def InitBscope(self, int_size, endian, clock, length): # Bandscope initialization; accept raw samples from the ADC # You may call this once from your hardware __init__() after calling InitSamples(). The bandscope format can not be changed. # int_size is the number of bytes in each sample: 1, 2, 3, or 4 # endian is the order of bytes in the sample: 0 == little endian; 1 == big endian # clock is the integer ADC sample rate in Hertz # length is the number of samples in each block of ADC samples, and equals the FFT size. QS.set_params(bscope_bytes=int_size, bscope_endian=endian, bscope_size=length) self.application.bandscope_clock = clock
def InitSamples(
self, int_size, endian
): # Rx sample initialization; you must call this from your hardware __init__().
# int_size is the number of bytes in each I or Q sample: 1, 2, 3, or 4
# endian is the order of bytes in the sample: 0 == little endian; 1 == big endian
# This can be called again to change the format. For example, a different number of bytes for different sample rates.
QS.set_params(rx_bytes=int_size, rx_endian=endian)
self.application.samples_from_python = True
def GotReadError(self, print_msg, msg): # Call this to indicate an error in receiving the Rx samples.
if print_msg:
print(msg)
QS.set_params(read_error=1)
def GotClip(self): # Call this to indicate that samples were received with the clip (overrange) indicator true. QS.set_params(clip=1)
def ProgramGateware(
self, event): # Program the Gateware (FPGA firmware) over Ethernet
title = "Program the Gateware"
main_frame = self.application.main_frame
dlg = wx.FileDialog(
main_frame,
message='Choose an RBF file for programming the Gateware',
style=wx.FD_OPEN,
wildcard="RBF files (*.rbf)|*.rbf")
if dlg.ShowModal() == wx.ID_OK:
path = dlg.GetPath()
dlg.Destroy()
else:
dlg.Destroy()
return
timeout = 0.2 # socket timeout in seconds
erase_time = 50 # in units of timeout
hermes_ip = self.hermes_ip
hermes_mac = self.hermes_mac
if not hermes_ip:
msg = wx.MessageDialog(main_frame, "No Hermes hardware was found.",
title, wx.OK | wx.ICON_ERROR)
msg.ShowModal()
msg.Destroy()
return
try:
fp = open(path, "rb")
size = os.stat(path).st_size
except:
msg = wx.MessageDialog(main_frame,
"Can not read the RBF file specified.",
title, wx.OK | wx.ICON_ERROR)
msg.ShowModal()
msg.Destroy()
return
for i in range(10):
state = QS.set_params(hermes_pause=1)
#print ("state", state)
if state == 23:
break
else:
time.sleep(0.05)
else:
msg = wx.MessageDialog(
main_frame,
"Failure to find a running Hermes and stop the samples.",
title, wx.OK | wx.ICON_ERROR)
msg.ShowModal()
msg.Destroy()
fp.close()
return
blocks = (size + 255) // 256
dlg = wx.ProgressDialog(title, "Erase old program...", blocks + 1,
main_frame, wx.PD_APP_MODAL)
program_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
program_socket.settimeout(timeout)
port = self.conf.rx_udp_port
program_socket.connect((hermes_ip, port))
cmd = bytearray(64) # Erase command
cmd[0] = 0xEF
cmd[1] = 0xFE
cmd[2] = 0x03
cmd[3] = 0x02
program_socket.send(cmd)
success = False
for i in range(erase_time):
dlg.Update(i * blocks // erase_time)
try:
reply = program_socket.recv(1500)
except socket.timeout:
pass
else:
reply = bytearray(reply)
if reply[0:3] == bytearray(
b"\xEF\xFE\03") and reply[3:9] == hermes_mac:
success = True
break
if not success:
dlg.Destroy()
self.application.Yield()
fp.close()
msg = wx.MessageDialog(
main_frame,
"Failure to erase the old program. Please push the Program button again.",
title, wx.OK | wx.ICON_ERROR)
msg.ShowModal()
msg.Destroy()
program_socket.close()
return
dlg.Update(0, "Programming...")
cmd = bytearray(8)
cmd[0] = 0xEF
cmd[1] = 0xFE
cmd[2] = 0x03
cmd[3] = 0x01
cmd[4] = (blocks >> 24) & 0xFF
cmd[5] = (blocks >> 16) & 0xFF
cmd[6] = (blocks >> 8) & 0xFF
cmd[7] = (blocks) & 0xFF
for block in range(blocks):
dlg.Update(block)
prog = fp.read(256)
if block == blocks - 1: # last block may have an odd number of bytes
prog = prog + bytearray(b"\xFF" * (256 - len(prog)))
if len(prog) != 256:
print("read wrong number of bytes for block", block)
success = False
break
try:
program_socket.send(cmd + prog)
reply = program_socket.recv(1500)
except socket.timeout:
print("Socket timeout while programming block", block)
success = False
break
else:
reply = bytearray(reply)
if reply[0:3] != bytearray(
b"\xEF\xFE\04") or reply[3:9] != hermes_mac:
print("Program failed at block", block)
success = False
break
fp.close()
for i in range(10): # throw away extra packets
try:
program_socket.recv(1500)
except socket.timeout:
break
if success:
dlg.Update(0, "Waiting for Hermes to start...")
