Ok, I’ll edit the script and get it running again.
I have the ChipWhisperer Pro, along with the CW308 with two targets boards: STM32F3 and XMega. I’m currently trying with the STM32.
I also have the CW Lite of my colleague (the one I had issues with the firmware programming). I got the firmware issue figure out, but not the one from this pane:
Okay try this on the CW308. There were some settings that weren’t being set by default. As you can see I put my parameters in already (the ones I mentioned above). This script does work very well for CWLITEARM now. Sorry for the confusion.
from enum import Enum
from tqdm import tnrange
%matplotlib inline
import matplotlib
import matplotlib.pyplot as plt
from collections import namedtuple
import time
import chipwhisperer as cw
import csv
import re
from datetime import datetime
SCOPETYPE = 'OPENADC'
PLATFORM = 'CWLITEARM'
sample_size = 5
if "STM" in PLATFORM or PLATFORM == "CWLITEARM" or PLATFORM == "CWNANO":
prog = cw.programmers.STM32FProgrammer
elif PLATFORM == "CW303" or PLATFORM == "CWLITEXMEGA":
prog = cw.programmers.XMEGAProgrammer
else:
prog = None
try:
if not scope.connectStatus:
scope.con()
except NameError:
scope = cw.scope()
target = cw.target(scope)
try:
if not scope.connectStatus:
scope.con()
except NameError:
scope = cw.scope()
target = cw.target(scope)
SCOPETYPE = 'OPENADC'
PLATFORM = 'CWLITEARM'
sample_size = 5
import time
time.sleep(0.05)
scope.default_setup()
def reset_target(scope):
scope.glitch.output = "glitch_only"
scope.glitch.clk_src = "clkgen"
scope.glitch.repeat = 9
scope.io.glitch_hp = True
scope.io.glitch_lp = False
if PLATFORM == "CW303" or PLATFORM == "CWLITEXMEGA":
scope.io.pdic = 'low'
time.sleep(0.05)
scope.io.pdic = 'high_z' #XMEGA doesn't like pdic driven high
time.sleep(0.05)
else:
scope.io.nrst = 'low'
time.sleep(0.05)
scope.io.nrst = 'high'
time.sleep(0.05)
def setup():
fw_path = "../hardware/victims/firmware/glitch-simple/glitchsimple-{}.hex".format(PLATFORM)
prog = cw.programmers.STM32FProgrammer
scope = cw.scope()
time.sleep(0.05)
scope.default_setup()
reset_target(scope)
print(fw_path)
cw.program_target(scope, prog, fw_path)
def rejection_builder():
Range = namedtuple('Range', ['min', 'max', 'step'])
step_size = (1/512)*100
#step_size = 1
min_value = -49
max_value = min_value*-1
width_range = Range(27, 28, step_size)
offset_range = Range(-20, -19, step_size)
loop_ext_offset = 1000
scope.glitch.ext_offset = loop_ext_offset
loop_ext_max = 1001
dataReset = [[],[]]
dataSuccess = [[],[]]
dataExpected = [[],[]]
result = Results.Expected
print("Starting loop: ")
#starting points
loop_offset = offset_range.min
loop_width = width_range.min
counter = 0
timestr = time.strftime("%Y-%m-%d__%H%M%S")
csv_file_name = 'rejection_builder_log' + timestr + ".csv"
f = open(csv_file_name,'w')
f.write("Time[ms],EXT_Offset, Offset, Width, Result, Raw Line \n")
starting_time = datetime.utcnow()
while loop_ext_offset < loop_ext_max:
loop_offset = offset_range.min
while loop_offset < offset_range.max:
loop_width = width_range.min
while loop_width < width_range.max:
date_time_delta = (datetime.utcnow() - starting_time)
seconds_elapsed = str(date_time_delta.total_seconds())
scope.glitch.width = loop_width
scope.glitch.ext_offset = loop_ext_offset
scope.glitch.offset = loop_offset
counter += 1
loop_width += width_range.step
try:
result, line = test_for_success(20)
except:
setup()
if result == Results.Success:
dataSuccess[0].append(loop_offset)
dataSuccess[1].append(loop_width)
print("Loop width: {}, Loop offset: {} Loop ext_offset: {} Result: {} Raw Line: {}" .format(loop_width, loop_offset, loop_ext_offset, result, line))
print("success")
elif result == Results.Expected:
dataExpected[0].append(loop_offset)
dataExpected[1].append(loop_width)
elif result == Results.Reset:
dataReset[0].append(loop_offset)
dataReset[1].append(loop_width)
line_list = list(map(str.strip,line))
line = ''.join(line_list)
result_string = str(result).strip("Result.")
f.write("{},{},{},{},{},{}\n".format(seconds_elapsed, loop_ext_max, loop_offset, loop_width, result_string, line))
print("Loop width: {}, Loop offset: {} Loop ext_offset: {} Result: {}" .format(loop_width, loop_offset, loop_ext_offset, result))
loop_offset += offset_range.step
loop_ext_offset += 1
f.close()
plt.scatter(dataReset[0], dataReset[1], marker='o')
plt.scatter(dataSuccess[0], dataSuccess[1], marker='x')
plt.scatter(dataExpected[0], dataExpected[1], marker='v')
#plt.scatter(dataSuccess[0], dataSuccess[1], 'r--', dataReset[0], dataReset[1], 'bs', dataExpected[0], dataExpected[1], 'g^')
plt.show()
class Results(Enum):
Reset = 0
Expected = 1
Success = 2
# Looks for a gltiched output
# If a success is detected it will break regardless of attempts left
# in order to reduce to a single data point of parameters
def test_for_success(attempts):
reset_target(scope)
target.flush()
scope.arm()
if SCOPETYPE == "OPENADC":
scope.glitch.trigger_src = "ext_continuous"
result = Results.Expected
line = ""
for j in range(attempts):
line = ""
while "\n" not in line:
time.sleep(0.1)
line += target.read()
lines = line.split("\n")
if len(lines) > 1:
line = lines[-1]
else:
line = ""
while "\n" not in line:
time.sleep(0.1)
line += target.read()
if "hello" in line:
result = Results.Reset
nums = line.split(" ")
try:
if (int(nums[0]) != 40000 or int(nums[1]) != 200 or int(nums[2]) != 200 ) and nums[0] != '':
result = Results.Success
break
except ValueError as e:
if(result != Results.Success):
continue
else:
break
if SCOPETYPE == "OPENADC":
scope.glitch.trigger_src = "ext_single"
return result, line
setup()
rejection_builder()Ok thanks, will try it tonight.
Shall I expect the same connection issues I had with the previous script? (Ref: VCC Glitching with CW1200 on STM32F3 (CW308))
I’m not quite sure what is causing that error. Are you putting in the script like this?
I’ve tried to make it quick to paste in. My only other thought is that you have something else using the device at the same time. It might be worth it to restart your VM, power cycle the CW, etc.
Yes, that’s exactly how I put it up. I’m running in Linux, so no VM.
Before you run my script can you go Kernel > Restart and Clear Output? Do all of the other cells work or (at least run) without exceptions raised?
Did that. Unplugged the CW, rebooted/restarted everything. I’m just running those 3 cells and I get the same error message. Then I try to run the Fault 2 tutorial and everything works (well, from a Python point of view of course).
So there’s something my setup does not like about your script. And it seems to have something to do with the actual connection to the CW (?!).
