[嵌入式]MSP432 TFTLCD ILI9481 软件SPI

?下面是我用的LCD屏的图片

?CS :? ?PF1? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?RS? :? ?PF2

RST:? ?PF3? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?MOSI: PL4

SCK:? PL5

?代码：

SPI.h

#ifndef _SPI_H_
#define _SPI_H_


#include <driverlib.h>
#define u32 unsigned int
#define u16 unsigned short
#define u8 unsigned char




#define	SPI_MOSI_SET  	MAP_GPIOPinWrite(GPIO_PORTL_BASE,GPIO_PIN_4,GPIO_PIN_4) 
#define	SPI_SCLK_SET  	MAP_GPIOPinWrite(GPIO_PORTL_BASE,GPIO_PIN_5,GPIO_PIN_5)  




#define	SPI_MOSI_CLR  	MAP_GPIOPinWrite(GPIO_PORTL_BASE,GPIO_PIN_4,0)   
#define	SPI_SCLK_CLR  	MAP_GPIOPinWrite(GPIO_PORTL_BASE,GPIO_PIN_5,0)     

void  SPIv_WriteData(u8 Data);

#endif

SPI.c

#include "spi.h"

void  SPIv_WriteData(u8 Data)
{
	unsigned char i=0;
	for(i=8;i>0;i--)
	{
	  if(Data&0x80)	
	  SPI_MOSI_SET; 
      else SPI_MOSI_CLR;
      SPI_SCLK_CLR;       
      SPI_SCLK_SET;
      Data<<=1; 
	}
}

LCD.h

#include "lcd.h"



u16 POINT_COLOR = 0x0000,BACK_COLOR = 0xFFFF;  
u16 DeviceCode;	 

/*****************************************************************************
 * @function   :Write an 8-bit command to the LCD screen
******************************************************************************/
void LCD_WR_REG(u8 data)
{ 
   LCD_CS_CLR;     
	 LCD_RS_CLR;	  
   SPIv_WriteData(data);
   LCD_CS_SET;	
}

/*****************************************************************************

 * @function   :Write an 8-bit data to the LCD screen
******************************************************************************/
void LCD_WR_DATA(u8 data)
{
   LCD_CS_CLR;
	 LCD_RS_SET;
   SPIv_WriteData(data);
   LCD_CS_SET;
}

/*****************************************************************************
 * @function   :Write data into registers

******************************************************************************/
void LCD_WriteReg(u8 LCD_Reg, u16 LCD_RegValue)
{	
	LCD_WR_REG(LCD_Reg);  
	LCD_WR_DATA(LCD_RegValue);	    		 
}	   

/*****************************************************************************
 * @function   :Write GRAM
******************************************************************************/	 
void LCD_WriteRAM_Prepare(void)
{
	LCD_WR_REG(lcddev.wramcmd);
}	 

/*****************************************************************************
 * @function   :Write an 16-bit command to the LCD screen
******************************************************************************/	 
void Lcd_WriteData_16Bit(u16 Data)
{	
  //18Bit	
	LCD_WR_DATA((Data>>8)&0xF8);//RED
	LCD_WR_DATA((Data>>3)&0xFC);//GREEN
	LCD_WR_DATA(Data<<3);//BLUE
}

/*****************************************************************************
 * @function   :Write a pixel data at a specified location
******************************************************************************/	
void LCD_DrawPoint(u16 x,u16 y)
{
	LCD_SetCursor(x,y);
	Lcd_WriteData_16Bit(POINT_COLOR); 
}

/*****************************************************************************
 * @function   :Full screen filled LCD screen
******************************************************************************/	
void LCD_Clear(u16 Color)
{
  unsigned int i,m;  
	LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);   
	LCD_CS_CLR;
	LCD_RS_SET;
	for(i=0;i<lcddev.height;i++)
	{
    for(m=0;m<lcddev.width;m++)
    {	
			Lcd_WriteData_16Bit(Color);
		}
	}
	 LCD_CS_SET;
} 

/*****************************************************************************
 * @function   :Reset LCD screen
******************************************************************************/	
void LCD_RESET(void)
{
	LCD_RST_CLR;
	delay_ms(100);	
	LCD_RST_SET;
	delay_ms(50);
}

