lcd12864.c

字符型LCD12864 MSP430程序

//  字符型LCD12864 MSP430程序

 

/**********************************************************/
//MSP430 Advanced Developping Components - [LCD12864A_430.C]
////->>> http://www.just430.cn
////->>> tel :[phone]
/**********************************************************/
//MSP430高级实验开发组件 - LCD12864(字符型)液晶显示驱动
/*********************************************************/

#include

#define LCD_DI   BIT7   //LCD_DI -> P2.7
#define LCD_DI_DIR  P2DIR
#define LCD_DI_LO  P2OUT &= ~LCD_DI
#define LCD_DI_HI  P2OUT |= LCD_DI

#define LCD_RW   BIT6   //LCD_RW -> P2.6
#define LCD_RW_DIR  P2DIR
#define LCD_RW_LO  P2OUT &= ~LCD_RW
#define LCD_RW_HI  P2OUT |= LCD_RW

#define LCD_EN   BIT5   //LCD_EN -> P2.5
#define LCD_EN_DIR  P2DIR
#define LCD_EN_LO  P2OUT &= ~LCD_EN
#define LCD_EN_HI  P2OUT |= LCD_EN

#define LCD_PSB   BIT0   //LCD_CS1 -> P6.0//PSB
#define LCD_PSB_DIR  P6DIR
#define LCD_PSB_LO  P6OUT &= ~LCD_PSB
#define LCD_PSB_HI  P6OUT |= LCD_PSB

#define LCD_RST   BIT2   //LCD_RST -> P6.2
#define LCD_RST_DIR  P6DIR
#define LCD_RST_LO  P6OUT &= ~LCD_RST
#define LCD_RST_HI  P6OUT |= LCD_RST

#define LCD_DATA_IN  P5IN
#define LCD_DATA_OUT  P5OUT
#define LCD_DATA_DIR  P5DIR

void LCD_Init(void);
void LCD_CheckBusy(void);
void LCD_Delayt(unsigned int dtime);
void LCD_WriteComm(unsigned char wdata);
void LCD_WriteByte(unsigned char wdata);
void LCD_SetXY(unsigned char X, unsigned char Y);
void LCD_WriteDEC(unsigned char X, unsigned char Y, unsigned char wdata);
void LCD_WriteString(unsigned char X, unsigned char Y, unsigned char *String);

unsigned char *aaa = "这是第一行吗？";

/*****************************************
void main(void) {
 WDTCTL = WDTPW + WDTHOLD;
 
 LCD_Init();
 LCD_WriteComm(0x01);
 
 while(1) {
  LCD_WriteString(1,1,aaa);
  LCD_Delayt(50000);LCD_Delayt(50000);LCD_Delayt(50000);LCD_Delayt(50000);
  LCD_WriteString(1,1,"这是第一行的！");
  LCD_Delayt(50000);LCD_Delayt(50000);LCD_Delayt(50000);LCD_Delayt(50000);
 }
}
*****************************************/

void LCD_Delayt(unsigned int dtime) {
 unsigned int itemp;
 for(itemp=0;itemp
}

void LCD_Init(void) {
 LCD_PSB_DIR |= LCD_PSB;   //PSB -> 并行模式
 LCD_PSB_HI;
 
 LCD_RST_DIR |= LCD_RST;   //RST -> 复位输出
 LCD_RST_LO;    //复位状态
 LCD_Delayt(1000);
 
 LCD_DI_DIR |= LCD_DI;
 LCD_DI_LO;
 LCD_RW_DIR |= LCD_RW;
 LCD_RW_LO;
 LCD_EN_DIR |= LCD_EN;
 LCD_EN_LO;
 
 LCD_Delayt(1000);
 LCD_RST_HI;    //正常状态
 
 LCD_WriteComm(0x30);
 LCD_WriteComm(0x0c);
 LCD_WriteComm(0x01);
 LCD_WriteComm(0x02);
 LCD_WriteComm(0x06);
}

void LCD_CheckBusy(void) {
 unsigned char Flag;
 LCD_DI_LO;
 LCD_RW_HI;
 LCD_DATA_DIR = 0x00;
 do {
  LCD_EN_HI;
  Flag = LCD_DATA_IN;
  LCD_EN_LO;
 } while(Flag & 0x80);
 LCD_DATA_DIR = 0xFF;
}

void LCD_WriteComm(unsigned char wdata) {
 LCD_CheckBusy();
 
 LCD_DI_LO;
 LCD_RW_LO;
 LCD_EN_HI;
 
 LCD_DATA_OUT = wdata;
 LCD_EN_LO;
}

void LCD_WriteByte(unsigned char wdata) {
 LCD_CheckBusy();
 
 LCD_DI_HI;
 LCD_RW_LO;
 LCD_EN_HI;
 
 LCD_DATA_OUT = wdata;
 LCD_EN_LO;
}


void LCD_SetXY(unsigned char X, unsigned char Y) {
 switch(Y) {
  case 1:
   LCD_WriteComm(0x7F + X);
   break;
  case 2:
   LCD_WriteComm(0x8F + X);
   break;
  case 3:
   LCD_WriteComm(0x87 + X);
   break;
  case 4:
   LCD_WriteComm(0x97 + X);
 }
}

void LCD_WriteDEC(unsigned char X, unsigned char Y, unsigned char wdata) {
 LCD_SetXY(X,Y);
 LCD_WriteByte(wdata);
}

void LCD_WriteString(unsigned char X, unsigned char Y, unsigned char *String) {
     unsigned char temp;
 LCD_SetXY(X,Y);
 temp = *String;
 while(temp!=0) {
      LCD_WriteByte(temp);
      temp = *(++String);
 } 
}