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allow setting FRAM size #34

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allow setting FRAM size #34

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11 changes: 8 additions & 3 deletions adafruit_fram.py
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Original file line number Diff line number Diff line change
Expand Up @@ -15,10 +15,14 @@

**Hardware:**

* Adafruit `I2C Non-Volatile FRAM Breakout
* Adafruit `I2C Non-Volatile FRAM Breakout - 32k
<https://www.adafruit.com/product/1895>`_ (Product ID: 1895)
* Adafruit `SPI Non-Volatile FRAM Breakout
* Adafruit `SPI Non-Volatile FRAM Breakout - 8k
<https://www.adafruit.com/product/1897>`_ (Product ID: 1897)
* Adafruit `SPI Non-Volatile FRAM Breakout - 256k
<https://www.adafruit.com/product/4718>`_ (Product ID: 4718)
* Adafruit `SPI Non-Volatile FRAM Breakout - 512k
<https://www.adafruit.com/product/4719>`_ (Product ID: 4719)

**Software and Dependencies:**

Expand Down Expand Up @@ -249,6 +253,7 @@ def __init__(
address: int = 0x50,
write_protect: bool = False,
wp_pin: Optional[DigitalInOut] = None,
max_size: int = _MAX_SIZE_I2C, # BBB
) -> None:
from adafruit_bus_device.i2c_device import ( # pylint: disable=import-outside-toplevel
I2CDevice as i2cdev,
Expand All @@ -264,7 +269,7 @@ def __init__(
raise OSError("FRAM I2C device not found.")

self._i2c = i2cdev(i2c_bus, address)
super().__init__(_MAX_SIZE_I2C, write_protect, wp_pin)
super().__init__(max_size, write_protect, wp_pin) # BBB

def _read_address(self, address: int, read_buffer: bytearray) -> bytearray:
write_buffer = bytearray(2)
Expand Down