Re-flashing Devo 7e bootloader?

What did you do that itis necessary?

I don't have a great description, but if you have a SWD debugger/programmer (STLink/V2) , you can install the bootloader by adding jumpers to the boot0 and power-override pads (the only 2-pin 0.1" pads on the board), and then using the STLink sftware to install the bin at 0x08000000

It turns out I had to do this today, so I can be pretty specific.
1st you need an stlink-v2 and a copy of the devo7e bootloader

You'll be using the 20pin header on the stlink.
on the 7e board, there is a 5-pin unpopulated header below the MCU, one pin is labeled RESET. We;ll call this pin '1'
connect pin1 (reset) on the Tx to pin 15 (NRST) on the stlink
connect pin2 (tms) on the Tx to pin 7 (TMS) on the stlink
connect pin3 (tck) on the Tx to pin 9 (TCK) on the stlink
connect pin4 (GND) on the Tx to pin 20 (GND) on the stlink
connect pin5 (Vdd) on the Tx to pin 1 (Vcc) on the stlink

just above the 5-pin header is a 2-pin unpopulated header. this is BOOT0. you need to place a jumper between the 2 pins.
On the upper left of the 7e circuit board is another 2-pin unpopulated header. This is power bypass. You'll need to short these together too, but not yet.

You need to install the software for the stlink-v2 to your PC (Windows only)

Now, plug in the st-link to the PC. It should be detected and drivers installed
Startthe ST-Link software.

make sure there are batteries in the Devo7e, and apply the jumper across the power bypass.

Now press the connect button in the stlink software on the PC. It should connect. If you get an error message, you have a connection wrong somewhere.

You will need to do a bulk-erase of the chip 1st. then you can load the bootloader and do a program&verify.
your bootloader is now loaded.

You need to disconnect the jumper on BOOT0 and power bypass before you do anything else.