?? display.c
字號:
/*
KS0108 128*64 LCD C語言驅動
LCD引腳定義
1---GND
2---VCC
3---VLCD
4---D/I
5---R/W
6---E
7到14 D0-D7
15--CS1
16--CS2
17--RESET
18--VEE
19--SW
20--NC
*/
#include <iom32v.h>
#include <macros.h>
#include "delay.h"
unsigned char CurOffset,CurRow,CurPage,CurCol;
#define uchar unsigned char
/* 常量定義 */
#define LCD_STATUS_BUSY 0x80
#define START_LINE0 0xc0
#define DISPLAY_ON 0x3f
#define DISPLAY_OFF 0x3e
#define PARA1 0x40
//#define BIT(x) (1<<x)
//PORTA---數據口 PORTB----控制口
volatile unsigned char *LCD_DIR_PORT = &DDRA;
volatile unsigned char *LCD_IP_PORT = &PINA;
volatile unsigned char *LCD_OP_PORT = &PORTA;
volatile unsigned char *LCD_EN_PORT = &PORTB;
volatile unsigned char *LCD_CS2_PORT = &PORTC;
volatile unsigned char *LCD_CS1_PORT = &PORTC;
volatile unsigned char *LCD_RW_PORT = &PORTC;
volatile unsigned char *LCD_DI_PORT = &PORTC;
char LCD_EN_BIT = BIT(4);
char LCD_CS2_BIT = BIT(3);
char LCD_CS1_BIT = BIT(2);
char LCD_RW_BIT = BIT(5);
char LCD_DI_BIT = BIT(4);
#define SET_LCD_E *LCD_EN_PORT |= LCD_EN_BIT //LCD使能
#define CLEAR_LCD_E *LCD_EN_PORT &= ~LCD_EN_BIT //LCD禁止
#define SET_LCD_DATA *LCD_DI_PORT |= LCD_DI_BIT //選擇指令端口
#define SET_LCD_CMD *LCD_DI_PORT &= ~LCD_DI_BIT //選擇數據端口
#define SET_LCD_READ *LCD_RW_PORT |= LCD_RW_BIT //讀模式
#define SET_LCD_WRITE *LCD_RW_PORT &= ~LCD_RW_BIT //寫模式
#define SET_LCD_CS2 *LCD_CS2_PORT |= LCD_CS2_BIT //左屏選擇禁止
#define CLEAR_LCD_CS2 *LCD_CS2_PORT &= ~LCD_CS2_BIT //左屏選擇使能
#define SET_LCD_CS1 *LCD_CS1_PORT |= LCD_CS1_BIT //左屏選擇禁止
#define CLEAR_LCD_CS1 *LCD_CS1_PORT &= ~LCD_CS1_BIT //左屏選擇使能
#define LEFT 0
#define RIGHT 1
#define CMD 0
#define DATA 1
void LCD_BUSY(unsigned char lr) //判斷忙標志
{
unsigned char status;
_CLI();
if(lr==LEFT)
{
CLEAR_LCD_CS2; //cs2=0
SET_LCD_CS1; //cs1=1
}
else
{
SET_LCD_CS2; //cs2=1
CLEAR_LCD_CS1; //cs1=0
}
SET_LCD_CMD;
*LCD_DIR_PORT = 0x00;
*LCD_OP_PORT = 0xff;
SET_LCD_READ;
SET_LCD_E;
_NOP();
_NOP();
_NOP();
_NOP();
while((*LCD_IP_PORT) & LCD_STATUS_BUSY)
{
CLEAR_LCD_E;
_NOP();
_NOP();
_NOP();
_NOP();
SET_LCD_E;
_NOP();
_NOP();
_NOP();
_NOP();
}
CLEAR_LCD_E;
SET_LCD_WRITE;
*LCD_OP_PORT = 0xff;
asm("sei");//)asm("sei");
}
void write_LCD(unsigned char lr,unsigned char cd,unsigned char data) /*寫入指令或數據*/
{
_CLI();//_CLI();
LCD_BUSY(lr);
if(cd==CMD)
{
SET_LCD_CMD;
}
else
{
SET_LCD_DATA;
}
SET_LCD_WRITE;
SET_LCD_E;
*LCD_DIR_PORT = 0xff;
*LCD_OP_PORT = data;
_NOP();
_NOP();
_NOP();
_NOP();
CLEAR_LCD_E;
*LCD_OP_PORT = 0xff;
_SEI();
}
unsigned char read_LCD(unsigned char lr) /* 讀顯示數據 */
{
unsigned char data;
_CLI();
LCD_BUSY(lr);
SET_LCD_DATA;
*LCD_DIR_PORT = 0x00;
*LCD_OP_PORT = 0xff;
SET_LCD_READ;
SET_LCD_E;
_NOP();
_NOP();
_NOP();
_NOP();
data=*LCD_IP_PORT;
CLEAR_LCD_E;
SET_LCD_WRITE;
LCD_BUSY(lr);
SET_LCD_DATA;
*LCD_DIR_PORT = 0x00;
*LCD_OP_PORT = 0xff;
SET_LCD_READ;
SET_LCD_E;
_NOP();
_NOP();
_NOP();
_NOP();
data=*LCD_IP_PORT;
CLEAR_LCD_E;
SET_LCD_WRITE;
_SEI();
return data;
}
void set_start_line_L(unsigned char line) /*設置顯示起始行*/ //0-63
{
write_LCD(LEFT,CMD,0xc0|line);
}
void set_start_line_R(unsigned char line) /*設置顯示起始行*/ //0-63
{
write_LCD(RIGHT,CMD,0xc0|line);
}
void set_page_L(unsigned char page) /*設置X地址 設置頁*/ //0-7
{
write_LCD(LEFT,CMD,0xb8|page);
}
void set_page_R(unsigned char page) /*設置X地址 設置頁*/ //0-7
{
write_LCD(RIGHT,CMD,0xb8|page);
}
void set_col_addr_L(unsigned char col) /*設置Y地址*/ //0-63
{
write_LCD(LEFT,CMD,0x40|col);
}
void set_col_addr_R(unsigned char col) /*設置Y地址*/ //0-63
{
write_LCD(RIGHT,CMD,0x40|col);
}
void init_lcd(void) /*初始化函數*/
{
set_start_line_L(0); /*顯示起始行為0*/
set_start_line_R(0); /*顯示起始行為0*/
write_LCD(LEFT,CMD,DISPLAY_ON); /* 開顯示 */
write_LCD(RIGHT,CMD,DISPLAY_ON); /* 開顯示 */
}
void clr_lcd(void) /*清屏函數*/
{
unsigned char pages,i;
for(pages=0;pages<8;pages++)
{
set_page_L(pages); /* X 頁地址 */
set_page_R(pages); /* X 頁地址 */
for(i=0;i<64;i++)
{
set_col_addr_L(i);//Y
set_col_addr_R(i);//Y
write_LCD(LEFT,DATA,0x0);
write_LCD(RIGHT,DATA,0x0);
}
}
}
//ASCII 字模寬度及高度
#define ASC_CHR_WIDTH 8
#define ASC_CHR_HEIGHT 12
typedef struct typFNT_ASC16 /* 漢字字模顯示數據結構 */
{
char Index[1];
char Msk[16];
};
const struct typFNT_ASC16 ASC_16[] =
{ /* 顯示為8*16 Curier 10 常規*/
"1",0x00,0x00,0x08,0x08,0xFC,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0x07,0x04,0x04,0x00,
"2",0x00,0x00,0x08,0x04,0x84,0x44,0x38,0x00,0x00,0x00,0x06,0x05,0x04,0x04,0x04,0x00,
"3",0x00,0x00,0x08,0x04,0x44,0x44,0xB8,0x00,0x00,0x00,0x02,0x04,0x04,0x04,0x03,0x00,
"4",0x00,0x00,0x80,0x60,0x18,0xFC,0x00,0x00,0x00,0x00,0x01,0x01,0x05,0x07,0x05,0x00,
"5",0x00,0x00,0x7C,0x44,0x44,0x44,0x84,0x00,0x00,0x00,0x02,0x04,0x04,0x04,0x03,0x00,
"6",0x00,0x00,0xF0,0x48,0x44,0x44,0x80,0x00,0x00,0x00,0x03,0x04,0x04,0x04,0x03,0x00,
"7",0x00,0x00,0x0C,0x04,0x84,0x64,0x1C,0x00,0x00,0x00,0x00,0x06,0x01,0x00,0x00,0x00,
"8",0x00,0x00,0xB8,0x44,0x44,0x44,0xB8,0x00,0x00,0x00,0x03,0x04,0x04,0x04,0x03,0x00,
"9",0x00,0x00,0x38,0x44,0x44,0x44,0xF8,0x00,0x00,0x00,0x00,0x04,0x04,0x02,0x01,0x00,
"0",0x00,0x00,0xF8,0x04,0x04,0x04,0xF8,0x00,0x00,0x00,0x03,0x04,0x04,0x04,0x03,0x00,
".",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,
",",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x04,0x00,0x00,0x00,
":",0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00,
";",0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x04,0x00,0x00,0x00,
"-",0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
"_",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,
"A",0x00,0x00,0x80,0x64,0x1C,0x60,0x80,0x00,0x00,0x04,0x07,0x05,0x01,0x05,0x07,0x04,
