You've already forked TEF6686_Driver
32 lines
1.0 KiB
Python
32 lines
1.0 KiB
Python
import datetime
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from protocol import I2CPCClient
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def sync_rtc(p: I2CPCClient):
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TIMEOFFSET_ADDR = 2275
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dtime = datetime.datetime.now(datetime.UTC)
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utc_off = d.total_seconds() / 3600 if (d := datetime.datetime.now().astimezone().utcoffset()) else 0
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if(p.version()[-1] >= 2): p.write_eeprom(TIMEOFFSET_ADDR, int(utc_off).to_bytes(1, signed=True))
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else: dtime = datetime.datetime.now()
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ADDRESS = 0x32
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p.write_i2c(ADDRESS, b"\x1f\x40") # halt the clock
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def toBCD(val: int) -> int:
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return ((val // 10) << 4) | (val % 10)
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data = b"\x10"
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data += toBCD(dtime.second).to_bytes(1)
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data += toBCD(dtime.minute).to_bytes(1)
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data += toBCD(dtime.hour).to_bytes(1)
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data += toBCD(1 << dtime.weekday()).to_bytes(1)
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data += toBCD(dtime.day).to_bytes(1)
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data += toBCD(dtime.month).to_bytes(1)
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data += toBCD((1900 + dtime.year - 26) % 100).to_bytes(1)
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p.write_i2c(ADDRESS, data)
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p.write_i2c(ADDRESS, b"\x1f\x00") # start the clock
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p = I2CPCClient("COM17")
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sync_rtc(p)
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p.reboot()
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p.close() |