NXP Semiconductors FRDM-KW38 Freedom Development Board

NXP Semiconductor FRDM-KW38 Freedom Development Board is a highly configurable and low-power development board designed to evaluate KW39A/38A/37A/38Z/37Z (KW38) wireless Microcontrollers (MCUs). The FRDM-KW38 board offers easy-to-use mass-storage device mode flash programmer, a virtual serial port, and standard programming and run-control capabilities. This freedom development board consists of the KW38A device with a 32MHz reference oscillator crystal, RF circuitry (including antenna) and 4Mbit external serial flash. The board also includes CAN and LIN transceivers and supporting circuitry in the popular freedom board form-factor. This FRDM-KW38 board is a standalone PCB and supports application development with NXP’s Bluetooth^® Low Energy (BLE) and generic FSK libraries.

USB Dongle

The USB Dongle can be used as a wireless sniffer to monitor the wireless communication packets in the targeted network. This can be connected to a PC and installing the required monitoring software. The USB dongle alternatively can be used as a wireless node with an easy connection to a PC or other USB enabled device.

Features

NXP’s ultra-low-power KW38A wireless MCU supporting BLE and generic FSK
Fully compliant Bluetooth v5.0 Low Energy (BLE)
Reference design area with small-footprint and low-cost RF node:
- Single-ended input/output port
- Low count of external components:
  - Programmable output power from -30dBm to +5dBm at the SMA connector, when using DC-DC Bypass or operating the DC-DC in buck mode
- Receiver sensitivity is -100dBm, typical (@1 % PER for 20-byte payload packet) for GFSK applications (250kbps,BT=0.5, and h=0.5), at the SMA connector
- Receiver sensitivity is -95dBm (for BLE applications) at the SMA connector
Integrated PCB inverted F-type antenna and SMA RF port (requires moving C7 to C8)
Selectable power sources
DC-DC converter with buck and bypass operation modes
32MHz reference oscillator for RF operation
32.768kHz reference oscillator mainly use for RTC operation and RF low power operation

2.4GHz frequency operation (ISM and MBAN)
4Mbit (512kB) external serial flash memory for Over-the-Air Programming (OTAP) support
NXP FXOS8700CQ digital sensor, 3D accelerometer (±2g/±4g/±8g), and 3D magnetometer
Thermistor circuit to test KW38 ADC module
Coin cell connector to be able to work using a CR2032 coin cell
Integrated Open-Standard Serial and Debug Adapter (OpenSDA)
Cortex 10-pin (0.5) SWD debug port for target MCU
Cortex 10-pin (0.5) JTAG port for OpenSDA updates
One RGB LED indicator
One red LED indicator
Two push-button switches
NXP TJA1057 high-speed CAN transceiver
NXP TJA1027 LIN 2.2A/SAE J2602 transceiver
USB Dongle:
- Ideal for Bluetooth LE/Generic FSK/802.15.4 sniffer or connection to PC/Tablet
- Integrated PCB meander antenna
- RF regulatory certified
- OpenSDA, Serial Wire Debug (SWD), and JTAG debug
- USB Type-A connector

NXP Semiconductors FRDM-KW38 Freedom Development Board

USB Dongle

Features

Block Diagram

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