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xyz549040622

1楼-- · 2019-07-17 14:01

:lol我上个51的

/***************************************************************************/
/* DEMO3231.C */
/***************************************************************************/
#include <stdio.h> /* Prototypes for I/O functions */
#include <DS5000.h> /* Register declarations for DS5000 */
/************************* bit definitions ****************************/
sbit scl = P0^0; /* I2C pin definitions */
sbit sda = P0^1;
sbit E = P1^0; /* DCM LCD module control signal definitions */
sbit RS = P1^1;
sbit RW = P1^2;
sbit CLK = P2^5; /* DS1267 control signal definitions */
sbit RSTb = P2^6;
sbit DQ = P2^7;
sbit int0 = P3^2;
/**************************** defines *******************************/
#define ADDRTC 0xd0 /* DS3231 slave address (write) */
#define ACK 0
#define NACK 1
/*********************** Function Prototypes **************************/
void start();
void stop();
uchar i2cwrite(uchar d);
uchar i2cread(char);
void wr_dsp_dat(uchar);
void wr_dsp_ins(uchar);
uchar rd_dsp_ins();
void hex2asc(uchar);
void dsp_adj(uchar pos);
void init_dsp();
void writebyte();
void initialize_DS3231();
void disp_regs();
void rd_temp();
void frq_out_tog();
void init_alrm();
void comm_init();
/************************* Global Variables ***************************/
xdata uchar sec, min, hr, dy, dt, mn, yr;
/**************************** functions ******************************/
void start() /* --------- Initiate start condition ---------- */
{
sda = 1; scl = 1;
sda = 0;
}
void stop() /* ---------- Initiate stop condition ----------- */
{
sda = 0; sda = 0;
scl = 1; scl = 1; sda = 1;
}
uchar i2cwrite(uchar d) /* ----------------------------- */
{
uchar i;
scl = 0;
for (i = 0;i < 8; i++)
{
if (d & 0x80)
sda = 1; /* Send the msbits first */
else
sda = 0;
scl = 0;
scl = 1;
d = d << 1; /* do shift here to increase scl high time */
scl = 0;
}
sda = 1; /* Release the sda line */
scl = 0;
scl = 1;
i = sda;
if (i) printf("Ack bit missing %02X ",(unsigned int)d);
scl = 0;
return(i);
}
uchar i2cread(char b) /* ----------------------------------- */
{
uchar i, d;
d = 0;
sda = 1; /* Let go of sda line */
scl = 0;
for (i = 0; i < 8; i++) /* read the msb first */
{
scl = 1;
d = d << 1;
d = d | (unsigned char)sda;
scl = 0;
}
sda = b; /* low for ack, high for nack */
scl = 1;
scl = 0;
sda = 1; /* Release the sda line */
return d;
}
void wr_dsp_dat(uchar dat) /* -------- write one byte to the display --------- */
{
P0 = dat;
RS = 1; /* data register */
RW = 0; /* write */
E = 1;
E = 0; /* latch data in */
}
void wr_dsp_ins(uchar dat) /* ---- write one byte to the display instruction ----- */
{
P0 = dat;
RS = 0; /* instruction register */
RW = 0; /* write */
E = 1;
E = 0; /* latch data in */
