MIC_AdjustAutoSamplingAsync

C Specification

#include <nitro/spi.h>
MICResult MIC_AdjustAutoSamplingAsync(
u32             rate,
MICCallback     callback,
void*           arg );

Arguments

rate The sampling rate. Directly specifies the CPU timer rate of the ARM7.
Can also be selected from enumerated-type MICSamplingRate.
callback Specifies the pointer to the callback function. This callback is called from within the interrupt handler.
arg Specifies the argument passed to the callback function.

Return Values

Returns the enumerated-type MICResult process result. If the asynchronous process started normally, returns MIC_RESULT_SUCCESS. If the process fails for some reason, returns some other value.

Description

Asynchronously adjusts the sampling rate of the microphone's auto-sampling.
This is only valid when auto-sampling has already begun. When ARM7 receives the request, the CPU timer cycle gets updated.
This function issues an auto-sampling adjustment request to ARM7, waits for a response from ARM7, and returns the process result.
You need to get the process result from the ARM7 via the result argument passed to the user callback function. If this function fails, asynchronous operations are not performed and the user callback function cannot be called.

See Also

MIC_AdjustAutoSampling, MIC_StartAutoSamplingAsync, MIC_StopAutoSamplingAsync

Revision History

06/27/2005 Added additional text indicating that the callback is called from the interrupt handler.
01/11/2005 Initial version