STC12C5A60(32)S2单片机AD采样-LCD1602液晶显示程序.doc

/*STC12C5A32S2或STC12C5A60S2等单片机ADC采样功能示例*1、P1口为8路10位AD转换口2、用LCD1602显示：数据口为P0，RW接P2.5， RS接P2.6，EN接P2.73、亲手编写、亲自调试，完全可行*/#include#include#define uchar unsigned char#define uint unsigned intvoid delay_ms(uint x);/ms延时子函数/*stc12c5a32s2相关的寄存器说明*/sfr P1ASF = 0x9D; /P1口模数转换功能控制寄存器sfr ADC_CONTR = 0xBC;/AD转换控制寄存器sfr ADC_RES = 0xBD;/AD转换结果寄存器高位sfr ADC_RESL = 0xBE;/AD转换结果寄存器低位sfr AURX1 = 0xA2;/AD转换结果存储方式控制位/*P1ASF寄存器：8位，对应P1口8根线，用于指定那根线用作ADC功能*哪根线用作ADC就应置相应的位为1，注意：不能位寻址*/#define ADC_POWER 0x80/ADC电源开#define ADC_SPEED 0x40/设置为180个周期，ADC一次#define ADC_START 0x08/ADC启动控制位设为开#define ADC_FLAG 0X10/ADC结束标志位/*第n通道ADC初始化函数*/void ADC_int(uchar n) n &= 0x07; /确保是第07通道AURX1 |= 0x04; /转换结果存储方式：高2位放ADC_RES，低8位放ADC_RESLP1ASF = 10;x-) for(y=0;y125;y+);/*以下是与LCD1602显示相关的定义和函数声明*/#define lcd_data_port P0 /1602数据口接P0sbit lcd_rs = P26; /RS接P2.6（=0，是命令；=1，是数据）sbit lcd_rw = P25; /RW接P2.5（=0，是写；=1，是读）sbit lcd_en = P27; /EN接P2.7void lcd_write_com(uchar lcd_com);/写命令子函数void lcd_write_data(uchar lcd_data);/写数据子函数void lcd_int();/1602初始化void lcd_locate(uchar x,uchar y);/显示定位（行，列）void lcd_4_char(uint data_4char);/显示4位整型函数/*写命令子函数*/void lcd_write_com(uchar lcd_com)lcd_data_port = lcd_com;/指令送到数据接口 lcd_rs = 0;/选择命令lcd_rw = 0;/选择写lcd_en = 0;delay_ms(1);lcd_en = 1;delay_ms(1);lcd_en = 0;/*写数据子函数*/void lcd_write_data(uchar lcd_data)lcd_data_port = lcd_data; /数据送到数据接口lcd_rs = 1; /选择数据lcd_rw = 0; /选择写lcd_en = 0;delay_ms(1);lcd_en = 1;delay_ms(1);lcd_en = 0;/*LCD1602液晶初始化*/void lcd_int()lcd_rs = 0; /选择命令lcd_rw = 0; /选择写lcd_en = 0;lcd_write_com(0x38); /设1602工作于16*2、5*7,8位数据接口模式lcd_write_com(0x0c); /开显示，不显示光标lcd_write_com(0x06); /写一个字符后，光标自动加一lcd_write_com(0x01); /清屏/*显示定位子函数（行，列）*/void lcd_locate(uchar x,uchar y)uchar add;if(x = 1) add = 0x80;if(x = 2) add = 0x80+0x40;lcd_write_com(add+y-1);/*显示4位整数子函数*/void lcd_4_char(uint data_4_char)uchar lcd_table4;lcd_table1 = data_4_char / 1000; /获得千位lcd_table2 = data_4_char % 1000 /100;/获得百位lcd_table3 = data_4_char % 100 / 10; /获得十位lcd_table4 = data_4_char % 10; /获得个位lcd_write_data(lcd_table1 + 0x30); /显示千位lcd_write_data(lcd_table2 + 0x30); /显示百位lcd_write_data(lcd_table3 + 0x30); /显示十位lcd_write_data(lcd_table4 + 0x30); /显示个位/*主函数*/void main()lcd_int();/液晶初始化lcd_write_com(0x01);/液晶清屏while(1)uint ad_0 = 0;ADC_int(0);