[sdiy] Simple MIDI Seq for firmware updates

[MTG]

> You only need a handshake if you want to handle an error.
> Once you have written the bootloader and tested how long it typically 
> takes
> to write one page, you can send a page per sysex block with a delay 
> between
> each block long enough to ensure the page is written.
> MIDI-Ox has a configurable delay after each F7

Well that's a fantastic bit of information I did not know about.

Thanks!
GB