}
uchar rd_dsp_ins() /* ---- read one byte from the instruction registers ----- */
{
uchar dat;
P0 = 0xff; /* set up for read */
RS = 0; /* instruction register */
RW = 1; /* read */
E = 1;
dat = P0;
E = 0;
return(dat);
}
void init_dsp() /* -------- initialize DMC-16207 LCD display ------- */
{
while((rd_dsp_ins() & 0x80)); /* wait for display */
wr_dsp_ins(0x38); /* Set 8-bit data, 2-line display, 5X7 font */
while((rd_dsp_ins() & 0x80));
wr_dsp_ins(0x0c); /* Display on, cursor off, blink off */
while((rd_dsp_ins() & 0x80));
wr_dsp_ins(0x06); /* Entry mode set: increment, no display shift */
while((rd_dsp_ins() & 0x80));
wr_dsp_ins(0x01); /* clear display */
while((rd_dsp_ins() & 0x80));
wr_dsp_ins(0x80); /* move to start of line 1 */
while((rd_dsp_ins() & 0x80));
wr_dsp_ins(0x50); /* Set CG RAM address */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x07); /* write 1st line of custom char to CG RAM */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x05); /* write 2nd line */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x07); /* write 3rd line */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x00); /* write 4th line */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x00); /* write 5th line */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x00); /* write 6th line */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x00); /* write 7th line */
while((rd_dsp_ins() & 0x80));
}
void hex2asc(uchar hex) /* -- convert the upper and lower nibbles to 2 ascii characters -- */
{
if( ( (hex & 0xf0) >> 4) < 0x0a)
wr_dsp_dat( ( (hex & 0xf0) >> 4) + 48 ); /* prints 0-9 */
else
wr_dsp_dat( ( (hex & 0xf0) >> 4) + 55 ); /* prints A-F */
while((rd_dsp_ins() & 0x80));
if( (hex & 0x0f) < 0x0a)
wr_dsp_dat( (hex & 0x0f) + 48 );
else
wr_dsp_dat( (hex & 0x0f) + 55 );
while((rd_dsp_ins() & 0x80));
}
void dsp_adj(uchar pos) /* ------ adjust contrast on LCD display ------- */
{
char inc;
RSTb = CLK = 0; /* initialize for 1st pass */
RSTb = 1; /* enable DS1267 */
DQ = 0; /* write stack select bit */
CLK = 1; /* toggle clk with data valid */
CLK = 0;
for (inc = 7; inc >= 0; inc--) /* write wiper 0 */
{
DQ = ((pos >> inc) & 0x01); /* shift x bits left */
CLK = 0; /* toggle clk with data valid */
CLK = 1;
}
for (inc = 7; inc >= 0; inc--) /* write wiper 1 */
{
DQ = ((pos >> inc) & 0x01); /* shift x bits left */
CLK = 0; /* toggle clk with data valid */
CLK = 1;
}
RSTb = 0; /* reset the 1267 (/RST & CLK low) */
CLK = 0;
}
void writebyte() /* ----------------------------------------------- */
{
uchar Add, Data;
printf(" ADDRESS (hex):"); /* Get Address & Data */
scanf("%bx", &Add);
printf("DATA (hex):");
scanf("%bx", &Data);
start();
i2cwrite(ADDRTC);
i2cwrite(Add);
i2cwrite(Data);
stop();
}
void initialize_DS3231() /* ----- set time & date; user data entry ------ */