wait_secs = 15 # number of seconds to wait for restart
cmd = bytearray(63) # Discover
cmd[0] = 0xEF
cmd[1] = 0xFE
cmd[2] = 0x02
program_socket.settimeout(1.0)
for i in range(wait_secs):
dlg.Update(i * blocks // wait_secs)
if i < 5:
time.sleep(1.0)
continue
program_socket.send(cmd)
try:
reply = program_socket.recv(1500)
except socket.timeout:
pass
else:
reply = bytearray(reply)
#print ("0x%X 0x%X %d 0x%X 0x%X 0x%X 0x%X 0x%X 0x%X %d %d" % tuple(reply[0:11]))
if reply[0] == 0xEF and reply[1] == 0xFE and reply[10] == 6:
self.hermes_mac = reply[3:9]
self.hermes_code_version = reply[9]
st = 'Capture from Hermes device: Mac %2x:%2x:%2x:%2x:%2x:%2x, Code version %d, ID %d' % tuple(
reply[3:11])
st += ', IP %s' % self.hermes_ip
self.config_text = st
#print (st)
self.application.config_text = st
self.application.main_frame.SetConfigText(st)
QS.set_params(hermes_pause=0)
break
dlg.Destroy()
self.application.Yield()
else:
dlg.Destroy()
self.application.Yield()
msg = wx.MessageDialog(
main_frame,
"Programming failed. Please push the Program button again.",
title, wx.OK | wx.ICON_ERROR)
msg.ShowModal()
msg.Destroy()
program_socket.close()
def pre_open(self):
# This socket is used for the Metis Discover protocol
self.discover_request = b"\xEF\xFE\x02" + b"\x00" * 60
self.socket_discover = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
self.socket_discover.setblocking(0)
self.socket_discover.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST,
1)
found = False
st = "No capture device found."
port = self.conf.rx_udp_port
for i in range(5):
if found:
break
if DEBUG: print('Send discover')
try:
for broadcast_addr in self.broadcast_addrs:
self.socket_discover.sendto(self.discover_request,
(broadcast_addr, port))
if DEBUG: print('discover_request', (broadcast_addr, port))
time.sleep(0.01)
except:
if DEBUG > 1: traceback.print_exc()
for j in range(5):
try:
data, addr = self.socket_discover.recvfrom(1500)
except:
if DEBUG > 1: traceback.print_exc()
time.sleep(0.02)
continue
else:
if DEBUG:
print('recvfrom', addr, 'length', len(data), "type",
type(data))
data = bytearray(data)
if len(data) > 32 and data[0] == 0xEF and data[1] == 0xFE:
if DEBUG: print('data', data)
ver = self.conf.hermes_code_version
bid = self.conf.hermes_board_id
if ver >= 0 and data[9] != ver:
pass
elif bid >= 0 and data[10] != bid:
pass
else:
st = 'Capture from Hermes device: Mac %2x:%2x:%2x:%2x:%2x:%2x, Code version %d, ID %d' % tuple(
data[3:11])
self.hermes_mac = data[3:9]
self.hermes_ip = addr[0]
self.hermes_code_version = data[9]
self.hermes_board_id = data[10]
QS.set_hermes_id(data[9], data[10])
if data[0x16] >> 6 == 0:
QS.set_params(bandscopeScale=2048)
if DEBUG: print(st)
adr = self.conf.rx_udp_ip
found = True
if adr and adr != addr[0]: # Change the IP address
if DEBUG:
print("Change IP address from %s to %s" %
(addr[0], adr))
ip = adr.split('.')
ip = list(map(int, ip))
cmd = bytearray(73)
cmd[0] = 0xEF
cmd[1] = 0xFE
cmd[2] = 0x03
cmd[3] = data[3]
cmd[4] = data[4]
cmd[5] = data[5]
cmd[6] = data[6]
cmd[7] = data[7]
cmd[8] = data[8]
cmd[9] = ip[0]
cmd[10] = ip[1]
cmd[11] = ip[2]
cmd[12] = ip[3]
for broadcast_addr in self.broadcast_addrs:
self.socket_discover.sendto(
cmd, (broadcast_addr, port))
time.sleep(0.01)
# Note: There is no response, contrary to the documentation
self.hermes_ip = adr
if False:
try:
data, addr = self.socket_discover.recvfrom(
1500)
except:
if DEBUG: traceback.print_exc()
else:
print(repr(data), addr)
##self.hermes_ip = adr
time.sleep(1.0)
st += ', IP %s' % self.hermes_ip
break
if not found and self.conf.udp_rx_ip:
self.hermes_ip = self.conf.udp_rx_ip
code = 62
bid = 6
self.hermes_code_version = code
self.hermes_board_id = bid
QS.set_hermes_id(code, bid)
st = 'Capture from Hermes device at specified IP %s' % self.hermes_ip
found = True
if found:
# Open a socket for communication with the hardware
msg = QS.open_rx_udp(self.hermes_ip, port)
if msg[0:8] != "Capture ":
st = msg # Error
self.socket_discover.close()
self.config_text = st
self.ChangeLNA(
2
) # Initialize the LNA using the correct LNA code from the FPGA code version