"B",0x00,0x04,0xFC,0x44,0x44,0x44,0x44,0xB8,0x00,0x04,0x07,0x04,0x04,0x04,0x04,0x03,
"C",0x00,0xF0,0x08,0x04,0x04,0x04,0x04,0x08,0x00,0x01,0x02,0x04,0x04,0x04,0x04,0x02,
"D",0x00,0x04,0xFC,0x04,0x04,0x04,0x08,0xF0,0x00,0x04,0x07,0x04,0x04,0x04,0x02,0x01,
"E",0x00,0x04,0xFC,0x44,0x44,0xE4,0x04,0x0C,0x00,0x04,0x07,0x04,0x04,0x04,0x04,0x06,
"F",0x00,0x04,0xFC,0x44,0x44,0xE4,0x04,0x0C,0x00,0x04,0x07,0x04,0x04,0x00,0x00,0x00,
" ",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
"=",0x00,0x00,0xA0,0xA0,0xA0,0xA0,0xA0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
"(",0x00,0x00,0x00,0xE0,0x18,0x04,0x00,0x00,0x00,0x00,0x00,0x03,0x0C,0x10,0x00,0x00,
")",0x00,0x00,0x00,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x00,0x10,0x0C,0x03,0x00,0x00,
"V",0x00,0x04,0x3C,0xC4,0x00,0xC4,0x3C,0x04,0x00,0x00,0x00,0x01,0x06,0x01,0x00,0x00,
"m",0x00,0x20,0xE0,0x20,0xC0,0x20,0xC0,0x00,0x00,0x04,0x07,0x00,0x07,0x00,0x07,0x04,
"H",0x00,0x04,0xFC,0x44,0x40,0x44,0xFC,0x04,0x00,0x04,0x07,0x04,0x00,0x04,0x07,0x04,
"*",0x90,0x90,0x60,0xFC,0x60,0x90,0x90,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0x00,0x00,
};
#define ASC_HZ_WIDTH 12
//#define ASC_HZ_HEIGHT 12
typedef struct typFNT_GB16 /*12*16 漢字字模顯示數據結構 */
{
char Index[2];
char Msk[24];
};
const struct typFNT_GB16 GB_16[] = { /* 宋體 9 顯示為12*16 */
"科",0x8A,0x6A,0xFE,0x29,0x49,0x80,0x92,0xA4,0x80,0xFF,0x40,0x00,0x01,0x00,0x07,0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x00,0x00,
"技",0x44,0x44,0xFF,0x24,0x00,0x64,0xA4,0x3F,0xA4,0x64,0x04,0x00,0x04,0x04,0x07,0x00,0x04,0x04,0x02,0x01,0x02,0x04,0x04,0x00,
"有",0x42,0x22,0x12,0xFA,0x4E,0x4B,0x4A,0x4A,0xFA,0x02,0x02,0x00,0x00,0x00,0x00,0x07,0x01,0x01,0x01,0x05,0x07,0x00,0x00,0x00,
"限",0xFF,0x81,0x99,0xE7,0x00,0xFF,0x25,0xE5,0x25,0xBF,0x40,0x00,0x07,0x00,0x00,0x00,0x00,0x07,0x04,0x02,0x01,0x02,0x04,0x00,
"公",0x20,0x10,0x08,0x07,0xC0,0x30,0x83,0x0C,0x10,0x20,0x20,0x00,0x00,0x04,0x06,0x05,0x04,0x04,0x02,0x03,0x06,0x00,0x00,0x00,
"司",0x08,0x09,0xE9,0x29,0x29,0x29,0xED,0x09,0x01,0xFF,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x04,0x04,0x07,0x00,0x00,
"液",0x19,0xE2,0x14,0x42,0xF2,0x2E,0x72,0x8F,0xAA,0x7A,0x02,0x00,0x01,0x07,0x00,0x00,0x07,0x04,0x04,0x02,0x01,0x02,0x04,0x00,
"晶",0x00,0xC0,0x40,0x5F,0xD5,0x15,0xD5,0x55,0x5F,0x40,0xC0,0x00,0x00,0x07,0x05,0x05,0x07,0x00,0x07,0x05,0x05,0x05,0x07,0x00,
"顯",0x00,0x40,0x9F,0x15,0xD5,0x15,0xD5,0x15,0x1F,0xC0,0x00,0x00,0x04,0x04,0x05,0x04,0x07,0x04,0x07,0x06,0x05,0x04,0x04,0x00,
"示",0x10,0x12,0x92,0x52,0x12,0xF2,0x12,0x12,0x53,0x92,0x10,0x00,0x02,0x01,0x00,0x04,0x04,0x07,0x00,0x00,0x00,0x00,0x03,0x00,
"的",0xFC,0x44,0x46,0x45,0xFC,0x10,0x2C,0xC7,0x04,0x04,0xFC,0x00,0x07,0x02,0x02,0x02,0x07,0x00,0x00,0x04,0x04,0x04,0x03,0x00,