/* Note: NO error checking is done on the user entries! */
{
printf(" Enter the year (0-99): ");
scanf("%bx", &yr);
printf("Enter the month (1-12): ");
scanf("%bx", &mn);
printf("Enter the date (1-31): ");
scanf("%bx", &dt);
printf("Enter the day (1-7): ");
scanf("%bx", &dy);
printf("Enter the hour (1-23): ");
scanf("%bx", &hr);
/* hr = hr & 0x3f; /* force clock to 24 hour mode */
printf("Enter the minute (0-59): ");
scanf("%bx", &min);
printf("Enter the second (0-59): ");
scanf("%bx", &sec);
start();
i2cwrite(ADDRTC); /* write slave address, write 1339 */
i2cwrite(0x00); /* write register address, 1st clock register */
i2cwrite(sec);
i2cwrite(min);
i2cwrite(hr);
i2cwrite(dy);
i2cwrite(dt);
i2cwrite(mn);
i2cwrite(yr);
i2cwrite(0x10); /* enable sqw, 1hz output */
stop();
}
void disp_regs() /* --- display date/time on LCD display --- */
{
uchar age, prv_sec=99;
while(!RI) /* Read & Display Clock Registers */
{
while(int0); /* loop until int pin goes low */
start();
i2cwrite(ADDRTC);
i2cwrite(0x0f);
i2cwrite(0); /* clear alarm flags */
stop();
start();
i2cwrite(ADDRTC);
i2cwrite(0);
start();
i2cwrite(ADDRTC | 1);
sec = i2cread(ACK);
min = i2cread(ACK);
hr = i2cread(ACK);
dy = i2cread(ACK);
dt = i2cread(ACK);
mn = i2cread(ACK);
yr = i2cread(NACK);
stop();
wr_dsp_ins(0x80); /* move to start of line 1 */
while((rd_dsp_ins() & 0x80));
hex2asc(yr);
wr_dsp_dat('/');
while((rd_dsp_ins() & 0x80));
hex2asc(mn);
wr_dsp_dat('/');
while((rd_dsp_ins() & 0x80));
hex2asc(dt);
wr_dsp_dat(' ');
while((rd_dsp_ins() & 0x80));
hex2asc(dy);
wr_dsp_dat(' ');
while((rd_dsp_ins() & 0x80));
start();
i2cwrite(ADDRTC);
i2cwrite(0x10);
start();
i2cwrite(ADDRTC | 1);
age = i2cread(NACK);
stop();
wr_dsp_dat(' ');
while((rd_dsp_ins() & 0x80));
hex2asc(age);
wr_dsp_ins(0xc0); /* move to start of line 2 */
while((rd_dsp_ins() & 0x80));
hex2asc(hr);
wr_dsp_dat(':');
while((rd_dsp_ins() & 0x80));
hex2asc(min);
wr_dsp_dat(':');
while((rd_dsp_ins() & 0x80));
hex2asc(sec);
rd_temp();
}
RI = 0; /* Swallow keypress to exit loop */
}
void rd_temp() /* -------- display temperature -------- */
{
char str[8];
int itemp;
float ftemp;
do
{
start();
i2cwrite(ADDRTC);
i2cwrite(0x0e); /* address of control register */
start();
i2cwrite(ADDRTC + 1); /* send the device address for read */
itemp = i2cread(NACK); /* get the control register value */
stop();
} while(itemp & 0x20); /* wait until CNVT bit goes inactive */
start();
i2cwrite(ADDRTC);
i2cwrite(0x11); /* address of temperature MSB */
start();
i2cwrite(ADDRTC + 1); /* send the device address for read */
itemp = ( (int) i2cread(ACK) << 5 );
itemp += ( i2cread(NACK) >> 3);
stop();
if(itemp & 0x1000) itemp += 0xe000; /* if sign bit set, make 16 bit 2's comp */
ftemp = 0.03125 * (float) itemp; /* convert to degrees C */
