Originally Posted by msev
The firmware that is originally on the board is not available for download right, so if I put multiwii on I wouldn't be able to go back to the stock firmware right?
Well, I asked Mr. JUERGEN_ to download the firmware off the board but he seems to be too busy to get it done. Since the "firmware update tool" is just a STMicro Flash Loader utility, any future (any?) firmware updates that come from goodluckbuy/freeflight *should* be clear hex files that you can just load as usual. Until someone with JTAG/SWD adapter downloads the current firmware off one of these boards (or find out if its possible or not incase its readout locked), consider any messing with firmware as a one-way trip much like ESC reflashing.
And yes, STM supports firmware update over serial, which is how the official download tool off goodluckbuy works.
I wouldn't bother with BMP085 until someone actually confirms the firmware even makes use of it.