Tag
usb
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USB Triggering & Hacking
This blog post covers several topics that I should have made independent posts about… but anyway. Here we are. It’s September and I should have done…
ESC SV 2015 - USSSSSB: Talking USB From Python
At ESC 2015 SV I gave a talk on using USB From Python, see the talk description here. This blog post is serving as a placeholder to allow me to…
USB Inrush Testing
The USB spec has limits on the ‘inrush current’, which is designed to prevent you from having 2000uF of capacitance that must be suddenly charged…
Making a USB-HID Keyboard Encoder Board for PicoScope
Ever wanted to control something from a knobby-looking USB peripheral? In this example I wanted to control the PicoScope software from a bunch of…
Quit wasting time debugging USB: Using TotalPhase Triggers
This blog post might seem commercial… but I have no connection to TotalPhase. I’ve used their Beagle 480 USB analyser for some time, and before that…
Split Ground Plane: Example of failing high-speed signals
I’ve got a SASEBO-W board, which has a FPGA & a FT2232H for high-speed USB comms. I was seeing errors on the high-speed USB device, and couldn’t…
Making AT90USBKEY Run on 5V (Easy Way)
I needed to use my AT90USBKEY at higher than 3.3V for ADC input purposes. It’s not documented in the manual, but the schematic shows they anticipated…