📄 lcd.#1
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//#include <C8051F020.H>
#include <lcd.H>
#include <intrins.h>
#include <main.h>
void SYSCLK_Init_LCD(void)
{
WDTCN = 0xde; // disable watchdog timer
WDTCN = 0xad;
//OSCICN |= 0x01; //Use internal oscillator as SYSCLK:4MHz
//while (!(OSCICN & 0x10)) ; // Wait for crystal osc. to settle
SFRPAGE =0x0F;
OSCICN = 0x85; // Use internal oscillator as SYSCLK:4MHz
}
/********************************************************
1. ???:void LCD_Prepare(void)
2. ??:T6963???
3. ??:?
4. ???:?
5. ????:
6. ??????:
7. ????:
8. ????:T6963????
9. ???:???
10.????:2004.11.1
11.?????:Ver 0.1
12.?????:???
13.??????:2004.12.12
14.????:
15.??????:
********************************************************/
void LCD_Prepare(void)
{
/* Initialise the controller */
LCD_Initialise();
/* Clear Graphic RAM */
LCD_Clear_Graphics();
/* Clear Text RAM */
LCD_Clear_Text();
/* Set Text Mode and Graphics Mode On */
LCD_Write_Command(LCD_DISPLAY_MODES_GRAPHICS_ON|LCD_DISPLAY_MODES_TEXT_ON);
/* Set Address Pointer To GRAPHIC Home */
LCD_Write_Data(LCD_GRAPHICS_HOME); /* LSB */
LCD_Write_Data(LCD_GRAPHICS_HOME >> 8); /* MSB */
LCD_Write_Command(LCD_ADDRESS_POINTER_SET);
}
/********************************************
* Function name: initialise *
* Description: Initialise PIC and LCD *
*******************************************/
void LCD_Initialise(void)
{
SFRPAGE=0x0F;
XBR2 = 0x40;
P0MDOUT |= 0x20; //Control the direction of 1# 245. From A to B.
P0 |= 0x20;
/* Set Control Lines to outputs and High */
P4MDOUT |=0xC0;
P4 |=0xC0;
P1MDOUT |=0xC1;
P1 |=0xC1;
/*??LCD*/
P1MDOUT |=0x40;
P1 &=0xBF;
/*??LCD*/
P1MDOUT |=0x80;
P1 &=0x7F;
//delay_ms(2000);
/* Hold Reset Line for 5 SYSTEM CLOCK */ //ADD NEW
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
/*????*/
P1 |=0x80;
/* Set Char Gen Up */
LCD_Write_Command(LCD_CG_ROM_MODE_OR);
/* Set Graphic Home Address */
LCD_Write_Data(LCD_GRAPHICS_HOME);
LCD_Write_Data(LCD_GRAPHICS_HOME >> 8);
LCD_Write_Command(LCD_GRAPHIC_HOME_ADDRESS_SET);
/* Set Graphic Area */
LCD_Write_Data(LCD_GRAPHICS_AREA); /* Width of 32 Chars */
LCD_Write_Data(0x00);
LCD_Write_Command(LCD_GRAPHIC_AREA_SET);
/* Set Text Home Address */
LCD_Write_Data(LCD_TEXT_HOME);
LCD_Write_Data(LCD_TEXT_HOME >> 8);
LCD_Write_Command(LCD_TEXT_HOME_ADDRESS_SET);
/* Set Text Area */
LCD_Write_Data(LCD_TEXT_AREA); /* Width of 32 Chars */
LCD_Write_Data(0x00);
LCD_Write_Command(LCD_TEXT_AREA_SET);
}
/********************************************
* Function name: LCD_Write_Data *
* Description: Write Data to LCD *
*******************************************/
void LCD_Write_Data(unsigned char lwd_data)
{
STA_RST();
SFRPAGE=0x0F;
/* Clear C/D# Set bit /RD */
P1MDOUT |=0x01;
P1 &=0xFE;
P4MDOUT |=0x40;
P4 |=0x40;
/* Set Data Lines to Output */
LCD_DATA_BUS = lwd_data;
XBR2 = 0x40;
P0MDOUT |= 0x20; //Control the direction of 1# 245. From A to B.
