用AtmelStudio6.2跑mega16例程(66)显示汉字

2万 · 2014-12-7 12:15

这个例子演示了LGM12864 液晶屏的汉字显示效果，该液晶屏使用KS0108控制芯片。

Proteus运行截图：

Atmel Studio6.2编译通过截图：

程序清单：

LCD:

/*

 * GccApplication29.c

 *

 * Created: 2014-12-7 10:45:58

 *  Author: Administrator

 */ 





#include <avr/io.h>

#include <util/delay.h>

#include <string.h>

#include <stdint.h>



#define LCD_START_ROW 0xc0

#define LCD_PAGE 0xB8

#define LCD_COL 0x40



#define  RW PD0

#define DI PD1

#define E PD2

#define CS1 PD3

#define CS2 PD4

#define RST PD5



#define LCD_PORT PORTC

#define LCD_DDR DDRC

#define LCD_PIN PINC

#define LCD_CTRL PORTD



#define RW_1() LCD_CTRL |= _BV(RW)

#define RW_0() LCD_CTRL &=~_BV(RW)

#define DI_1() LCD_CTRL |= _BV(DI)

#define DI_0() LCD_CTRL &=~_BV(DI)

#define E_1() LCD_CTRL |= _BV(E)

#define E_0() LCD_CTRL &=~_BV(E)

#define CS1_1() LCD_CTRL |= _BV(CS1)

#define CS1_0() LCD_CTRL &=~_BV(CS1)

#define CS2_1() LCD_CTRL |= _BV(CS2)

#define CS2_0() LCD_CTRL &=~_BV(CS2)

#define RST_1() LCD_CTRL|= _BV(RST)

#define RST_0() LCD_CTRL &=~_BV(RST)



uint8_t Reverse_Display = 0;



void Wait_LCD_Ready()

{

        Check_Busy:

        LCD_DDR = 0x00;

        LCD_PORT = 0xFF;

        RW_1();asm("nop");DI_0();

        E_1();asm("nop"); E_0();

        if(LCD_PIN&0x80)goto Check_Busy;

} 





void LCD_Write_Command(uint8_t cmd)

{

        Wait_LCD_Ready();

        LCD_DDR = 0xFF;

        LCD_PORT = 0xFF;

        RW_0();asm("nop");DI_0();

        LCD_PORT = cmd;

        E_1();asm("nop");E_0();

}



void LCD_Write_Data(uint8_t dat)

{

        Wait_LCD_Ready();

        LCD_DDR = 0xFF;

        LCD_PORT = 0xff;

        RW_0();asm("nop");DI_1();

        if(!Reverse_Display) LCD_PORT=dat;else LCD_PORT = ~dat;

        E_1();asm("nop");E_0();

}



void LCD_Initialize()

{

        LCD_Write_Command(0x3F);_delay_ms(15);

}



//从第Ｐ页Ｌ列开始显示Ｗ个字节数据，数据在r所指向的缓冲

void Common_Show(uint8_t P,uint8_t L,uint8_t W,uint8_t *r)

{

        uint8_t i;

        if(L<64)

        {

                CS1_1();CS2_0();

                LCD_Write_Command(LCD_PAGE + P);

                LCD_Write_Command(LCD_COL + L);

                if(L + W < 64)

                {

                        for(i=0;i<W;i++) LCD_Write_Data(r[i]);

                }

                else

                {

                        for(i=0;i<64 - L;i++) LCD_Write_Data(r[i]);

                        CS1_0();CS2_1();

                        LCD_Write_Command(LCD_PAGE + P);

                        LCD_Write_Command(LCD_COL);

                        for(i=64 - L;i<W;i++)LCD_Write_Data(r[i]);

                }

                

        }

        else

        {

                CS1_0();CS2_1();

                LCD_Write_Command(LCD_PAGE + P);

                LCD_Write_Command(LCD_COL + L - 64);

                for(i=0;i<W;i++)LCD_Write_Data(r[i]);

