OverflowError while trying to setup chupwhisperer lite xmega
retro-c24 opened this issue · 5 comments
import chipwhisperer as cw
scope = cw.scope()
OverflowError Traceback (most recent call last)
C:\Users\SOURAP\AppData\Local\Temp\ipykernel_17636\1654912759.py in
1 import chipwhisperer as cw
----> 2 scope = cw.scope()
d:\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer_init_.py in scope(scope_type, name, sn, idProduct, bitstream, force, prog_speed, **kwargs)
335 rtn : scopes.ScopeTypes = scope_type()
336 try:
--> 337 rtn.con(**kwargs)
338 except IOError:
339 scope_logger.error("ChipWhisperer error state detected. Resetting and retrying connection...")
d:\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes\OpenADC.py in con(self, sn, idProduct, bitstream, force, prog_speed, **kwargs)
516 if cwtype == "cwhusky":
517 self.sc._is_husky = True
--> 518 self.sc._setReset(True)
519 self.sc._setReset(False)
520
d:\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes_OpenADCInterface.py in _setReset(self, value)
361 #Hack to adjust the hwMaxSamples since the number should be smaller than what is being returned
362 self.hwMaxSamples = self.numSamples() - 45
--> 363 self.setNumSamples(self.hwMaxSamples)
364 else:
365 self.setSettings(self.settings() & ~SETTINGS_RESET)
d:\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes_OpenADCInterface.py in setNumSamples(self, samples)
380
381 def setNumSamples(self, samples):
--> 382 self.sendMessage(CODE_WRITE, ADDR_SAMPLES, list(int.to_bytes(samples, length=4, byteorder='little')))
383 self.updateStreamBuffer(samples)
384
OverflowError: can't convert negative int to unsigned
Hi,
Do you get any other error messages? self.numSamples() is probably returning something that doesn't make sense (like 0), which might be the result of the FPGA not being programmed correctly.
Also, what ChipWhisperer version/commit and firmware version are you on?
Is this something that happens consistently and has your ChipWhisperer worked before?
Alex
Umm i m using chipwhisperer lite with xmega target board and using the latest commit 5.7.0 ,
This board was bought like an year before and i haven't seen it work i don't think anyone even flashed it till now.
and there are no other errors
Can you try running the following before connecting and posting the resulting output from trying to connect?
cw.naeusb_logger.setLevel(cw.logging.DEBUG)
cw.scope_logger.setLevel(cw.logging.DEBUG)Hi, any update on this?
Closing, as there's been no update on this in a while.