20260324

RTX5_20220316/Driver/DS3231/DS3231.c

@@ -0,0 +1,139 @@
+#include "bsp.h"  
+     
+_calendar_obj calendar;
+
+#define DS3231_WriteAddress 0xD0   
+#define DS3231_ReadAddress  0xD1
+
+u8 BCD2HEX(u8 val)
+{
+    u8 i;
+    i= val&0x0f;
+    val >>= 4;
+    val &= 0x0f;
+    val *= 10;
+    i += val;
+    
+    return i;
+}
+
+u16 B_BCD(u8 val)
+{
+  u8 i,j,k;
+  i=val/10;
+  j=val%10;
+  k=j+(i<<4);
+  return k;
+}
+
+
+void I2cByteWrite(u8 addr,u8 bytedata)
+{ 
+  IIC_Start();
+  delay_us(5);
+  IIC_Send_Byte(DS3231_WriteAddress);
+  IIC_Wait_Ack();
+  delay_us(5);
+  IIC_Send_Byte(addr);
+  IIC_Wait_Ack();
+  delay_us(5);
+  IIC_Send_Byte(bytedata);
+  IIC_Wait_Ack();
+  delay_us(5);
+  IIC_Stop();
+}	
+
+
+u8 I2cByteRead(u8 addr)
+{
+  u8 Dat=0;
+  
+  IIC_Start();
+  IIC_Send_Byte(DS3231_WriteAddress);
+  IIC_Wait_Ack();
+  delay_us(5);
+  IIC_Send_Byte(addr);
+  IIC_Wait_Ack();
+  delay_us(5);
+  IIC_Start();
+  IIC_Send_Byte(DS3231_ReadAddress);
+  IIC_Wait_Ack();
+  delay_us(5);
+  Dat=IIC_Read_Byte(0);
+  IIC_Stop();
+  return Dat;
+} 
+
+
+
+void DS3231_Init(void)
+{
+	IIC_Init();
+	I2cByteWrite(0x0e,0x40);
+	delay_ms(2); 
+  I2cByteWrite(0x0f,0x0);
+	delay_ms(2); 
+}
+void DS3231_Get(void)
+{
+  calendar.w_year=I2cByteRead(0x06);  
+  calendar.w_month=I2cByteRead(0x05);  
+  calendar.w_date=I2cByteRead(0x04); 
+  calendar.hour=I2cByteRead(0x02);  
+  calendar.min=I2cByteRead(0x01);
+  calendar.sec=I2cByteRead(0x00);
+}
+
+void DS3231_Set(u8 yea,u8 mon,u8 da,u8 hou,u8 min,u8 sec)
+{
+  u8 temp=0;
+  
+  temp=B_BCD(yea);
+  I2cByteWrite(0x06,temp);
+  temp=0;
+  temp=B_BCD(mon);
+  I2cByteWrite(0x05,temp);
+   temp=0;
+  temp=B_BCD(da);
+  I2cByteWrite(0x04,temp);
+  temp=0;
+  temp=B_BCD(hou);
+  I2cByteWrite(0x02,temp);
+  temp=0;
+  temp=B_BCD(min);
+  I2cByteWrite(0x01,temp);
+  temp=0;
+  temp=B_BCD(sec);
+  I2cByteWrite(0x00,temp);
+  
+}
+
+
+void get_show_time(void)
+{
+calendar.w_year=I2cByteRead(0x06);  
+calendar.w_year=BCD2HEX(calendar.w_year);
+
+
+calendar.w_month=I2cByteRead(0x05); 
+calendar.w_month=BCD2HEX(calendar.w_month);
+
+
+calendar.w_date=I2cByteRead(0x04);  
+calendar.w_date=BCD2HEX(calendar.w_date);
+ 
+
+calendar.hour=I2cByteRead(0x02); 
+calendar.hour&=0x3f;                   
+calendar.hour=BCD2HEX(calendar.hour);
+
+
+calendar.min=I2cByteRead(0x01);
+calendar.min=BCD2HEX(calendar.min);
+  
+  
+calendar.sec=I2cByteRead(0x00);
+calendar.sec=BCD2HEX(calendar.sec);
+}
+
+

RTX5_20220316/Driver/DS3231/DS3231.h

@@ -0,0 +1,27 @@
+#include "sys.h"
+#ifndef __DS3231_H__
+#define __DS3231_H__
+
+
+typedef struct 
+{
+	u8 hour;
+	u8 min;
+	u8 sec;			
+	u32 w_year;
+	u8  w_month;
+	u8  w_date;
+	u8  week;		 
+}_calendar_obj;					 
+extern _calendar_obj calendar;	//<2F><><EFBFBD><EFBFBD><EFBFBD>ṹ<EFBFBD><E1B9B9>
+
+extern u8 const mon_table[12];	//<2F>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD>
+u8 I2cByteRead(u8 addr);
+void I2cByteWrite(u8 addr,u8 bytedata);
+void DS3231_Init(void);
+void get_show_time(void);      
+//u8 RTC_Get_Week(u16 year,u8 month,u8 day);
+void DS3231_Set(u8 syear,u8 smon,u8 sday,u8 hour,u8 min,u8 sec);//<2F><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>	
+void DS3231_Get(void);
+#endif
+