Be aware that it is necessary to work with the matching narrow band unit (NBU) image for the SDK version of the application you are working with. This means that when you download your SDK, prior to loading any wireless SDK example, update your NBU image with the provided binaries in the following folder of the SDK:
../middleware/wireless/ble-controller/bin
Here you will find the image for the NBU firmware:
Sabina_Bruce_0-1778679466583.png
To update the NBU, you may use the LinkFlash tool as follow:
- Open the path to LinkFlash tool. Usually, this path would be:
C:\nxp\LinkServer_xx.x.xx Sabina_Bruce_2-1778679602911.png
- Select
KW47B42ZB7xxxA:KW47-EVKas device, serial wire debug (SWD) as protocol and 0x48800000 as address. Check the 'Mass erase before programming' checkbox. - Select '
kw47_nbu_ble_all_hosted.bin' as image file. Press the 'Program' button and wait for the flash operation to be completed.Sabina_Bruce_3-1778679620070.png
