NINA-B1 series - System integration manual
UBX-15026175 - R16
Appendix
Page 58 of 63
C1-Public
D
Upgrading software 3.0.1 or earlier over UART
The upgrade of software version 3.0.1, or earlier, over the UART interface is done in two steps:
1.
The bootloader is updated.
2.
The application software and softdevice is updated.
☞
Note that the boot loader update requires flow control on the UART.
D.1
Upgrading the boot loader
D.1.1
Using s-center
The flashing protocol is implemented in the bootloader. When upgrading the u-connectXpress
software from version 3.0.1 or earlier, the bootloader should be flashed as described in the procedure
below.
Flash the bootloader to the module using
s-center
.
1)
Select
Tools
>
Software Update
, as shown in the following screenshot:
2)
Select the file that contains the bootloader (NINA-B11x-BOOT3.0.1.zip). The file is included in
the u-connectXpress software package for UART: