class Uart():
def __init__(self, path, baud=115200, read_timeout=1):
self.impl = Serial(port=path, baudrate=baud, exclusive=True)
self.read_timeout = read_timeout
self.impl.reset_input_buffer()
self.impl.reset_output_buffer()
def __enter__(self, *args):
self.impl.__enter__()
return self
def __exit__(self, *args):
self.impl.__exit__()
''' Read data into buffer, return buffer '''
def read(self):
# Wait for data to be available
self.impl.timeout = self.read_timeout
self.impl.read(0)
# Read as much data as is available in the buffer
self.impl.timeout = 0
return self.impl.read(self.impl.inWaiting())
''' Write data from buffer '''
def write(self, data):
self.impl.write(data)
class Duck:
def __init__(self, *serial_device_parameters):
self.serial_device = Serial(*serial_device_parameters)
init_serial(self.serial_device)
def __enter__(self):
self.serial_device.__enter__()
return self
def __exit__(self, *exp):
self.serial_device.__exit__(*exp)
def run(self, op="NOP", verbose=False, read=True):
run_operation(self.serial_device, op, verbose, read)
def buffer_ramp(self, dac_channel, adc_channel, begin_voltage, end_voltage,
number_of_steps, delay_in_microsecs):
return _buffer_ramp(self.serial_device, dac_channel, adc_channel,
begin_voltage, end_voltage, number_of_steps,
delay_in_microsecs)
