ucos II+ucGUI+s3c2410+LCD+触摸屏整合

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 tasks's 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) = 0x1f
(LINEVAL_TFT << 14) | //* LINEVAL_TFT : 480 - 1
(VFPD << 6) | //* VFPD : ((11-1)&0xff) = 0xa
(VSPW << 0) ; //* VSPW : ((2-1) &0x3f) = 0x1
s2410LCD->LCDCON3 = (HBPD << 19) | //* HBPD : ((88-1)&0x7f)
(HOZVAL_TFT << 8) | //* HOZVAL_TFT : 800 - 1
(HFPD << 0) ; //* HFPD : ((40-1)&0xff)
s2410LCD->LCDCON4 = (MVAL << 8) | //* MVAL : 13
(HSPW << 0) ; //* HSPW : ((128-1)&0xff)
s2410LCD->LCDCON5 = (0 << 12) | // BPP24BL : LSB valid
(1 << 11) | // FRM565 MODE : 5:5:5:1 Format
(0 << 10) | // INVVCLK : VCLK Falling Edge
(1 << 9) | // INVVLINE : Inverted Polarity
(1 << 8) | // INVVFRAME : Inverted Polarity
(0 << 7) | // INVVD : Normal
(0 << 6) | // INVVDEN : Normal
(0 << 5) | // INVPWREN : Normal
(0 << 4) | // INVENDLINE : Normal
(1 << 3) | // PWREN : Disable PWREN
(0 << 2) | // ENLEND : Disable LEND signal
(0 << 1) | // BSWP : Swap Disable
(1 << 0) ; // HWSWP : Swap Enable
s2410LCD->LCDSADDR1 = ((FRAMEBUF_DMA_BASE >> 22) << 21) |
((M5D(FRAMEBUF_DMA_BASE >> 1)) << 0);
s2410LCD->LCDSADDR2=M5D( (FRAMEBUF_DMA_BASE+(LCD_XSIZE_TFT*LCD_YSIZE_TFT*2))>>1 );
s2410LCD->LCDSADDR3=(((LCD_XSIZE_TFT-LCD_XSIZE_TFT)/1)<<11)|(LCD_XSIZE_TFT/1);
s2410LCD->LCDINTMSK|=(3); // MASK LCD Sub Interrupt
s2410LCD->LPCSEL&=(~7); // Disable LPC3600
s2410LCD->TPAL=0; // Disable Temp Palette
s2410LCD->LCDCON1 |= 1;
}
其中，部分变量、常量定义如下：
#define LCD_XSIZE_TFT (800)
#define LCD_YSIZE_TFT (480)
#define HOZVAL_TFT (LCD_XSIZE_TFT-1)
#define LINEVAL_TFT (LCD_YSIZE_TFT-1)
#define MVAL (13)
#define MVAL_USED (1)
#define EACH_FRAME (0)
//STN/CSTN timing parameter for LCBHBT161M(NANYA)
#define WLH (3)
#define WDLY (3)
#define LINEBLANK (1 &0xff)
#define VBPD ((32-1)&0xff)
#define VFPD ((11-1)&0xff)
#define VSPW ((2-1) &0x3f)
#define HBPD ((88-1)&0x7f)
#define HFPD ((40-1)&0xff)
#define HSPW ((128-1)&0xff)
#define CLKVAL_TFT (0)
#define M5D(n) ((n) & 0x1fffff)
#define SCREEN_WIDTH 800 //800
#define SCREEN_HEIGHT 480 //480
#define FRAMEBUF_DMA_BASE (0x35000000)
U16* pLCDBuffer565=(U16*)FRAMEBUF_DMA_BASE;
3）填写配置文件LCDConf.h
#define LCD_XSIZE (800) /* X-resolution of LCD, Logical coor. */
#define LCD_YSIZE (480) /* Y-resolution of LCD, Logical coor. */
#define LCD_BITSPERPIXEL (16)
#define LCD_CONTROLLER 1
#define LCD_SWAP_RB_0 1
2．触摸屏驱动：