Lup Yuen Lee 李立源 @lupyuen@social.cleverlibre.org

#BL602 Firmware Flasher works like a State Machine ... Each Flashing State triggers a Flashing Command ... Let's trace the Flashing States

https://github.com/bouffalolab/BLOpenFlasher/blob/main/utils/util_program.go#L195-L245

"#Linux Fu: Bash Strings"

https://hackaday.com/2022/01/26/linux-fu-bash-strings/

You can't tell which way the train went by looking at the tracks ... So let's study the #BL602 Firmware Flasher ... And see what Flashing Commands it sends to the EFlash Loader

https://github.com/bouffalolab/BLOpenFlasher

So cute that the #BL602 Flashing Commands are all ASCII ... Perfect for UART! 👍

https://github.com/lupyuen/bl602-eflash-loader#flashing-commands

Here are the 24 Flashing Commands supported by the #BL602 EFlash Loader ... Thanks to Ghidra 🎉

https://github.com/lupyuen/bl602-eflash-loader#flashing-commands

#Ghidra reveals the 24 Flashing Commands supported by #BL602 EFlash Loader ... Very nice! 👍

https://github.com/lupyuen/bl602-eflash-loader

#Ghidra says that #BL602 EFlash Loader supports 24 Flashing Commands ... Let's decipher them 🤔

https://github.com/lupyuen/bl602-eflash-loader

Call Graph for #BL602 EFlash Loader ... Generated by #Ghidra

https://github.com/lupyuen/bl602-eflash-loader

Stock #PineNote Impressions

https://github.com/tpwrules/nixos-pinenote/blob/main/docs/initial-impressions.md

"#Sigfox is in financial trouble"

https://www.cnx-software.com/2022/01/27/sigfox-is-in-financial-trouble/

"A Minimum Viable Computer, or Linux for $15" (Allwinner F1C100s)

https://bbenchoff.github.io/pages/LinuxDevice.html

"When do you know if your project needs to move on from bare-metal to an RTOS / Embedded Linux?"

https://www.reddit.com/r/embedded/comments/sczi6p/when_do_you_know_if_your_project_needs_to_move_on/?utm_medium=android_app&utm_source=share

#Sigfox in receivership

https://www.journaldunet.com/ebusiness/internet-mobile/1508391-sigfox-place-en-redressement-judiciaire/

#Pine64 PineTalk - "Talk about a dense 15 minutes"

https://www.pine64.org/2022/01/26/6118/

"A bug lurking for 12 years gives attackers root on every major #Linux distro" (pkexec)

https://arstechnica.com/information-technology/2022/01/a-bug-lurking-for-12-years-gives-attackers-root-on-every-major-linux-distro/

What are the Flash Commands executed by the #BL602 EFlash Loader? 🤔

https://github.com/lupyuen/bl602-eflash-loader/blob/main/eflash_loader.c#L3814-L3844

Here's the #BL602 EFlash Loader's Main Loop that executes Flashing Commands

https://github.com/lupyuen/bl602-eflash-loader/blob/main/eflash_loader.c#L4031-L4108

#BL602 EFlash Loader's Main Function is surprisingly readable ... Decompiled from ELF by Ghidra

https://github.com/lupyuen/bl602-eflash-loader/blob/main/eflash_loader.c#L2803-L2863

India eyes home-grown OS to compete with Android, iOS

https://www.computerworld.com/article/3648074/india-eyes-home-grown-os-to-compete-with-android-ios.html