src/adafruit_blinka/microcontroller/generic_micropython/i2c.py

   1 """I2C Class for Generic MicroPython"""
   2 from machine import I2C as _I2C
   3
   4
   5 class I2C:
   6     """I2C Class for Generic MicroPython"""
   7
   8     MASTER = 0
   9
  10     # pylint: disable=unused-argument
  11     def __init__(self, portId, *, mode=MASTER, baudrate=100000):
  12         self._i2c = _I2C(portId, freq=baudrate)
  13
  14     def scan(self):
  15         """Perform an I2C Device Scan"""
  16         return self._i2c.scan()
  17
  18     def writeto(self, address, buffer, *, stop=True):
  19         """Write the data from the buffer to the address"""
  20         return self._i2c.writeto(address, buffer)
  21
  22     def readfrom_into(self, address, buffer, *, stop=True):
  23         """Read data from an address and into the buffer"""
  24         return self._i2c.readfrom_into(address, buffer)
  25
  26     def writeto_then_readfrom(
  27         self,
  28         address,
  29         buffer_out,
  30         buffer_in,
  31         *,
  32         out_start=0,
  33         out_end=None,
  34         in_start=0,
  35         in_end=None,
  36         stop=False
  37     ):
  38         """Write data from buffer_out to an address and then
  39         read data from an address and into buffer_in
  40         """
  41         self._i2c.writeto_then_readfrom(
  42             address,
  43             buffer_out,
  44             buffer_in,
  45             out_start=out_start,
  46             out_end=out_end,
  47             in_start=in_start,
  48             in_end=in_end,
  49         )
  50
  51     # pylint: enable=unused-argument