12864程序基于MSP.docx

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1、12864程序基于MSP/*/初始化IO口子程序/*void Port_InitP4SEL = 0x00;P4DIR = 0xFF;P5SEL = 0x00;P5DIR|= BIT0 + BIT1 + BIT5 + BIT6 + BIT7;PSB_SET; /液晶并口方式RST_SET;/*/显示屏命令写入函数/*void LCD_write_com(unsigned char com) RS_CLR;RW_CLR;EN_SET;DataPort = com;delay_ms(5);EN_CLR;/*/显示屏数据写入函数/*void LCD_write_data(unsigned char d

2、ata) RS_SET;RW_CLR;EN_SET;DataPort = data;delay_ms(5);EN_CLR;/*/显示屏清空显示/*void LCD_clear(void) LCD_write_com(0x01);delay_ms(5);/*/函数名称：DisplayCgrom(uchar hz)显示CGROM里的汉字/*void DisplayCgrom(uchar addr,uchar *hz)LCD_write_com(addr);delay_ms(5);while(*hz != 0) LCD_write_data(*hz);hz+;delay_ms(5); /*/显示屏单

3、字符写入函数/*void LCD_write_char(unsigned char x,unsigned char y,unsigned char data) if (y = 0) LCD_write_com(0x80 + x); /第一行显示if(y = 1) LCD_write_com(0x90 + x); /第二行显示if (y = 2) LCD_write_com(0x88 + x); /第三行显示if(y = 3) LCD_write_com(0x98 + x); /第四行显示delay_ms(1);LCD_write_data(data);delay_ms(1);/*/显示屏字符串

4、写入函数/*void LCD_write_str(unsigned char x,unsigned char y,unsigned char *s) if (y = 0) LCD_write_com(0x80 + x); /第一行显示if(y = 1) LCD_write_com(0x90 + x); /第二行显示if (y = 2) LCD_write_com(0x88 + x); /第三行显示if(y = 3) LCD_write_com(0x98 + x); /第四行显示delay_ms(10);while (*s) LCD_write_data( *s);delay_ms(5);s +

5、;/*/显示屏初始化函数/*void LCD_init(void) LCD_write_com(FUN_MODE);/显示模式设置delay_ms(5);LCD_write_com(FUN_MODE);/显示模式设置delay_ms(5);LCD_write_com(CURSE_DIR);/显示模式设置delay_ms(5);LCD_write_com(DISPLAY_ON);/显示开delay_ms(5);LCD_write_com(CLEAR_SCREEN);/清屏delay_ms(5);void display_desk /显示电压字符LCD_write_str(0,0,设定电压：);LCD_write_str(0,1,实际电压：);LCD_write_str(0,2,实际电流：);