初始化提交

boards/default/micropython_nrf51822_microbit/build/lib/RTC.py

@@ -0,0 +1,128 @@
+from microbit import *
+
+DS1307_I2C_ADDRESS  = (104)
+DS1307_REG_SECOND   = (0)
+DS1307_REG_MINUTE   = (1)
+DS1307_REG_HOUR     = (2)
+DS1307_REG_WEEKDAY  = (3)
+DS1307_REG_DAY      = (4)
+DS1307_REG_MONTH    = (5)
+DS1307_REG_YEAR     = (6)
+DS1307_REG_CTRL     = (7)
+DS1307_REG_RAM      = (8)
+class DS1307():
+    # set reg
+    def setReg(self, reg, dat):
+        i2c.write(DS1307_I2C_ADDRESS, bytearray([reg, dat]))
+
+    # get reg
+    def getReg(self, reg):
+        i2c.write(DS1307_I2C_ADDRESS, bytearray([reg]))
+        t = i2c.read(DS1307_I2C_ADDRESS, 1)
+        return t[0]
+
+    def start(self):
+        t = self.getReg(DS1307_REG_SECOND)
+        self.setReg(DS1307_REG_SECOND, t&0x7F)
+
+    def stop(self):
+        t = self.getReg(DS1307_REG_SECOND)
+        self.setReg(DS1307_REG_SECOND, t|0x80)
+
+    def DecToHex(self, dat):
+        return (dat//10) * 16 + (dat%10)
+
+    def HexToDec(self, dat):
+        return (dat//16) * 10 + (dat%16)
+
+    def DateTime(self, DT=None):
+        if DT == None:
+            i2c.write(DS1307_I2C_ADDRESS, bytearray([0]))
+            buf = i2c.read(DS1307_I2C_ADDRESS, 7)
+            DT = [0] * 8
+            DT[0] = self.HexToDec(buf[6]) + 2000
+            DT[1] = self.HexToDec(buf[5])
+            DT[2] = self.HexToDec(buf[4])
+            DT[3] = self.HexToDec(buf[3])
+            DT[4] = self.HexToDec(buf[2])
+            DT[5] = self.HexToDec(buf[1])
+            DT[6] = self.HexToDec(buf[0])
+            DT[7] = 0
+            return DT
+        else:
+            buf = bytearray(8)
+            buf[0] = 0
+            buf[1] = self.DecToHex(DT[6]%60)    # second
+            buf[2] = self.DecToHex(DT[5]%60)    # minute
+            buf[3] = self.DecToHex(DT[4]%24)    # hour
+            buf[4] = self.DecToHex(DT[3]%8)     # week day
+            buf[5] = self.DecToHex(DT[2]%32)    # date
+            buf[6] = self.DecToHex(DT[1]%13)    # month
+            buf[7] = self.DecToHex(DT[0]%100)   # year
+            i2c.write(DS1307_I2C_ADDRESS, buf)
+
+    def Year(self, year = None):
+        if year == None:
+            return self.HexToDec(self.getReg(DS1307_REG_YEAR)) + 2000
+        else:
+            self.setReg(DS1307_REG_YEAR, self.DecToHex(year%100))
+
+    def Month(self, month = None):
+        if month == None:
+            return self.HexToDec(self.getReg(DS1307_REG_MONTH))
+        else:
+            self.setReg(DS1307_REG_MONTH, self.DecToHex(month%13))
+
+    def Day(self, day = None):
+        if day == None:
+            return self.HexToDec(self.getReg(DS1307_REG_DAY))
+        else:
+            self.setReg(DS1307_REG_DAY, self.DecToHex(day%32))
+
+    def Weekday(self, weekday = None):
+        if weekday == None:
+            return self.HexToDec(self.getReg(DS1307_REG_WEEKDAY))
+        else:
+            self.setReg(DS1307_REG_WEEKDAY, self.DecToHex(weekday%8))
+
+    def Hour(self, hour = None):
+        if hour == None:
+            return self.HexToDec(self.getReg(DS1307_REG_HOUR))
+        else:
+            self.setReg(DS1307_REG_HOUR, self.DecToHex(hour%24))
+
+    def Minute(self, minute = None):
+        if minute == None:
+            return self.HexToDec(self.getReg(DS1307_REG_MINUTE))
+        else:
+            self.setReg(DS1307_REG_MINUTE, self.DecToHex(minute%60))
+
+    def Second(self, second = None):
+        if second == None:
+            return self.HexToDec(self.getReg(DS1307_REG_SECOND))
+        else:
+            self.setReg(DS1307_REG_SECOND, self.DecToHex(second%60))
+
+    def ram(self, reg, dat = None):
+        if dat == None:
+            return self.getReg(DS1307_REG_RAM + (reg%56))
+        else:
+            self.setReg(DS1307_REG_RAM + (reg%56), dat)
+
+    def get_time(self):
+        return self.Hour() + self.Minute() + self.Second()
+
+    def get_date(self):
+        return self.Year() + self.Month() + self.Day()
+
+    def set_time(self, hour, minute, second):
+        self.Hour(hour)
+        self.Minute(minute)
+        self.Second(second)
+
+    def set_date(self, year, month, day):
+        self.Year(year)
+        self.Month(month)
+        self.Day(day)
+
+ds = DS1307()