本帖最后由 fengm 于 2011-11-20 20:29 编辑
突发奇想看看能不能写出彩色液晶屏来，哈哈，我试了试还可以啊，下面是代码：
#include "../inc/hw_ints.h"
#include "../inc/hw_memmap.h"
#include "../inc/hw_sysctl.h"
#include "../inc/hw_types.h"
这是在调用函数里面的，因为需要调用上一级目录的所以加上了"../" 这样才能够使用正确。
下面的是主函数的代码：
#include "inc/hw_types.h"
#include "inc/hw_memmap.h"
#include "driverlib/sysctl.h"
#include "driverlib/gpio.h"
#include "driverlib/timer.h"
#include "driverlib/systemInit.h"
这里用的定义，我们完全可以把以前所有的函数都来修改成这样的，方便调用，何乐而不为呢！
#define LCD_WR0 GPIOPinWrite(RW_PORT,RW_PIN,0); //写控制
#define LCD_WR1 GPIOPinWrite(RW_PORT,RW_PIN,RW_PIN);
#define LCD_RS0 GPIOPinWrite(RS_PORT,RS_PIN,0); //数据/命令切换
#define LCD_RS1 GPIOPinWrite(RS_PORT,RS_PIN,RS_PIN);
#define LCD_REST0 GPIOPinWrite(RST_PORT,RST_PIN,0); //复位
#define LCD_REST1 GPIOPinWrite(RST_PORT,RST_PIN,RST_PIN);
#define LCD_CS0 GPIOPinWrite(E_PORT,E_PIN,0); //片选
#define LCD_CS1 GPIOPinWrite(E_PORT,E_PIN,E_PIN); //片选关闭
#define LCD_RD1 GPIOPinWrite(RD_PORT,RD_PIN,RD_PIN); //读控制
/*定义液晶的数据端口*/
#define DBS_PERIPH SYSCTL_PERIPH_GPIOD
#define DBS_PORT GPIO_PORTD_BASE
#define DBS_PINS GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7
上面的这句代码其实这里是我找了很久才发现的，这样写起来更简单，真是长见识了！！！
/*定义液晶数据命令选择端 */
#define RS_PERIPH SYSCTL_PERIPH_GPIOB
#define RS_PORT GPIO_PORTB_BASE
#define RS_PIN GPIO_PIN_0
/*定义液晶读写控制端*/
#define RW_PERIPH SYSCTL_PERIPH_GPIOB
#define RW_PORT GPIO_PORTB_BASE
#define RW_PIN GPIO_PIN_1
/*液晶使能端*/
#define E_PERIPH SYSCTL_PERIPH_GPIOB
#define E_PORT GPIO_PORTB_BASE
#define E_PIN GPIO_PIN_2
/*数据模式选择*/
#define RST_PERIPH SYSCTL_PERIPH_GPIOB
#define RST_PORT GPIO_PORTB_BASE
#define RST_PIN GPIO_PIN_3
/*数据模式选择*/
#define RD_PERIPH SYSCTL_PERIPH_GPIOB
#define RD_PORT GPIO_PORTB_BASE
#define RD_PIN GPIO_PIN_4
unsigned char image[3200]={ /* 0X00,0X10,0X28,0X00,0X28,0X00,0X01,0X1B, */
图片代码就省去了，在附件里面，大家可以下载下来看看！！！！！
};
下面的模式都是固定的了，凡是彩色液晶里面的都有，所以这些可以不用修改甚至不用看了，只要会调用函数就行了！
void delayms(int count) // /* X1ms */
{
SysCtlDelay(SysCtlClockGet()/6000);
}
//条件编译-8位数据模式
void LCD_Writ_Bus(char VH,char VL) //并行数据写入函数
{
GPIOPinWrite(DBS_PORT,DBS_PINS,VH);
LCD_WR0;
LCD_WR1;
GPIOPinWrite(DBS_PORT,DBS_PINS,VL);
LCD_WR0;
LCD_WR1;
}
void LCD_Write_COM(char VH,char VL) //发送命令
{
LCD_RS0;
LCD_Writ_Bus(VH,VL);
}
void LCD_Write_DATA(char VH,char VL) //发送数据
{
LCD_RS1;
LCD_Writ_Bus(VH,VL);
}
void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
{
LCD_Write_COM(0x00,0x20);LCD_Write_DATA(x1>>8,x1); //设置X坐标位置
LCD_Write_COM(0x00,0x21);LCD_Write_DATA(y1>>8,y1); //设置Y坐标位置
LCD_Write_COM(0x00,0x50);LCD_Write_DATA(x1>>8,x1); //开始X
LCD_Write_COM(0x00,0x52);LCD_Write_DATA(y1>>8,y1); //开始Y
LCD_Write_COM(0x00,0x51);LCD_Write_DATA(x2>>8,x2); //结束X
LCD_Write_COM(0x00,0x53);LCD_Write_DATA(y2>>8,y2); //结束Y