P0 |= 0x20;
LCD_DATA_BUS_TRIS |= ALL_OUTPUTS;
/* Clear CE and WR */
P1MDOUT |=0x40;
P1 &=0xBF;
P4MDOUT |=0x80;
P4 &=0x7F;
_nop_();
_nop_();
_nop_();
/* Set CE and WR and C/D*/
P1MDOUT |=0x40;
P1 |=0x40;
P4MDOUT |=0x80;
P4 |=0x80;
P1MDOUT |=0x01;
P1 |=0x01;
/* Set Data Lines to Input */
// P0MDOUT &= 0xDF; //Control the direction of 1# 245. From B to A.
// P0 &= 0xDF;
// P0MDOUT |= 0x20; //Control the direction of 1# 245. From B to A.
// P0 &= 0xDF;
// LCD_DATA_BUS_TRIS &= ALL_INPUTS;
}
/********************************************
* Function name: LCD_Write_Command *
* Description: Write Command to LCD *
*******************************************/
void LCD_Write_Command(unsigned char lwc_data)
{
//unsigned char status;
STA_RST();
SFRPAGE=0x0F;
/* Set C/D,/RD */
P1MDOUT |=0x01;
P1 |=0x01;
P4MDOUT |=0x40;
P4 |=0x40;
/* Set Data Lines to Output */
LCD_DATA_BUS = lwc_data;
XBR2 = 0x40;
P0MDOUT |= 0x20; //Control the direction of 1# 245. From A to B.
P0 |= 0x20;
LCD_DATA_BUS_TRIS |= ALL_OUTPUTS;
/* Clear CE and WR*/
P1MDOUT |=0x40;
P1 &=0xBF;
P4MDOUT |=0x80;
P4 &=0x7F;
_nop_();
_nop_();
/* Set CE and WR */
P1MDOUT |=0x40;
P1 |=0x40;
P4MDOUT |=0x80;
P4 |=0x80;
P1MDOUT |=0x01;
P1 |=0x01;
/* Set Data Lines to Input */
// P0MDOUT &= 0xDF; //Control the direction of 1# 245. From B to A.
// P0 &= 0xDF;
// LCD_DATA_BUS_TRIS &= ALL_INPUTS;
}
/********************************************
* Function name: lcd_clear_graphics *
* Description: Wipe Graphics RAM *
*******************************************/
void LCD_Clear_Graphics(void)
{
unsigned char address_l, address_h;
unsigned int address, address_limit;
/* Set Address Pointer */
address = LCD_GRAPHICS_HOME;
address_l = address & 0xff;
address_h = address >> 8;
LCD_Write_Data(address_l);
LCD_Write_Data(address_h);
LCD_Write_Command(LCD_ADDRESS_POINTER_SET);
address_limit = (LCD_GRAPHICS_HOME + LCD_GRAPHICS_SIZE);
while (address < address_limit)
{
LCD_Write_Command(LCD_DATA_WRITE_AUTO_INCREMENT);//MODIFY: REPLACE THE sequence.
LCD_Write_Data(0x00);
//LCD_Write_Command(LCD_DATA_WRITE_AUTO_INCREMENT);
address = address + 1;
}
}
/********************************************
* Function name: lcd_clear_text *
* Description: Wipe Text RAM *
*******************************************/
void LCD_Clear_Text(void)
{
unsigned char address_l, address_h;
unsigned int address, address_limit;
/* Set Address Pointer */
address = LCD_TEXT_HOME;
address_l = address & 0xff;
address_h = address >> 8;
LCD_Write_Data(address_l);
LCD_Write_Data(address_h);
LCD_Write_Command(LCD_ADDRESS_POINTER_SET);
address_limit = (LCD_TEXT_HOME + LCD_TEXT_SIZE);
while (address < address_limit)
{
LCD_Write_Command(LCD_DATA_WRITE_AUTO_INCREMENT); //MODIFY: REPLACE THE sequence.
