1.6.10.2 EIC_CallbackRegister Function
C
void EIC_CallbackRegister (EIC_PIN pin, EIC_CALLBACK callback uintptr_t context);
Summary
Registers the function to be called when an interrupt condition has been sensed on the pin.
Description
This function registers the callback function to be called when an interrupt condition has been sensed on the pin. A unique callback function can be registered for each pin.
When an interrupt condition has been sensed on the pin, the library will call the registered callback function and will then clear the interrupt condition when the callback function exits.
Precondition
EIC_Initialize() must have been called first for the associated instance.
Parameters
| Param | Description |
|---|---|
| pin | EIC Pin number |
| callback | callback function pointer. Setting this to NULL will disable the callback feature |
| context | An application defined context value that will be passed to the callback function |
Returns
None.
Example
// Refer to the description of the EIC_CALLBACK data type for details on API // usage.
Remarks
Context value can be set to NULL, if not required.