📄 lcddrv.c
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LCDWriteCmd(LC_CSRW); // CURSOR WRITE COMMAND
LCDWriteData(0x00); // Cursor position low byte
LCDWriteData(0x00); // Cursor position high byte
-----*/
ClrSCR(1);
}
/*===========文本模式操作函数===========*/
/**********************************************************
Name: void Locate(int x, char y) *
Description: Goto X Y coor *
Input: X,Y *
Output: none *
Misc: *
**********************************************************/
void TextLocate(char x, char y)
{
int Address;
unsigned char low;
unsigned char high;
Address = (y * (GUI_LCM_XMAX>>3)) + x;
low = Address & 0xff;
high = Address >> 8;
LCDWriteCmd(LC_CSRW); // CURSOR WRITE COMMAND
LCDWriteData(low); // Cursor position low byte
LCDWriteData(high); // Cursor position high byte
}
/**********************************************************
Name: void Cursor(unsigned char) *
Description: 0-> Cursor off *
1-> Cursor on *
Input: ON/OFF *
Output: none *
Misc: *
**********************************************************/
void Cursor(char cursor)
{
LCDWriteCmd(LC_DISP_ON); // DISPLAY ON COMMAND
if (cursor == 0)
//LCDWriteData(0x14);
//LCDWriteData(0x54);
LCDWriteData(0x14);
else
//LCDWriteData(0x17);
//LCDWriteData(0x56);
LCDWriteData(0x16);
}
/****************************************************
* 显示十进制数 *
* 输入： X ：横坐标。8个半角字符为单位 0-16*
* Y ：列坐标。纵向1个像素为单位 0-64*
* Num ：需要显示的数字 *
* Bit ：需要显示的数字的位数 *
****************************************************/
void DEC_Num_Disp(char X,char Y,unsigned int Num,char Bit)
{
char i = 0;
char LCD_Buff[3] = {0};
if (Bit>3)
{
Bit = 3;
}
for (i=0;i<Bit;i++)
{
LCD_Buff[i] = Num%10;
Num = Num/10;
}
TextLocate(X,Y);
LCDWriteCmd(LC_MWRITE);
for (i=0;i<Bit;i++)
{
LCDWriteData((LCD_Buff[Bit-1-i]+0x30));
}
}
/****************************************************
* 显示带小数点的数 *
* 输入： X ：横坐标。8个半角字符为单位 0-16*
* Y ：列坐标。纵向1个像素为单位 0-64*
* Num ：需要显示的数字 *
* Bit ：需要显示的数字的位数 *
* Point ：小数点所在的位 *
****************************************************/
void PointNum_Disp(char X,char Y,unsigned int Num,char Bit,char Point)
{
char i = 0;
char LCD_Buff[4] = {0};
for (i=0 ; i<Bit ; i++) //依次把数据写入缓冲区中
{
if(i==Point) //插入小数点
{
LCD_Buff[i] = 0xfe;
i++;
}
LCD_Buff[i] = Num%10;
Num = Num/10;
}
TextLocate(X,Y);
LCDWriteCmd(LC_MWRITE);
for (i=0 ; i<Bit ; i++) //依次将缓冲区的数据显示
{
LCDWriteData(LCD_Buff[Bit-1-i]+0x30);
}
}
/*********************************************************************************
Name: void LCDWriteString(char X,char Y,char *ptr) *
Description: Write a string to the LCD *
Input: Address *
String *
Output: none *
Misc: String must be ended by \0 *
*********************************************************************************/
void LCDWriteString(char X,char Y,char *ptr)
{
//int i;
TextLocate(X,Y);
LCDWriteCmd(LC_MWRITE); // LCD WRITE MEMORY
while(*ptr != 0x00)
{
LCDWriteData(*ptr++);
}
}
/********************************************************************
Name: UseTxtFill(char x1, char y1, char x2, char y2, char FillMode)*
Description: Use Txt mode fill appointed area *
Input: Appointed area adress *
Mode of fill block. 1--fill 0--clear *
Output: none *
Misc: *
********************************************************************/
void UseTxtFill(char x1, char y1, char x2, char y2, char FillMode)
