程序
單片機源程序如下:
- #include <msp430.h>
- #include <string.h>
- #include <LCD1602.h>
- #define CPU_F ((double)8000000)
- #define delay_us(x) __delay_cycles((long)(CPU_F*(double)x/1000000.0))
- #define delay_ms(x) __delay_cycles((long)(CPU_F*(double)x/1000.0))
- #define DataDir P3DIR
- #define DataPort P3OUT
- #define Busy 0x80
- #define CtrlDir P1DIR
- #define CLR_RS P1OUT&=~BIT3; //RS = P1.3
- #define SET_RS P1OUT|=BIT3;
- #define CLR_RW P1OUT&=~BIT4; //RW = P1.4
- #define SET_RW P1OUT|=BIT4;
- #define CLR_EN P1OUT&=~BIT5; //EN = P1.5
- #define SET_EN P1OUT|=BIT5;
- void Disp1Char(unsigned char data)
- {
- LCD1602_WriteDATA(data);
- }
- void DispStr(unsigned char *ptr)
- {
- unsigned char i,n;
- n=strlen(ptr);
- for (i=0;i<n;i++)
- {
- Disp1Char(ptr[i]);
- }
- }
- void LCD1602_WriteCMD(unsigned char cmd)
- {
- CLR_EN;
- CLR_RS; //指令
- CLR_RW; //寫
- DataPort=cmd; //指令數據傳到P0口待發送給LCD1602
- delay_ms(1);
- SET_EN; //LCD1602使能口
- delay_ms(10);
- CLR_EN; //產生下降沿
- delay_ms(10);
- }
- void LCD1602_WriteDATA(unsigned char Data)
- {
- DataPort=Data;
- SET_RS;
- CLR_RW;
- SET_EN;
- CLR_EN;
- delay_ms(10);
- }
- void LCD1602_Initi()
- {
- CtrlDir |= 0x38; //控制線端口設為輸出狀態
- DataDir = 0xff;
- LCD1602_WriteCMD(0x38); // 置功能，8位總線，雙行顯示，顯示5X7的點陣字符
- LCD1602_WriteCMD(0x0f); // 顯示開關控制,開顯示, 有光標,閃爍
- LCD1602_WriteCMD(0x06); // 光標和顯示位置設置, 光標移動方向右移,屏幕上所有文字不動
- LCD1602_WriteCMD(0x01); // 清顯示，指令碼01H，光標復位到地址00H位置
- delay_ms(10);
- }
所有資料51hei提供下載:
workspace.zip
(65.3 KB, 下載次數: 41)
2019-3-11 09:14 上傳
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