Python deref示例

示例#1

文件： clockout.py 项目： kpykc/robovero-python

def run():
  clkoutcfg_reg = 0x400FC1C8
  
  PinCfg = PINSEL_CFG_Type()
  PinCfg.Portnum = 1
  PinCfg.Pinnum = 27
  PinCfg.Pinmode = 0
  PinCfg.OpenDrain = 0
  PinCfg.Funcnum = 1
  PINSEL_ConfigPin(PinCfg.ptr)
  
  print "Possible clock output frequencies:"
  for i in range(1, 17):
    print "%2d) %.2fMHz" % (i, 120.0/float(i))
  user_clkout_sel = raw_input("Enter your selection: ")
  
  try:
    clkout_sel = int(user_clkout_sel)
    if clkout_sel < 1 or clkout_sel > 16:
      raise InputError  
  except:
    print "error: invalid input"
    clkout_sel = 1
  
  clkoutcfg_val = deref(clkoutcfg_reg, 4)
  clkoutcfg_val &= 0xFFFFFF0F
  clkoutcfg_val += ((clkout_sel - 1) << 4)
  deref(clkoutcfg_reg, 4, clkoutcfg_val)
  
  print "You should now see a %.2fMHz square wave on P1_27" % (120.0/float(clkout_sel))
  
  while True:
    time.sleep(1)

示例#2

文件： clockout.py 项目： AutonomyLab/Raymond

PinCfg = PINSEL_CFG_Type()
PinCfg.Portnum = 1
PinCfg.Pinnum = 27
PinCfg.Pinmode = 0
PinCfg.OpenDrain = 0
PinCfg.Funcnum = 1
PINSEL_ConfigPin(PinCfg.ptr)

print "Possible clock output frequencies:"
for i in range(1, 17):
  print "%2d) %.2fMHz" % (i, 120.0/float(i))
user_clkout_sel = raw_input("Enter your selection: ")

try:
  clkout_sel = int(user_clkout_sel)
  if clkout_sel < 1 or clkout_sel > 16:
    raise InputError  
except:
  print "error: invalid input"
  clkout_sel = 1

clkoutcfg_val = deref(clkoutcfg_reg, 4)
clkoutcfg_val &= 0xFFFFFF0F
clkoutcfg_val += ((clkout_sel - 1) << 4)
deref(clkoutcfg_reg, 4, clkoutcfg_val)

print "You should now see a %.2fMHz square wave on P1_27" % (120.0/float(clkout_sel))

while True:
  pass

示例#3

PinCfg.Portnum = 1
PinCfg.Pinnum = 27
PinCfg.Pinmode = 0
PinCfg.OpenDrain = 0
PinCfg.Funcnum = 1
PINSEL_ConfigPin(PinCfg.ptr)

print "Possible clock output frequencies:"
for i in range(1, 17):
    print "%2d) %.2fMHz" % (i, 120.0 / float(i))
user_clkout_sel = raw_input("Enter your selection: ")

try:
    clkout_sel = int(user_clkout_sel)
    if clkout_sel < 1 or clkout_sel > 16:
        raise InputError
except:
    print "error: invalid input"
    clkout_sel = 1

clkoutcfg_val = deref(clkoutcfg_reg, 4)
clkoutcfg_val &= 0xFFFFFF0F
clkoutcfg_val += ((clkout_sel - 1) << 4)
deref(clkoutcfg_reg, 4, clkoutcfg_val)

print "You should now see a %.2fMHz square wave on P1_27" % (120.0 /
                                                             float(clkout_sel))

while True:
    pass