{
unsigned int startAddr=0x0000;
char LSBa, MSBa,len,wid;
startAddr = 40*y1+x1;
for(wid=0;wid<(y2-y1);wid++)
{
LSBa=startAddr&0xFF;
MSBa=(startAddr>>8)+0x10;
LCDWriteCmd(LC_CSRW); //send cursor address
LCDWriteData(LSBa);
LCDWriteData(MSBa);
LCDWriteCmd(LC_CSRDIR1); //set move direction of cursor
LCDWriteCmd(LC_MWRITE); //send disp data
for(len=0;len<=(x2-x1);len++)
{
LCDWriteData(FillMode);
}
startAddr+=40;
}
}
/*===========图形模式操作函数===========*/
/*********************************************************************************
*********************************************************************************/
void GraphicLocate(int X, char Y)
{
char LSB,MSB;
//StartAddr = ()+
}
/*********************************************************************************
Name: void LCDDisplay_bmp(int x,char y,int length,char Width,const char *dat) *
Description: Write a Bit-Map to LCD *
Input: Address *
BMP Size(Width & Length) *
BMP Data *
Output: none *
Misc: String must be ended by \0 *
*********************************************************************************/
void LCDDisplay_bmp(int x,char y,int length,char Width,const char *dat)
{
unsigned int startAddr=0x0000;
char LSBa, MSBa,len,wid;
//startAddr = 40*y+x + 0x2600;
startAddr = 40*y+x;
LCDWriteCmd(LC_CSRDIR1);
for(wid=0;wid<Width;wid++)
{
LSBa=startAddr&0xFF;
MSBa=(startAddr>>8);
LCDWriteCmd(LC_CSRW);
LCDWriteData(LSBa);
LCDWriteData(MSBa);
LCDWriteCmd(LC_MWRITE);
for(len=0;len<(length>>3);len++)
{
LCDWriteData(*(dat++));
}
startAddr+=40;
}
}
/**********************************************************
Name: void GPART(void) *
Description: Clear appointed area of Graphic Screen *
Input: Appointed area adress *
Mode of fill block. 1--fill 0--clear *
Output: none *
Misc: *
**********************************************************/
void GPART(int x1, char y1, int x2, char y2, char FillMode)
{
unsigned int startAddr=0x0000;
char LSBa, MSBa,len,wid;
///startAddr = 40*y1+(x1>>3) +0x2600;
startAddr = 40*y1+(x1>>3);
for(wid=0;wid<=(y2-y1);wid++)
{
LSBa=startAddr&0x00FF;
MSBa=(startAddr>>8);
LCDWriteCmd(LC_CSRW); //send cursor address
LCDWriteData(LSBa);
LCDWriteData(MSBa);
LCDWriteCmd(LC_CSRDIR1); //set move direction of sursor
LCDWriteCmd(LC_MWRITE); //send disp data
for(len=0;len<=((x2-x1)>>3);len++)
{
LCDWriteData(FillMode);
}
startAddr+=40;
}
}
/**********************************************************
Name: void GPix(int x, int y, unsigned char stat) *
Description: Disp a pixel on screen *
Input: x,y---Position of pixel *
state:1--Draw a pixel; 0--Clear a pixel *
Output: none *
Misc: *
**********************************************************/
void GPix(int x, char y, char state)
{
unsigned int Address;
unsigned char Offset,low,high,byte;
//Address = (y * 40) + (x>>3) + 0x2600;
Address = (y * 40) + (x>>3);
Offset = x - ((x>>3)<<3);
low = Address & 0xff;
//high =(Address>> 8) + 0x10;
high =(Address>> 8);
LCDWriteCmd(LC_CSRW); // CURSOR WRITE COMMAND
LCDWriteData(low); // Cursor position low byte
LCDWriteData(high); // Cursor position high byte
LCDWriteCmd(LC_MREAD); // READ LCD MEMORY COMMAND
byte = LCDReadData(); // Read data at position
if (state != 0)
byte |= (0x80 >> Offset);
else
