Uploaded June 2023 | Updated September 2026, 2 weeks ago
In this episode, we're finally building the core firmware update mechanism in the bootloader! This involves taking all the elements we've been working on until now - timers, state machines, the packet protocol on top of uart, etc - and putting them together into a bootloader firmware that is able to communicate with a host PC and receive a firmware update.
In the next video, we'll build the PC side application, and complete this major milestone, before moving on to implementing a cryptographic code signing mechanism, to ensure only authorised code can be loaded onto the device.
=[ 🔗 Links 🔗 ]=
🎥 Series Playlist: youtube.com/playlist?list=PLP29wDx6QmW7HaCrRydOnxcy8QmW0SNdQ
🗣 Discord: discord.gg/FPWaVgk
⭐️ Patreon: patreon.com/lowleveljavascript
💻 Github Repo: github.com/lowbyteproductions/bare-metal-series
In this episode, we're finally building the core firmware update mechanism in the bootloader! This involves taking all the elements we've been working on until now - timers, state machines, the packet protocol on top of uart, etc - and putting them together into a bootloader firmware that is able to communicate with a host PC and receive a firmware update.
In the next video, we'll build the PC side application, and complete this major milestone, before moving on to implementing a cryptographic code signing mechanism, to ensure only authorised code can be loaded onto the device.
=[ 🔗 Links 🔗 ]=
🎥 Series Playlist: youtube.com/playlist?list=PLP29wDx6QmW7HaCrRydOnxcy8QmW0SNdQ
🗣 Discord: discord.gg/FPWaVgk
⭐️ Patreon: patreon.com/lowleveljavascript
💻 Github Repo: github.com/lowbyteproductions/bare-metal-series
![[stream] More bus piracy, logic analysis, and e-SPI-onage](https://i.ytimg.com/vi/_wGYhp6RxQ0/mqdefault.jpg "[stream] More bus piracy, logic analysis, and e-SPI-onage
=[ 🔗 Links 🔗 ]=
🎥 Stream Playlist: https://www.youtube.com/playlist?list=PLP29wDx6QmW7jg0LgRJYAmHLM6G_6NDw6
💌 Updates to your inbox: https://tinyletter.com/lowleveljavascript
🗣 Discord: https://discord.gg/FPWaVgk
⭐️ Patreon: https://www.patreon.com/lowleveljavascript
💻 Github Repo:")
![Operations! [The Bits And Bytes Of Binary ep.2]](https://i.ytimg.com/vi/a23wQcaBfpc/mqdefault.jpg "Operations! [The Bits And Bytes Of Binary ep.2]
This mini series is all about binary. Over the course of the series, well be building a library that gives us precise control of every bit and operation.
Youll learn how the logical and arithmetic operations work, how different kinds of numbers are encoded, how to set, clear and toggle bits, and how we can create representations of structured binary data.
1. Bits
2. Operations
3. Unsigned Numbers
4. Addition
5. Zero Extension
6. Twos complement
7. Overflow Addition and Sign Extension
8. Shifting
9. Setting, Clearing, and Toggling Bits
10. Endianness
11. Structures
=[ 🔗 Links 🔗 ]=
💌 Updates to your inbox: https://tinyletter.com/lowleveljavascript
⭐️ Patreon: https://www.patreon.com/lowleveljavascript
🎥 Playlist: https://www.youtube.com/watch?v=pOM86M1pGb4&list=PLP29wDx6QmW47oPsNBFNEi_SYTOLDJXqQ
💻 Github Repo: https://github.com/LowLevelJavaScript/The-Bits-And-Bytes-Of-Binary
=[ 🎶 Music 🎶 ]=
Bad Snacks - Take It Easy")
![[stream] Driver For SPI Flash + Bus Pirate in TypeScript](https://i.ytimg.com/vi/e7_lAcVndNo/mqdefault.jpg "[stream] Driver For SPI Flash + Bus Pirate in TypeScript
=[ 🔗 Links 🔗 ]=
💌 Updates to your inbox: https://tinyletter.com/lowleveljavascript
🗣 Discord: https://discord.gg/FPWaVgk
⭐️ Patreon: https://www.patreon.com/lowleveljavascript
💻 Github Repo:")
