Error! No text of specified style in document.
ST application note template
12/22
Version 0.1
STMicroelectronics Confidential
DRAFT
2.5.3
USB Connector
The USB connector accepts a micro USB type B and it is used to charge the battery or to
power the board if battery is not present.
2.5.4
Exposed pad connector
STEVAL-WESU1 gives the possibility to reduce form factor by cutting PCB area hosting
USB connector and expansion connector (see cutting line in 8). USB feature will be
accessible by exposed pads on the bottom of the PCB (8). Firmware upgrade will be
possible only over the air or via USB DFU.
Figure 8: STEVAL-WESU1 Exposed Pads
1: USB DP
2: USB 5V
3: GND
4: USB DM
5: TP512
– Expansion PIN 4 test
point
2.5.5
uFL connector
The uFL connector U201 (not mounted) is connected to BLUENRG-MS RF path through
C206 (not mounted). By soldering a 51pF capacitor and desoldering L204, the uFL
connector RF path can be activated, useful for debug purposes.
2.6
Buttons and LEDs
The STEVAL-WESU1 board has 2 LEDs and only one button for user operations.
Содержание STEVAL-WESU1
Страница 3: ......
