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3.2.2. Operation Procedure of Using Multi Boards
1.
Install driver for STM32-Nucleo board, which can be downloaded from the following address:
http://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/mcu-eval-to
ols/stm32-mcu-eval-tools/stm32-mcu-nucleo/nucleo-l476rg.html;
2.
Install USB-UART driver, which can be downloaded from the following address:
https://www.ftdichip.com/Drivers/VCP.htm;
Remove 0 Ω resistors of SB13 and SB14 with soldering iron, and then solder them onto SB62 and
3.
SB63 respectively;
4.
Short-circuit pin 1 and pin 2 of CN2, pin 3 and pin 4 of CN2, pin 1 and pin 2 of JP5 and pin 1 and pin 2
of JP6;
5.
Insert Micro USIM card (NB-IoT/GSM card) into J401, or insert Micro USIM card (GSM card) into
J402;
6.
Connect rod antenna with SMA connector on J301;
Switch UART_SWITCH J304 to "MAIN UART TO MCU" state;
7.
8.
Connect Arduino interface to STM32-Nucleo board, and connect J307, J309, J311 and J310 of
BC92-TE-B to CN5, CN6, CN8 and CN9 respectively;
Connect CN1 of STM32-Nucleo board with PC via Mini USB cable, and switch S201 to "ON". After
9.
the module is powered on, device information will be shown in the "Device Manager" on PC.
3.2.3. Description of Pin Connection
The table below shows the pin connection between BC92-TE-B and STM32-L476RG MCU.
Table 3: Pin Connection between BC92-TE-B and STM32-L476RG MCU
No.
MCU (Morpho)
1
PA2
2
PA3
BC92-TE-B_User_Guide
Figure 9: ST-LINK Interface Displayed on PC
Arduino
D1
CN9-2
D0
CN9-1
NB-IoT Module Series
BC92-TE-B User Guide
BC92-TE-B
Remark
Connect to RX of main
UART_MCU_TX
UART
Connect to TX of main
UART_MCU_RX
UART
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