USBError Traceback (most recent call last)
~/chipwhisperer/software/chipwhisperer/capture/scopes/openadc_interface/naeusbchip.py in con(self, sn)
86 #sn = None
—> 87 found_id = self.dev.con(idProduct=nae_products, serial_number=sn)
88 except (IOError, ValueError):
~/chipwhisperer/software/chipwhisperer/capture/scopes/cwhardware/ChipWhispererLite.py in con(self, *args, **kwargs)
49 def con(self, *args, **kwargs):
—> 50 return self._cwusb.con(*args, **kwargs)
51
~/chipwhisperer/software/chipwhisperer/hardware/naeusb/naeusb.py in con(self, idProduct, connect_to_first, serial_number)
584
–> 585 self.usbseralizer.open(dev[‘sn’])
586 foundId = dev[‘pid’]
~/chipwhisperer/software/chipwhisperer/hardware/naeusb/naeusb.py in open(self, serial_number)
157 cmdpacket = self.make_cmd(self.OPEN, serial_number)
–> 158 return self.process_rx(self.txrx(tx=cmdpacket))
159
~/chipwhisperer/software/chipwhisperer/hardware/naeusb/naeusb.py in process_rx(self, inp)
150 if resp == self.ERROR:
–> 151 raise payload
152
USBError: [Errno None] None
During handling of the above exception, another exception occurred:
Warning Traceback (most recent call last)
in
229 return result, line
230
–> 231 setup()
232 rejection_builder()
in setup()
69
70 prog = cw.programmers.STM32FProgrammer
—> 71 scope = cw.scope()
72
73 time.sleep(0.05)
~/chipwhisperer/software/chipwhisperer/init.py in scope(scope_type, sn)
209 scope_type = get_cw_type(sn)
210 scope = scope_type()
–> 211 scope.con(sn)
212 return scope
213
~/chipwhisperer/software/chipwhisperer/capture/scopes/base.py in con(self, sn)
56
57 def con(self, sn=None):
—> 58 if self._con(sn):
59 self.connectStatus = True
60
~/chipwhisperer/software/chipwhisperer/capture/scopes/OpenADC.py in _con(self, sn)
201 def _con(self, sn=None):
202 if self.scopetype is not None:
–> 203 self.scopetype.con(sn)
204
205 self.qtadc.sc.usbcon = self.scopetype.ser._usbdev
~/chipwhisperer/software/chipwhisperer/capture/scopes/openadc_interface/naeusbchip.py in con(self, sn)
87 found_id = self.dev.con(idProduct=nae_products, serial_number=sn)
88 except (IOError, ValueError):
—> 89 raise Warning(‘Could not connect to “%s”. It may have been disconnected, is in an error state, or is being used by another tool.’ % self.getName())
90
91 if found_id != self.last_id:
Warning: Could not connect to “NewAE USB (CWLite/CW1200)”. It may have been disconnected, is in an error state, or is being used by another tool.
It crashed in the setup function. But this part is executed first:
try:
if not scope.connectStatus:
scope.con()
except NameError:
scope = cw.scope()target = cw.target(scope)
try:
if not scope.connectStatus:
scope.con()
except NameError:
scope = cw.scope()target = cw.target(scope)
First: Is it normal that the same code is there twice?
Second: Maybe this creates a connection, which ends up crashing when one is being created in the setup() function?
Ah sorry, that was an artifact of moving stuff around. This should also fix a matplotlib glitch.
from enum import Enum
from tqdm import tnrange
%matplotlib inline
import matplotlib
import matplotlib.pyplot as plt
from collections import namedtuple
import time
import chipwhisperer as cw
import csv
import re
from datetime import datetime
import time
if "STM" in PLATFORM or PLATFORM == "CWLITEARM" or PLATFORM == "CWNANO":
prog = cw.programmers.STM32FProgrammer
elif PLATFORM == "CW303" or PLATFORM == "CWLITEXMEGA":
prog = cw.programmers.XMEGAProgrammer
else:
prog = None
SCOPETYPE = 'OPENADC'
PLATFORM = 'CWLITEARM'
sample_size = 5
def reset_target(scope):
time.sleep(0.05)
scope.default_setup()
scope.glitch.output = "glitch_only"
scope.glitch.clk_src = "clkgen"
scope.glitch.repeat = 9
scope.io.glitch_hp = True
scope.io.glitch_lp = False
if PLATFORM == "CW303" or PLATFORM == "CWLITEXMEGA":
scope.io.pdic = 'low'
time.sleep(0.05)
scope.io.pdic = 'high_z' #XMEGA doesn't like pdic driven high
time.sleep(0.05)
else:
scope.io.nrst = 'low'
time.sleep(0.05)
scope.io.nrst = 'high'
time.sleep(0.05)
def setup():
fw_path = "../hardware/victims/firmware/glitch-simple/glitchsimple-{}.hex".format(PLATFORM)
prog = cw.programmers.STM32FProgrammer
scope = cw.scope()
time.sleep(0.05)
scope.default_setup()
reset_target(scope)
print(fw_path)
cw.program_target(scope, prog, fw_path)
def rejection_builder():
Range = namedtuple('Range', ['min', 'max', 'step'])
step_size = (1/512)*100
#step_size = 1
min_value = -49
max_value = min_value*-1
width_range = Range(27, 28, step_size)
offset_range = Range(-20, -19, step_size)
loop_ext_offset = 1000
scope.glitch.ext_offset = loop_ext_offset
loop_ext_max = 1001
dataReset = [[],[]]
dataSuccess = [[],[]]
dataExpected = [[],[]]
result = Results.Expected
print("Starting loop: ")
#starting points
loop_offset = offset_range.min
loop_width = width_range.min
counter = 0
timestr = time.strftime("%Y-%m-%d__%H%M%S")
csv_file_name = 'rejection_builder_log' + timestr + ".csv"
f = open(csv_file_name,'w')
f.write("Time[ms],EXT_Offset, Offset, Width, Result, Raw Line \n")
starting_time = datetime.utcnow()
while loop_ext_offset < loop_ext_max:
loop_offset = offset_range.min
while loop_offset < offset_range.max:
loop_width = width_range.min
while loop_width < width_range.max:
date_time_delta = (datetime.utcnow() - starting_time)
seconds_elapsed = str(date_time_delta.total_seconds())
scope.glitch.width = loop_width
scope.glitch.ext_offset = loop_ext_offset
scope.glitch.offset = loop_offset
counter += 1
loop_width += width_range.step
try:
result, line = test_for_success(20)
except:
setup()
if result == Results.Success:
dataSuccess[0].append(loop_offset)
dataSuccess[1].append(loop_width)
print("Loop width: {}, Loop offset: {} Loop ext_offset: {} Result: {} Raw Line: {}" .format(loop_width, loop_offset, loop_ext_offset, result, line))
print("success")
elif result == Results.Expected:
dataExpected[0].append(loop_offset)
dataExpected[1].append(loop_width)
elif result == Results.Reset:
dataReset[0].append(loop_offset)
dataReset[1].append(loop_width)
line_list = list(map(str.strip,line))
line = ''.join(line_list)
result_string = str(result).strip("Result.")
