基于ARM触摸屏的实现

UCOSIIUCGUIS3C2410LCD触摸屏整合作者佚名来源不详录入ADMIN更新时间2008818145754点击数240【字体】环境ADS22ARM9S3C2410注意由于编译器（ADS12或22）对全局变量初始化为0的不完全支持，有时必须手动初始化为0，切记一、UCOSII移植到ARM9S3C2410可从官网下载移植代码，基本无需改动。在OS_CPU_AS中的函数UCOS_IRQHANDLER中的BLOSINTENTER和BLC_IRQHANDLER之间插入如下代码（见邵贝贝，第2版，第104页的说明L3184）LDRR0,OSINTNESTINGLDRBR0,R0CMPR0,1BNEXXLDRR0,OSTCBCURLDRR1,R0STRSP,R1STORESPINPREEMPTEDTASKSSTCBXX二、UCGUI390移植到ARM9S3C24101LCD驱动1）画点函数对DM2410实验板上的LCD，左上为原点（0，0），函数如下VOIDLCD2410_SETPIXELINTXP,INTYP,U16COLOR,INTDINDEXPLCDBUFFER565SCREEN_WIDTHYPXPCOLOR为了达到更快的显示速度，别忘了开启CACHE2）LCD控制器的初始化，对2410函数如下INTLCD2410_INITVOIDIFISLCDINITINITLCDPORTINITLCDREGSISLCDINIT1RETURN0RETURN1VOIDINITLCDPORTVOID/LCDPORTINITIALIZES2410IOPGPCUP0XFFFFFFFFS2410IOPGPCCON0XAAAAAAAAS2410IOPGPDUP0XFFFFFFFFS2410IOPGPDCON0XAAAAAAAAS2410IOPGPGCONS2410LCDLCDSADDR3LCD_XSIZE_TFTLCD_XSIZE_TFT/1LCDINTMSK|3/MASKLCDSUBINTERRUPTS2410LCDLPCSEL/DISABLELPC3600S2410LCDTPAL0/DISABLETEMPPALETTES2410LCDLCDCON1|1其中，部分变量、常量定义如下DEFINELCD_XSIZE_TFT800DEFINELCD_YSIZE_TFT480DEFINEHOZVAL_TFTLCD_XSIZE_TFT1DEFINELINEVAL_TFTLCD_YSIZE_TFT1DEFINEMVAL13DEFINEMVAL_USED1DEFINEEACH_FRAME0/STN/CSTNTIMINGPARAMETERFORLCBHBT161MNANYADEFINEWLH3DEFINEWDLY3DEFINELINEBLANK13）填写配置文件LCDCONFHDEFINELCD_XSIZE800/XRESOLUTIONOFLCD,LOGICALCOOR/DEFINELCD_YSIZE480/YRESOLUTIONOFLCD,LOGICALCOOR/DEFINELCD_BITSPERPIXEL16DEFINELCD_CONTROLLER1DEFINELCD_SWAP_RB_012触摸屏驱动触摸屏驱动计算出触摸屏的坐标（X，Y），对DM2410实验板上的触摸屏，左下为原点，但不一定是（0，0）。两个函数1）设置中断向量，开中断VOIDSETTSINTERRUPTVOIDRADCDLY50000RADCCON1PLCD_HLPCONTEXTPAFONTGUI_DEFAULT_FONTPCONTEXTPCLIPRECT_HLPCONTEXTPENSIZE1PCONTEXTDRAWMODEGUI_DRAWMODE_NORMAL/ADDPCONTEXTTEXTMODEGUI_TEXTMODE_NORMAL/ADDPCONTEXTTEXTALIGNGUI_TA_LEFT|GUI_TA_TOP/ADDPCONTEXTAA_HIRESENABLE0/ADD/VARIABLESINWMMODULE/IFGUI_WINSUPPORTPCONTEXTHAWINWM_GETDESKTOPWINDOWENDIF/VARIABLESINGUI_AAMODULE/PCONTEXTAA_FACTOR3LCD_SETBKCOLORGUI_DEFAULT_BKCOLORLCD_SETCOLORGUI_DEFAULT_COLOR修改如下函数为（位于GUIALLOCC）VOIDGUI_ALLOC_INITVOIDGUI_ALLOCNUMUSEDBYTES0MEMSET/SELFABLOCK0SIZE1OSTCBPRIOVOIDGUI_X_WAITEVENTVOIDINT8UERRVOIDOSMBOXPENDEVENTMBOX,0,VOIDGUI_X_SIGNALEVENTVOIDVOIDOSMBOXPOSTEVENTMBOX,VOID1VOIDGUI_X_INITOSVOIDDISPSEMOSSEMCREATE1EVENTMBOXOSMBOXCREATEVOID0VOIDGUI_X_EXECIDLEVOIDGUI_X_DELAY1VOIDGUI_X_INITVOIDSETTSINTERRUPT/此处接入触摸屏的中断设置GUI_TOUCH_SETDEFAULTCALIBRATION/用默认值校准触摸屏四、与触摸屏有关的函数1、4个功能函数VOIDGUI_TOUCH_X_ACTIVATEXVOID/空VOIDGUI_TOUCH_X_ACTIVATEYVOID/空INTGUI_TOUCH_X_MEASUREXVOIDRETURNTX/返回触摸坐标XINTGUI_TOUCH_X_MEASUREYVOIDRETURNTY/返回触摸坐标Y2、触摸屏校准任务（进程，来自示例程序TOUCH_CALIBRATEC）IFTOUCH_NEED_CALIBRATESTATICCONSTCHAR_ACPOS“UPPERLEFTPOSITION“,“LOWERRIGHTPOSITION“STATICVOID_WAITFORPRESSEDSTATEINTPRESSEDGUI_PID_STATESTATE/WAITUNTILTOUCHISPRESSED/DOGUI_TOUCH_GETSTATEIFSTATEPRESSEDPRESSEDBREAKGUI_DELAY100WHILE1STATICVOID_DISPSTRINGCENTEREDCONSTCHARPSTRINGGUI_RECTRECTRECTX0RECTY00RECTX1LCD_GETXSIZE1RECTY1LCD_GETYSIZE1GUI_DISPSTRINGINRECTPSTRING,STATICVOID_GETPHYSVALUESINTLOGX,INTLOGY,INTPPHYSX,INTPPHYSY,CONSTCHARPSTRINGCHARACTEXT“PRESSHERE“GUI_RECTRECTINTFONTSIZEY,ALIGNFONTSIZEYGUI_GETFONTSIZEYGUI_CLEARGUI_SETCOLORGUI_BLACK_DISPSTRINGCENTERED“RUNTIMECALIBRATION,N“PLEASETOUCHTHESCREENN“ATTHECENTEROFTHERING“/ASKUSERTOPRESSTHETOUCH/CALCULATETHERECTANGLEFORTHESTRING/RECTY0LOGYFONTSIZEYRECTY1LOGYFONT