How to run KW47-M2 standalone

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Board pictures (KW47-M2)

Connectors (KW47-M2)

Part Identifier	Connector Type	Description
J3	2x5 pin header	SWD DNP
J8	1x6 pin header	UART1 – FTDI DNP
J9	1x6 pin header	Power connector DNP

Jumpers (KW47-M2)

Part Identifier	Connector Type	Description
JP5	2x3 pin header	supply power source selection jumper: 1-2 shorted (default configuration): Use this configuration to set target MCU in DCDC mode.  3-4 shorted: Use this configuration to set target MCU in LDO/Bypass mode. All MCU power domains are supplied by P3V3_DUT.
JP4	1x2 pin header	Target MCU boot configuration enable jumper: • Open (default setting): ISP mode is disabled • Shorted: ISP mode is enabled

Push Buttons (KW47-M2)

Part Identifier	Switch name	Description
SW1	Reset button	Resets the target MCU. This causes peripherals to reset to their default state. After this, MCU ROM bootloader will be executed. LED D1 turns on at SW1 press.
SW2	User PB	General purpose input. This pin supports low-power wakeup capabilities through Wake-Up Unit (WUU).

LEDs (KW47-M2)

Part Identifier	Switch name	Description
D1	Reset LED	Indicates a system reset event. When reset is triggered—such as by pressing the SW1 reset button—the D1 LED turns ON.
D2	Led Green	User indicator, indicates system activity

Power Configurations (KW47-M2)

• Populate J9 PWR connector. To run KW47 M2 as standalone, supply 3.3V to P3V3_DUT power rail

Figure 1 J9 M10

Configuration (KW47-M2)  

To get the KW47 M2 up and running, you need to select a power configuration through JP5 jumper. For more information on KW47 power configurations, refer to RM:

Part Identifier	pin	Description
JP5	1-2	1-2 shorted (default setting): Sets target MCU to DCDC mode. This mode is the recommended configuration.
JP5	3-4	3-4 shorted: Sets target MCU to LDO mode.

External power configuration (KW47-M2)

Enable KW47-M2 by supplying power through J9 connector:

Note: When using DCDC or LDO mode, it is recommended to supply P3V3_DUT power rail only.

Part Identifier	pin	Description
J9	5	Use this pin to supply P3V3_DUT power rail with 3.3V. To get KW47-M2 up and running, it is recommended to set KW47 to DCDC mode and supply P3V3_DUT only.
J9	3	Use this pin to supply P1V8_LDO power rail with 1.8V. This power rail is intended for an accurate control of VDD_RF power domain, but it is not necessary.
J9	1	Use this pin to supply P1V1_EXT power rail with 1.1V. This power rail is intended for an accurate control of VDD_CORE power domain, but it is not necessary.

Programming the NBU in the KW47-M2 board

The following steps guide you to program the NBU software for the KW47-M2

1. Place a jumper on the JP4 header while holding down the reset button (SW) on the module board. Then, connect the USB cable to the J8 connector (USB-to-serial bridge) and plug it into your computer. After the USB cable is connected, release the reset button.

2. Verify what COM Port was assigned to your KW47-M2 board. You can check the COM Port assigned in the Windows “Device Manager” program. Search for “Ports (COM & LPT)” and save the COM Port number. In this example the COM Port assigned was “COM19”

3. Navigate to your computer to the MCU-Link installation folder. The default installation path is located at “C:\nxp\LinkServer_25.3.31\MCU-LINK_installer
4. Locate the “bin” folder and open it. Run the script “blhost” within a windows command prompt.

Type “blhost.exe -p COMX write-memory 0x48800000”, drag and drop the NBU binary file. When the process is ready you will see the response status "success"