/* ftemp = ftemp * 9 / 5 + 32; /* skip this if you don't want degrees F */
sprintf(str, "%5.2f", ftemp);
wr_dsp_ins(0xc9); /* go to line 2, column 10 */
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(str[0]);
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(str[1]);
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(str[2]);
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(str[3]);
while((rd_dsp_ins() & 0x80));
wr_dsp_dat(0x02); /* display programed 3rd char in CG RAM */
while((rd_dsp_ins() & 0x80));
}
void frq_out_tog() /* --- toggle en32khz bit to enable/disable sqw --- */
{
uchar val;
start();
i2cwrite(ADDRTC);
i2cwrite(0x0f); /* control/status reg address */
start();
i2cwrite(ADDRTC + 1); /* send the device address for read */
val = i2cread(NACK);
stop();
val ^= 0x08; /* toggle en32khz bit */
start();
i2cwrite(ADDRTC);
i2cwrite(0x0f); /* control/status reg address */
i2cwrite(val);
stop();
}
void init_alrm() /* --- enable alarm 1 for once-per-second --- */
{
start();
i2cwrite(ADDRTC);
i2cwrite(7); /* 1st alarm 1 reg address */
i2cwrite(0x80); /* mask alarm register */
i2cwrite(0x80);
i2cwrite(0x80);
i2cwrite(0x80);
stop();
start();
i2cwrite(ADDRTC);
i2cwrite(0x0e); /* control/status reg address */
i2cwrite(0x05); /* enable interrupts, alarm 1 output */
}
void comm_init() /* ------ reset DS3231 comm interface ------ */
{
do /* because the DS3231 I2C interface is active for both supplies */
{ /* after a micro reset, we must get the comm into a known state */
sda = 1; /* make sure master has released SDA */
scl = 1;
if(sda) /* if sda is high, generate a start */
{
sda = 0; /* The DS3231 will recognize a valid start */
sda = 1; /* condition anywhere in a I2C data transfer */
}
scl = 0;
} while(sda == 0); /* if the DS3231 is holding sda low, try again */
}
void main (void) /* ------------------------------------------------ */
{
uchar i, M, M1;
dsp_adj(0x10); /* adjust contrast on LCD display */
init_dsp(); /* initialize LCD display */
comm_init();
init_alrm(); /* enable alarm */
disp_regs();
while(1)
{
printf(" DS3231 build date: %s ", __DATE__);
printf("I Init DS3231 S Show temp ");
printf("R Read Time W Write Byte ");
printf("F Frq out D Display adj ");
printf("Enter Menu Selection: ");
M = _getkey();
switch(M)
{
case 'D':
case 'd': printf("val: "); scanf("%bx", &M1);
dsp_adj(M1); break;
case 'F':
case 'f': frq_out_tog(); break;
case 'I':
case 'i': initialize_DS3231(); break;
case 'R':
case 'r': disp_regs(); break;
case 'S':
case 's': rd_temp(); break;
case 'W':
case 'w': writebyte(); break;
}
}

复制代码

huarana

2楼-- · 2019-07-17 15:16

我上个通用的。其实是stm32下的，不过很好移植

#include "ds3231.h"
u8 dis_buf_date[]={0,0,'-',0,0,' ',0,0,':',0,0,':',0,0,''};
u8 dis_buf_temp[]={0,0,'.',0,0,''};
u8 txd_buf_date[];
//BCD转换为Byte
u8 BCD2_Hex(u8 val)
{
u8 temp;
