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dey-examples/apix-gpio-example
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Francisco Gil 029dcf0463 gpio: remove some wrong lines in the readme 
Signed-off-by: Francisco Gil <francisco.gilmartinez@digi.com>
 		2017-12-11 14:05:06 +01:00
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Makefile debug: changes in the makefile to reduce the optimization level. 2017-11-30 13:12:58 +01:00
README.md gpio: remove some wrong lines in the readme 2017-12-11 14:05:06 +01:00
main.c dey-examples: Rework the examples to be launch-ready 2017-11-30 13:12:58 +01:00

README.md

Digi APIX GPIO Example Application

The example application uses a gpio as input (e.g. a user button) and another one as output (e.g. a user led). The application toggles the output GPIO whenever an interrupt is generated in the input GPIO.

The GPIOs lines used in the sample are mapped as follows in the Digi Boards:

  • CCIMX6 SBC:
    • User button: EXP_GPIO_0 (GPIO Connector Pin 6)
    • User led: USER_LED0 (Connected in the board)
  • CCIMX6Plus SBC:
    • User button: EXP_GPIO_0 (GPIO Connector Pin 6)
    • User led: USER_LED0 (Connected in the board)
  • CCIMX6UL SBC Express:
    • User button: GPIO3_IO3 (Connected in the board)
    • User led: GPIO3_IO11 (Connected in the board)
  • CCIMX6UL SBC Pro:
    • User button: MCA_IO1 (GPIO Connector Pin 7)
    • User led: USER_LED1 (Connected in the board)

Running the application

Once the binary is in the target, launch the application:

# ./apix-gpio-example
Example application using libdigiapix GPIO support

Usage: apix-gpio-example <gpio_in> <gpio_out>

<gpio_in>     Push-button GPIO number or alias
<gpio_out>    LED GPIO number or alias

Aliases for GPIO numbers can be configured in the library config file

If no arguments are provided, the example will use the default values:

  • For the interfaces, default values are configured in "/etc/libdigiapix.conf"
  • Specific application default values are defined in the main file.

Compiling the application

This example can be compiled using a Digi Embedded Yocto based toolchain. Make sure to source the corresponding toolchain of the platform you are using, e.g:

$ . <DEY-toolchain-path>/environment-setup-cortexa7hf-neon-dey-linux-gnueabi
$ make

More information about Digi Embedded Yocto.

License

Copyright 2017, Digi International Inc.

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.