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Tutorial CW305-4 Voltage Glitching with Crowbars

1,058 bytes added, 19:40, 18 January 2017
Software Setup
== Software Setup ==
- Script- Bitstream (same as As in the previous tutorial, we can use the CW305 example script to get us started. Follow the instructions from [[Tutorial CW305-1)Building a Project]] to connect to the target and load the bitstream onto the FPGA.- Glitch Next, we'll set up the glitch module setup: * Make sure the clock source is Target IO- IN* Set the glitch trigger to Ext Trigger:Single-Shot* Set the output mode to Glitch onlyOnly * Take a look at the glitch width/offset, the trigger offset, and repeat - feel free to experiment with these throughout the tutorial [[File:CW305VCCGlitchModule.PNG]] Then, in CW Extra Settings, turn on one or both of the HS-GlitchOut Enable checkboxes. These are used to enable low- Same idea power and high-power MOSFETs, respectively; we found that the low-power output is powerful enough for this board, but you might see different effects with the different outputs. That should be everything. Hit Capture 1 and make sure you see a glitch. This picture was taken with a glitch width of 20%: [[File:CW305VCCTrace.PNG]] From here, you can use the Glitch Explorer to sweep the glitch settings and search for a successful glitch, as we did in [[Tutorial CW305-3Clock Glitching]]. Good luck!
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