temp = val & 0x0f;
val>>= 4;
val &= 0x0f;
val *= 10;
temp+= val;
return temp;
}
//B转换为BCD
u8 HEX2_Bcd(u8 val)
{
u8 i,j,k;
i = val/10;
j = val%10;
k = j+(i<<4);
return k;
}
////初始化IIC
//void IIC_Init(void)
//{
// GPIO_InitTypeDef GPIO_InitStructure;
// //RCC->APB2ENR|=1<<4;//先使能外设IO PORTB时钟
// RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, ENABLE );
//
// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7;
// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP ; //推挽输出
// GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
// GPIO_Init(GPIOB, &GPIO_InitStructure);
//
// IIC_SCL=1;
// IIC_SDA=1;
//}
//初始化IIC
void IIC_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
//RCC->APB2ENR|=1<<4;//先使能外设IO PORTB时钟
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA, ENABLE );
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP ; //推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
IIC_SCL=1;
IIC_SDA=1;
}
//产生IIC起始信号
void IIC_Start(void)
{
SDA_OUT(); //sda线输出
IIC_SDA=1;
IIC_SCL=1;
delay_us(5);
IIC_SDA=0;//START:when CLK is high,DATA change form high to low
delay_us(5);
IIC_SCL=0;//钳住I2C总线，准备发送或接收数据
}
//产生IIC停止信号
void IIC_Stop(void)
{
SDA_OUT();//sda线输出
delay_us(5);
IIC_SCL=0;
delay_us(5);
IIC_SDA=0;//STOP:when CLK is high DATA change form low to high
delay_us(5);
IIC_SCL=1;
delay_us(5);
IIC_SDA=1;//发送I2C总线结束信号
delay_us(5);
}
//等待应答信号到来
//返回值：1，接收应答失败
// 0，接收应答成功
u8 IIC_Wait_Ack(void)
{
u8 ucErrTime=0;
SDA_IN(); //SDA设置为输入
IIC_SDA=1;delay_us(2);
IIC_SCL=1;delay_us(2);
while(READ_SDA)
{
ucErrTime++;
if(ucErrTime>250)
{
IIC_Stop();
return 1;
}
}
IIC_SCL=0;//时钟输出0
return 0;
}
//产生ACK应答
void IIC_Ack(void)
{
IIC_SCL=0;
SDA_OUT();
IIC_SDA=0;
delay_us(5);
IIC_SCL=1;
delay_us(5);
IIC_SCL=0;
}
//不产生ACK应答
void IIC_NAck(void)
{
IIC_SCL=0;
SDA_OUT();
IIC_SDA=1;
delay_us(5);
IIC_SCL=1;
delay_us(5);
IIC_SCL=0;
}
//IIC发送一个字节
//返回从机有无应答
//1，有应答
//0，无应答
void IIC_Send_Byte(u8 txd)
{
u8 t;
SDA_OUT();
IIC_SCL=0;//拉低时钟开始数据传输
for(t=0;t<8;t++)
{
IIC_SDA=(txd&0x80)>>7;
txd<<=1;
delay_us(5); //对TEA5767这三个延时都是必须的
IIC_SCL=1;
delay_us(5);
IIC_SCL=0;
delay_us(5);
}
}
//读1个字节，ack=1时，发送ACK，ack=0，发送nACK
u8 IIC_Read_Byte(unsigned char ack)
{
unsigned char i,receive=0;
SDA_IN();//SDA设置为输入
for(i=0;i<8;i++ )
{
IIC_SCL=0;
delay_us(5);
IIC_SCL=1;
receive<<=1;
if(READ_SDA)receive++;
delay_us(5);
}
if (!ack)
IIC_NAck();//发送nACK
else
IIC_Ack(); //发送ACK
return receive;
}
//指定地址写数据/命令
void DS3231_WriteByte(u8 addr,u8 dat)
{
IIC_Start();
IIC_Send_Byte(DS3231_WriteAddress);
IIC_Wait_Ack();
IIC_Send_Byte(addr);
IIC_Wait_Ack();
IIC_Send_Byte(dat);
IIC_Wait_Ack();
IIC_Stop();
}
u8 DS3231_ReadCurrent(void)
{
u8 read_dat;
IIC_Start();
IIC_Send_Byte(DS3231_ReadAddress);
IIC_Wait_Ack();
read_dat=IIC_Read_Byte(1);
IIC_Stop();
return read_dat;
}
u8 DS3231_ReadRandom(u8 random_addr)
{
IIC_Start();
