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|capture hardware = CW-Lite
|Target Device =
|Target Architecture = XMEGA/Arm
|Hardware Crypto = No
|Purchase Hardware =
This advanced tutorial will demonstrate clock glitch attacks using the ChipWhisperer system. This will introduce you to many required features of the ChipWhisperer system when it comes to glitching. This will be built on in later tutorials to generate voltage glitching attacks, or when you wish to attack other targets.
'''If you're working on an STM32F3/CW303 Arm target, it's recommended that you instead skip to [[Tutorial A3 VCC Glitch Attacks]]'''have the latest updates from the develop branch. '''Voltage Recent firmware changes made glitching is possible on Arm targets, but is far more difficult than using voltage glitching, or clock glitching on the XMEGA targetreliable.'''
== Background on Clock Glitching ==
=== Firmware Setup ===
For this example, we'll be using the <code>glitch-simple</code> firmware.
{{CollapsibleSection
|intro = ==== Building for CWLite with XMEGA Target ====
|content= Building for XMEGA}}
You should also open the file <code>glitchsimple.c</code> which is the source code. The subroutine being glitched in this example looks like this:
return 1;
}</pre>
=== Hardware Setup ===
{{CollapsibleSection
|intro = ==== CW1173 (Lite) Hardware Setup ====
|content= CWLite HW Setup}}
{{CollapsibleSection|intro ==== XMEGA Target = CW1200 (CW1173 + CW303Pro) Hardware Setup ====|content=CW1200 HW Setup}}
==== Multi-Target Board, AVR (CW301) ====
