+# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
"""
`busio` - Bus protocol support like I2C and SPI
=================================================
* Author(s): cefn
"""
-
-import threading
-
+try:
+ import threading
+except ImportError:
+ threading = None
+
+# pylint: disable=unused-import
+import adafruit_platformdetect.constants.boards as ap_board
+import adafruit_platformdetect.constants.chips as ap_chip
from adafruit_blinka import Enum, Lockable, agnostic
from adafruit_blinka.agnostic import board_id, detector
-import adafruit_platformdetect.board as ap_board
+
+# pylint: disable=import-outside-toplevel,too-many-branches,too-many-statements
+# pylint: disable=too-many-arguments,too-many-function-args,too-many-return-statements
+
class I2C(Lockable):
- def __init__(self, scl, sda, frequency=400000):
+ """
+ Busio I2C Class for CircuitPython Compatibility. Used
+ for both MicroPython and Linux.
+
+ NOTE: Frequency has no effect on Linux systems. The argument is only there for compatibility.
+ """
+
+ def __init__(self, scl, sda, frequency=100000):
self.init(scl, sda, frequency)
def init(self, scl, sda, frequency):
+ """Initialization"""
self.deinit()
if detector.board.ftdi_ft232h:
- from adafruit_blinka.microcontroller.ft232h.i2c import I2C
- self._i2c = I2C()
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C
+
+ self._i2c = _I2C(frequency=frequency)
return
- elif detector.board.binho_nova:
- from adafruit_blinka.microcontroller.nova.i2c import I2C
- self._i2c = I2C()
+ if detector.board.binho_nova:
+ from adafruit_blinka.microcontroller.nova.i2c import I2C as _I2C
+
+ self._i2c = _I2C(frequency=frequency)
return
- elif detector.board.any_embedded_linux:
+ if detector.board.microchip_mcp2221:
+ from adafruit_blinka.microcontroller.mcp2221.i2c import I2C as _I2C
+
+ self._i2c = _I2C(frequency=frequency)
+ return
+
+ if detector.board.OS_AGNOSTIC_BOARD:
+ from adafruit_blinka.microcontroller.generic_agnostic_board.i2c import (
+ I2C as _I2C,
+ )
+
+ self._i2c = _I2C(frequency=frequency)
+ return
+
+ if detector.board.greatfet_one:
+ from adafruit_blinka.microcontroller.nxp_lpc4330.i2c import I2C as _I2C
+
+ self._i2c = _I2C(frequency=frequency)
+ return
+ if detector.board.pico_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_Pico as _I2C
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.feather_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_Feather as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.feather_can_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_Feather_CAN as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.feather_epd_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_Feather_EPD as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.feather_rfm_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_Feather_RFM as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.qtpy_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import I2C_QTPY as _I2C
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.itsybitsy_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_ItsyBitsy as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.macropad_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_MacroPad as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.qt2040_trinkey_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_QT2040_Trinkey as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.kb2040_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_KB2040 as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.radxa_x4_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.i2c import (
+ I2C_Radxa_X4 as _I2C,
+ )
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.chip.id == ap_chip.RP2040:
+ from adafruit_blinka.microcontroller.rp2040.i2c import I2C as _I2C
+
+ self._i2c = _I2C(scl, sda, frequency=frequency)
+ return
+ if detector.board.any_siemens_iot2000:
+ from adafruit_blinka.microcontroller.am65xx.i2c import I2C as _I2C
+
+ self._i2c = _I2C(frequency=frequency)
+ return
+
+ if detector.board.any_embedded_linux:
from adafruit_blinka.microcontroller.generic_linux.i2c import I2C as _I2C
+
+ if frequency == 100000:
+ frequency = None # Set to None if default to avoid triggering warning
+ elif detector.board.ftdi_ft2232h:
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C
+ elif detector.board.ftdi_ft4232h:
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.i2c import I2C as _I2C
else:
- from machine import I2C as _I2C
+ from adafruit_blinka.microcontroller.generic_micropython.i2c import (
+ I2C as _I2C,
+ )
from microcontroller.pin import i2cPorts
+
for portId, portScl, portSda in i2cPorts:
try:
+ # pylint: disable=unexpected-keyword-arg
if scl == portScl and sda == portSda:
self._i2c = _I2C(portId, mode=_I2C.MASTER, baudrate=frequency)
break
+ # pylint: enable=unexpected-keyword-arg
except RuntimeError:
pass
else:
raise ValueError(
- "No Hardware I2C on (scl,sda)={}\nValid I2C ports: {}".format((scl, sda), i2cPorts)
+ f"No Hardware I2C on (scl,sda)={(scl, sda)}\n"
+ f"Valid I2C ports: {i2cPorts}.\nMake sure I2C is enabled."
