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Laurids_PETERSE
Introduction
The WB55CG USB dongle is included in the P-NUCLEO-WB55 bundle together with the NUCLEO-WB55RG. The WB55CG dongle does not have an ST-LINK/V2-1, but the NUCLEO-WB55RG does.
The WB55CG USB dongle can be programmed through USB BootLoad or USB DFU. If we want to use ST-LINK, we should use an external ST-Link V2-1.
Since the WB55CG USB dongle is only sold bundled with the NUCLEO-WB55RG board, we use the ST-LINK V2 integrated on the NUCLEO-WB55RG to debug/program our USB dongle.
1. Material used
A NUCLEO-WB55RG that has an on-board ST-LINK/V2-1:
2. Pin connections
First, you have to power the USB dongle through the USB_USER port. Select the position 0 for the SW2. Finally, follow the table below to connect the ST-LINK and USB dongle:
| NUCLEO-WB55RG (JP5-ST-Link pins on the right of the board) | WB55CG USB dongle (Connector CN1) |
| GND | GND |
| NRST | NRST |
| SWDIO | PA13 |
| SWCLK | PA14 |
| SWO | PB3 |
| T_VDD | +3V3 |
