ATmega16DS1302.docx

1、ATmega16DS1302/* * DS1302.c * * Created: 2015/2/18 13:30:42 * Author: Administrator */ /*/* 常用头文件及宏定义 */*/#include #include /延时文件#include /睡眠文件#include /中断文件#include /eeprom#define BIT(x) (1=0;i-) bl=ai; if (bl&1) SID_H; else SID_L; CLK; a=shuju&0xf0; for (i=7;i=0;i-) bl=ai; if (bl&1) SID_H; else SI

2、D_L; CLK; a=shuju=0;i-) bl=ai; if (bl&1) SID_H; else SID_L; CLK; CS_L;void lcd_write_string(char *str) /写字符串函数 while(*str!=0) lcd_write_char(*str); str+; void lcd_write_zhiling(uchar zhiling) /写指令 _delay_ms(1); uchar bl,a; int i; CS_H; a=0xf8; for (i=7;i=0;i-) bl=ai; if (bl&1) SID_H; else SID_L; CLK

3、; a=zhiling&0xf0; for (i=7;i=0;i-) bl=ai; if (bl&1) SID_H; else SID_L; CLK; a=zhiling=0;i-) bl=ai; if (bl&1) SID_H; else SID_L; CLK; CS_L;/ 指令集宏定义 /#define ZHILINGJI_JIBEN lcd_write_zhiling(0x30) /基本指令集#define QINGPING_WENZI lcd_write_zhiling(0x01) /文字清屏void chushihua_12864() PORT_KZ|=BIT(4); DDR_KZ

4、=0xff; RESET; ZHILINGJI_JIBEN; /基本指令集 lcd_write_zhiling(0x08); /显示关 lcd_write_zhiling(0x01); /清显示 lcd_write_zhiling(0x02); /地址归位 lcd_write_zhiling(0x10); /设置游标 lcd_write_zhiling(0x0c); /开显示/*/* 矩阵键盘积木块 */*/* 引脚说明 */* 键盘PD0PD3行 */* 键盘PD4PD7列 */* 键盘宏定义 */#define DDR_JIANPAN DDRD#define PORT_JIANPAN PO

5、RTD#define PIN_JIANPAN PINDvoid chushihua_jianpan() /键盘初始化函数 DDR_JIANPAN=0; /输入态 PORT_JIANPAN=0xff; /启用上拉电阻int jiance() /检测函数/行扫描 DDR_JIANPAN=0xf0; /行扫描/03输入态/47输出态 PORT_JIANPAN=0x0f; /03启用上拉电阻/47输出低电平 _delay_ms(1); if (PIN_JIANPAN|0xf0)=0xff)/屏蔽高四位/读取低四位状态 return 0; else return 1; int shibie_hang()

6、 /行识别状态（与检测函数扫描一致，不用切换状态） switch(PIN_JIANPAN|0xf0) case 0xfe:return 1;break; case 0xfd:return 2;break; case 0xfb:return 3;break; case 0xf7:return 4;break; default:return 0; int shibie_lie() /列识别状态，需要切换扫描状态 DDR_JIANPAN=0x0f; /行扫描/03输出态/47输入态 PORT_JIANPAN=0xf0; /03输出低电平/47启用上拉电阻 _delay_ms(1); switch(P

7、IN_JIANPAN|0x0f) /屏蔽低四位/读取高四位状态 case 0xef:return 1;break; case 0xdf:return 2;break; case 0xbf:return 3;break; case 0x7f:return 4;break; default:return 0; int yima(int hang,int lie) /计算按键标号函数 int jianma=0; jianma=(hang-1)*4+lie; /计算按键标号 return jianma;uchar anjian() uchar hang=0,lie=0,jianma=0;/行列值变量

8、if (jiance() /是否有按键按下 _delay_ms(10); /消除抖动干扰 if (jiance() hang=shibie_hang(); /获取行值 lie=shibie_lie(); /获取列值 jianma=yima(hang,lie);/获取键码 while(jiance(); /等待按键放开 return jianma; return 0;/*/* DS1302程序 */*/* 引脚说明 */* PC 5 RESRT PC 6 I/O PC7 SCLK */* 宏定义 */#define DDR_1302 DDRC#define PORT_1302 PORTC#def