f.write("{},{},{},{},{},{}\n".format(seconds_elapsed, loop_ext_max, loop_offset, loop_width, result_string, line))
print("Loop width: {}, Loop offset: {} Loop ext_offset: {} Result: {}" .format(loop_width, loop_offset, loop_ext_offset, result))
loop_offset += offset_range.step
loop_ext_offset += 1
f.close()
plt.scatter(dataReset[0], dataReset[1], marker='o')
plt.scatter(dataSuccess[0], dataSuccess[1], marker='x')
plt.scatter(dataExpected[0], dataExpected[1], marker='v')
plt.show()
class Results(Enum):
Reset = 0
Expected = 1
Success = 2
# Looks for a gltiched output
# If a success is detected it will break regardless of attempts left
# in order to reduce to a single data point of parameters
def test_for_success(attempts):
reset_target(scope)
target.flush()
scope.arm()
if SCOPETYPE == "OPENADC":
scope.glitch.trigger_src = "ext_continuous"
result = Results.Expected
line = ""
for j in range(attempts):
line = ""
while "\n" not in line:
time.sleep(0.1)
line += target.read()
lines = line.split("\n")
if len(lines) > 1:
line = lines[-1]
else:
line = ""
while "\n" not in line:
time.sleep(0.1)
line += target.read()
if "hello" in line:
result = Results.Reset
nums = line.split(" ")
try:
if (int(nums[0]) != 40000 or int(nums[1]) != 200 or int(nums[2]) != 200 ) and nums[0] != '':
result = Results.Success
break
except ValueError as e:
if(result != Results.Success):
continue
else:
break
if SCOPETYPE == "OPENADC":
scope.glitch.trigger_src = "ext_single"
return result, line
try:
if not scope.connectStatus:
scope.con()
except NameError:
scope = cw.scope()
target = cw.target(scope)
setup()
rejection_builder()@aross I am baffled. Error again 
USBError Traceback (most recent call last)
~/chipwhisperer/software/chipwhisperer/capture/scopes/openadc_interface/naeusbchip.py in con(self, sn)
86 #sn = None
—> 87 found_id = self.dev.con(idProduct=nae_products, serial_number=sn)
88 except (IOError, ValueError):
~/chipwhisperer/software/chipwhisperer/capture/scopes/cwhardware/ChipWhispererLite.py in con(self, *args, **kwargs)
49 def con(self, *args, **kwargs):
—> 50 return self._cwusb.con(*args, **kwargs)
51
~/chipwhisperer/software/chipwhisperer/hardware/naeusb/naeusb.py in con(self, idProduct, connect_to_first, serial_number)
584
–> 585 self.usbseralizer.open(dev[‘sn’])
586 foundId = dev[‘pid’]
~/chipwhisperer/software/chipwhisperer/hardware/naeusb/naeusb.py in open(self, serial_number)
157 cmdpacket = self.make_cmd(self.OPEN, serial_number)
–> 158 return self.process_rx(self.txrx(tx=cmdpacket))
159
~/chipwhisperer/software/chipwhisperer/hardware/naeusb/naeusb.py in process_rx(self, inp)
150 if resp == self.ERROR:
–> 151 raise payload
152
USBError: [Errno None] None
During handling of the above exception, another exception occurred:
Warning Traceback (most recent call last)
in
** 214 target = cw.target(scope)**
** 215 **
–> 216 setup()
** 217 rejection_builder()**
in setup()
** 49 **
** 50 prog = cw.programmers.STM32FProgrammer**
—> 51 scope = cw.scope()
** 52 **
** 53 time.sleep(0.05)**
~/chipwhisperer/software/chipwhisperer/init.py in scope(scope_type, sn)
209 scope_type = get_cw_type(sn)
210 scope = scope_type()
–> 211 scope.con(sn)
212 return scope
213
~/chipwhisperer/software/chipwhisperer/capture/scopes/base.py in con(self, sn)
56
57 def con(self, sn=None):
—> 58 if self._con(sn):
59 self.connectStatus = True
60
~/chipwhisperer/software/chipwhisperer/capture/scopes/OpenADC.py in _con(self, sn)
201 def _con(self, sn=None):
202 if self.scopetype is not None:
–> 203 self.scopetype.con(sn)
204
205 self.qtadc.sc.usbcon = self.scopetype.ser._usbdev
~/chipwhisperer/software/chipwhisperer/capture/scopes/openadc_interface/naeusbchip.py in con(self, sn)
87 found_id = self.dev.con(idProduct=nae_products, serial_number=sn)
88 except (IOError, ValueError):
—> 89 raise Warning(‘Could not connect to “%s”. It may have been disconnected, is in an error state, or is being used by another tool.’ % self.getName())
90
91 if found_id != self.last_id:
Warning: Could not connect to “NewAE USB (CWLite/CW1200)”. It may have been disconnected, is in an error state, or is being used by another tool.
Error on the same exact line, despite the modifications.
“Regular” VCC Glitch tutorial still connects and works (with the Setup_Generic.ipynb script).
