?? ex17.c
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/****************************************************************************/
//
//
// Created by Starlight Embeded Studio
// www.cedn.cn
// If there are any concerns on the code
// go to www.cedn.cn for discussion
//
/****************************************************************************/
#include <stdio.h>
#include "44B.H"
#define SCR_XSIZE 320
#define SCR_YSIZE 240
#define SCR_LINE 40
//***************************************************************************
#define MVAL_USED (0)
#define MVAL (13)
#define INVCLK (0)
#define INVFRAME (0)
#define INVLINE (0)
#define CLKVAL_SL (8) //VCLK=MCLK/(CLKVAL*2) (CLKVAL >= 2)
#define M5D(n) ((n) & 0x1fffff)
unsigned char Bmp[9600];
void Delay(int time)
{
static int DelayLoopCount = 500;
int i,j=0;
for(j=0;j<time;j++)
for(i=0;i<DelayLoopCount;i++);
}
void LcdInit(void)
{
int i;
for (i=0;i<sizeof(Bmp);i++) Bmp[i]=0xF0;
rPCOND=0xaaaa;
rLCDCON1=(2)|(INVFRAME<<2)|(INVLINE<<3)|(INVCLK<<4)|(1<<5)|(MVAL_USED<<7)|(1<<8)|(1<<10)|(CLKVAL_SL<<12);
//下降沿裝載視頻數據,禁止視頻輸出,LCD FIFO清空;行、幀信號取反;
//4位單掃描模式;WDLY=8clk,WLH=8clk,CLKVAL_SL=38
rLCDCON2=(239)|(79<<10)|(10<<21);
//垂直點數為240，水平點數320=(80字)，LINEBLANK=10
rLCDSADDR1= (0x0<<27) | ( ((unsigned int)Bmp>>22)<<21 ) | M5D((unsigned int)Bmp>>1);
// 黑白模式, LCDBANK, LCDBASEU
rLCDSADDR2= (1<<29) | (M5D((unsigned int)Bmp + ((320/8)*(240)))>>1) | (MVAL<<21);
rLCDSADDR3= (320/16) | ( 0<<9 );
rLCDCON1=(1)|(INVFRAME<<2)|(INVLINE<<3)|(INVCLK<<4)|(1<<5)|(MVAL_USED<<7)|(1<<8)|(1<<10)|(CLKVAL_SL<<12);
}
void PortInit(void)
{
// PORT A GROUP
/* BIT 9 8 7 6 5 4 3 2 1 0 */
/* A24 A23 A22 A21 A20 A19 A18 A17 A16 A0 */
/* 0 1 1 1 1 1 1 1 1 1 */
rPCONA = 0x0ff;
rPDATA = 0x0ff;
// PORT B GROUP
/* BIT 10 9 8 7 6 5 4 3 2 1 0 */
/* /CS5 /CS4 /CS3 /CS2 /CS1 nWBE3 nWBE2 /SRAS /SCAS SCLK SCKE */
/* EXT NIC USB IDE SMC NC NC Sdram Sdram Sdram Sdram */
/* 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1 */
rPDATB = 0x7ff;
rPCONB = 0x7ff;
//改動 by yang 2003.5
//PORT C GROUP
//BUSWIDTH=16 */
/* PC15 14 13 12 11 10 9 8 */
/* o o RXD1 TXD1 o o o o */
/* NC NC Uart1 Uart1 NC NC NC NC */
/* 01 01 11 11 01 01 01 01 */
/* PC7 6 5 4 3 2 1 0 */
/* o o o o o o o o */
/* NC NC NC NC SMCALE SMCCLE SMCCE SMCRB*/
/* 01 01 01 01 01 01 01 01 */
rPDATC = 0x0000; //All IO is low
rPCONC = 0xfff45555;
rPUPC = 0x3000; //PULL UP RESISTOR should be enabled to I/O
//PORT D GROUP
/* PORT D GROUP(I/O OR LCD) */
/* BIT7 6 5 4 3 2 1 0 */
/* VF VM VLINE VCLK VD3 VD2 VD1 VD0 */
/* 01 01 01 01 01 01 01 01 */
rPDATD= 0x55;
rPCOND= 0xaaaa;
rPUPD = 0x00;
//These pins must be set only after CPU's internal LCD controller is enable
/////////////////////////////////////////////////////