)
-
- self._lock = threading.RLock()
+ if threading is not None:
+ self._lock = threading.RLock()
def deinit(self):
+ """Deinitialization"""
try:
del self._i2c
except AttributeError:
pass
def __enter__(self):
- self._lock.acquire()
+ if threading is not None:
+ self._lock.acquire()
return self
def __exit__(self, exc_type, exc_value, traceback):
- self._lock.release()
+ if threading is not None:
+ self._lock.release()
self.deinit()
def scan(self):
+ """Scan for attached devices"""
return self._i2c.scan()
def readfrom_into(self, address, buffer, *, start=0, end=None):
- if start is not 0 or end is not None:
+ """Read from a device at specified address into a buffer"""
+ if start != 0 or end is not None:
if end is None:
end = len(buffer)
buffer = memoryview(buffer)[start:end]
- stop = True # remove for efficiency later
- return self._i2c.readfrom_into(address, buffer, stop=stop)
+ return self._i2c.readfrom_into(address, buffer, stop=True)
- def writeto(self, address, buffer, *, start=0, end=None, stop=True):
+ def writeto(self, address, buffer, *, start=0, end=None):
+ """Write to a device at specified address from a buffer"""
if isinstance(buffer, str):
buffer = bytes([ord(x) for x in buffer])
- if start is not 0 or end is not None:
+ if start != 0 or end is not None:
if end is None:
- return self._i2c.writeto(address, memoryview(buffer)[start:], stop=stop)
- else:
- return self._i2c.writeto(address, memoryview(buffer)[start:end], stop=stop)
- return self._i2c.writeto(address, buffer, stop=stop)
+ return self._i2c.writeto(address, memoryview(buffer)[start:], stop=True)
+ return self._i2c.writeto(address, memoryview(buffer)[start:end], stop=True)
+ return self._i2c.writeto(address, buffer, stop=True)
+
+ def writeto_then_readfrom(
+ self,
+ address,
+ buffer_out,
+ buffer_in,
+ *,
+ out_start=0,
+ out_end=None,
+ in_start=0,
+ in_end=None,
+ stop=False,
+ ):
+ """ "Write to a device at specified address from a buffer then read
+ from a device at specified address into a buffer
+ """
+ return self._i2c.writeto_then_readfrom(
+ address,
+ buffer_out,
+ buffer_in,
+ out_start=out_start,
+ out_end=out_end,
+ in_start=in_start,
+ in_end=in_end,
+ stop=stop,
+ )
- def writeto_then_readfrom(self, address, buffer_out, buffer_in, *, out_start=0, out_end=None, in_start=0, in_end=None, stop=False):
- return self._i2c.writeto_then_readfrom(address, buffer_out, buffer_in,
- out_start=out_start, out_end=out_end,
- in_start=in_start, in_end=in_end, stop=stop)
class SPI(Lockable):
+ """
+ Busio SPI Class for CircuitPython Compatibility. Used
+ for both MicroPython and Linux.
