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NXP Semiconductors FRDM-KW38 Freedom Development Board

NXP Semiconductor FRDM-KW38 Freedom Development Board is a highly configurable and low-power development board that evaluates the KW39A / 38A / 37A / 38Z / 37Z (KW38) wireless microcontrollers (MCUs). The FRDM-KW38 board offers an easy-to-use mass-storage device mode flash programmer, a virtual serial port, and standard programming and run-control capabilities. The board consists of the KW38A device with a 32MHz reference oscillator crystal, RF circuitry (including antenna), and 4-Mbit external serial flash. The board also includes CAN and LIN transceivers and the supporting circuitry in the freedom board form factor. NXP FRDM-KW38 Freedom Development Board is a standalone PCB and supports application development with NXP's BLUETOOTH® Low Energy 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. After installing the required monitoring software, it can be connected to a PC. Alternatively, it can be used as a wireless node with an easy connection to a PC or other USB-enabled device.

Features

  • NXP ultra-low-power KW38A wireless MCU supporting BLE and generic FSK
  • Fully compliant Bluetooth v5.0 Low Energy
  • 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 SMA connector when using DC-DC bypass or operating DC-DC in buck mode
    • Receiver sensitivity is -100dBm, typical (at 1% PER for 20-byte payload packet) for GFSK applications (250kbps,BT=0.5, and h=0.5) at SMA connector
    • Receiver sensitivity is -95dBm (for Bluetooth LE applications) at 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 used 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 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
  • 1x RGB LED indicator
  • 1x red LED indicator
  • 2x 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

Block Diagram

Block Diagram - NXP Semiconductors FRDM-KW38 Freedom Development Board

Additional Resources

Application Notes

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發佈日期: 2020-05-15 | 更新日期: 2024-12-30