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USB Pipe Error during glitching
I ran into the following USB error while trying to find glitch settings with a (pretty standard setup) GlitchController
USBErrorPipe Traceback (most recent call last)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:572, in NAEUSB_Backend._cmd_ctrl_send_data(self, pload, cmd)
571 try:
--> 572 self.sendCtrl(cmd, data=pload)
573 except usb1.USBErrorPipe:
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:526, in NAEUSB_Backend.sendCtrl(self, cmd, value, data)
525 naeusb_logger.error("The naeusb fw ctrl buffer is 128 bytes, but len(data) > 128. If you get a pipe error, this is why.")
--> 526 self.handle.controlWrite(0x41, cmd, value, 0, data, timeout=self._timeout)
File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:1330, in USBDeviceHandle.controlWrite(self, request_type, request, value, index, data, timeout)
1329 data, _ = create_initialised_buffer(data)
-> 1330 return self._controlTransfer(request_type, request, value, index, data,
1331 sizeof(data), timeout)
File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:1307, in USBDeviceHandle._controlTransfer(self, request_type, request, value, index, data, length, timeout)
1303 result = libusb1.libusb_control_transfer(
1304 self.__handle, request_type, request, value, index, data, length,
1305 timeout,
1306 )
-> 1307 mayRaiseUSBError(result)
1308 return result
File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:127, in mayRaiseUSBError(value, __raiseUSBError)
126 if value < 0:
--> 127 __raiseUSBError(value)
128 return value
File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:119, in raiseUSBError(value, __STATUS_TO_EXCEPTION_DICT, __USBError)
113 def raiseUSBError(
114 value,
115 # Avoid globals lookup on call to work during interpreter shutdown.
116 __STATUS_TO_EXCEPTION_DICT=STATUS_TO_EXCEPTION_DICT,
117 __USBError=USBError,
118 ): # pylint: disable=dangerous-default-value
--> 119 raise __STATUS_TO_EXCEPTION_DICT.get(value, __USBError)(value)
USBErrorPipe: LIBUSB_ERROR_PIPE [-9]
During handling of the above exception, another exception occurred:
USBErrorPipe Traceback (most recent call last)
Cell In[23], line 28
26 broken = False
27 for glitch_setting in gc.glitch_values():
---> 28 reset_target()
29 scope.glitch.offset = glitch_setting[1]
30 scope.glitch.width = glitch_setting[0]
Cell In[4], line 5, in reset_target()
3 scope.io.nrst = False
4 time.sleep(0.05)
----> 5 scope.io.nrst = True
6 time.sleep(0.05)
7 target.flush()
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\common\utils\util.py:397, in DisableNewAttr.__setattr__(self, name, value)
396 def __setattr__(self, name, value):
--> 397 if hasattr(self, '_new_attributes_disabled') and self._new_attributes_disabled and not hasattr(self, name): # would this create a new attribute?
398 #raise AttributeError("Attempt to set unknown attribute in %s"%self.__class__, name)
399 other_logger.error("Setting unknown attribute {} in {}".format(name, self.__class__))
400 if hasattr(self, '_new_attributes_disabled_strict') and self._new_attributes_disabled_strict and not hasattr(self, name):
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes\cwhardware\ChipWhispererExtra.py:536, in GPIOSettings.nrst(self)
531 @property
532 def nrst(self):
533 """The state of the NRST pin.
534
535 See pdic for more information."""
--> 536 return self._getGpio(100)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes\cwhardware\ChipWhispererExtra.py:544, in GPIOSettings._getGpio(self, pinnum)
542 def _getGpio(self, pinnum):
543 """GPIO state getter for GPIO settings on 1-4 and for special pins"""
--> 544 state = self.cwe.getGPIOState(pinnum)
545 if state is None:
546 return "high_z"
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes\cwhardware\ChipWhispererExtra.py:1381, in CWExtraSettings.getGPIOState(self, IONumber)
1380 def getGPIOState(self, IONumber):
-> 1381 data = self.oa.sendMessage(CODE_READ, ADDR_IOROUTE, Validate=False, maxResp=8)
1383 #Catch special modes
1384 if IONumber >= 100:
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes\_OpenADCInterface.py:294, in OpenADCInterface.sendMessage(self, mode, address, payload, Validate, maxResp, readMask)
289 """Top level swiss-army knife method for sending a message. Kept for back-compat
290
291 TODO: Transition API calls to use simplified API and remove this function...
292 """
293 if mode != CODE_WRITE:
--> 294 return self.msg_read(address, maxResp)
295 self.msg_write(address, payload)
296 if Validate:
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\capture\scopes\_OpenADCInterface.py:231, in OpenADCInterface.msg_read(self, address, max_resp)
228 scope_logger.warning("The error trace below will show you what led to this:")
229 raise ValueError
--> 231 data = self.serial.cmdReadMem(address, max_resp)
232 else:
233 self._send_msg_hdr(CODE_READ, address, 0)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:864, in NAEUSB.cmdReadMem(self, addr, dlen)
858 def cmdReadMem(self, addr : int, dlen : int) -> bytearray:
859 """
860 Send command to read over external memory interface from FPGA. Automatically
861 decides to use control-transfer or bulk-endpoint transfer based on data length.
