How to set the board to the Bootloader ISP mode

On K32W148-EVK board:

1. Press and hold the BOOT CONFIG switch SW4.

2. Connect the K32W148-EVK board via micro-USB connector to the PC.

3. Release the switch SW4.

4. Check the associated USB port number on the PC (such as, COM10).

5. While the K32W148 is in bootloader ISP mode, navigate to the folder where blhost.exe is located.

6. Type the command .\blhost.exe -p COM10 -- get-property 1 to make sure that the K32W148 is in Bootloader ISP mode, you should see:

   Ping responded in 1 attempt(s)

   Inject command ‘get-property’

   Response status = 0 (0x0) Success.

   Response word 1 = 1258488064 (0x4b030100)

   Current Version = K3.1.0

On a custom board:

1. Short the BOOT_CFG pin to VDD while reset.