ucosII+ucGUI+s3c2410+LCD+触摸屏整合..doc

ucos II+ucGUI+s3c2410+LCD+触摸屏整合 ????? 环境：ads2.2＋ARM9 ＋s3c2410?????? 注意：由于编译器（ads1.2或2.2）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、ucos II移植到ARM9 s3c2410 ?????? 可从官网下载移植代码，基本无需改动。 ?????? 在os_cpu_a.s中的函数UCOS_IRQHandler中的bl OSIntEnter和bl C_IRQHandler之间插入如下代码（见邵贝贝，第2版，第104页的说明：L3.18(4) ）：??????? ldr r0, =OSIntNesting??????? ldrb r0,[r0]??????? cmp r0,#1??????? bne XX??????? ldr r0,=OSTCBCur??????? ldr r1,[r0]??????? str sp,[r1]???????????????? ; store sp in preempted taskss TCB??????? ????????????? XX???????? 二、ucGui 390移植到ARM9 s3c2410?????? 1. Lcd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：void LCD2410_SetPixel(int xp, int yp, U16 color, int dindex){?????? *(pLCDBuffer565 + SCREEN_WIDTH*yp + xp) = color; }为了达到更快的显示速度，别忘了开启Cache！！！?????? 2）LCD控制器的初始化，对2410函数如下：int LCD2410_Init(void){?????? if(!isLcdInit)?????? {????????????? InitLcdPort();????????????? InitLcdRegs();????????????? ????????????? isLcdInit = 1;????????????? return 0;?????? }?????? return 1;}?void InitLcdPort(void){???? // LCD port initialize.??? s2410IOP-GPCUP = 0xFFFFFFFF;??? s2410IOP-GPCCON = 0xAAAAAAAA;??? s2410IOP-GPDUP = 0xFFFFFFFF;??? s2410IOP-GPDCON = 0xAAAAAAAA;??? s2410IOP-GPGCON = ~(3 8);???????????????? /* Set LCD_PWREN as output? */??? s2410IOP-GPGCON |= (1 8);??? s2410IOP-GPGDAT |= (1 4);???????????????? //* Backlight ON??? }void InitLcdRegs(void){?????? s2410LCD-LCDCON1?? =?? (CLKVAL_TFT 8) |?? //* VCLK = HCLK / ((CLKVAL + 1) * 2) - About 7 Mhz ??????????????????????????? (EACH_FRAME 7) |?? //* 0 : Each Frame?????????????????????????????????? ??????????????????????????? (3?????????? 5) |?? // TFT LCD Pannel?????????????????????????????????? ??????????????????????????? (12????????? 1) |?? //Y: // 16bpp Mode????????????????????????????????????? ??????????????????????????? (0?????????? 0) ;?? // Disable LCD Output???????????????????????????? ??? s2410LCD-LCDCON2?? =?? (VBPD??????? 24) |?? //* VBPD????????? : ((32-1)0xff) =