9、ine PIN_1302 PINC#define RESET_H PORT_1302|=BIT(5)#define RESET_L PORT_1302&=BIT(5)#define IO_H PORT_1302|=BIT(6)#define IO_L PORT_1302&=BIT(6)#define SCLK_H PORT_1302|=BIT(7)#define SCLK_L PORT_1302&=BIT(7)#define MIAO_READ 0x81#define MIN_READ 0x83void ds1302_read() uchar i; for (i=0;i6;i+) ai=0;

10、RESET_H; _delay_us(10); for (i=0;i8;i+) if (0x81&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; DDR_1302&=BIT(6); PORT_1302|=BIT(6); for (i=0;i4;i+) _delay_us(10); if (PIN_1302&BIT(6) a1|=BIT(i); SCLK_H; SCLK_L; for (i=0;i4;i+) _delay_us(10); if (PIN_1302&BIT(6) a0|=BIT(i); SCLK_H; SCLK_L; RESET_L; DDR_130

11、2|=BIT(6); PORT_1302&=BIT(6); RESET_H; _delay_us(10); for (i=0;i8;i+) if (0x83&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; DDR_1302&=BIT(6); PORT_1302|=BIT(6); for (i=0;i4;i+) _delay_us(10); if (PIN_1302&BIT(6) a3|=BIT(i); SCLK_H; SCLK_L; for (i=0;i4;i+) _delay_us(10); if (PIN_1302&BIT(6) a2|=BIT(i); SC

12、LK_H; SCLK_L; RESET_L; DDR_1302|=BIT(6); PORT_1302&=BIT(6); RESET_H; _delay_us(10); for (i=0;i8;i+) if (0x85&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; DDR_1302&=BIT(6); PORT_1302|=BIT(6); for (i=0;i4;i+) _delay_us(10); if (PIN_1302&BIT(6) a5|=BIT(i); SCLK_H; SCLK_L; for (i=0;i4;i+) _delay_us(10); if (

13、PIN_1302&BIT(6) a4|=BIT(i); SCLK_H; SCLK_L; RESET_L; DDR_1302|=BIT(6); PORT_1302&=BIT(6); if (a4&BIT(0) a5+=10; if (a4&BIT(1) a5+=12; void ds1302_write(uchar b) uchar i,shi=0; RESET_H; _delay_us(10); for (i=0;i8;i+)/保护寄存器 if (0x8e&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; IO_L; for (i=0;i8;i+)/去保护 SCL

14、K_H; SCLK_L; RESET_L; / RESET_H; _delay_us(10); for (i=0;i12) shi-=12; shi%=10; for (i=0;i12) shi-=12; if (shi9) shi=0x0b; else shi=0x0a; else if (shi9) shi=0x09; else shi=0x08; for (i=0;i4;i+) if (shi&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; RESET_L; / RESET_H; _delay_us(10); for (i=0;i8;i+) if (0x8

15、2&BIT(i)/分钟寄存器 IO_H; else IO_L; SCLK_H; SCLK_L; for (i=0;i4;i+) if (b3&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; for (i=0;i4;i+) if (b2&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; RESET_L; / RESET_H; _delay_us(10); for (i=0;i8;i+) if (0x80&BIT(i)/秒钟寄存器 IO_H; else IO_L; SCLK_H; SCLK_L; for (i=0;i4;i+) if (

16、b5&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; for (i=0;i4;i+) if (b4&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; RESET_L; / RESET_H; _delay_us(10); for (i=0;i8;i+)/保护寄存器 if (0x8e&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; for (i=0;i8;i+)/加保护 if (0x80&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; RESET_L;void qidong

17、_1302() uchar i,c; ds1302_read(); RESET_H; _delay_us(10); for (i=0;i8;i+)/保护寄存器 if (0x8e&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; IO_L; for (i=0;i8;i+)/去保护 SCLK_H; SCLK_L; RESET_L; RESET_H; _delay_us(10); for (i=0;i8;i+) if (0x80&BIT(i)/秒钟寄存器 IO_H; else IO_L; SCLK_H; SCLK_L; for (i=0;i4;i+) if (a1&BI

18、T(i) IO_H; else IO_L; SCLK_H; SCLK_L; c=a0&(BIT(3); for (i=0;i4;i+) if (c&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; RESET_L; RESET_H; _delay_us(10); for (i=0;i8;i+)/保护寄存器 if (0x8e&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; for (i=0;i8;i+)/加保护 if (0x80&BIT(i) IO_H; else IO_L; SCLK_H; SCLK_L; RESET_L;void chushih