CW1200 ChipWhisperer-Pro/Touchscreen

The touchscreen on the ChipWhisperer Pro shows various details about its status and current settings.

Screen 1: Clock

The clock screen shows the status of the CLKGEN and ADC clocks along with the frequency counter.

TODO: picture

• CLKGEN: Current frequency of CLKGEN clock in kHz
  • Source: Input to CLKGEN DCM. Could be system clock or EXTCLK
  • DCM: Lock status of CLKGEN DCM
  • Reset DCM: Reset the CLKGEN output. Useful if clock has locked at the wrong frequency
• ADC Clock: Current ADC sampling rate in kHz
  • Source: Input to ADC DCM. Could be related to CLKGEN or EXTCLK
  • DCM: Lock status of ADC DCM
  • Reset DCM: Reset the ADC clock output
• Frequency Counter: Current frequency measured by the frequency counter
  • Source: Input to frequency counter. Could be either EXTCLK or CLKGEN

Screen 2: Routing

The routing screen shows the status of the various I/O pins.

TODO: picture

• Aux Output: Status of the aux SMA connections. Could be used as trigger input/output, glitch output, and/or clock output
• IO Pins: Status of each of the IO pins on the 20 pin connector. Possible values depend on pin
• Target Power State: Status of the 3.3 V output. Can be toggled here to reset target
• Target HS IO-Out: Signal connected to high-speed output (HS2). Could be CLKGEN, glitch module, or disabled

Screen 3: Trigger

The trigger screen shows the current settings for the trigger module and the ADC capture settings.

TODO: picture

• Trigger Pins: Whether each trigger input is enabled. Active inputs are highlighted
  • Mode: Trigger combination method. Could be AND, OR, or NAND
• Trigger Source: The trigger type in use. Active trigger module is highlighted
  • State: The current output level of the trigger module
• Trigger Mode: The ADC trigger type. Active mode is highlighted
• Samples:
  • Delay: Current ADC offset. This is the number of samples to wait after trigger before recording begins
  • Pre: Number of pre-trigger samples to be saved
  • Time: Delay, but converted into a time
  • Total: Number of samples to be recorded in total
• ADC gain:
  • Mode: Amplification type. Either low or high
  • Setting: Low noise amplifier gain level

Screen 4: Glitch

The glitch screen shows the current settings for the glitch module.

TODO: picture

• Clock Src: Input to the glitch module's clock. Active clock is highlighted
  • DCM: Lock status of the glitch module's DCM
• Glitch Setup:
  • Width: Duty cycle of glitch pulse, as a fraction of one period
  • Fine: Adjustment on width
  • Offset: Distance between clock rising edge and glitch pulse rising edge, as a fraction of one period
  • Fine: Adjustment on offset
• View: Schematic of glitch clock. Shows regular clock above (blue) and glitch module output below (black)
• Trigger Src: Input for glitch module. Active source is highlighted
• Trigger Setup:
  • Trigger: Cause a manual trigger. Has no effect unless trigger source is set to Manual
  • Offset: Number of cycles to wait before starting glitch pulses
  • Repeat: Number of consecutive pulses to generate
• Output Status
  • VCC: Status of glitching MOSFETs. Shows warning sign if VCC glitching is enabled
  • Cnt: Total number of glitch pulses generated