2.115 32-bit Timer

This timer block offers a simple mechanism for firmware to maintain a time base.

Using the Library

void tmr32_callback(uint32_t status, uintptr_t context)
{
    LED0_Toggle();
}

int main ( void )
{
    /* Initialize all modules */
    SYS_Initialize ( NULL );
    
    TIMER32_0_CallbackRegister(tmr32_callback, 0);
    
    TIMER32_0_Start();

    while ( true )
    {
        /* Maintain state machines of all polled MPLAB Harmony modules. */
        SYS_Tasks ( );
    }

    /* Execution should not come here during normal operation */

    return ( EXIT_FAILURE );
}

Library Interface

32-bit Timer peripheral library provides the following interfaces:

Functions


Name	Description
TIMER32_x_Initialize	Initializes given instance of TIMER32 timer peripheral.
TIMER32_x_PeriodHasExpired	Returns the timer interrupt status
TIMER32_x_PreLoadCountGet	Returns the timer pre-load value
TIMER32_x_PreLoadCountSet	Sets the timer pre-load value
TIMER32_x_PrescalerSet	Selects the divider value for the clock source for the Timer32 peripheral.
TIMER32_x_Reload	Reloads the timer counter
TIMER32_x_Start	Starts the timer counter
TIMER32_x_Stop	Stops the timer counter
TIMER32_x_FrequencyGet	Returns the input frequency of the Timer32 peripheral
TIMER32_x_CounterSet	Sets the timer counter
TIMER32_x_CounterGet	Returns the timer counter value
TIMER32_x_CallbackRegister	Allows application to register a callback with the PLIB
TIMER32_x_AutoReStartEnable	Enable auto re-start of the timer
TIMER32_x_AutoReStartDisable	Disable auto re-start of the timer

Data types and constants


Name	Type	Description
TMR32_CALLBACK	Typedef	Defines the data type and function signature for the timer peripheral callback function.

Note: Not all APIs maybe implemented. See the specific device family section for available APIs.