5.5.6 FIRInterpDelayInit
Description
FIRInterpDelayInit initializes to zero the delay values in an FIRStruct filter structure, optimized for use with an FIR interpolating filter.
Prototype
void FIRInterpDelayInit (FIRStruct* filter, int rate);
Arguments
|
Parameters |
Description |
|---|---|
|
filter |
Pointer to the FIRStruct filter structure |
|
rate |
Rate of interpolation (upsampling factor, also R) |
Returns
None.
Remarks
Delay, d[m], defined in 0 ≤ m < M/R, with M being the number of filter coefficients in the interpolator. See the description of the FIRStruct structure above.
Source File
- firinterpdelay_aa.s
Function Profile
|
Device |
Program Words |
Cycles |
|---|---|---|
|
PIC32A |
7 |
32 + M/R |
System resource usage
- W0…W3 - used, not restored
- REPEAT instruction(s) usage – 2