def test_protocol():
for k in command_list.keys():
print 'Testing checksum verification for command: %s' % k
assert verify_checksum(run_command(k, d1='\x10', d2='\x20'))
print 'Testing if ACK returns correct protocol version...'
assert read_ack('\xca\x00\x01\x00\x02\x00\x01\xfb')
assert not read_ack('\xca\x00\x01\x00\x02\x00\x01\xfa')
print 'Testing if ERROR response is translated.'
assert check_response_error(
'\xca\x00\x01\x0f\x02\x01\x08\x33\x96\x1b') == 'Bad command - not recognized by slave (Error Code: 8)'
assert check_response_error(
'\xca\x00\x01\x0f\x02\x01\x08\x33\x96\x1a') == 'Response Checksum Error'
assert check_response_error(
'\xca\x00\x01\x0f\x02\x01\x08\x33\x96\x1a') == 'Response Checksum Error'
print 'Testing read_analog_values...'
assert read_analog_values('\xCA\x00\x01\x70\x03\x11\x00\xC8\xB2') == (3, 'deg_C', 0.1, 200)
assert read_analog_values('\xCA\x00\x01\xF0\x03\x11\x00\xFA\x00') == (3, 'deg_C', 0.1, 250)
print 'Testing examples checksums...'
assert verify_checksum('\xCA\x00\x01\x70\x00\x8E') # Req_setp1
assert verify_checksum('\xCA\x00\x01\x70\x03\x11\x00\xC8\xB2')
assert verify_checksum('\xCA\x00\x01\xF0\x02\x00\xFA\x12')
assert verify_checksum('\xCA\x00\x01\xF0\x03\x11\x00\xFA\x00')
print 'Testing examples commands...'
assert run_command('req_setp1') == '\xCA\x00\x01\x70\x00\x8E'
assert run_command('set_setp1', d1=chr(0), d2=chr(250)) == '\xCA\x00\x01\xF0\x02\x00\xFA\x12'
def read_temperature(self):
temperatures = ['req_temp1'] #, 'req_temp2']
results = {}
for i in temperatures:
comm = run_command(i)
self._write(comm)
n_bytes, unit, prec, data = read_analog_values(self._read(flush = False))
temperature = float(prec)*float(data)
results[command_list[i][0]] = [temperature, unit]
return results
def read_temperature(self):
temperatures = ['req_temp1'] #, 'req_temp2']
results = {}
for i in temperatures:
comm = run_command(i)
self._write(comm)
n_bytes, unit, prec, data = read_analog_values(
self._read(flush=False))
temperature = float(prec) * float(data)
results[command_list[i][0]] = [temperature, unit]
return results
def read_pressure(self):
pressures = []
for i in range(1,7):
analog = 'req_analog' + str(i)
pressures.append(analog)
results = {}
for i in pressures:
comm = run_command(i)
self._write(comm)
n_bytes, unit, prec, data = read_analog_values(self._read(flush = False))
press = float(prec)*float(data)
results[command_list[i][0]] = [press, unit]
return results
def read_pressure(self):
pressures = []
for i in range(1, 7):
analog = 'req_analog' + str(i)
pressures.append(analog)
results = {}
for i in pressures:
comm = run_command(i)
self._write(comm)
n_bytes, unit, prec, data = read_analog_values(
self._read(flush=False))
press = float(prec) * float(data)
results[command_list[i][0]] = [press, unit]
return results