+ """
+
def __init__(self, clock, MOSI=None, MISO=None):
self.deinit()
if detector.board.ftdi_ft232h:
- from adafruit_blinka.microcontroller.ft232h.spi import SPI as _SPI
- from adafruit_blinka.microcontroller.ft232h.pin import SCK, MOSI, MISO
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.ftdi_mpsse.ft232h.pin import (
+ SCK,
+ MOSI,
+ MISO,
+ )
+
self._spi = _SPI()
self._pins = (SCK, MOSI, MISO)
return
- elif detector.board.binho_nova:
+ if detector.board.binho_nova:
from adafruit_blinka.microcontroller.nova.spi import SPI as _SPI
- #from adafruit_blinka.microcontroller.nova.pin import SCK, MOSI, MISO
+ from adafruit_blinka.microcontroller.nova.pin import SCK, MOSI, MISO
+
self._spi = _SPI(clock)
- #self._pins = (SCK, MOSI, MISO)
+ self._pins = (SCK, MOSI, MISO)
return
- elif detector.board.any_embedded_linux:
+ if detector.board.greatfet_one:
+ from adafruit_blinka.microcontroller.nxp_lpc4330.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.nxp_lpc4330.pin import SCK, MOSI, MISO
+
+ self._spi = _SPI()
+ self._pins = (SCK, MOSI, MISO)
+ return
+ if detector.board.pico_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_Pico as _SPI
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.feather_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.feather_can_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather_CAN as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.feather_epd_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather_EPD as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.feather_rfm_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather_RFM as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.itsybitsy_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_ItsyBitsy as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.macropad_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_MacroPad as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.qtpy_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_QTPY as _SPI
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.kb2040_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_KB2040 as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.radxa_x4_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Radxa_X4 as _SPI,
+ )
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.chip.id == ap_chip.RP2040:
+ from adafruit_blinka.microcontroller.rp2040.spi import SPI as _SPI
+
+ self._spi = _SPI(clock, MOSI, MISO) # Pins configured on instantiation
+ self._pins = (clock, clock, clock) # These don't matter, they're discarded
+ return
+ if detector.board.any_siemens_iot2000:
+ from adafruit_blinka.microcontroller.am65xx.spi import SPI as _SPI
+
+ self._spi = _SPI(clock) # this is really all that's needed
+ self._pins = (clock, clock, clock) # will determine MOSI/MISO from clock
+ return
+ if detector.board.any_embedded_linux:
from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif detector.board.ftdi_ft2232h:
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import SPI as _SPI
+ elif detector.board.ftdi_ft4232h:
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import SPI as _SPI
+ elif detector.board.OS_AGNOSTIC_BOARD:
+ from adafruit_blinka.microcontroller.generic_agnostic_board.spi import (
+ SPI as _SPI,
+ )
else:
- from machine import SPI as _SPI
+ from adafruit_blinka.microcontroller.generic_micropython.spi import (
+ SPI as _SPI,
+ )
from microcontroller.pin import spiPorts
+
for portId, portSck, portMosi, portMiso in spiPorts:
- if ((clock == portSck) and # Clock is required!
- (MOSI == portMosi or MOSI == None) and # But can do with just output
- (MISO == portMiso or MISO == None)): # Or just input
+ if (
+ (clock == portSck)
+ and MOSI in (portMosi, None) # Clock is required!
+ and MISO in (portMiso, None) # But can do with just output
+ ): # Or just input
self._spi = _SPI(portId)
self._pins = (portSck, portMosi, portMiso)
break
else:
raise ValueError(
- "No Hardware SPI on (SCLK, MOSI, MISO)={}\nValid SPI ports:{}".
- format((clock, MOSI, MISO), spiPorts))
+ f"No Hardware SPI on (SCLK, MOSI, MISO)={(clock, MOSI, MISO)}\n"
+ f"Valid SPI ports: {spiPorts}.\nMake sure SPI is enabled."
+ )
def configure(self, baudrate=100000, polarity=0, phase=0, bits=8):
- if detector.board.any_raspberry_pi or detector.board.any_raspberry_pi_40_pin:
- from adafruit_blinka.microcontroller.bcm283x.pin import Pin
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- elif detector.board.any_beaglebone:
- from adafruit_blinka.microcontroller.am335x.pin import Pin
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- elif board_id == ap_board.ORANGE_PI_PC or board_id == ap_board.ORANGE_PI_R1 or board_id == ap_board.ORANGE_PI_ZERO:
- from adafruit_blinka.microcontroller.allwinner_h3.pin import Pin
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- elif board_id == ap_board.GIANT_BOARD:
- from adafruit_blinka.microcontroller.sama5.pin import Pin
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- elif board_id == ap_board.CORAL_EDGE_TPU_DEV:
- from adafruit_blinka.microcontroller.nxp_imx8m.pin import Pin
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- elif board_id == ap_board.ODROID_C2:
- from adafruit_blinka.microcontroller.amlogic.s905.pin import Pin