LCD_Write_Data(0x00);
address = address + 1;
}
}
/********************************************
* Function name: LCD_Write_Text *
* Description: Write Character to X, Y *
* 0 <= X <= LCD Text Width *
* 0 <= Y <= LCD Text Height *
*******************************************/
void LCD_Write_Text(unsigned char character, unsigned char x, unsigned char y) //Will modify. Address is not correct!!!!!!!!
{
unsigned int address;
address = (y * LCD_TEXT_AREA) + x + LCD_TEXT_HOME; //Will modify. Address is not correct!!!!!!!!
character = character - 0x20; /* Adjust standard ASCII to T6963 ASCII */
LCD_Write_Data(address & 0xff);
LCD_Write_Data(address >> 0x08);
LCD_Write_Command(LCD_ADDRESS_POINTER_SET);
LCD_Write_Data(character);
LCD_Write_Command(LCD_DATA_WRITE_AUTO_INCREMENT);
}
void New_Write_Under_Picture(unsigned char o_x,unsigned char o_y,char cch[2],int reverse) //reverse=1???
{ //???????????????????????????
unsigned int data add;
unsigned char data dat1,dat2,i,j,k=0;
add=(unsigned int)(o_y*0x01E0+o_x*2)+0x01E0;
for(k=0;k<size;k++)
{
if((HANZIKU[k].ch[0]==cch[0])&&(HANZIKU[k].ch[1]==cch[1])) //????????
break;//???????
}
if(k>=(sizeof(HANZIKU)/sizeof(HANZIKU[0])))
return;
for(i=16,j=0;i>0;i--,j+=2)
{
dat1=(unsigned char)add&0xff;
dat2=(unsigned char)((add>>8)&0xff);
LCD_Write_Data(dat1);
LCD_Write_Data(dat2);
LCD_Write_Command(LCD_ADDRESS_POINTER_SET);
if(reverse==0)
LCD_Write_Data(HANZIKU[k].dat[j]);
else if(reverse==1)
LCD_Write_Data(~HANZIKU[k].dat[j]);
LCD_Write_Command(LCD_DATA_WRITE_AUTO_INCREMENT);
if(reverse==0)
LCD_Write_Data(HANZIKU[k].dat[j+1]);
else if(reverse==1)
LCD_Write_Data(~HANZIKU[k].dat[j+1]);
LCD_Write_Command(LCD_DATA_WRITE_AUTO_INCREMENT);
add+=30;
}
}
void STA_RST(void)
{
unsigned char x;
//set_bit(LCD_CONTROL, LCD_CD_BIT);
x = LCD_DATA_BUS;
// LCD_CONTROL |= 0x08; // setbit LCD_CD_BIT;
SFRPAGE=0x0F;
/*????*/
P1MDOUT |=0x01;
P1 |=0x01;
XBR2 = 0x40;
P0MDOUT |= 0x20; //Control the direction of 1# 245. From A to B.
P0 |= 0x20;
LCD_DATA_BUS_TRIS |= ALL_OUTPUTS;
LCD_DATA_BUS |= 0x8B; /*?????*/
_nop_();
_nop_();
_nop_();
/* While BUSY1 and BUSY2 are not 1 */
// while ( (LCD_Read_Status() & (LCD_STATUS_BUSY1 | LCD_STATUS_BUSY2 | LCD_STATUS_DAWRDY)) != (LCD_STATUS_BUSY1 | LCD_STATUS_BUSY2 | LCD_STATUS_DAWRDY)); //MODIFIED!
LCD_DATA_BUS = x;
// P0MDOUT &= 0xDF; //Control the direction of 1# 245. From B to A.
// P0 &= 0xDF;
// LCD_DATA_BUS_TRIS &= ALL_INPUTS;
}⌨️ 快捷键说明
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