IIC_Send_Byte(DS3231_WriteAddress);
IIC_Wait_Ack();
IIC_Send_Byte(random_addr);
IIC_Wait_Ack();
return (DS3231_ReadCurrent());
}
void DS3231_ModifyTime(u8 yea,u8 mon,u8 day,u8 hou,u8 min,u8 sec)
{
u8 temp=0;
temp=HEX2_Bcd(yea);
DS3231_WriteByte(DS3231_YEAR,temp); //修改年
temp=HEX2_Bcd(mon);
DS3231_WriteByte(DS3231_MONTH,temp); //修改月
temp=HEX2_Bcd(day);
DS3231_WriteByte(DS3231_DAY,temp); //修改日
temp=HEX2_Bcd(hou);
DS3231_WriteByte(DS3231_HOUR,temp); //修改时
temp=HEX2_Bcd(min);
DS3231_WriteByte(DS3231_MINUTE,temp); //修改分
temp=HEX2_Bcd(sec);
DS3231_WriteByte(DS3231_SECOND,temp); //修改秒
}
void TimeDisplay(u8 Dhour,u8 Dmin,u8 Dsec)
{
dis_buf_date[6]=Dhour/10 +0x30; // 时十位
dis_buf_date[7]=Dhour%10 +0x30; // 时个位
dis_buf_date[9]=Dmin /10 +0x30; // 分十位
dis_buf_date[10]=Dmin%10 +0x30; // 分个位
dis_buf_date[12]=Dsec/10 +0x30; // 秒十位
dis_buf_date[13]=Dsec%10 +0x30; // 秒个位
}
void DateDisplay(u8 Dyear,u8 Dmonth,u8 Dday)
{
// dis_buf_date[0]=Dyear / 10 +0x30; // 年十位
// dis_buf_date[1]=Dyear % 10 +0x30; // 年个位
dis_buf_date[0]=Dmonth/10 +0x30; // 月十位
dis_buf_date[1]=Dmonth%10 +0x30; // 月个位
dis_buf_date[3]=Dday /10 +0x30; // 天十位
dis_buf_date[4]=Dday %10 +0x30; // 天个位
// dis_buf_date[3]=Dmonth/10 +0x30; // 月十位
// dis_buf_date[4]=Dmonth%10 +0x30; // 月个位
// dis_buf_date[0]=Dday /10 +0x30; // 天十位
// dis_buf_date[1]=Dday %10 +0x30; // 天个位
}
void TempDisplay(u8 TempH,u8 TempL)
{
dis_buf_temp[0]=TempH / 10 +0x30; //
dis_buf_temp[1]=TempH % 10 +0x30; //
dis_buf_temp[3]=TempL / 10 +0x30; //
dis_buf_temp[4]=TempL % 10 +0x30; //
}
void get_show_time(void)
{
u8 Htemp1,Htemp2,Mtemp1,Mtemp2,Stemp1,Stemp2;
Stemp1=DS3231_ReadRandom(DS3231_SECOND); //秒
Stemp2=BCD2_Hex(Stemp1);
Mtemp1=DS3231_ReadRandom(DS3231_MINUTE); //分
Mtemp2=BCD2_Hex(Mtemp1);
Htemp1=DS3231_ReadRandom(DS3231_HOUR); //时 24小时制
// Htemp1&=0x3f;
Htemp2=BCD2_Hex(Htemp1);
TimeDisplay(Htemp2,Mtemp2,Stemp2);
txd_buf_date[3]=Htemp2;
txd_buf_date[4]=Mtemp2;
txd_buf_date[5]=Stemp2;
}
void get_show_date(void)
{
u8 Ytemp1,Ytemp2,Mtemp1,Mtemp2,Dtemp1,Dtemp2;
Dtemp1=DS3231_ReadRandom(DS3231_DAY); //日
Dtemp2=BCD2_Hex(Dtemp1);
Mtemp1=DS3231_ReadRandom(DS3231_MONTH); //月
Mtemp2=BCD2_Hex(Mtemp1);
Ytemp1=DS3231_ReadRandom(DS3231_YEAR); //年
// IIC_NAck();//发送nACK
Ytemp2=BCD2_Hex(Ytemp1);
DateDisplay(Ytemp2,Mtemp2,Dtemp2);
txd_buf_date[0]=Ytemp2;
txd_buf_date[1]=Mtemp2;
txd_buf_date[2]=Dtemp2;
}
//void get_show_Temperature(void)
// {
// u8 Ttemp1,Ttemp2,Ttemp3,Ttemp4;
// Ttemp1=DS3231_ReadRandom(DS3231_TEMPERATUREH); //温度高字节
// Ttemp2=BCD2_Hex(Ttemp1);
//
// Ttemp3=DS3231_ReadRandom(DS3231_TEMPERATUREL); //温度低字节
// Ttemp4=BCD2_Hex(Ttemp3);
//
// TempDisplay(Ttemp2,Ttemp4);
// }
void get_show_Temperature(void) //温度数据是以2?进制格式存储的并不需要数制转换?
{
// u8 Ttemp1,Ttemp2,Ttemp3,Ttemp4;
u8 Ttemp2,Ttemp4;
DS3231_WriteByte(0x0e,0x20); //0x0e寄存器的CONV位置1开启温度转换?
