Category Archives: USB

Building an SPI Port

Posted on May 10, 2016 by sjdavies2

It’s been some time since my last post. Last week I got inspired and revisited my yad2xx project over on Source Forge. Managed to get an SPI interface working as well as a bunch of cleanup work. The Serial Peripheral … Continue reading →

Posted in FTDI, OS X, USB | Leave a comment

FTDI and OS X (Yosemite)

Posted on September 18, 2015 by sjdavies2

Revised 18 May 2016 This is a reposting of an earlier article under an open source project of mine. I’ve added it here as it is applicable to a more general audience than the yad2xx user. It documents configuration issues … Continue reading →

Posted in FTDI, OS X, USB | 11 Comments

LUFA – First Steps Part 2

Posted on September 17, 2015 by sjdavies2

Device Descriptors Now that the overall project configuration has been configured we need to supply information about the device itself. Descriptors are data structures a USB device passes to the host computer during initialisation and are the key to ‘plug … Continue reading →

Posted in AVR, Microcontroller, USB | 5 Comments

LUFA – First Steps Part 1

Posted on September 3, 2015 by sjdavies2

Introduction This week I used the LUFA framework to implement a simple USB-Serial device. USB isn’t at the trivial end of the embedded system development spectrum and LUFA goes a long way to ease the pain but getting started can … Continue reading →

Posted in AVR, Microcontroller, USB | Leave a comment