📄 test1.c

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#include<avr/io.h>
#include<util/delay.h>
#include"pic_temp.h"

#define NOP() asm("nop")

#define DATA_LO_DDR  DDRA
#define DATA_LO_PORT PORTA
#define DATA_LO_PIN  PINA

#define DATA_HI_DDR  DDRD
#define DATA_HI_PORT PORTD
#define DATA_HI_PIN  PIND

#define LCD_CS_DDR  DDRB
#define LCD_CS_PORT PORTB
#define LCD_CS_PIN  PINB
#define LCD_CS_BIT  0


#define LCD_RS_DDR  DDRB
#define LCD_RS_PORT PORTB
#define LCD_RS_PIN  PINB
#define LCD_RS_BIT  1


#define LCD_WR_DDR  DDRB
#define LCD_WR_PORT PORTB
#define LCD_WR_PIN  PINB
#define LCD_WR_BIT  2


#define LCD_RD_DDR  DDRB
#define LCD_RD_PORT PORTB
#define LCD_RD_PIN  PINB
#define LCD_RD_BIT  3

#define LCD_RST_DDR  DDRB
#define LCD_RST_PORT PORTB
#define LCD_RST_PIN  PINB
#define LCD_RST_BIT  4

#define DATA_INPUT() {\
						DATA_LO_DDR = 0x00;\
						DATA_HI_DDR = 0x00;\
						}
#define DATA_OUTPUT() {\
						DATA_LO_DDR = 0xff;\
						DATA_HI_DDR = 0xff;\
						}
#define LCD_CS_H() LCD_CS_PORT |= 1<<LCD_CS_BIT
#define LCD_CS_L() LCD_CS_PORT &= ~(1<<LCD_CS_BIT)

#define LCD_RS_H() LCD_RS_PORT |= 1<<LCD_RS_BIT
#define LCD_RS_L() LCD_RS_PORT &= ~(1<<LCD_RS_BIT)

#define LCD_WR_H() LCD_WR_PORT |= 1<<LCD_WR_BIT
#define LCD_WR_L() LCD_WR_PORT &= ~(1<<LCD_WR_BIT)

#define LCD_RD_H() LCD_RD_PORT |= 1<<LCD_RD_BIT
#define LCD_RD_L() LCD_RD_PORT &= ~(1<<LCD_RD_BIT)

#define LCD_RST_H() LCD_RST_PORT |= 1<<LCD_RST_BIT
#define LCD_RST_L() LCD_RD_PORT &= ~(1<<LCD_RST_BIT)


#define PORT_INI() {\
						DATA_INPUT();\
						LCD_CS_H();\
						LCD_RS_H();\
						LCD_WR_H();\
						LCD_RD_H();\
						LCD_RST_L();\
						LCD_CS_DDR |= 1<<LCD_CS_BIT;\
						LCD_RS_DDR |= 1<<LCD_RS_BIT;\
						LCD_WR_DDR |= 1<<LCD_WR_BIT;\
						LCD_RD_DDR |= 1<<LCD_RD_BIT;\
						LCD_RST_DDR |= 1<<LCD_RST_BIT;\
						}

void LCD_WR_REG(unsigned char index,unsigned int val)
{
	LCD_CS_L();
	LCD_RS_L();
	DATA_OUTPUT();
	DATA_LO_PORT = (unsigned char)index;
	DATA_HI_PORT = 0;
	//DATA_HI_PORT = (unsigned char)(index>>8);
	LCD_WR_L();
	NOP();
	NOP();
	LCD_WR_H();
	LCD_RS_H();
	DATA_LO_PORT = (unsigned char)val;
	DATA_HI_PORT = (unsigned char)(val>>8);
	LCD_WR_L();
	NOP();
	NOP();
	LCD_WR_H();
	LCD_CS_H();
}

