Posts
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Confidential Computing with AMD-SEV
This document aims to provide a clear understanding of AMD-SEV technology by offering practical examples on how to set up and use various components, including BIOS, UEFI (OVMF), QEMU, and SEV tools.
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Hacking USB 2.0 With Oscilloscope
When you don’t have a USB sniffer at hand, usb capture and Wireshark do not work at the lowest level of the USB protocol, but you need to figure out why the device completes the transaction with an error, then an oscilloscope and a Python script come to the rescue.
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Alternative Approaches to RedPitaya Bode Analyser
This article explores two alternative approaches to improving the Bode Analyser, a web tool included in the default suite of RedPitaya applications.
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Errors In The Datasheet Or Exercises In Trigonometry
I came across an interesting approach to solving the problem of doubling the frequency in circuitry: use an analog multiplier. Indeed, if the incoming signal is a sine wave, then what could be simpler than multiplying the incoming signal by itself, i.e. squaring of the sine wave, so that at the output we will get a double frequency signal: