class Clock(GPIO):
IO = ['I', In(Bit), "O", Out(Bit)]
def __init__(self, fpga, name):
GPIO.__init__(self, fpga, name)
class Joystick(Part):
name = 'joystick'
IO = [
"SELECT",
Out(Bit), "UP",
Out(Bit), "DOWN",
Out(Bit), "LEFT",
Out(Bit), "RIGHT",
Out(Bit)
]
def __init__(self, name='Joystick', board=None):
super(Joystick, self).__init__(name, board)
self.select = True
self.up = False
self.down = False
self.left = False
self.right = False
self.debounce = False
def init(self,
select=None,
up=None,
down=None,
left=None,
right=None,
debounce=None):
if select is not None:
self.select = select
if up is not None:
self.up = up
if down is not None:
self.down = down
if left is not None:
self.left = left
if right is not None:
self.right = right
if debounce is not None:
self.debounce = debounce
return self
def on(self):
if self.select:
gpio = self.SELECT.getgpio()
gpio.input().on()
if self.up:
gpio = self.UP.getgpio()
gpio.input().on()
if self.down:
gpio = self.DOWN.getgpio()
gpio.input().on()
if self.left:
gpio = self.LEFT.getgpio()
gpio.input().on()
if self.right:
gpio = self.RIGHT.getgpio()
gpio.input().on()
Part.on(self)
return self
# need to turn on parts ...
def setup(self, main):
return
if self.debounce:
slow = Counter(16)
if hasattr(main, 'SELECT'):
main.SELECT = falling(debounce(main.SELECT, slow.COUT))
if hasattr(main, 'UP'):
main.UP = falling(debounce(main.UP, slow.COUT))
if hasattr(main, 'DOWN'):
main.DOWN = falling(debounce(main.DOWN, slow.COUT))
if hasattr(main, 'LEFT'):
main.LEFT = falling(debounce(main.LEFT, slow.COUT))
if hasattr(main, 'RIGHT'):
main.RIGHT = falling(debounce(main.RIGHT, slow.COUT))
class USART(Peripheral):
name = 'usart'
IO = ["RX", In(Bit), "TX", Out(Bit)]
def __init__(self, fpga, name='usart0'):
super(USART,self).__init__(fpga, name)
from magma import DefineCircuit, EndCircuit, In, Out, Bit, Clock
__all__ = ['DFF', 'FF']
_DFF = DefineCircuit('DFF', "D", In(Bit), "CLK", In(Clock), "Q", Out(Bit))
_DFF.verilog = '''\
always @(posedge CLK) begin
Q <= D;
end'''
EndCircuit()
def DFF(init=0, has_ce=False, has_reset=False, has_set=False):
ff = _DFF()
#args = ['I', ff.D, 'CLK', ff.CLK]
#if has_ce:
# args += ['CE', ff.E]
#if has_reset:
# args += ['RESET', ff.R]
#if has_set:
# args += ['SET', ff.S]
#args += ['O', ff.Q]
#return AnonymousCircuit(args)
return ff
FF = DFF