Above you said you were running it in Linux, what distro? I’m using Windows with the Linux subsystem and I’m not getting that error so there must be a difference in the drivers. I think your error is still valid though. Provided this is the only notebook running I think this fix should work for you. Basically I just removed all of the try stuff so it’s not expecting the scope to be connected to anything.
from enum import Enum
from tqdm import tnrange
%matplotlib inline
import matplotlib
import matplotlib.pyplot as plt
from collections import namedtuple
import time
import chipwhisperer as cw
import csv
import re
from datetime import datetime
import time
if "STM" in PLATFORM or PLATFORM == "CWLITEARM" or PLATFORM == "CWNANO":
prog = cw.programmers.STM32FProgrammer
elif PLATFORM == "CW303" or PLATFORM == "CWLITEXMEGA":
prog = cw.programmers.XMEGAProgrammer
else:
prog = None
SCOPETYPE = 'OPENADC'
PLATFORM = 'CWLITEARM'
sample_size = 5
def reset_target(scope):
time.sleep(0.05)
scope.default_setup()
scope.glitch.output = "glitch_only"
scope.glitch.clk_src = "clkgen"
scope.glitch.repeat = 9
scope.io.glitch_hp = True
scope.io.glitch_lp = False
if PLATFORM == "CW303" or PLATFORM == "CWLITEXMEGA":
scope.io.pdic = 'low'
time.sleep(0.05)
scope.io.pdic = 'high_z' #XMEGA doesn't like pdic driven high
time.sleep(0.05)
else:
scope.io.nrst = 'low'
time.sleep(0.05)
scope.io.nrst = 'high'
time.sleep(0.05)
def setup():
fw_path = "../hardware/victims/firmware/glitch-simple/glitchsimple-{}.hex".format(PLATFORM)
prog = cw.programmers.STM32FProgrammer
time.sleep(0.05)
scope.default_setup()
reset_target(scope)
print(fw_path)
cw.program_target(scope, prog, fw_path)
def rejection_builder():
Range = namedtuple('Range', ['min', 'max', 'step'])
step_size = (1/512)*100
#step_size = 1
min_value = -49
max_value = min_value*-1
width_range = Range(27, 28, step_size)
offset_range = Range(-20, -19, step_size)
loop_ext_offset = 1000
scope.glitch.ext_offset = loop_ext_offset
loop_ext_max = 1001
dataReset = [[],[]]
dataSuccess = [[],[]]
dataExpected = [[],[]]
result = Results.Expected
print("Starting loop: ")
#starting points
loop_offset = offset_range.min
loop_width = width_range.min
counter = 0
timestr = time.strftime("%Y-%m-%d__%H%M%S")
csv_file_name = 'rejection_builder_log' + timestr + ".csv"
f = open(csv_file_name,'w')
f.write("Time[ms],EXT_Offset, Offset, Width, Result, Raw Line \n")
starting_time = datetime.utcnow()
while loop_ext_offset < loop_ext_max:
loop_offset = offset_range.min
while loop_offset < offset_range.max:
loop_width = width_range.min
while loop_width < width_range.max:
date_time_delta = (datetime.utcnow() - starting_time)
seconds_elapsed = str(date_time_delta.total_seconds())
scope.glitch.width = loop_width
scope.glitch.ext_offset = loop_ext_offset
scope.glitch.offset = loop_offset
counter += 1
loop_width += width_range.step
try:
result, line = test_for_success(20)
except:
setup()
if result == Results.Success:
dataSuccess[0].append(loop_offset)
dataSuccess[1].append(loop_width)
print("Loop width: {}, Loop offset: {} Loop ext_offset: {} Result: {} Raw Line: {}" .format(loop_width, loop_offset, loop_ext_offset, result, line))
print("success")
elif result == Results.Expected:
dataExpected[0].append(loop_offset)
dataExpected[1].append(loop_width)
elif result == Results.Reset:
dataReset[0].append(loop_offset)
dataReset[1].append(loop_width)
line_list = list(map(str.strip,line))
line = ''.join(line_list)
result_string = str(result).strip("Result.")
