/ble-sdk-efm32

Primary LanguageCMIT LicenseMIT

Bluetooth low energy SDK for efm32

Port of the Bluetooth low energy SDK for Arduino to the EFM32. This uses the Nordic Semiconductor nRF8001. It has been tested using nRF2741 module connected to EFM32 Leopard Gecko Starter Kit(STK3600). The nRF2741 is part of the nRF8001 Development kit. Alternatively you can use an nRF8001 breakout board or shield.

This port is not backward compatible with Arduino, so all Arduino related files were deleted. If you are interested in those files please check original repo: ble-sdk-arduino

Contents

EFM32 ready examples are located under \demos_efm\ directory.

Quick start guide

  1. Connect nRF2741 to STK3600

    STK3600 (Exp header) nRF2741 (P1)
    0 GND 1 GND
    1 VMCU 2 VCC
    4 US1_TX 6 ACI_MOSI
    6 US1_RX 7 ACI_MISO
    8 US1_CLK 5 ACI_SCLK
    10 US1_CS 9 ACI_REQN
    14 PD5 8 ACI_RDYN
    16 PD6 10 ACI_RESET

  2. Compile and load chosen example with Keil uVision

    Tips:

    • Remember to chose SW interface instead of JTAG in debugger settings (pane 'Debug')

    • If you want to see printf() output in Keil debugger window:

      1. Go to debugger settings (pane 'Trace'):
        1. Enable Trace
        2. Set Core Clock to 14MHz
        3. Enable 'Autodetect max SWO Clk'
      2. Start debug session:
        1. Open printf viewer via 'View'->'Serial Windows'->'Debug (printf) Viewer'
        2. Run program and enjoy printf() output

Tools

nRFgo Studio for developing GATT Clients and Services for nRF8001

References

nRF8001 datasheet

Webinars and FAQ when getting started