862 """
--> 864 return self.usbserializer.cmdReadMem(addr, dlen)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:610, in NAEUSB_Backend.cmdReadMem(self, addr, dlen)
608 dlen = int(dlen)
609 if dlen < NAEUSB_CTRL_IO_THRESHOLD:
--> 610 data = self._cmd_readmem_ctrl(addr, dlen)
611 else:
612 data = self._cmd_readmem_bulk(addr, dlen)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:591, in NAEUSB_Backend._cmd_readmem_ctrl(self, addr, dlen)
585 def _cmd_readmem_ctrl(self, addr : int, dlen : int):
586 """Reads data from the external memory interface over the control-transfer endpoint.
587
588 Returns:
589 The received data.
590 """
--> 591 self._cmd_ctrl_send_header(addr, dlen, self.CMD_READMEM_CTRL);
592 return self.readCtrl(self.CMD_READMEM_CTRL, dlen=dlen)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:583, in NAEUSB_Backend._cmd_ctrl_send_header(self, addr, dlen, cmd)
581 # TODO: Alloc header class member? Won't hafta alloc mem every read and writectrl call...
582 pload = make_len_addr(dlen, addr)
--> 583 self._cmd_ctrl_send_data(pload, cmd)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:575, in NAEUSB_Backend._cmd_ctrl_send_data(self, pload, cmd)
573 except usb1.USBErrorPipe:
574 naeusb_logger.info("Attempting pipe error fix - typically safe to ignore")
--> 575 self.sendCtrl(0x22, 0x11)
576 self.sendCtrl(cmd, data=pload)
File c:\users\user\chipwhisperer5_64\cw\home\portable\chipwhisperer\software\chipwhisperer\hardware\naeusb\naeusb.py:526, in NAEUSB_Backend.sendCtrl(self, cmd, value, data)
524 if len(data) > NAEUSB_CTRL_IO_MAX:
525 naeusb_logger.error("The naeusb fw ctrl buffer is 128 bytes, but len(data) > 128. If you get a pipe error, this is why.")
--> 526 self.handle.controlWrite(0x41, cmd, value, 0, data, timeout=self._timeout)
File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:1330, in USBDeviceHandle.controlWrite(self, request_type, request, value, index, data, timeout)
1328 # pylint: enable=undefined-variable
1329 data, _ = create_initialised_buffer(data)
-> 1330 return self._controlTransfer(request_type, request, value, index, data,
1331 sizeof(data), timeout)
File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:1307, in USBDeviceHandle._controlTransfer(self, request_type, request, value, index, data, length, timeout)
1301 def _controlTransfer(
1302 self, request_type, request, value, index, data, length, timeout):
1303 result = libusb1.libusb_control_transfer(
1304 self.__handle, request_type, request, value, index, data, length,
1305 timeout,
1306 )
-> 1307 mayRaiseUSBError(result)
1308 return result
File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:127, in mayRaiseUSBError(value, __raiseUSBError)
121 def mayRaiseUSBError(
122 value,
123 # Avoid globals lookup on call to work during interpreter shutdown.
124 __raiseUSBError=raiseUSBError,
125 ):
126 if value < 0:
--> 127 __raiseUSBError(value)
128 return value
`File ~\CHIPWH~1\cw\home\portable\WPy64-31080\python-3.10.8.amd64\lib\site-packages\usb1\__init__.py:119, in raiseUSBError(value, __STATUS_TO_EXCEPTION_DICT, __USBError)
113 def raiseUSBError(
114 value,
115 # Avoid globals lookup on call to work during interpreter shutdown.
116 __STATUS_TO_EXCEPTION_DICT=STATUS_TO_EXCEPTION_DICT,
117 __USBError=USBError,
118 ): # pylint: disable=dangerous-default-value
--> 119 raise __STATUS_TO_EXCEPTION_DICT.get(value, __USBError)(value)
USBErrorPipe: LIBUSB_ERROR_PIPE [-9]
Loop that caused the crash:
for glitch_settings in gc.glitch_values():
scope.glitch.width = glitch_settings[0]
scope.glitch.offset = glitch_settings[1]
scope.glitch.ext_offset = glitch_settings[2]
if scope.adc.state:
gc.add("reset")
reboot_flush()
scope.arm()
target.simpleserial_write('p', bytearray([0, 0, 0, 0, 0]))
ret = scope.capture()
if ret:
gc.add("reset")
reboot_flush()
else:
val = target.simpleserial_read_witherrors('r', 1, glitch_timeout=10, timeout=50)
if val['valid'] is False:
gc.add("reset")
else:
if val['payload'][0] == 1:
gc.add("success")
else:
gc.add("normal")
(Apologies for the bad codeblock formatting, Ill fix that laterTM)
I suspect this may be related to your other issue? Prior to what causes the error, what does scope.sc._fast_fifo_read_active return? If it's True, then it's tied to the other issue.
