def start_client(args):
trace.writeline('start client')
sckt = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sckt.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sckt.bind(my_addr)
sckt.settimeout(10)
timeouted = 0
try:
for i in range(100):
# print 'Type digit [0-9] >',
# sys.stdout.flush()
#c = raw_input()
digit = i % 10
c = chr(digit + 48)
print i, c, '-->', xbee_addr
sckt.sendto(c, xbee_addr)
try:
msg, addr = sckt.recvfrom(32)
trace.writeline("Received ->", msg, addr)
except socket.timeout as e:
print e
timeouted += 1
finally:
sckt.close()
print 'timeouted =', timeouted
def get_adc(channel):
# Only 2 channels 0 and 1 else return -1
if ((channel > 1) or (channel < 0)):
return -1
cmd = 0b01101000 | (channel << 4)
trace.writeline('cmd=', cmd)
r = spi.xfer2([cmd, 0x00])
trace.writeline('r=', r)
return ((r[0] << 8) + r[1]) & 0x03FF
def test():
sd = serial.Serial(serial_dev,
baudrate=115200,
bytesize=serial.EIGHTBITS,
parity=serial.PARITY_NONE,
stopbits=serial.STOPBITS_ONE,
timeout=5)
print sd
for i in range(1000):
digit = i % 10
c = chr(digit + 48)
trace.writeline(i, '>>', c)
sd.write(c)
confirm_ack(sd)
time.sleep(0.01)
sd.close()
def xfer(clockpin, mosipin, misopin, cspin, dataout):
datain = []
GPIO.output(cspin, True)
GPIO.output(clockpin, False) # start clock low
GPIO.output(cspin, False) # bring CS low
for tran in dataout:
recv = 0x00
for i in range(8):
#
# transmit data
# Set MOSI to Hi/Low
#
if tran & 0x80:
trace.writeline('OUT:', i, '1')
GPIO.output(mosipin, True)
else:
trace.writeline('OUT:', i, '0')
GPIO.output(mosipin, False)
tran <<= 1
#
# recieve data
# Read MISO
#
recv <<= 1
if GPIO.input(misopin):
trace.writeline('IN', i, '1')
recv |= 0x01
else:
trace.writeline('IN', i, '0')
# Clock in
GPIO.output(clockpin, True)
GPIO.output(clockpin, False)
datain.append(recv)
assert len(dataout) == len(datain)
print '[SPI MOSI]:',
for v in dataout:
print format(v, '08b'),
else:
print '.'
print '[SPI MISO]:',
for v in datain:
print format(v, '08b'),
else:
print '.'
return datain
def start_client(args):
trace.writeline("Start listening...")
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
sock.bind(my_addr)
sock.settimeout(10)
try:
while True:
try:
frame, addr = sock.recvfrom(32)
print datetime.datetime.now(), "Received -> %d bytes from " % len(frame), addr
process_frame(frame)
except socket.timeout:
pass
finally:
sock.close()
def confirm_ack(sd):
ack = sd.read(3)
trace.writeline('<<', ack)
assert ack.upper() == 'ACK'