Appendix C: FEM Firmware Update Procedure
Note:
To upgrade the FEM module firmware, the FEM must have resistor R78 fitted.
The FEM firmware can be upgraded using the STM32 built in bootloader on UART0
Hardware requirements:
USB to serial FTDI cable, TTL-232R-3V3
https://shop.clickandbuild.com/cnb/shop/ftdichip?productID=53&op=catalogue-
product_info-null&prodCategoryID=296
Software requirements
: ST Flash Loader demonstrator
http://www.st.com/content/st_com/en/products/development-tools/software-
development-tools/stm32-software-development-tools/stm32-
programmers/flasher-stm32.html
FEM firmware binary file
: FemApp.bin (available)
C.1: Procedure
Note:
The first steps of the procedure are slightly different depending on the type of the FEM
(black –preproduction units - / green – production units) that needs to be updated. From the fifth
step onwards, the process applies to both FEMs.
C.1.1: Black FEM
1. Make sure FEM module is powered off
2. Connect Pin 1 of P6 to pin 2 on P5
3. Power on FEM
4. Remove P5 to P6 link
84:
BGAN Radio Module Terminal Development Kit User Guide
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