BUTONS: One button and scheduler

The following example just register one button connected to port B7, the button is sample every 10ms and needs at least 5 samples to report an event. Two tasks have been used, one in charge of polling the button main function every 10ms and a second one to rea is it was a press to toggle a led connected to pin C0

#include "bsp.h"
#include "scheduler.h"
#include "buttons.h"

KeyboardType Buttons;
ButtonType ButtonBuffer[ 1 ];
uint8_t ButtonSW7;

/**
 * @brief   Task1_Init
 * 
 * This function initializes the GPIO port B pin 7 as input where the button is connected
 * Also it initializes the button handler with the number of buttons to handle, 
 * the number of samples to detect an activation and the buffer to store the buttons structure.
 */
void Task1_Init( void )
{
    GPIO_InitTypeDef GPIO_InitStruct;

    GPIO_InitStruct.Mode  = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull  = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Pin   = GPIO_PIN_7;
    HAL_GPIO_Init( GPIOB, &GPIO_InitStruct );

    /* Initialize the button handler with one button and 5 samples
    to detect an activation */
    Buttons_Init( &Buttons, 1, 5, ButtonBuffer );
    /* Register the button in the button handler in pin 7 port B, the button
    report a logic 0 when is pressed*/
    ButtonSW7 = Buttons_Register( &Buttons, 7, 1, 0 );
}

/**
 * @brief   Task1_Run
 * 
 * This function poll the button handler to detect the button status every 10ms
 */
void Task1_Run( void )
{
    Buttons_MainFunction( &Buttons );
}

/**
 * @brief   Task2_Init
 * 
 * This function initializes the GPIO port C pin 0 as output where the LED is connected
 */
void Task2_Init( void )
{
    GPIO_InitTypeDef GPIO_InitStruct;

    GPIO_InitStruct.Mode  = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull  = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
    GPIO_InitStruct.Pin   = GPIO_PIN_0;
    HAL_GPIO_Init( GPIOC, &GPIO_InitStruct );
}

/**
 * @brief   Task2_Run
 * 
 * This function toggles the LED connected to port C pin 0 when the button is pressed
 */
void Task2_Run( void )
{
    /* Check if the button is pressed */
    if( Buttons_GetEvent( &Buttons, ButtonSW7 ) == BTN_PRESSED )
    {
        HAL_GPIO_TogglePin( GPIOC, GPIO_PIN_0 );
    }
}

/**
 * @brief   **Application entry point**
 *
 * Ptovide the proper description for function main according to your own
 * implementation
 *
 * @retval  None
 */
int main( void )
{
    SchedulerType Scheduler;
    TaskType TaskBuffer[ 2 ];
    TimerType TimerBuffer[ 1 ];

    HAL_Init( );

    __HAL_RCC_GPIOB_CLK_ENABLE( );
    __HAL_RCC_GPIOC_CLK_ENABLE( );

    /*set up scheduler to run up to 3 task with a 10ms tick */
    Scheduler_Init( &Scheduler, 10, 2, TaskBuffer, 1, TimerBuffer );
    /*Register the two task in our application */
    Scheduler_RegisterTask( &Scheduler, Task1_Init, Task1_Run, 10u );
    Scheduler_RegisterTask( &Scheduler, Task2_Init, Task2_Run, 50u );

    /*start the scheduler */
    Scheduler_MainFunction( &Scheduler );

    return 0u;
}