resistive touch tablet

Special scratch protection, the surface hardness can reach 4 h Production Process Relatively easy and low cost. Complicated and costly. Application fields 10.4-inch or lower consumer products: pad, mobile phone, or other small-sized products such as pad, on-board phone, or mobile phone. 10.4 or above,

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

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

A long time ago, in the article "optimization of four-wire resistive touch screen drive", the transformation method of the tcc89 platform touch drive was introduced. Practice has proved that after using this method, the touch screen almost never jumps, achieving the expected goal. Recently, yjun found a problem when de

.bmp "/> 3. Source Code analysis of the tq2440 touch screen Driver (because my code annotations are already detailed, I will not analyze them one by one ): #include 4. Transplantation of touch screen drivers For how to port the touch screen driver, see the article 《Transplantation of tq2440 touch screen

Four-wire resistive touch screen sampling filter algorithm, practice proved very useful!void Tsadcstart (void)//own implementation {}bool istsadcover (void)//own implementation {BOOL iRes; return iRes;} U16 Tsadcgetx (void)//implementation {u16 ixphy = 0; return ixphy;} U16 tsadcgety (void)//implementation {u16 iyphy = 0; return iyphy;} void delayms (U32 t)//own implementation {}U32 Tsgetphycoord (

Design of S3C2440 resistive touch screen driver Experiment: When the pen clicks on the touch screen, SecureCRT displays the X and Y coordinates of the contacts; Objective: To test the resistance touch screen driver; Development Board: S3C2440 /** All Rights Reserved (C) 2015, ZJU ** file name: ts. c * Content Abstract

Based on "optimization of four-wire resistive touch screen drive", the sensitivity parameters of handwritten input are adjusted too low, which is better than the original one, as shown in, 72/s can be achieved now. Generally, the writing speed is about 60/s, so it should be able to meet the vast majority of requirements. The CPU usage is slightly higher than the original one, as shown in. In general,

We learned that the XDA developer community has successfully transplanted the Ubuntu Touch operating system to the Sony Tablet Xperia Tablet Z. According to the great god, this is only an experimental transplant, but most functions are available, such as ADB, display, touch screen, Wi-Fi, camera, sound effects, video p

Recently, a website named Giz-China suddenly showed several photos of a 10 inch tablet computer. The untunetbook10.10 operating system was officially launched on the system. According to the website description, the product has not been fully developed yet and supports multi-touch. The tablet is equipped with an IntelAtom processor (1.6 GHz clock speed) and comes

1. Press [WIN] + [X] on the keyboard to open the advanced management tool, and then select [control panel ].2. Select hardware and sound in the control panel ].3. Select tablet settings ].4. Select Display in tablet settings and click calibration.5. Select pen input as prompted ].6. Click the cross position displayed on the screen using the touch pen as prompted.