================== ============================ Development Environment Compilation System: fedora9 Compiler: arm-linux-4.4.3 Master chip: S3C2440 Development Board: mini2440 ========================================================== ============================ I. Working Principle of resistive touch s

The 4K resolution is not just a new favorite in the television field, it is also invading the computer field. Following Toshiba, Lenovo joined the competition for 4K laptops, offering a 15.6-inch, 3840*2160-resolution screen Y50 touch 4 K. In line with the previous Y50 positioning, Y50 touch 4K is a high-end game in th

Capacitive touch screen and traditional resistive touch screenDifferences. When a resistive touch screen is working, only one touch point can be judged at a time. If there are more than

Preface What is the difference between a touch-screen website and a traditional pc-side website? The change in interaction methods is the first. For exampleClick EventIt is so powerless under the touch screen device. Most interactions on mobile phones are implemented through touch