Timeout flashing via daisy bootloader from the web interface

gregsbrain · January 21, 2024, 6:57pm

I am trying to use the web interface to flash images via the bootloader. With the connect window open, after pressing reset the daisy bootloader shows up very briefly but times out almost immediately, too fast for me to connect. Funny thing is it worked the first time I tried it, waited for the download, but hasn’t worked since. I am running the current bootloader image from the web interface.

My only option right now seems to use dfu-util on the command line with the --wait option.

Takumi_Ogata · January 25, 2024, 7:20pm

Hi Greg!

You can extend the grace period indefinitely by pressing the BOOT button.

gregsbrain · January 27, 2024, 4:49pm

Thanks Takumi. Is there a way to launch the bootloader this way programmatically?

Takumi_Ogata · January 30, 2024, 9:59pm

Hello Greg, thank you for the wait.

Yes you can!
If you use the BootloaderMode::DAISY_INFINITE_TIMEOUT mode when calling System::ResetToBootloader , it’ll just hang out in the bootloader until something happens.

github.com

electro-smith/libDaisy/blob/17ee39bac370b0948949be94fa7d0fcbe890ffd7/src/sys/system.h#L163


      
           * this will return to it
           * \param DAISY_NO_TIMEOUT if the Daisy bootloader
           * is used, this will return to it and skip the
           * timeout window
          */
          enum BootloaderMode
          {
              STM = 0,
              DAISY,
              DAISY_SKIP_TIMEOUT,
              DAISY_INFINITE_TIMEOUT
          };
          
          /** Triggers a reset of the seed and starts in bootloader
           ** mode to allow firmware update. */
          static void ResetToBootloader(BootloaderMode mode = BootloaderMode::STM);
          
          /** Initializes the backup SRAM */
          static void InitBackupSram();
          
          /** Checks Daisy Bootloader version, if present. */