byte &= (~(0x80 >> Offset));
LCDWriteCmd(LC_CSRW); // CURSOR WRITE COMMAND
LCDWriteData(low); // Cursor position low byte
LCDWriteData(high); // Cursor position high byte
LCDWriteCmd(LC_MWRITE); // LCD WRITE MEMORY COMMAND
LCDWriteData(byte); // Write byte
}
/*************************************************************
Name: void GBox(int x1, char y1, int x2, char y2,char state)*
Description: draw a box *
Input: x1\y1\x2\y2--position of box *
Output: state:1--Draw; 0--Clear *
Misc: *
*************************************************************/
void GBox(int x1, char y1, int x2, char y2,char state)
{
int i;
for (i=x1;i<=x2;i++)
GPix(i,y1,state); // Top line
for (i=x1;i<=x2;i++)
GPix(i,y2,state); // Bottom line
for (i=y1;i<=y2;i++)
GPix(x1,i,state); // Left side
for (i=y1;i<=y2;i++)
GPix(x2,i,state); // Right side
}
/**********************************************************
Name: void TextBox(int x, char y, int length,char state) *
Description: *
Input: Text cursor! *
Output: none *
Misc: *
**********************************************************/
void TextBox(int x, char y, int length,char state)
{
GBox(((x-1)<<3),((y-1)<<3),(((length<<3)+((x-1)<<3))-2),(y*12),state);
}
/**********************************************************
Name: void GLine(int x1, char y1, int x2, char y2)
Description: draw a line
Input: none
Output: none
Misc:
**********************************************************/
void GLine(int x1, char y1, int x2, char y2,char state)
{
int dx,dy,stepx,stepy,fraction;
dy = y2 - y1;
dx = x2 - x1;
if (dy < 0)
{
dy = -dy;
stepy = -1;
}
else
{
stepy = 1;
}
if (dx < 0)
{
dx = -dx;
stepx = -1;
}
else
{
stepx = 1;
}
dy <<= 1;
dx <<= 1;
GPix(x1,y1,state);
if (dx > dy)
{
fraction = dy - (dx >> 1);
while (x1 != x2)
{
if (fraction >= 0)
{
y1 += stepy;
fraction -= dx;
}
x1 += stepx;
fraction += dy;
GPix(x1,y1,state);
}
}
else
{
fraction = dx - (dy >> 1);
while (y1 != y2)
{
if (fraction >= 0)
{
x1 += stepx;
fraction -= dy;
}
y1 += stepy;
fraction += dx;
GPix(x1,y1,state);
}
}
}
/*
uchar fnST01(void) // 状态位STA1,STA0判断（读写指令和读写数据）
{
uchar i,status;
for(i=10;i>0;i--)
{
ReadStatus;
status = LCMCW;
ReadOK;
if((status & 0x03) == 0x03)
break;
}
return i; // 若返回零，说明错误
}
uchar fnST2(void) // 状态位ST2判断（数据自动读状态）
{
uchar i,status;
for(i=10;i>0;i--)
{
ReadStatus;
status = LCMCW;
ReadOK;
if((status & 0x04) == 0x04)
break;
}
return i; // 若返回零，说明错误
}
uchar fnST3(void) // 状态位ST3判断（数据自动写状态）
{
uchar i,status;
for(i=10;i>0;i--)
{
ReadStatus;
status = LCMCW;
ReadOK;
if((status & 0x08) == 0x08)
break;
}
return i; // 若返回零，说明错误
}
uchar fnST6(void) // 状态位ST6判断（屏读/屏拷贝状态）
{
uchar i,status;
for(i=10;i>0;i--)
{
ReadStatus;
status = LCMCW;
ReadOK;
if((status & 0x40) == 0x40)
break;
}
return i; // 若返回零，说明错误
}
uchar fnPR1(uchar uCmd,uchar uPar1,uchar uPar2) // 写双参数的指令
{
if(fnST01() == 0)
return 1;
WriteData;
LCMDW = uPar1;
WriteOK;
if(fnST01() == 0)
return 2;
WriteData;
LCMDW = uPar2;
WriteOK;
if(fnST01() == 0)
return 3;
WriteCmd;
LCMCW = uCmd;
WriteOK;
return 0; // 返回0成功
}
uchar fnPR11(uchar uCmd,uchar uPar1) // 写单参数的指令
{
if(fnST01() == 0)
return 1;
WriteData;
LCMDW = uPar1;
WriteOK;
if(fnST01() == 0)
return 2;
WriteCmd;
LCMCW = uCmd;
WriteOK;
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