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##

# 2.121.55 TCCx_CaptureCallbackRegister Function

## C

    /* x = TCC instance number */
    void TCCx_CaptureCallbackRegister( TCC_CALLBACK callback,
    uintptr_t context );

## Summary

Registers the function to be called from interrupt.

## Description

This function registers the callback function to be called from interrupt.

## Precondition

TCCx_CaptureInitialize() must have been called first.

## Parameters

Param | Description
--- | ---
callback | callback function pointer
context | Allows the caller to provide a context value (usually a pointer to the callers context for multi-instance clients)

## Returns

None.

## Example

    void TCC_Callback_Fn( uintptr_t context );

    TCC0_CaptureInitialize();
    TCC0_CaptureCallbackRegister(TCC_Callback_Fn, NULL);

## Remarks

Context value can be set to NULL if not required. To disable callback function, pass NULL for the callback parameter.