/*****************************************************************************
 * @function   :Initialization LCD screen
******************************************************************************/	 	 
void LCD_Init(void)
{  
 	LCD_RESET(); 
	LCD_WR_REG(0XF7);
	LCD_WR_DATA(0xA9);
	LCD_WR_DATA(0x51);
	LCD_WR_DATA(0x2C);
	LCD_WR_DATA(0x82);
	LCD_WR_REG(0xC0);
	LCD_WR_DATA(0x11);
	LCD_WR_DATA(0x09);
	LCD_WR_REG(0xC1);
	LCD_WR_DATA(0x41);
	LCD_WR_REG(0XC5);
	LCD_WR_DATA(0x00);
	LCD_WR_DATA(0x0A);
	LCD_WR_DATA(0x80);
	LCD_WR_REG(0xB1);
	LCD_WR_DATA(0xB0);
	LCD_WR_DATA(0x11);
	LCD_WR_REG(0xB4);
	LCD_WR_DATA(0x02);
	LCD_WR_REG(0xB6);
	LCD_WR_DATA(0x02);
	LCD_WR_DATA(0x42);
	LCD_WR_REG(0xB7);
	LCD_WR_DATA(0xc6);
	LCD_WR_REG(0xBE);
	LCD_WR_DATA(0x00);
	LCD_WR_DATA(0x04);
	LCD_WR_REG(0xE9);
	LCD_WR_DATA(0x00);
	LCD_WR_REG(0x36);
	LCD_WR_DATA((1<<3)|(0<<7)|(1<<6)|(1<<5));
	LCD_WR_REG(0x3A);
	LCD_WR_DATA(0x66);
	LCD_WR_REG(0xE0);
	LCD_WR_DATA(0x00);
	LCD_WR_DATA(0x07);
	LCD_WR_DATA(0x10);
	LCD_WR_DATA(0x09);
	LCD_WR_DATA(0x17);
	LCD_WR_DATA(0x0B);
	LCD_WR_DATA(0x41);
	LCD_WR_DATA(0x89);
	LCD_WR_DATA(0x4B);
	LCD_WR_DATA(0x0A);
	LCD_WR_DATA(0x0C);
	LCD_WR_DATA(0x0E);
	LCD_WR_DATA(0x18);
	LCD_WR_DATA(0x1B);
	LCD_WR_DATA(0x0F);
	LCD_WR_REG(0XE1);
	LCD_WR_DATA(0x00);
	LCD_WR_DATA(0x17);
	LCD_WR_DATA(0x1A);
	LCD_WR_DATA(0x04);
	LCD_WR_DATA(0x0E);
	LCD_WR_DATA(0x06);
	LCD_WR_DATA(0x2F);
	LCD_WR_DATA(0x45);
	LCD_WR_DATA(0x43);
	LCD_WR_DATA(0x02);
	LCD_WR_DATA(0x0A);
	LCD_WR_DATA(0x09);
	LCD_WR_DATA(0x32);
	LCD_WR_DATA(0x36);
	LCD_WR_DATA(0x0F);
	LCD_WR_REG(0x11);
	LCD_WR_REG(0x29);
	
  LCD_direction(USE_HORIZONTAL);
	LCD_Fill(0,0,lcddev.width,lcddev.height,WHITE);
	//LCD_Clear(WHITE);
}
 
/*****************************************************************************
 * @function   :Setting LCD display window
******************************************************************************/ 
void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd)
{	
	LCD_WR_REG(lcddev.setxcmd);	
	LCD_WR_DATA(xStar>>8);
	LCD_WR_DATA(0x00FF&xStar);		
	LCD_WR_DATA(xEnd>>8);
	LCD_WR_DATA(0x00FF&xEnd);

	LCD_WR_REG(lcddev.setycmd);	
	LCD_WR_DATA(yStar>>8);
	LCD_WR_DATA(0x00FF&yStar);		
	LCD_WR_DATA(yEnd>>8);
	LCD_WR_DATA(0x00FF&yEnd);

	LCD_WriteRAM_Prepare();			
}   

/*****************************************************************************
 * @function   :Set coordinate value

******************************************************************************/ 
void LCD_SetCursor(u16 Xpos, u16 Ypos)
{	  	    			
	LCD_SetWindows(Xpos,Ypos,Xpos,Ypos);	
} 

/*****************************************************************************
 * @function   :Setting the display direction of LCD screen

******************************************************************************/ 
void LCD_direction(u8 direction)
{ 
			lcddev.setxcmd=0x2A;
			lcddev.setycmd=0x2B;
			lcddev.wramcmd=0x2C;
	switch(direction){		  
		case 0:						 	 		
			lcddev.width=LCD_W;
			lcddev.height=LCD_H;		
			LCD_WriteReg(0x36,(1<<3)|(0<<6)|(0<<7));//BGR==1,MY==0,MX==0,MV==0
		break;
		case 1:
			lcddev.width=LCD_H;
			lcddev.height=LCD_W;
			LCD_WriteReg(0x36,(1<<3)|(0<<7)|(1<<6)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
		break;
		case 2:						 	 		
			lcddev.width=LCD_W;
			lcddev.height=LCD_H;	
			LCD_WriteReg(0x36,(1<<3)|(1<<6)|(1<<7));//BGR==1,MY==0,MX==0,MV==0
		break;
		case 3:
			lcddev.width=LCD_H;
			lcddev.height=LCD_W;
			LCD_WriteReg(0x36,(1<<3)|(1<<7)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
		break;	
		default:break;
	}		
}	 

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