"第",0x04,0xEA,0xAB,0xAE,0xAA,0xFC,0xAA,0xAB,0xAE,0xBA,0x82,0x00,0x04,0x04,0x02,0x01,0x00,0x07,0x00,0x02,0x02,0x02,0x01,0x00,
"一",0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x20,0x30,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
"行",0x48,0x24,0xF3,0x08,0x09,0x09,0x09,0x09,0xF9,0x09,0x08,0x00,0x00,0x00,0x07,0x00,0x00,0x04,0x04,0x04,0x07,0x00,0x00,0x00,
"二",0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x06,0x04,0x00,0x00,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00,
"三",0x00,0x02,0x22,0x22,0x22,0x22,0x22,0x22,0x23,0x02,0x00,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x06,0x04,0x00,
"四",0x00,0xFF,0x81,0x41,0x3F,0x01,0x01,0xFF,0x81,0x81,0xFF,0x00,0x00,0x07,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x07,0x00,
"五",0x00,0x11,0x11,0x91,0x7F,0x11,0x11,0x11,0xF1,0x01,0x00,0x00,0x04,0x04,0x04,0x07,0x04,0x04,0x04,0x04,0x07,0x04,0x04,0x00,
};
unsigned char GetPage(void) /*得到當前頁*/
{
return CurPage;
}
unsigned char GetCol(void) /*得到當前列*/
{
return CurCol;
}
void SetPageCol(unsigned char upage, unsigned char ucol) /* 設置液晶的頁和列 */
{
CurPage = upage;
CurCol = ucol;
if(ucol<64)
{
set_page_L(upage);
set_col_addr_L(ucol);
}
else
{
set_page_R(upage);
set_col_addr_R(ucol-64);
}
}
/* 設置當前顯示的頁和列 */
void SetRowCol(unsigned char urow, unsigned char ucol)
{
unsigned char page;
CurRow = urow;
CurCol = ucol;
switch(urow)
{
case 1:
page=0;
CurOffset=1;
break;
case 2:
page=1;
CurOffset=2;
break;
case 3:
page=3;
CurOffset=1;
break;
case 4:
page=4;
CurOffset=2;
break;
case 5:
page=6;
CurOffset=1;
break;
}
SetPageCol(page,ucol);
}
void disp_ch(unsigned char c)
{
unsigned char k,j,uPage,uCol,ch_r,ch_w;
unsigned char width;
unsigned char len;
uPage = GetPage();
uCol = GetCol();
len=sizeof(ASC_16)/sizeof(ASC_16[0]);
for(k=0;k<len;k++)
{
if(c == ASC_16[k].Index[0] ) break;
}
if(k<len)
{
if(c=='-'||c==':')
width=ASC_CHR_WIDTH-2;
else if(c=='|')
width=ASC_HZ_WIDTH-ASC_CHR_WIDTH;
else
width=ASC_CHR_WIDTH;
if(CurOffset==1) //下半部是寫半個字節
{
for(j=0;j<width;j++)
{
SetPageCol(uPage,uCol+j);
ch_w=ASC_16[k].Msk[j];
if(uCol+j<64) write_LCD(LEFT,DATA,ch_w);
else write_LCD(RIGHT,DATA,ch_w);
}
SetPageCol(uPage+1,uCol);
for(j=0;j<width;j++)
{
SetPageCol(uPage+1,uCol+j);
if(uCol+j<64) ch_r=read_LCD(LEFT);
else ch_r=read_LCD(RIGHT);
ch_r&=0xf0;
ch_w=ASC_16[k].Msk[ASC_CHR_WIDTH+j]&0x0f;
ch_w|=ch_r;
SetPageCol(uPage+1,uCol+j);
if(uCol+j<64) write_LCD(LEFT,DATA,ch_w);
else write_LCD(RIGHT,DATA,ch_w);
}
}
else //上半部是寫半個字節
{
for(j=0;j<width;j++)
{
SetPageCol(uPage,uCol+j);
if(uCol+j<64) ch_r=read_LCD(LEFT);
else ch_r=read_LCD(RIGHT);
ch_r&=0x0f;
ch_w=ASC_16[k].Msk[j];
ch_w=ch_w<<4;
ch_w|=ch_r;
SetPageCol(uPage,uCol+j);
if(uCol+j<64) write_LCD(LEFT,DATA,ch_w);
else write_LCD(RIGHT,DATA,ch_w);
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