The Desk of Ladyada - 5.25" Floppy Drive hacking! episode artwork

EPISODE · Jan 16, 2022 · 30 MIN

The Desk of Ladyada - 5.25" Floppy Drive hacking!

from Adafruit Industries · host Adafruit Industries

This weekend we dove headfirst into getting fluxengine and our 5.25" disk drive working with the floppy featherwing. good news is that we were able to add support to Adafruit_Floppy and with a little refactoring, add 360K disk MFM decoding. we thought we didn't have any DOS floppies but we did find one in a pile (mouse driver). we then used fluxengine to read the data off to verify before implementing mass storage support. once we got that working we spent a few hours on C64 disk reading, these disks are kinda odd and not formatted like 'normal' diskettes - there is a different encoding scheme and variable sectors per track! we also designed a feather esp32 v2 and a smol handheld game BFF for QT Py. The Great Search - small 'cap-less' headphone driver https://www.digikey.com/short/0b3v2192 For our tiny handheld gamer board, we want to have a headphone driver that does not require a lot of board space. even if the chip is small, most simple amps require output blocking caps to avoid DC bias on the speakers. but, now-a-days you can get 'cap-less' drivers, that generate a faux-ground. this makes for a very tiny board. let's find a chip that is small, but not BGA/CSP, that will fit nicely into our design #deskofladyada #thegreatsearch #adafruit Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

This weekend we dove headfirst into getting fluxengine and our 5.25" disk drive working with the floppy featherwing. good news is that we were able to add support to Adafruit_Floppy and with a little refactoring, add 360K disk MFM decoding. we thought we didn't have any DOS floppies but we did find one in a pile (mouse driver). we then used fluxengine to read the data off to verify before implementing mass storage support. once we got that working we spent a few hours on C64 disk reading, these disks are kinda odd and not formatted like 'normal' diskettes - there is a different encoding scheme and variable sectors per track! we also designed a feather esp32 v2 and a smol handheld game BFF for QT Py. The Great Search - small 'cap-less' headphone driver https://www.digikey.com/short/0b3v2192 For our tiny handheld gamer board, we want to have a headphone driver that does not require a lot of board space. even if the chip is small, most simple amps require output blocking caps to avoid DC bias on the speakers. but, now-a-days you can get 'cap-less' drivers, that generate a faux-ground. this makes for a very tiny board. let's find a chip that is small, but not BGA/CSP, that will fit nicely into our design #deskofladyada #thegreatsearch #adafruit Visit the Adafruit shop online - http://www.adafruit.com ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Adafruit on Instagram: https://www.instagram.com/adafruit Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------

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The Desk of Ladyada - 5.25" Floppy Drive hacking!

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API Intersection Stoplight Building a successful API requires more than just coding. It starts with collaborative design, focuses on creating a great developer experience, and ends with getting your company on board, maintaining consistency, and maximizing your API’s profitability.In the API Intersection, you’ll learn from experienced API practitioners who transformed their organizations, and get tangible advice to build quality APIs with collaborative API-first design.Jason Harmon brings over a decade of industry-recognized REST API experience to discuss topics around API design, governance, identity/auth versioning, and more.They’ll answer listener questions, and discuss best practices on API design (definition, modeling, grammar), Governance (multi-team design, reviewing new API’s), Platform Transformation (culture, internal education, versioning) and more.They’ll also chat with experienced API practitioners from a wide array of industries to draw out practical takeaways and insights you can use.H TV Podcast Industries Chris Jones, Derek O'Neill and John Harrison. TV Podcast Industries TV Podcast Industries is a podcast that provides discussions and reviews of various TV shows, including recent popular series like Alien Earth, The Sandman, The Last of Us, The Boys, and Daredevil Born Again. They also cover shows such as Ironheart, Star Trek: Picard, The Rings of Power, and many more, spanning both Marvel and DC universes, as well as other genres. Heart to Heart Podcast One on One / Next Level Studios In the Heart to Heart Podcast, we talk to some of our favorite & most interesting people in the entertainment industry so you can feel empowered and learn that even in the most challenging of industries, where there’s a will there’s a way.Whether you’re an actor, a writer, a casting director, a talent rep, or just someone interested in the behind the scene happenings of the entertainment industry, this podcast will have something for you. NOW, this isn’t just another How To podcast for actors. Plenty of those shows already exist. In Heart to Heart, every guest will share stories inspired by their sometimes winding path to success on their own terms. Revisionist History Pushkin Industries Revisionist History is Malcolm Gladwell's journey through the overlooked and the misunderstood. Every episode re-examines something from the past—an event, a person, an idea, even a song—and asks whether we got it right the first time. From Pushkin Industries. Because sometimes the past deserves a second chance.To get early access to ad-free episodes and extra content, subscribe to Pushkin+ in Apple Podcasts or at pushkin.fm/plus.iHeartMedia is the exclusive podcast partner of Pushkin Industries.

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This episode was published on January 16, 2022.

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This weekend we dove headfirst into getting fluxengine and our 5.25" disk drive working with the floppy featherwing. good news is that we were able to add support to Adafruit_Floppy and with a little refactoring, add 360K disk MFM decoding. we...

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