LCD_Write_COM(0x00,0x22);
}
void LCD_Init(void)
{
LCD_REST1;
delayms(5);
LCD_REST0;
delayms(5);
LCD_REST1;
LCD_CS1;
LCD_RD1;
LCD_WR1;
delayms(5);
LCD_CS0; //打开片选使能
//************* Start Initial Sequence **********//
LCD_Write_COM(0x00,0xE5); LCD_Write_DATA(0x78,0xF0); // set SRAM internal timing
LCD_Write_COM(0x00,0x01); LCD_Write_DATA(0x01,0x00); // set SS and SM bit
LCD_Write_COM(0x00,0x02); LCD_Write_DATA(0x07,0x00); // set 1 line inversion
LCD_Write_COM(0x00,0x03); LCD_Write_DATA(0x10,0x30); // set GRAM write direction and BGR=1.
LCD_Write_COM(0x00,0x04); LCD_Write_DATA(0x00,0x00); // Resize register
LCD_Write_COM(0x00,0x08); LCD_Write_DATA(0x02,0x07); // set the back porch and front porch
LCD_Write_COM(0x00,0x09); LCD_Write_DATA(0x00,0x00); // set non-display area refresh cycle ISC[3:0]
LCD_Write_COM(0x00,0x0A); LCD_Write_DATA(0x00,0x00); // FMARK function
LCD_Write_COM(0x00,0x0C); LCD_Write_DATA(0x00,0x00); // RGB interface setting
LCD_Write_COM(0x00,0x0D); LCD_Write_DATA(0x00,0x00); // Frame marker Position
LCD_Write_COM(0x00,0x0F); LCD_Write_DATA(0x00,0x00); // RGB interface polarity
//*************Power On sequence ****************//
LCD_Write_COM(0x00,0x10); LCD_Write_DATA(0x00,0x00); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_Write_COM(0x00,0x11); LCD_Write_DATA(0x00,0x07); // DC1[2:0], DC0[2:0], VC[2:0]
LCD_Write_COM(0x00,0x12); LCD_Write_DATA(0x00,0x00); // VREG1OUT voltage
LCD_Write_COM(0x00,0x13); LCD_Write_DATA(0x00,0x00); // VDV[4:0] for VCOM amplitude
LCD_Write_COM(0x00,0x07); LCD_Write_DATA(0x00,0x01);
delayms(50); // Dis-charge capacitor power voltage
LCD_Write_COM(0x00,0x10); LCD_Write_DATA(0x10,0x90); // 1490//SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_Write_COM(0x00,0x11); LCD_Write_DATA(0x02,0x27); // DC1[2:0], DC0[2:0], VC[2:0]
delayms(50); // Delay 50ms
LCD_Write_COM(0x00,0x12); LCD_Write_DATA(0x00,0x1F); //001C// Internal reference voltage= Vci;
delayms(50); // Delay 50ms
LCD_Write_COM(0x00,0x13); LCD_Write_DATA(0x15,0x00); //0x1000//1400 Set VDV[4:0] for VCOM amplitude 1A00
LCD_Write_COM(0x00,0x29); LCD_Write_DATA(0x00,0x27); //0x0012 //001a Set VCM[5:0] for VCOMH //0x0025 0034
LCD_Write_COM(0x00,0x2B); LCD_Write_DATA(0x00,0x0D); // Set Frame Rate 000C
delayms(50); // Delay 50ms
LCD_Write_COM(0x00,0x20); LCD_Write_DATA(0x00,0x00); // GRAM horizontal Address
LCD_Write_COM(0x00,0x21); LCD_Write_DATA(0x00,0x00); // GRAM Vertical Address
// ----------- Adjust the Gamma Curve ----------//
LCD_Write_COM(0x00,0x30); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x31); LCD_Write_DATA(0x07,0x07);
LCD_Write_COM(0x00,0x32); LCD_Write_DATA(0x03,0x07);
LCD_Write_COM(0x00,0x35); LCD_Write_DATA(0x02,0x00);
LCD_Write_COM(0x00,0x36); LCD_Write_DATA(0x00,0x08);//0207
LCD_Write_COM(0x00,0x37); LCD_Write_DATA(0x00,0x04);//0306
LCD_Write_COM(0x00,0x38); LCD_Write_DATA(0x00,0x00);//0102
LCD_Write_COM(0x00,0x39); LCD_Write_DATA(0x07,0x07);//0707
LCD_Write_COM(0x00,0x3C); LCD_Write_DATA(0x00,0x02);//0702
LCD_Write_COM(0x00,0x3D); LCD_Write_DATA(0x1D,0x04);//1604
//------------------ Set GRAM area ---------------//
LCD_Write_COM(0x00,0x50); LCD_Write_DATA(0x00,0x00); // Horizontal GRAM Start Address
LCD_Write_COM(0x00,0x51); LCD_Write_DATA(0x00,0xEF); // Horizontal GRAM End Address
LCD_Write_COM(0x00,0x52); LCD_Write_DATA(0x00,0x00); // Vertical GRAM Start Address
LCD_Write_COM(0x00,0x53); LCD_Write_DATA(0x01,0x3F); // Vertical GRAM Start Address
LCD_Write_COM(0x00,0x60); LCD_Write_DATA(0xA7,0x00); // Gate Scan Line
LCD_Write_COM(0x00,0x61); LCD_Write_DATA(0x00,0x01); // NDL,VLE, REV
LCD_Write_COM(0x00,0x6A); LCD_Write_DATA(0x00,0x00); // set scrolling line
//-------------- Partial Display Control ---------//
LCD_Write_COM(0x00,0x80); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x81); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x82); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x83); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x84); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x85); LCD_Write_DATA(0x00,0x00);
//-------------- Panel Control -------------------//
LCD_Write_COM(0x00,0x90); LCD_Write_DATA(0x00,0x10);
LCD_Write_COM(0x00,0x92); LCD_Write_DATA(0x06,0x00);
LCD_Write_COM(0x00,0x07); LCD_Write_DATA(0x01,0x33); // 262K color and display ON
LCD_CS1; //关闭片选使能
}
void Pant(char VH,char VL)
{
int i,j;
LCD_CS0; //打开片选使能
Address_set(0,0,240,320);
for(i=0;i<320;i++)
{
for (j=0;j<240;j++)
{
LCD_Write_DATA(VH,VL);
}
}
LCD_CS1; //关闭片选使能
}
void init()
{
clockInit(); //系统时钟设置
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
SysCtlPeriEnable(DBS_PERIPH);
GPIOPinTypeOut(DBS_PORT,DBS_PINS); //设置、使能DBS端口
SysCtlPeriEnable(RS_PERIPH);
GPIOPinTypeOut(RS_PORT,RS_PIN); //设置、使能RS端口
SysCtlPeriEnable(RW_PERIPH);
GPIOPinTypeOut(RW_PORT,RW_PIN); //设置、使能RW端口
SysCtlPeriEnable(E_PERIPH);
GPIOPinTypeOut(E_PORT,E_PIN); //设置、使能E端口
SysCtlPeriEnable(RST_PERIPH);
GPIOPinTypeOut(RST_PORT,RST_PIN); //设置、使能PBS端口
}
int main()
{
unsigned char k,j,i;
init();
while(1)
{
LCD_Init(); //TFT初始化
Pant(0xff,0xff); //TFT清屏
LCD_CS0; //打开片选使能
for(k=0;k<8;k++) //刷图片
{
for(j=0;j<6;j++)
{
Address_set(40*j,40*k,40*j+39,40*k+39);
for(i=0;i<1600;i++)
{
LCD_Write_DATA(image[i*2+1],image[i*2]);
}
}
}
LCD_CS1; //关闭片选使能
delayms(3000);
}
}
就是这样的一副图片，刷新速度比起单片机好太多了！
我把所有的代码代码都放到下面了，大家可以下载来看看，等有机会再上传一个视频看看，有什么不足的地方大家可以指出来。 |
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