11-mini2440之LCD画圆圈

#define GLOBAL_CLK 1
#include "def.h"
#include "option.h"
#include "2440addr.h"
#include "2440lib.h"
#include "2440slib.h"
#include "mmu.h"
/*
*#define LCD_W35
*
*#elif defined(LCD_W35)
*
*#define LCD_WIDTH 320 宽//在option.h文件里面有他们的定义
*#define LCD_HEIGHT 240 高
*#define LCD_PIXCLOCK 4 时钟参数
*#define LCD_RIGHT_MARGIN 0x44 右边沿
*#define LCD_LEFT_MARGIN 0x04 左边沿
*#define LCD_HSYNC_LEN 0x01 行无效脉冲宽度
*#define LCD_UPPER_MARGIN 10 上边沿
*#define LCD_LOWER_MARGIN 4 下边沿
*#define LCD_VSYNC_LEN 1 列无效脉冲宽度
*#define LCD_CON5 ((1<<11) | (1<<8) | (1<<9) | (1<<0) )
*/
unsigned int lcd_buf[LCD_HEIGHT][LCD_WIDTH]; //24bpp，定义为（unsigned int）32位
void delay(unsigned int times);
void lcd_init(void);
void lcd_brush_background(unsigned int color);
void lcd_draw_circle(unsigned int color, unsigned int radius);
int Main(void)
{
lcd_init();
while (1)
{
lcd_brush_background(0xffffff); //白
delay(3000);
lcd_draw_circle(0x0000ff, 80);
delay(10000);
lcd_brush_background(0x0000ff); //蓝
delay(3000);
lcd_draw_circle(0x00ff00, 80);
delay(10000);
lcd_brush_background(0x00ff00); //绿
delay(3000);
lcd_draw_circle(0xff0000, 80);
delay(10000);
lcd_brush_background(0xff0000); //红
delay(3000);
lcd_draw_circle(0x000000, 80);
delay(10000);
lcd_brush_background(0x000000); //黑
delay(3000);
lcd_draw_circle(0xffffff, 80);
delay(10000);
}
return 0;
}
void delay(unsigned int times)
{
int i;
for (;times > 0; times--)
for (i = 0; i < 400; i++)
;
}
void lcd_init(void)
{
rGPCCON = 0xaaaa02a9; //管脚配置用于LCD
rGPCUP = 0xffffffff;
rGPDCON = 0xaaaaaaaa;
rGPDUP = 0xffffffff;
rGPGCON |= (0x3<<8); //设置GPG4为LCD_PWREN rGPGUP |= (0x1<<4);
rGPGDAT |= (0x1<<4);
rLCDCON1 = (LCD_PIXCLOCK<<8) | (0x3<<5) | (0xd<<1); //设置时钟、LCD类型为TFT、24bpp
rLCDCON2 = (LCD_UPPER_MARGIN<<24) | ((LCD_HEIGHT - 1)<<14) | (LCD_LOWER_MARGIN<<6) | (LCD_VSYNC_LEN);
rLCDCON3 = (LCD_RIGHT_MARGIN<<19) | ((LCD_WIDTH - 1)<<8) | (LCD_LEFT_MARGIN);
rLCDCON4 = LCD_HSYNC_LEN;
rLCDCON5 = 0x0308;
rLCDSADDR1 = (((unsigned int)lcd_buf>>22)<<21) | ((0x1fffff) & ((unsigned int)lcd_buf>>1));
rLCDSADDR2 = 0x1fffff & (((unsigned int)lcd_buf + (LCD_WIDTH * LCD_HEIGHT * 4))>>1);
rLCDSADDR3 = LCD_WIDTH * 32 / 16;
rLCDINTMSK |= 0x3;
rTCONSEL = 0;
rLCDCON5 = rLCDCON5 & (~(1<<3)) | (1<<3); //有效PWREN信号
rLCDCON5 = rLCDCON5 & (~(1<<5)) | (0<<5); //PWREN信号极性不翻转
rLCDCON1 |= 0x1; //开启LCD
}
void lcd_brush_background(unsigned int color)
{
int x, y;
for (x = 0; x < LCD_HEIGHT; x++)
{
for (y = 0; y < LCD_WIDTH; y++)
{
lcd_buf[x][y] = color;
}
}
}
void lcd_draw_circle(unsigned int color, unsigned int radius) {
unsigned int x, y;
unsigned int sqr = radius * radius;
for (x = 0; x < LCD_WIDTH; x++)
{
for (y = 0; y < LCD_HEIGHT; y++)
{
if (((x-120)*(x-120) + (y-160)*(y-160)) <= sqr)
{
lcd_buf[x][y] = color;
}
}
}
}。