def fpga_read_data_at_address(self, address):
"""Set the current address and read a value from it."""
c_address = ct.ubyte(address)
c_value = ct.ubyte()
self._raise_on_error(
_dll.LthsFpgaReadDataAtAddress(self._handle, c_address,
ct.byref(c_value)))
return c_value.value
def fpga_i2c_send_byte(self, address, value):
"""Send a value to an address over bit-banged I2C via FPGA register.
address must be a 7-bit address, it will be left shifted internally.
"""
c_address = ct.ubyte(address)
c_value = ct.ubyte(value)
self._raise_on_error(
_dll.LthsFpgaI2cSendByte(self._handle, c_address, c_value))
def divide(first_operand, second_operand):
"""
Divides the first operand by the second
:param first_operand: The dividend
:param second_operand: The divisor
:return: A tuple -> (division result, remainder)
"""
first_operand, second_operand = ubyte(first_operand).value, ubyte(second_operand).value
return ubyte(first_operand / second_operand).value, ubyte(first_operand % second_operand).value
def fpga_i2c_receive_byte(self, address):
"""
Receive a value from an address over bit-banged I2C via FPGA register.
address must be a 7-bit address, it will be left shifted and the read
bit will be set internally. The received value is returned.
"""
c_address = ct.ubyte(address)
c_value = ct.ubyte()
self._raise_on_error(
_dll.LthsFpgaI2cReceiveByte(self._handle, c_address,
ct.byref(c_value)))
return c_value.value
def fpga_i2c_set_bit_bang_register(self, register_address):
"""Set the FPGA register used to do bit-banged I2C.
If not called, address used is 0x11.
"""
c_register_address = ct.ubyte(register_address)
self._raise_on_error(
_dll.LthsFpgaI2cSetBitBangRegister(self._handle,
c_register_address))
def gpio_read_low_byte(self):
"""Read the GPIO low byte and return the value"""
c_value = ct.ubyte()
self._raise_on_error(
_dll.LthsGpioReadLowByte(self._handle, ct.byref(c_value)))
return c_value.value
def gpio_write_low_byte(self, value):
"""Set the GPIO low byte to a value."""
c_value = ct.ubyte(value)
self._raise_on_error(_dll.LthsGpioWriteLowByte(self._handle, c_value))
def gpio_read_high_byte(self):
"""Read the GPIO high byte and return the value."""
c_value = ct.ubyte()
self._raise_on_error(
_dll.LthsGpioReadHighByte(self._handle, ct.byref(c_value)))
return c_value.value
def fpga_write_data_at_address(self, address, value):
"""Set the current address and write a value to it."""
c_address = ct.ubyte(address)
c_value = ct.ubyte(value)
self._raise_on_error(
_dll.LthsFpgaWriteDataAtAddress(self._handle, c_address, c_value))
def fpga_read_data(self):
"""Read a value from the current FPGA address and return it."""
c_value = ct.ubyte()
self._raise_on_error(
_dll.LthsFpgaReadData(self._handle, ct.byref(c_value)))
return c_value.value
def fpga_write_data(self, value):
"""Write a value to the current FPGA address."""
c_value = ct.ubyte(value)
self._raise_on_error(_dll.LthsFpgaWriteData(self._handle, c_value))
def fpga_write_address(self, address):
"""Set the FPGA address to write or read."""
c_address = ct.ubyte(address)
self._raise_on_error(_dll.LthsFpgaWriteAddress(self._handle,
c_address))
