使用STM32+DS1302获取时间,但是最后显示的时间是35-17-37 18:68:86这是怎么回事呀,请问该怎么解决呢?
uint8_t Write_Addr_Buffer[7]={0x80,0x82,0x84,0x86,0x88,0x8a,0x8c};//????
uint8_t Read_Addr_Buffer[7]={0x81,0x83,0x85,0x87,0x89,0x8b,0x8d};//????
uint8_t DS1302_Time_Buffer[7]={0x24,0x34,0x12,0x24,0x11,0x7,0x23};
#define DS1302_CLK_PORT GPIOB
#define DS1302_CLK_CLK RCC_APB2Periph_GPIOB
#define DS1302_CLK_PIN GPIO_Pin_8
#define DS1302_DAT_PORT GPIOB
#define DS1302_DAT_CLK RCC_APB2Periph_GPIOB
#define DS1302_DAT_PIN GPIO_Pin_9
#define DS1302_RST_PORT GPIOB
#define DS1302_RST_CLK RCC_APB2Periph_GPIOB
#define DS1302_RST_PIN GPIO_Pin_7
// Pin0-7??CRL??? Pin8-15??CRH??? ????????
#define DS1302_DAT_OutPut_Mode() {DS1302_DAT_PORT->CRL &= 0xFFFFFFFF;DS1302_DAT_PORT->CRL |= 0x30000000;}
#define DS1302_DAT_InPut_Mode() {DS1302_DAT_PORT->CRL &= 0xFFFFFFFF;DS1302_DAT_PORT->CRL |= 0x80000000;}
//DS1302??????
#define DS1302_DAT_IN() GPIO_ReadInputDataBit(DS1302_DAT_PORT, DS1302_DAT_PIN)
#define DS1302_CLK_0 DS1302_CLK_PORT->BSRR = (uint32_t)DS1302_CLK_PIN<<16 // 0
#define DS1302_CLK_1 DS1302_CLK_PORT->BSRR = (uint32_t)DS1302_CLK_PIN // 1
#define DS1302_DAT_0 DS1302_DAT_PORT->BSRR = (uint32_t)DS1302_DAT_PIN<<16 // 0
#define DS1302_DAT_1 DS1302_DAT_PORT->BSRR = (uint32_t)DS1302_DAT_PIN // 1
#define DS1302_RST_0 DS1302_RST_PORT->BSRR = (uint32_t)DS1302_RST_PIN<<16 // 0
#define DS1302_RST_1 DS1302_RST_PORT->BSRR = (uint32_t)DS1302_RST_PIN // 1
//DS1302????
#define DS1302_SEC_ADDR 0x80 //ÃëÊý¾ÝµØÖ·
#define DS1302_MIN_ADDR 0x82 //?????
#define DS1302_HOUR_ADDR 0x84 //?????
#define DS1302_DAY_ADDR 0x86 //?????
#define DS1302_MONTH_ADDR 0x88 //?????
#define DS1302_WEEK_ADDR 0x8a //??????
#define DS1302_YEAR_ADDR 0x8c //?????
#define DS1302_CONTROL_ADDR 0x8e //¿ØÖƹ¦ÄܵØÖ·
#define DS1302_CHARGER_ADDR 0x90 //³äµç¹¦ÄܵØÖ·
#define DS1302_CLKBURST_ADDR 0xbe
//?DS1302???????
void DS1302_IO_OUT(void) //ÍÆÍìÊä³ö
{
GPIO_InitTypeDef GPIO_InitStructure; //??????IO????
RCC_APB2PeriphClockCmd(DS1302_DAT_CLK ,ENABLE); //??PB????
GPIO_InitStructure.GPIO_Pin = DS1302_DAT_PIN; //????PB4
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //????,????????
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//?????
GPIO_Init(DS1302_DAT_PORT, &GPIO_InitStructure); //??PB4
}
void DS1302_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(DS1302_CLK_CLK | DS1302_RST_CLK, ENABLE);
GPIO_InitStructure.GPIO_Pin=DS1302_CLK_PIN;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(DS1302_CLK_PORT,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin=DS1302_RST_PIN;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(DS1302_RST_PORT,&GPIO_InitStructure);
DS1302_IO_OUT();
}
void DS1302_IO_IN(void) //ÉÏÀÊäÈë
{
GPIO_InitTypeDef GPIO_InitStructure; //??????IO????