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- elif board_id == ap_board.DRAGONBOARD_410C:
- from adafruit_blinka.microcontroller.snapdragon.apq8016.pin import Pin
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- elif board_id == ap_board.JETSON_NANO:
+ """Update the configuration"""
+ if detector.board.any_nanopi and detector.chip.id == ap_chip.SUN8I:
from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- from adafruit_blinka.microcontroller.tegra.t210.pin import Pin
- elif board_id == ap_board.JETSON_TX1:
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- from adafruit_blinka.microcontroller.tegra.t210.pin import Pin
- elif board_id == ap_board.JETSON_TX2:
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- from adafruit_blinka.microcontroller.tegra.t186.pin import Pin
- elif board_id == ap_board.JETSON_XAVIER:
- from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
- from adafruit_blinka.microcontroller.tegra.t194.pin import Pin
elif detector.board.ftdi_ft232h:
- from adafruit_blinka.microcontroller.ft232h.spi import SPI as _SPI
- from adafruit_blinka.microcontroller.ft232h.pin import Pin
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import (
+ SPI as _SPI,
+ )
+ elif detector.board.ftdi_ft2232h:
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import (
+ SPI as _SPI,
+ )
+ elif detector.board.ftdi_ft4232h:
+ from adafruit_blinka.microcontroller.ftdi_mpsse.mpsse.spi import (
+ SPI as _SPI,
+ )
elif detector.board.binho_nova:
from adafruit_blinka.microcontroller.nova.spi import SPI as _SPI
- #from adafruit_blinka.microcontroller.nova.pin import Pin
+ elif detector.board.greatfet_one:
+ from adafruit_blinka.microcontroller.nxp_lpc4330.spi import SPI as _SPI
+ elif detector.board.any_lubancat and detector.chip.id == ap_chip.IMX6ULL:
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif detector.board.pico_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_Pico as _SPI
+ elif detector.board.feather_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather as _SPI,
+ )
+ elif detector.board.feather_can_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather_CAN as _SPI,
+ )
+ elif detector.board.feather_epd_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather_EPD as _SPI,
+ )
+ elif detector.board.feather_rfm_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Feather_RFM as _SPI,
+ )
+ elif detector.board.itsybitsy_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_ItsyBitsy as _SPI,
+ )
+ elif detector.board.macropad_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_MacroPad as _SPI,
+ )
+ elif detector.board.kb2040_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_KB2040 as _SPI,
+ )
+ elif detector.board.qtpy_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import SPI_QTPY as _SPI
+ elif detector.board.radxa_x4_u2if:
+ from adafruit_blinka.microcontroller.rp2040_u2if.spi import (
+ SPI_Radxa_X4 as _SPI,
+ )
+ elif detector.chip.id == ap_chip.RP2040:
+ from adafruit_blinka.microcontroller.rp2040.spi import SPI as _SPI
+ elif detector.board.any_siemens_iot2000:
+ from adafruit_blinka.microcontroller.am65xx.spi import SPI as _SPI
+ from adafruit_blinka.microcontroller.am65xx.pin import Pin
+ elif detector.board.any_embedded_linux:
+ from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
+ elif detector.board.OS_AGNOSTIC_BOARD:
+ from adafruit_blinka.microcontroller.generic_agnostic_board.spi import (
+ SPI as _SPI,
+ )
else:
- from machine import SPI as _SPI
- from machine import Pin
+ from adafruit_blinka.microcontroller.generic_micropython.spi import (
+ SPI as _SPI,
+ )
if self._locked:
# TODO check if #init ignores MOSI=None rather than unsetting, to save _pinIds attribute
phase=phase,
bits=bits,
firstbit=_SPI.MSB,
- sck=Pin(self._pins[0].id),
- mosi=Pin(self._pins[1].id),
- miso=Pin(self._pins[2].id)
)
else:
raise RuntimeError("First call try_lock()")
def deinit(self):
+ """Deinitialization"""
self._spi = None
self._pinIds = None
@property
def frequency(self):
+ """Return the baud rate if implemented"""
try:
return self._spi.frequency
- except AttributeError:
- raise NotImplementedError("Frequency attribute not implemented for this platform")
+ except AttributeError as error:
+ raise NotImplementedError(
+ "Frequency attribute not implemented for this platform"
+ ) from error
def write(self, buf, start=0, end=None):
+ """Write to the SPI device"""
return self._spi.write(buf, start, end)
def readinto(self, buf, start=0, end=None, write_value=0):
+ """Read from the SPI device into a buffer"""
return self._spi.readinto(buf, start, end, write_value=write_value)
- def write_readinto(self, buffer_out, buffer_in, out_start=0, out_end=None, in_start=0, in_end=None):
- return self._spi.write_readinto(buffer_out, buffer_in, out_start, out_end, in_start, in_end)
+ def write_readinto(
+ self, buffer_out, buffer_in, out_start=0, out_end=None, in_start=0, in_end=None
+ ):
+ """Write to the SPI device and read from the SPI device into a buffer"""
+ return self._spi.write_readinto(
+ buffer_out, buffer_in, out_start, out_end, in_start, in_end
+ )
class UART(Lockable):
+ """
+ Busio UART Class for CircuitPython Compatibility. Used
+ for MicroPython and a few other non-Linux boards.
+ """
+
class Parity(Enum):
- pass
+ """Parity Enumeration"""
+
+ pass # pylint: disable=unnecessary-pass
Parity.ODD = Parity()
Parity.EVEN = Parity()
- def __init__(self,
- tx,
- rx,
- baudrate=9600,
- bits=8,
- parity=None,
- stop=1,
- timeout=1000,
- receiver_buffer_size=64,
- flow=None):
+ def __init__(
+ self,
+ tx,
+ rx,
+ baudrate=9600,
+ bits=8,
+ parity=None,
+ stop=1,
+ timeout=1000,
+ receiver_buffer_size=64,
+ flow=None,
+ ):
if detector.board.any_embedded_linux:
- raise RuntimeError('busio.UART not supported on this platform. Please use pyserial instead.')
- elif detector.board.binho_nova:
+ raise RuntimeError(
+ "busio.UART not supported on this platform. Please use pyserial instead."
+ )
+ if detector.board.binho_nova:
from adafruit_blinka.microcontroller.nova.uart import UART as _UART
+ elif detector.board.greatfet_one:
+ from adafruit_blinka.microcontroller.nxp_lpc4330.uart import UART as _UART
+ elif detector.chip.id == ap_chip.RP2040:
+ from adafruit_blinka.microcontroller.rp2040.uart import UART as _UART
else:
from machine import UART as _UART
- if detector.board.binho_nova:
- from adafruit_blinka.microcontroller.nova.pin import uartPorts
- else:
- from microcontroller.pin import uartPorts
+ from microcontroller.pin import uartPorts
self.baudrate = baudrate
if flow is not None: # default 0
raise NotImplementedError(
- "Parameter '{}' unsupported on {}".format(
- "flow", agnostic.board_id))
+ "Parameter '{}' unsupported on {}".format("flow", agnostic.board_id)
+ )
# translate parity flag for Micropython
if parity is UART.Parity.ODD:
else:
raise ValueError("Invalid parity")
- # check tx and rx have hardware support
- for portId, portTx, portRx in uartPorts: #
- if portTx == tx and portRx == rx:
- self._uart = _UART(
- portId,
- baudrate,
- bits=bits,
- parity=parity,
- stop=stop,
- timeout=timeout,
- read_buf_len=receiver_buffer_size
- )
- break
- else:
- raise ValueError(
- "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format((tx, rx), uartPorts)
+ if detector.chip.id == ap_chip.RP2040:
+ self._uart = _UART(
+ tx,
+ rx,
+ baudrate=baudrate,
+ bits=bits,
+ parity=parity,
+ stop=stop,
)
+ else:
+ # check tx and rx have hardware support
+ for portId, portTx, portRx in uartPorts: #
+ if portTx == tx and portRx == rx:
+ self._uart = _UART(
+ portId,
+ baudrate,
+ bits=bits,
+ parity=parity,
+ stop=stop,
+ timeout=timeout,
+ read_buf_len=receiver_buffer_size,
+ )
+ break
+ else:
+ raise ValueError(
+ "No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format(
+ (tx, rx), uartPorts
+ )
+ )
def deinit(self):
+ """Deinitialization"""
if detector.board.binho_nova:
self._uart.deinit()
self._uart = None
def read(self, nbytes=None):
+ """Read from the UART"""
return self._uart.read(nbytes)
def readinto(self, buf, nbytes=None):
+ """Read from the UART into a buffer"""
return self._uart.readinto(buf, nbytes)
def readline(self):
+ """Read a line of characters up to a newline character from the UART"""
return self._uart.readline()
def write(self, buf):
+ """Write to the UART from a buffer"""
return self._uart.write(buf)
projects / Adafruit_Blinka-hackapet.git / blobdiff