Kate Temkin (@ktemkin) explained USB: how to get started, general orientation, useful tools, and when you’d use it in embedded systems.
Kate’s website is ktemkin.com. She works at Great Scott Gadgets.
References for USB:
USB Complete by Jan Axelson
USB Embedded Hosts: The Developer’s Guide by Jan Axelson
USB Stacks we talked about:
TinyUSB from Adafruit
Cortex libopencm3
For the host side: libusb
Open Source VIDs are available from Openmoko and Pid.codes
Kate recently gave a talk about making USB accessible. Part of the talk was about Luna, an FPGA based USB multitool.
Some open source FPGA tools: