Freescale Freedom Development Board FRDM-CR20A User’s Guide, Rev. 0, 04/2015
Freescale Semiconductor, Inc.
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FRDM-CR20A development board
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32 MHz reference oscillator
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2.4 GHz frequency operation (ISM band)
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1 RGB LED indicator driven by external MCU
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2 Push button switches driven by external MCU
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1 Reset button driven by XCVR or external MCU
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Power translator for GPIOs, freescale MCU support 3.3V or external sources such as Arduino 5V
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Bit stream mode (BSM) to monitor packet data with synchronization clock
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Low-power operating modes with single SPI command device wake-up (SPI communication is
enabled in LP mode
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Provides access to the MCR20AVHM set of GPIOs
Figure 2
shows the main board features and Input/Output headers for the Freescale FRDM-CR20A board.
Figure 2. FRDM-CR20A callouts and I/O headers
3.3
Software and driver considerations
No special software required. This is not a standalone board; an external MCU is required for enablement.
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FRDM-CR20A development board
4.1
FRDM-CR20A board overview
The FRDM-CR20A is an evaluation board based on the Freescale MCR20A transceiver. The
FRDM-CR20A provides a platform to evaluate the MCR20A transceiver, and develop software and
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