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.')
else:
from machine import UART as _UART
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))
# translate parity flag for Micropython
if parity is UART.Parity.ODD:
parity = 1
elif parity is UART.Parity.EVEN:
parity = 0
elif parity is None:
pass
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 NotImplementedError(
"No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format((tx, rx), uartPorts)
)
def __init__(self, tx, rx, baudrate=9600, bits=8, parity=None, stop=1):
# check tx and rx have hardware support
for portId, txPin, rxPin in uartPorts:
if txPin == tx and rxPin == rx:
self._uart = _UART(
portId,
baudrate,
bits=bits,
parity=parity,
stop=stop,
tx=Pin(txPin.id),
rx=Pin(rxPin.id),
)
break
else:
raise ValueError(
"No Hardware UART on (tx,rx)={}\nValid UART ports: {}".format(
(tx.id, rx.id), uartPorts))
