kopia lustrzana https://github.com/micropython/micropython-lib
SquirtleSquadLeader
GitHub
rodzic
9dcdd0606b
commit
ce4a579b6e
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@ -34,8 +34,6 @@
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Q unsigned long long 8
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f float 4
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d double 8
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"""
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from machine import I2C
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@ -44,8 +42,7 @@ from struct import pack, unpack
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class RORegBit:
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def __init__(self, i2c, dev_addr, reg_addr, num_bytes, bit_location, endian='', fmt='B'):
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"""
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Creates an :class:`RORegBit` object which allows read only access to a single bit within a register.
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Creates an :class:`RORegBit` object which allows read only access to a single bit within a register.
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:param i2c: I2C bus which connects the host system to the peripheral device
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:type kind: machine.I2C()
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@ -780,8 +777,7 @@ def __setreg(reg_object, settings):
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if isinstance(reg_object, RWReg):
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if isinstance(settings, (bytes, bytearray)):
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# Write to device
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reg_object._i2c.writeto_mem(reg_object._dev_addr, reg_object._reg_addr, settings)
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reg_object._i2c.writeto_mem(reg_object._dev_addr, reg_object._reg_addr, settings)
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elif isinstance(settings, (tuple, list)):
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# Where our data will go
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@ -809,8 +805,7 @@ def __calc_mask(lsb, msb, numbytes):
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Takes in full description of bitfield that needs masking
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returns ints() pre, mask, post
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"""
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"""
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# Check input types
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if lsb.__class__() == int() and lsb >= 0:
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if msb.__class__() == int() and msb >= 0:
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@ -894,106 +889,3 @@ def __check_reg(reg_object):
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raise TypeError("format and endian must be of type str()")
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else:
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raise TypeError("incorrect object type - must be ROReg, RWReg, ROBits, RWBits, ROReg, RWReg")
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class Transaction:
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"""
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The user can supply a transaction object with a list of any number of
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Register objects. The Transaction object will then perform one I2C
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transaction and return all data as a list OR perform all write operations.
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1) The Register objects should all be from one physical I2C device
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2) True = Read, False = Write (Default is read)
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3) Reads can be from non-sequential registers
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4) Writes can be made only to sequential registers OR more than one
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transaction will be generated
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i.e.
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# Define Register objects
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register1 = ROBits()
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register2 = ROBits()
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register3 = ROBits()
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# Create list object containing only Register objects
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list_of_registers = [register1, register2, register3]
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# Instantiate Transaction object
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data_from_device = Transaction(list_of_registers)
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# Retrieve data
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data = data_from_device.__get__()
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# Use data as desired
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datapoint_1 = data_from_device[0]
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datapoint_2 = data_from_device[1]
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datapoint_3 = data_from_device[2]
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"""
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def __init__(self, read_or_write:bool = True, list_of_registers:list() =[]):
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# Data
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self.__list_of_registers = list_of_registers
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# Check if it is a list
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if self.__list_of_registers.__class__() == list():
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for reg in self.__list_of_registers:
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# Check each element against all possible Register types
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if self.__list_of_registers[reg].__class__() in [RORegBit, RORegBits, RWRegBit, RWRegBits, RORegStruct]:
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pass
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else:
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# Error - list_element[reg] not a register object
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pass
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else:
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# Error - list_of_registers object must be list()
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pass
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def add_reg(self, reg_object):
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"""
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This function allows for register objects to be added to an already
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instantiated Transaction object
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"""
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if reg_object.__class__() in [RORegBit, RORegBits, RWRegBit, RWRegBits, RORegStruct]:
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self.__list_of_registers.append(reg_object)
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self._order_list()
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else:
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# Error - reg object of incorrect type()
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pass
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def rem_reg(self, index):
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"""
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This function allows for a register object to be removed from an
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already instantiated transaction object
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"""
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if index in range(0, len(self.__list_of_registers)):
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# Remove element
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self.__list_of_registers.remove(index)
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else:
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# Error - index out of bounds
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pass
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def order_list(self):
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"""
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Sorts list of registers by register address
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"""
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self.__list_of_registers = sorted(self.__list_of_registers, key=lambda reg:reg.reg_addr)
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def data(self):
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"""
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Performs 1 i2c transaction and returns data as list
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"""
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