RCC_APB2PeriphClockCmd(DS1302_DAT_CLK ,ENABLE); //??PB????
GPIO_InitStructure.GPIO_Pin = DS1302_DAT_PIN; //????PB4
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //????,????????
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;//?????
GPIO_Init(DS1302_DAT_PORT, &GPIO_InitStructure);
}
void DS1302_WriteByte(uint8_t addr,uint8_t data) //ϽµÑØдÈë
{
uint8_t i;
//LED2=!LED2;
DS1302_RST_0; //?????? !!!?????
delay_us(20);
DS1302_CLK_0; //??????SCLK????
DS1302_RST_1; //ʹÄÜDS1302
addr = addr & 0xFE;
for(i=0;i<8;i++) //ÏÈдaddr
{
if (addr&0x01)
DS1302_DAT_1;
else
DS1302_DAT_0;
addr=addr>>1;
DS1302_CLK_1; //ÉÏÉýÑضÁÈ¡Êý¾Ý
delay_us(20);
DS1302_CLK_0;
delay_us(20);
}
for (i=0;i<8;i++) //ºóдdata
{
if(data&0x01)
DS1302_DAT_1;
else
DS1302_DAT_0;
data = data >> 1;
DS1302_CLK_1; //?????????
delay_us(20);
DS1302_CLK_0;
delay_us(20);
}
DS1302_CLK_1; // ???????????? ,??????
delay_us(20);
delay_us(20);
DS1302_RST_0; //??DS1302??
delay_us(20);
}
//?DS1302???????
uint8_t DS1302_ReadByte(uint8_t addr) //ÉÏÉýÑضÁ³ö
{
uint8_t i,dat,dat1;
DS1302_RST_0; //?????
delay_us(20);
DS1302_CLK_0; //??SCLK????,??????SCLK???
DS1302_RST_1; //??DS1302??
addr = addr | 0x01;
for(i=0;i<8;i++)
{
if (addr&0x01) //Èç¹û×îµÍλΪ1
DS1302_DAT_1;
else
DS1302_DAT_0;
addr = addr >> 1;//±íʾÓÒÒÆһλ
DS1302_CLK_1; //???
delay_us(20);
DS1302_CLK_0;
delay_us(20);
}
//?DS1302????:temp
//DS1302_DAT_InPut_Mode();
DS1302_IO_IN();
for(i=0;i<8;i++)
{
dat1=DS1302_DAT_IN();
dat=(dat>>1)|(dat1<<7); //dat1ÓÒÒÆÆß룬dat×óÒÆһλ£¬È»ºó»òÔËËã
DS1302_CLK_1;
delay_us(20);
DS1302_CLK_0;
delay_us(20);
}
DS1302_CLK_1; //???????????
delay_us(20);
DS1302_IO_OUT();
delay_us(20);
DS1302_RST_0; //??DS1302??
delay_us(20);
DS1302_DAT_0;
return dat;
}
void DS1302_Read_Time()
{
uint8_t i;
for(i=0;i<7;i++)
{
DS1302_Time_Buffer[i]=DS1302_ReadByte(Read_Addr_Buffer[i]);//????
}
//?? ????????
DS1302_Time_Buffer[0] &= 0x7f; //×î¸ßλÖÃ0
}
void DS1302_SetTime() //uint8_t *writeTime
{
uint8_t i;
DS1302_WriteByte(0x8e,0x00);//??? wp = 0
for(i=0;i<7;i++) //???
{
DS1302_WriteByte(Write_Addr_Buffer[i],DS1302_Time_Buffer[i]); //???????
//LED2=!LED2;
}
DS1302_WriteByte(0x8e,0x80);//??? wp = 1
}
void GetTime(DS1302TimeStruct *timeData)
{
timeData->year=DS1302_Time_Buffer[6]; //????
timeData->month=DS1302_Time_Buffer[4]; //????
timeData->day=DS1302_Time_Buffer[3]; //????
timeData->hour=DS1302_Time_Buffer[2]; //????
timeData->minute=DS1302_Time_Buffer[1]; //????
timeData->second=DS1302_Time_Buffer[0]; //????
timeData->week=DS1302_Time_Buffer[5];
}