Deep Dive w/Scott: Zephyr Bootloader

Join Scott as he works to polish the MCUboot bootloader for use with Zephyr based firmwares like CircuitPython. He'll answer any questions folks have too. Visit the Adafruit shop online - http://www.adafruit.com Thanks to dcd for timecodes: 0:00 Getting started 0:57 Hello everyone - circuit python (CP) on microprocessor example NRF64LM20 3:25 Join discord for chat (online and during the week) 4:12 Detour into bootloader - 8:00 Seattle happy hardware hour - first Thursday of every month 12:19 github adafruit/adabute 13:22 uf2 bootloaders - then green lake 14:32 oldinsurancemaps.net rabbit trail 15:34 uf2 created to drag/drop boot loaders 17:42 need to preserve the flash segments 19:39 original adafruit UF2 boot loader 20:12 tinyuf2 ( built on tinyusb ) support espressif 20:52 nRF52 bootloader 21:30 adding a fourth boot loader based on zephyr 22:23 LLM coding 23:32 safe mode support added "saved word" ( including unit test ) 25:45 swapping regions for software update over the air (OTA) 29:08 UF2 application that can update itself 29:50 OTA_0 and OTA_1 discussion 32:18 boot loader status indicators, and double tap 33:13 partition table example nrf54lm20dk.dtsi 39:54 ROM bootloaders 43:33 enter boot loader via double reset 45:39 boot/zephyr/main.c and CONFIG_BOOT_SERIAL_DOUBLE_TAP (double tapping reset) 47:35 related to CP reset and boot button 51:10 consider firmware for coprocessors also 52:30 thinking about pin muxing in parallel 54:00 build and reflash the bootloader 55:00 CURRENT.UF2 support for dragging off the non volatile memory, and INFO_UF2.TXT 56:40 copy the updater to the UF2 drive 52:23 next week in new office! 1:00:44 display support ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------