How to use the Keypad?

Legacy Open AT
12

Have a look at the code below to make sure you are doing something similar (this is using a multitasking application, with a single task named gpioTask. Make sure this is indicated in your task table) :

#include "adl_global.h"
#include "generated.h"

/***************************************************************************/
/*  Local variables                                                                   
/***************************************************************************/
adl_ioDefs_t gpio_Input[1] =
{ ADL_IO_GPIO | 21| ADL_IO_DIR_IN };
s32 GPIO_event_handle = 0;
s32 Polling_handle;
/***************************************************************************/
/*  Local functions                                                                   
/***************************************************************************/
void GPIO_event_Handler(s32 GpioHandle, adl_ioEvent_e Event, u32 Size, void *Param);

void gpioTask(void)
{
	// Subscribe to the GPIO Event System
	GPIO_event_handle = adl_ioEventSubscribe(GPIO_event_Handler);

	//subscribe to GPIO service with polling every 100ms for GPIO
	Polling_handle = adl_ioSubscribe(1, gpio_Input, ADL_TMR_TYPE_100MS, 1, GPIO_event_handle);

	// If both subscriptions were ok, return OK
	if ((GPIO_event_handle > 0) && (Polling_handle > 0))
	{
		TRACE((1, "Subscribed to GPIO Events: OK"));
	}
	else
	{
		TRACE((1, "Subscribed to GPIO Events: FAILED %d, %d",GPIO_event_handle, Polling_handle ));
	}
}

void GPIO_event_Handler(s32 GpioHandle, adl_ioEvent_e Event, u32 Size, void *Param)
{
	switch (Event)
	{
		case ADL_IO_EVENT_INPUT_CHANGED:
		{
			if (adl_ioReadSingle(Polling_handle, &gpio_Input[0]) == 1) 
			{
				TRACE((1, "GPIO TOGGLED HIGH"));
			}
			else
			{
				TRACE((1, "GPIO TOGGLED LOW"));
			}
		}
		break;
	}
}