Connections
====================
* PA0: User button to force system bootloader entry with reset (enter USB DFU)

* JTAG/SWD
 * PC0: TMS/SWDIO
 * PC1: TCK/SWCLK
 * PC2: TDI
 * PC3: TDO/TRACESWO
 * PC4: SRST (NRST/System Reset)
 * PC5: TRST (optional Test Reset)

* Green Led(ULED/PA4): Indicator that system bootloader is entered via BMP

* USB USART
 * PA9: USART1 TX (usbuart_xxx)
 * PA10: USART1 RX (usbuart_xxx)

How to Build
============
```
cd blackmagic
make clean
make PROBE_HOST=hydrabus
```

How to Flash the firmware with Windows
========================================
* After build:
 * 1) Download files from https://github.com/hydrabus/hydrafw/tree/master/utils/windows_dfu_util
 * 2) Force the F4 into system bootloader mode by jumpering "BOOT0" to "3V3" and "PB2/BOOT1" to "GND" and reset (RESET button). System bootloader should appear.
 * 3) Run the command `DfuSeCommand.exe -c --de 0 -d --fn .\src\blackmagic.dfu`