用UCB1400芯片实现掌上电脑中触摸屏驱动及其取点优化方法.pdf

27 4 Vol.27No.4 200412 Chinese Journal of Electron Devices Dec. 2004 Using UCB1400 Driving HPCs Touch Screen and Data Optimization - , - , D I A O K ou s uo M I A O A i g uo H U Che n (N at ional A S I C Sy ste m E ngi neering Center , S ou theast Univ ers ity , N anj ing 210096, China) Abstract The article introduces the touch screens theory characters and application cases The: , . functions, working odels and two ADC odels of the UCB1400 chip are described. The solution for driving Philips and Sonys touch screens in Linux-based hand-hold ter inals is given with ethods of data opti ization and generating sti ulant ouse events. ey words touch screen UCB: ; 1400;point sa pling ethod data opti ization ouse events; ; EEACC:7250;7260 UCB1400 刁扣锁, 缪爱国, 胡　晨 (, 210096) :,UCB1400 ADC UCB1400 Linux Philips Sony :;UCB1400; ; ; : TP368. 33;TP391.43 :A: 1005-9490(2004)04-0719-05 ,, PDA 1 , , : , 1 TFT -LCD 1) , , , : 2004-07-26 :( 1977-) ,, , ,dkswolf@yeah.net 72　0　　　　　　　　　　　　　　　　　　　　电　子　器　件　　　　　　　　　　　　　　　　　　27 卷 , , , 1 , , , , , , , ,