def pretty_print(string_val, bits=32):
val = int(string_val)
bits = BitLogic(bits)
bits[:] = val
lst = bits.toByteList(True)
lst_hex = map(hex, bits.toByteList(False))
print "Int ", lst
print "Hex ", lst_hex
print "Binary ", bits
def run_tests():
chip = TPX3()
# TODO: some way to not initialize the hardware?
chip.init()
dac = "Vfbk"
dac_bits = chip.dac_valsize_map[dac]
# some number larger than the allowed value
val_large = 2**(dac_bits + 2)
val_allowed = 2**(dac_bits - 1)
print dac_bits, val_allowed
# Don't want to bother with unittest module for now, so poor man's
# "assertraises"
try:
# check if ValueError is correctly raised
chip.set_dac(dac, val_large, write=False)
raise Exception
except ValueError:
pass
dac_set = chip.getGlobalSyncHeader()
assert (dac_set == [0xAA, 0x00, 0x00, 0x00, 0x00])
# set DAC is command 0x02
dac_set += [0x02] # , 0x00]
# val_allowed is last part of returned array
from basil.utils.BitLogic import BitLogic
bits = BitLogic(16)
bits[13:5] = val_allowed
bits[4:0] = 0x05
print bits.toByteList()
# dac_set += [val_allowed]
# Vfkb has DAC code 0x05
# dac_set += [0x05]
dac_set += bits.toByteList()
print "Return value of set_dac ".ljust(30), chip.set_dac(dac,
val_allowed,
write=False)
print "Value we expect?! ".ljust(30), dac_set
assert (chip.set_dac(dac, val_allowed, write=False) == dac_set)
dac_read = chip.getGlobalSyncHeader()
# read DAC is command 0x03
dac_read += [0x03]
# empty byte
dac_read += [0x00]
# add DAC code of Vfkb, which is 0x05
dac_read += [0x05]
print "Return value of read_dac ".ljust(30), chip.read_dac(dac,
write=False)
print "Value we expect?!".ljust(30), dac_read
print "Value we officially expect".ljust(30), chip.read_dac_exp(
dac, val_allowed)
assert (chip.read_dac(dac, write=False) == dac_read)
print("All tests done")