        }

}



void Display_A_Char_8X16(uint8_t P,uint8_t L,uint8_t *M)

{

        Common_Show(P, L, 8, M);

        Common_Show(P + 1,L,8,M+8);

}



void Display_A_WORD(uint8_t P,uint8_t L,uint8_t *M)

{

        Common_Show(P,L,16,M);

        Common_Show(P+1,L,16,M+16);

}



void Display_A_WORD_String(uint8_t P,uint8_t L,uint8_t C,uint8_t *M)

{

        uint8_t i;

        for(i=0;i<C;i++)

        {

                Display_A_WORD(P,L+i * 16,M + i *32);

        }

        

}

main:

复制

#define  F_CPU 2000000UL

#include <avr/io.h>

#include <util/delay.h>

#include <stdint.h>

extern void LCD_Initialize();

extern void Display_A_WORD_String(uint8_t P,uint8_t L,uint8_t C,uint8_t *M);

extern uint8_t Reverse_Display;

const uint8_t WORD_Dot_Matrix[] = 

{

        0x10,0x61,0x06,0xE0,0x18,0x84,0xe4,0x1c,0x84,0x65,0xEE,0x24,0xa4,0x64,0x04,0x00,

        0x04,0x04,0xFF,0x00,0x01,0x00,0xFF,0x41,0x21,0x12,0x0c,0x1B,0x61,0xC0,0x40,0x00,

        

        0x00,0x00,0x00,0x00,0x7e,0x2a,0x2a,0x2a,0x2a,0x2a,0x2a,0x7E,0x00,0x00,0x00,0x00,

        0x00,0x7f,0x25,0x25,0x25,0x25,0x7f,0x00,0x00,0x7f,0x25,0x25,0x25,0x25,0x7F,0x00,

        

        0x00,0x00,0xff,0x09,0x49,0x59,0xe9,0x49,0x49,0x49,0xe9,0x59,0x49,0x4f,0x00,0x00,

        0x40,0x30,0x0f,0x82,0x42,0x32,0x0f,0x02,0x02,0x02,0xff,0x02,0x02,0x02,0x02,0x00,

        

        0x08,0x31,0x86,0x60,0x00,0xfe,0x02,0xf2,0x02,0xfe,0x00,0xf8,0x00,0x00,0xff,0x00,

        0x04,0xfc,0x03,0x00,0x80,0x47,0x30,0x0f,0x10,0x67,0x00,0x07,0x40,0x80,0x7F,0x00,

        

        0x40,0x42,0xdc,0x08,0x00,0x90,0x90,0x90,0x90,0x90,0xff,0x10,0x12,0x1c,0x10,0x00,

        0x00,0x00,0x7f,0x20,0x10,0x20,0x20,0x1F,0x10,0x10,0x01,0x06,0x18,0x20,0x78,0x00,

        

        0x10,0x12,0xd2,0xFE,0x91,0x11,0x80,0xbf,0xa1,0xa1,0xa1,0xa1,0xbf,0x80,0x00,0x00,

        0x04,0x03,0x00,0xef,0x00,0x41,0x44,0x44,0x44,0x7f,0x44,0x44,0x44,0x44,0x40,0x00,

        

        0x00,0x00,0xfc,0x04,0x04,0x14,0x14,0x35,0x56,0x94,0x54,0x34,0x14,0x04,0x04,0x00,

        0x80,0x60,0x1f,0x00,0x01,0x01,0x01,0x41,0x81,0x7f,0x01,0x01,0x01,0x03,0x01,0x00

        

        

};



int main()

{

        DDRD = 0xFF; PORTD = 0xFF;

        LCD_Initialize();

        Display_A_WORD_String(2,8,7,(uint8_t*)WORD_Dot_Matrix);

        Reverse_Display = 1;

        Display_A_WORD_String(5,8,7,(uint8_t*)WORD_Dot_Matrix);

        while(1);

}