nuttx-apps/examples/timer_gpout/Kconfig

#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#

config EXAMPLES_TIMER_GPOUT
	tristate "Timer GPOUT example"
	default n
	depends on TIMER && DEV_GPIO
	---help---
		Enable the timer-gpout example.
		This example uses the timer interrupt to periodically
		change the state of a digital output.
		The digital output may be a relay, a led or anything else.
		This example can be very useful to validate timer drivers
		by using a logic analyzer connected to the digital output.
		This example, differs from the timer example because it
		waits on a sigwaitinfo() instead of using a signal handler.
		This approach ensures a deterministic wake-up time when
		the signal occurs. 

if EXAMPLES_TIMER_GPOUT

config EXAMPLES_TIMER_GPOUT_TIM_DEVNAME
	string "Timer device name"
	default "/dev/timer0"
	---help---
		This is the name of the timer device that will be used.

config EXAMPLES_TIMER_GPOUT_GPIO_DEVNAME
	string "GPOUT device name"
	default "/dev/gpio0"
	---help---
		This is the name of the gpio device that will be used.

config EXAMPLES_TIMER_GPOUT_INTERVAL
	int "Timer interval (microseconds)"
	default 1000000
	---help---
		This is the timer interval in microseconds.

config EXAMPLES_TIMER_GPOUT_SIGNO
	int "Notification signal number"
	default 17
	---help---
		This is the signal number that is used to notify that a timer
		interrupt occurred.

config EXAMPLES_TIMER_GPOUT_STACKSIZE
	int "Timer stack size"
	default DEFAULT_TASK_STACKSIZE
	---help---
		This is the stack size allocated when the timer task runs.

config EXAMPLES_TIMER_GPOUT_PRIORITY
	int "Timer task priority"
	default 255
	---help---
		This is the priority of the timer task.

config EXAMPLES_TIMER_GPOUT_PROGNAME
	string "Timer GPOUT program name"
	default "timer_gpout"
	---help---
		This is the name of the program that will be used from the nsh.

endif