Re: [Paparazzi-devel] USB bootloader

[Dirk-Willem van Gulik]

On 28 jun 2008, at 08:06, Scott Morken wrote:

> The reason I want  to do this is because my application code  
> starting at 0x4000 also has USB functionality, and currently the  
> only way to get it running is to unplug the device, change the  
> bootload/application jumper and plug it back in.  I was hoping to  
> make an application where I can jump back to the bootloader for  
> program updates, and then after the update the bootloader jumps to  
> application and the application's USB stack initializes properly.
>
> Any tips?

You should be able to have the device (not the host) ask for an  
(re)enumeration. I think that is possible without any further  
hardware. Basically that makes it drop off the bus for a short amount  
of time.

Dw