f.write("{},{},{},{},{},{}\n".format(seconds_elapsed, loop_ext_max, loop_offset, loop_width, result_string, line))
print("Loop width: {}, Loop offset: {} Loop ext_offset: {} Result: {}" .format(loop_width, loop_offset, loop_ext_offset, result))
loop_offset += offset_range.step
loop_ext_offset += 1
f.close()
plt.scatter(dataReset[0], dataReset[1], marker='o')
plt.scatter(dataSuccess[0], dataSuccess[1], marker='x')
plt.scatter(dataExpected[0], dataExpected[1], marker='v')
plt.show()
class Results(Enum):
Reset = 0
Expected = 1
Success = 2
# Looks for a gltiched output
# If a success is detected it will break regardless of attempts left
# in order to reduce to a single data point of parameters
def test_for_success(attempts):
reset_target(scope)
target.flush()
scope.arm()
if SCOPETYPE == "OPENADC":
scope.glitch.trigger_src = "ext_continuous"
result = Results.Expected
line = ""
for j in range(attempts):
line = ""
while "\n" not in line:
time.sleep(0.1)
line += target.read()
lines = line.split("\n")
if len(lines) > 1:
line = lines[-1]
else:
line = ""
while "\n" not in line:
time.sleep(0.1)
line += target.read()
if "hello" in line:
result = Results.Reset
nums = line.split(" ")
try:
if (int(nums[0]) != 40000 or int(nums[1]) != 200 or int(nums[2]) != 200 ) and nums[0] != '':
result = Results.Success
break
except ValueError as e:
if(result != Results.Success):
continue
else:
break
if SCOPETYPE == "OPENADC":
scope.glitch.trigger_src = "ext_single"
return result, line
scope = cw.scope()
target = cw.target(scope)
setup()
rejection_builder()Kali Linux 2019.3
I somehow doubt that the try stuff would be the issue since the Setup_Generic.ipynb script works with other tutorials, and it does include a try/except group right on the first block.
In fact, I tried to compare both scripts to figure out what could be different, and I can’t find anything that strikes me. Especially since running this script fails, and then running the original tutorial right away (after kernel reset of course) works.
I will try this new version again tonight. I might also try it in the Windows VM on the same computer (it’s a dual boot) to confirm whether the issue is related to this.
Good news: The script works!
Bad news: No successful glitch again
I reallly don’t know… Would it be possible that, by some bad luck, I would have a jumper/switch on the CW308 that would not be set the right way?
I mean, the fact that I have not even got a reset baffles me…
@aross By the way, I managed to get the CWLite to work again. For some reason, in one of the USB ports of my laptop, I get the error message pasted here:
But once connected into another USB port, it worked (!!!)
Anyway. Point is that I tried running the same scripts with the CWLite, and the results are not different.
So that’s good news in that I assume that the issue is not with the CW1200. And that’s another arrow pointing towards the CW308 and the target. Or maybe the timing offset?
Or something else, I’m lacking ideas. Would still like to make sure that everything works fine before I try my luck onto another target. I’d prefer not to have doubts about the equipment/setup before going on to try something new…
I’ll get my pro back ASAP and compare some screen plots with you to rule out some hardware.
Glad to see the CWLITE is working! The fact you’re not getting any resets seems really weird. However, the CWLITE not working at all is strange. Does it have the XMEGA victim on it or the STM32F3?
STM32F3 on the CW308. Anyway I guess that trying to program the XMega with the STM32 firmware would not work?
But yeah, it is the STM32F3. I wish it was that easy 
The CWLite is the 2-part version with the XMega. I simply connected it to the CW308.
I’m beginning to wonder if wire attenuation is having some sort of effect here. My script was successfully ran on a CWLITE single piece (with STM32F3) right on it, but I’ve been struggling to get it to work on the CW308.
Just for consistency, how long is your VOUT to GLITCH connector cable?