Ttemp2=DS3231_ReadRandom(DS3231_TEMPERATUREH); //温度高字节
// Ttemp2=BCD2_Hex(Ttemp1);
Ttemp4=DS3231_ReadRandom(DS3231_TEMPERATUREL); //温度低字节
IIC_NAck();//发送nACK
// Ttemp4=BCD2_Hex(Ttemp3);
Ttemp4=(Ttemp4>>6)*25; //将BIT7,BIT6的数据移入BIT1,BIT0位;分辨率数值扩大100倍便于整数运算
TempDisplay(Ttemp2,Ttemp4);
}

复制代码

#ifndef _DS3231_H_
#define _DS3231_H_
#include "sys.h"
#include "delay.h"
///*端口设置*/
//#define IIC_SCL PBout(6) //SCLK 时钟
//#define IIC_SDA PBout(7) //SDA 写数据
//#define READ_SDA PBin(7) //SDA 读数据
////IO方向设置
//#define SDA_IN() {GPIOB->CRL&=0X0FFFFFFF;GPIOB->CRL|=(u32)8<<28;/*GPIOB->ODR|=1<<7;*/} //设置SDA口为上拉输入
//#define SDA_OUT() {GPIOB->CRL&=0X0FFFFFFF;GPIOB->CRL|=(u32)3<<28;} //设置SDA口为推挽输出
/*端口设置*/
#define IIC_SCL PAout(6) //SCLK 时钟
#define IIC_SDA PAout(7) //SDA 写数据
#define READ_SDA PAin(7) //SDA 读数据
//IO方向设置
#define SDA_IN() {GPIOA->CRL&=0X0FFFFFFF;GPIOA->CRL|=(u32)8<<28;/*GPIOA->ODR|=1<<7;*/} //设置SDA口为上拉输入
#define SDA_OUT() {GPIOA->CRL&=0X0FFFFFFF;GPIOA->CRL|=(u32)3<<28;} //设置SDA口为推挽输出
//DS3231初始宏设置
#define DS3231_WriteAddress 0xD0 //器件写地址
#define DS3231_ReadAddress 0xD1 //器件读地址
#define DS3231_SECOND 0x00 //秒
#define DS3231_MINUTE 0x01 //分
#define DS3231_HOUR 0x02 //时
#define DS3231_WEEK 0x03 //星期
#define DS3231_DAY 0x04 //日
#define DS3231_MONTH 0x05 //月
#define DS3231_YEAR 0x06 //年
//闹铃1
#define DS3231_SALARM1ECOND 0x07 //秒
#define DS3231_ALARM1MINUTE 0x08 //分
#define DS3231_ALARM1HOUR 0x09 //时
#define DS3231_ALARM1WEEK 0x0A //星期/日
//闹铃2
#define DS3231_ALARM2MINUTE 0x0b //分
#define DS3231_ALARM2HOUR 0x0c //时
#define DS3231_ALARM2WEEK 0x0d //星期/日
#define DS3231_CONTROL 0x0e //控制寄存器
#define DS3231_STATUS 0x0f //状态寄存器
#define BSY 2 //忙
#define OSF 7 //振荡器停止标志
#define DS3231_XTAL 0x10 //晶体老化寄存器
#define DS3231_TEMPERATUREH 0x11 //温度寄存器高字节(8位)
#define DS3231_TEMPERATUREL 0x12 //温度寄存器低字节(高2位)
//IIC所有操作函数
void IIC_Init(void); //初始化IIC的IO口
void IIC_Start(void); //发送IIC开始信号
void IIC_Stop(void); //发送IIC停止信号
void IIC_Send_Byte(u8 txd); //IIC发送一个字节
u8 IIC_Read_Byte(u8); //IIC读取一个字节
u8 IIC_Wait_Ack(void); //IIC等待ACK信号
void IIC_Ack(void); //IIC发送ACK信号
void IIC_NAck(void); //IIC不发送ACK信号
u8 BCD2_Hex(u8);
u8 HEX2_Bcd(u8);
void DS3231_WriteByte(u8,u8);
u8 DS3231_ReadCurrent(void);
u8 DS3231_ReadRandom(u8);
void DS3231_ModifyTime(u8,u8,u8,u8,u8,u8);
void TimeDisplay(u8 Dhour,u8 Dmin,u8 Dsec);
void DateDisplay(u8 Dyear,u8 Dmonth,u8 Dday);
void TempDisplay(u8 TempH,u8 TempL);
void get_show_time(void);
void get_show_date(void);
void get_show_Temperature(void);
#endif