//PORT E GROUP
/* Bit 8 7 6 5 4 3 2 1 0 */
/* ENDLAN LED3 LED2 LED1 LED0 BEEP RXD0 TXD0 CLKOUT */
/* 00 01 01 01 01 01 10 10 01 */
rPDATE = 0x157;
rPCONE = 0x5528;
rPUPE = 0xff;
//PORT F GROUP
/* Bit8 7 6 5 4 3 2 1 0 */
/* IISCLK IISDI IISDO IISLRCK Input Input Input IICSDA IICSCL */
/* 100 010 010 001 00 01 01 10 10 */
rPDATF = 0x0;
rPCONF = 0x22401a;
rPUPF = 0x1d3;
//PORT G GROUP
/* BIT7 6 5 4 3 2 1 0 */
/* INT7 INT6 INT5 INT4 INT3 INT2 INT1 INT0 */
/* S3 S4 S5 S6 NIC EXT IDE USB */
/* 11 11 11 11 11 11 11 11 */
rPDATG = 0xFF;
rPCONG = 0xFFFF;
rPUPG = 0x00; //should be enabled
rSPUCR=0x7; //D15-D0 pull-up disable
/*定義非Cache區*/
rNCACHBE0 = 0xc0002000;
/*所有的外部硬件中斷為低電平觸發*/
rEXTINT=0x0044;
}
void PutPixel(int x,int y,int c)
{
if(x<SCR_XSIZE && y<SCR_YSIZE)
Bmp[(y)*SCR_LINE+(x)/8]=( Bmp[(y)*SCR_LINE+(x)/8] & ~(0x80>>((x)%8)*1) )
| ( (c)<< ((8-1-((x)%8))*1) );
}
void DrawLine(int x1,int y1,int x2,int y2,int color)
{
int dx,dy,e;
dx=x2-x1;
dy=y2-y1;
if(dx>=0)
{
if(dy >= 0) // dy>=0
{
if(dx>=dy) // 1/8 octant
{
e=dy-dx/2;
while(x1<=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1+=1;e-=dx;}
x1+=1;
e+=dy;
}
}
else // 2/8 octant
{
e=dx-dy/2;
while(y1<=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1+=1;e-=dy;}
y1+=1;
e+=dx;
}
}
}
else // dy<0
{
dy=-dy; // dy=abs(dy)
if(dx>=dy) // 8/8 octant
{
e=dy-dx/2;
while(x1<=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1-=1;e-=dx;}
x1+=1;
e+=dy;
}
}
else // 7/8 octant
{
e=dx-dy/2;
while(y1>=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1+=1;e-=dy;}
y1-=1;
e+=dx;
}
}
}
}
else //dx<0
{
dx=-dx; //dx=abs(dx)
if(dy >= 0) // dy>=0
{
if(dx>=dy) // 4/8 octant
{
e=dy-dx/2;
while(x1>=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1+=1;e-=dx;}
x1-=1;
e+=dy;
}
}
else // 3/8 octant
{
e=dx-dy/2;
while(y1<=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1-=1;e-=dy;}
y1+=1;
e+=dx;
}
}
}
else // dy<0
{
dy=-dy; // dy=abs(dy)
if(dx>=dy) // 5/8 octant
{
e=dy-dx/2;
while(x1>=x2)
{
PutPixel(x1,y1,color);
if(e>0){y1-=1;e-=dx;}
x1-=1;
e+=dy;
}
}
else // 6/8 octant
{
e=dx-dy/2;
while(y1>=y2)
{
PutPixel(x1,y1,color);
if(e>0){x1-=1;e-=dy;}
y1-=1; e+=dx;
}
}
}
}
}
void DrawRect(int x1,int y1,int x2,int y2,int color)
{
DrawLine(x1,y1,x2,y1,color);
DrawLine(x2,y1,x2,y2,color);
DrawLine(x1,y2,x2,y2,color);
DrawLine(x1,y1,x1,y2,color);
}
void Test17()
{
unsigned int i,j;
PortInit();
LcdInit();
printf("\nStart LCD Test!\n");
for (i=0;i<sizeof(Bmp);i++) Bmp[i]=00;
while (1) {
for (i=0,j=0;i<160;i+=5,j+=3) {
DrawRect(i,j,319-i,239-j,1);
Delay(200);
}
for (;i>0;i-=5,j-=3) {
DrawRect(i,j,319-i,239-j,0);
Delay(200);
}
}
printf("\nFinish LCD Test!\n");
}
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