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The CW520 (ChipSHOUTER) is a fully-featured Electromagnetic Fault Injection platform that can be used to discover and characterize vulnerabilities in embedded systems. ChipSHOUTER makes EMFI available to test labs, engineering development firms, educators, and embedded enthusiasts. With a flexible API and bundled practice targets the system is a platform for experimentation and education right out of the box. Paired with an X-Y table and some basic python scripting the ChipSHOUTER becomes a fully automatable EMFI platform capable of precision testing and fault characterization.


The ChipSHOUTER generates large voltages and electromagnetic fields that can be hazardous to human health and can cause nearby devices to malfunction. Carefully read the safety sections in the ChipSHOUTER manual, available on the ChipSHOUTER github before use.

Product Highlights

  • High side coil drive means the tip isn't connected directly to the high voltage capacitor bank, reducing shock risk
  • Sophisticated fault detection system helps ensure user safety and prevents damage to the device
  • Basic and pulse output patterns
  • Low latency hardware trigger allows easy interface with other devices with triggering mechanisms, such as oscilloscpes or the ChipWhisperer platform
  • Serial interface with Python API allows easy automation of glitch insertion
  • Variety of fault injection tips available


I/O Characteristics

Characteristic Specification
Serial command interface 3.3V CMOS Serial, 115200, 8N1
Protocol ASCII command prompt, Binary
Serial connection RJ12 connector with GND, TX/RX, 3.3V output and switchable pulse/arm pin.
Hardware trigger connector type SMB connector, center positive
Hardware trigger threshold 2V
Harware trigger absolute maximum ratings -0.5V to 6.5V
Hardware trigger impedance 50/1.8kΩ (switchable)
Hardware trigger level Active-high / Active-low (Switchable)
Injected waveform monitor BNC connector for mating with standard 1MΩ || 10-25pF oscilloscope input. Adjustable compenation trimmer for fine tuning match.
Voltage monitor attenuation 20x attenuation
Voltage monitor output range ±-25V into properly matched oscilloscope input

High Voltage Characteristics

Characteristic Min Typ Max Units
Programmable voltage range 150 500 V
Charge rate 30 40 V/ms
Charge energy 625 mJ
Measured voltage accuracy via digital interface ±(5%+10V)

Pulse Source Characteristics

Characteristic Min Typ Max Units
Basic pulse generator
Pulse width range 80 960 ns
Pulse width resolution 80 ns
Pulse width jitter 350 ns
Pulse dead-time (between repeats) 1 1000 ms
Pulse repitition count (per trigger event) 1 10000
Programmable pattern generator
Pulse width resolution (time-steps) 20.83 ns
Time-steps per pulse 1 5000 Time-steps
Total pulse width 0.0208 100 us
Pulse output state per time-steps 1/0
Pulse width jitter - tested pulse width of 80ns 350 ps std-dev
Hardware Input Trigger
Delay - tested high voltage of 150V to 500V 75 ns
Delay jitter - tested high voltage of 150V to 500V 150 ps std-dev
Width jitter - tested high voltage of 150V to 500V 800 ps std-dev
Width jitter - tested high voltage of 300V to 500V 220 ps std-dev

Inserted Pulse Characteristics

Characteristic Min Typ Max Units
Pulse width into 1mm injection tip 15 80 TYPICAL ns
Pulse width into 4mm injection tip 24 480 TYPICAL ns
Minimum consecutive pulse spacing - Tested with 4mm injection tip at voltage setting of 500V
2 pulses 100 ns
3 pulses 175 ns