75 lines
1.7 KiB
ReStructuredText
75 lines
1.7 KiB
ReStructuredText
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======================
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Adafruit NRF52 Feather
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======================
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The `Adafruit NRF52 Feather <https://www.adafruit.com/product/3406>`_
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is a development board for the nRF52832 SoC from Nordic.
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Serial Console
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==============
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The Feather nRF52 default console is the UART0.
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The Feather nRF52 have USB serial bridge chip on board and UART0 is
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connected to micro USB connector through the bridge chip.
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LEDs and Buttons
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================
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LEDs
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----
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The Feather has 2 user-controllable LEDs:
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==== =======
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LED MCU
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==== =======
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LED1 PIN0-17
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LED2 PIN0-19
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==== =======
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A high output illuminates the LED.
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CONFIG_ARCH_LEDS
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----------------
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If CONFIG_ARCH_LEDS is not defined, then the LEDs are completely under
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control of the application. The following interfaces are then available
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for application control of the LEDs::
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uint32_t board_userled_initialize(void);
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void board_userled(int led, bool ledon);
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void board_userled_all(uint32_t ledset);
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Pushbuttons
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-----------
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The Feather nRF52 does not have user-controllable buttons. The reset button
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on the board is connected to nRF52832 reset pin directly.
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Configurations
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==============
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Each configuration is maintained in a sub-directory and can be selected as
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follow::
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tools/configure.sh nrf52-feather:<subdir>
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Where <subdir> is one of the following:
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nsh
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---
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This configuration is the NuttShell (NSH) example at examples/nsh/.
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NOTES:
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1. This configuration uses the mconf-based configuration tool. To
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change this configurations using that tool, you should:
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a. Build and install the kconfig-mconf tool. See nuttx/README.txt
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see additional README.txt files in the NuttX tools repository.
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b. Execute 'make menuconfig' in nuttx/ in order to start the
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reconfiguration process.
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