unsigned int LCD_RD_REG(unsigned char index)
{
	unsigned int ret;
	LCD_CS_L();
	LCD_RS_L();
	DATA_OUTPUT();
	DATA_LO_PORT = (unsigned char)index;
	DATA_HI_PORT = 0;
	//DATA_HI_PORT = (unsigned char)(index>>8);
	LCD_WR_L();
	NOP();
	NOP();
	LCD_WR_H();
	LCD_RS_H();
	DATA_INPUT();
	ret = DATA_HI_PIN;
	ret <<= 8;
	ret += DATA_LO_PIN;
	LCD_RD_L();
	NOP();
	NOP();
	LCD_RD_H();
	LCD_CS_H();
	return ret;
}

void LCD_Write_Start()
{
	LCD_CS_L();
	LCD_RS_L();
	DATA_OUTPUT();
	DATA_LO_PORT = 0x22;
	DATA_HI_PORT = 0x00;
	LCD_WR_L();
	NOP();
	NOP();
	LCD_WR_H();
	LCD_RS_H();
}

void LCD_Write_Data(unsigned int val)
{
	DATA_LO_PORT = (unsigned char)val;
	DATA_HI_PORT = (unsigned char)(val>>8);
	LCD_WR_L();
	NOP();
	NOP();
	LCD_WR_H();
}

void LCD_Write_End()
{
	LCD_CS_H();
}

void LCD_Read_Start()
{
	LCD_CS_L();
	LCD_RS_L();
	DATA_OUTPUT();
	DATA_LO_PORT = 0x22;
	DATA_HI_PORT = 0x00;
	LCD_WR_L();
	NOP();
	NOP();
	LCD_WR_H();
	LCD_RS_H();
	DATA_INPUT();
	LCD_RD_L();//dummy read
	NOP();
	LCD_RD_H();
	NOP();
	NOP();
}

unsigned int LCD_RD_DATA()
{
	unsigned int ret;
	LCD_RD_L();
	NOP();
	ret = DATA_HI_PIN;
	ret <<= 8;
	ret += DATA_LO_PIN;
	LCD_RD_H();
	NOP();
	NOP();
	return ret;	
}

void LCD_Read_End()
{
	LCD_CS_H();
}


void delay_Nms(unsigned int n)
{
	while(n--)_delay_ms(1);
}

#define Display_ON() LCD_WR_REG(0x07,0x0173)
#define Display_OFF() LCD_WR_REG(0x07,0x0000)

void LCD_Init()
{
	PORT_INI();

	LCD_RST_L();
	delay_Nms(10);
	LCD_RST_H();

	//delay 10ms
	delay_Nms(10);

	//initializing funciton 1
	LCD_WR_REG(0xe5,0x8000);
	LCD_WR_REG(0x00,0x0001);
	LCD_WR_REG(0x2b,0x0010);
	LCD_WR_REG(0x01,0x0100);
	LCD_WR_REG(0x02,0x0700);
	LCD_WR_REG(0x03,0x1230);
	LCD_WR_REG(0x04,0x0000);
	LCD_WR_REG(0x08,0x0202);
	LCD_WR_REG(0x09,0x0000);
	LCD_WR_REG(0x0a,0x0000);
	LCD_WR_REG(0x0c,0x0000);
	LCD_WR_REG(0x0d,0x0000);
	LCD_WR_REG(0x0f,0x0000);
	LCD_WR_REG(0x50,0x0000);
	LCD_WR_REG(0x51,0x00ef);
	LCD_WR_REG(0x52,0x0000);
	LCD_WR_REG(0x53,0x013f);
	LCD_WR_REG(0x60,0x2700);
	LCD_WR_REG(0x61,0x0001);
	LCD_WR_REG(0x6a,0x0000);
	LCD_WR_REG(0x80,0x0000);
	LCD_WR_REG(0x81,0x0000);
	LCD_WR_REG(0x82,0x0000);
	LCD_WR_REG(0x83,0x0000);
	LCD_WR_REG(0x84,0x0000);
	LCD_WR_REG(0x85,0x0000);
	LCD_WR_REG(0x90,0x0010);
	LCD_WR_REG(0x92,0x0000);
	LCD_WR_REG(0x93,0x0003);
	LCD_WR_REG(0x95,0x0110);
	LCD_WR_REG(0x97,0x0000);
	LCD_WR_REG(0x98,0x0000);

	//power setting function
	LCD_WR_REG(0x10,0x0000);
	LCD_WR_REG(0x11,0x0000);
	LCD_WR_REG(0x12,0x0000);
	LCD_WR_REG(0x13,0x0000);
	delay_Nms(200);
	LCD_WR_REG(0x10,0x17b0);
	LCD_WR_REG(0x11,0x0004);
	delay_Nms(50);
	LCD_WR_REG(0x12,0x013e);
	delay_Nms(50);
	LCD_WR_REG(0x13,0x1f00);
	LCD_WR_REG(0x29,0x000f);
	delay_Nms(50);
	LCD_WR_REG(0x20,0x0000);
	LCD_WR_REG(0x21,0x0000);

	//initializing function 2

	LCD_WR_REG(0x30,0x0204);
	LCD_WR_REG(0x31,0x0001);
	LCD_WR_REG(0x32,0x0000);
	LCD_WR_REG(0x35,0x0206);
	LCD_WR_REG(0x36,0x0600);
	LCD_WR_REG(0x37,0x0500);
	LCD_WR_REG(0x38,0x0505);
	LCD_WR_REG(0x39,0x0407);
	LCD_WR_REG(0x3c,0x0500);
	LCD_WR_REG(0x3d,0x0503);

	//display on
	LCD_WR_REG(0x07,0x0173);
	//Display_ON();
}


void LCD_Set_XY(unsigned int x, unsigned int y)
{
	LCD_WR_REG(0x20,x);
	LCD_WR_REG(0x21,y);
}

void LCD_Set_Window(unsigned int startX,unsigned int startY,unsigned int endX,unsigned int endY)
{
	LCD_Set_XY(startX,startY);
	LCD_WR_REG(0x50,startX);
	LCD_WR_REG(0x52,startY);
	LCD_WR_REG(0x51,endX);
	LCD_WR_REG(0x53,endY);	
}


void LCD_test()
{
	unsigned int i,j;
	LCD_Write_Start();
	for(i=0;i<320;i++)
		for(j=0;j<240;j++)
		{
			if(i>279)LCD_Write_Data(0x0000);
			else if(i>239)LCD_Write_Data(0x001f);
			else if(i>199)LCD_Write_Data(0x07e0);
			else if(i>159)LCD_Write_Data(0x07ff);
			else if(i>119)LCD_Write_Data(0xf800);
			else if(i>79)LCD_Write_Data(0xf81f);
			else if(i>39)LCD_Write_Data(0xffe0);
			else LCD_Write_Data(0xffff);
		}
	LCD_Write_End();
}

unsigned char LCD_DrawPicture(unsigned char startX, unsigned char startY, unsigned int *pic, unsigned char sizeX, unsigned char sizeY)
{
	unsigned int endX,endY;
	unsigned long totalPixels = (unsigned long)sizeX * (unsigned long)sizeY;
	endX = startX+sizeX-1;
	endY = startY+sizeY-1;
	if(endX>239 || endY>319)return 1;
	LCD_Set_Window(startX,startY,endX,endY);
	LCD_Write_Start();
	while(totalPixels--)LCD_Write_Data(pgm_read_word(pic++));
	LCD_Write_End();
	return 0;
}

unsigned char LCD_DrawPicture2(unsigned char startX, unsigned char startY, unsigned int *pic, unsigned char sizeX, unsigned char sizeY)
{
	unsigned int i,j;

	if((startX+sizeX)>240 || (startY+sizeY)>320)return 1;

	for (j = 0; j<sizeY; j++)
	{
    	LCD_Set_XY(startX,startY);
		LCD_Write_Start();
    	for(i = 0; i<sizeX; i++)
    	{
			LCD_Write_Data(pgm_read_word(pic++));
    	}
    	startY++;//换行
  	}
	LCD_Write_End();
	return 0;
}


int main()
{
	LCD_Init();
	LCD_test();
	delay_Nms(2000);
	LCD_DrawPicture2(55,111,(unsigned int *)yemin,136,102);
	while(1);
	return 0;
}
💿 文件大小 130 K
👤 上传用户 wg204wg
📂 所属分类微处理器开发
🏷️ 相关标签

#9320 #lcd #驱动 #源码
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