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Fixed-Point Property Settings for Biquad Filter Block
For help configuring the Biquad Filter block for code replacement with the
CMSIS library, type help configforCMSISCRL
on the MATLAB® command line.
Fixed-Point Property Name | Q15 | Q31 | Q15 fast version |
---|---|---|---|
stageInputMode | Same as input | Same as input | Same as input |
stageOutputMode | Same as section input | Same as section input | Same as section input |
firstCoeffMode | Binary point scaling | Binary point scaling | Binary point scaling |
firstCoeffWordLength | 16 | 32 | 16 |
firstCoeffFracLength | 15 | 31 | 15 |
secondCoeffFracLength | 15 | 31 | 15 |
scaleValueFracLength | 14 | 30 | 14 |
prodOutputMode | Binary point scaling | Binary point scaling | Binary point scaling |
prodOutputWordLength | 32 | 64 | 32 |
prodOutputFracLength | 30 | 62 | 30 |
DenProdOutputFracLength | 30 | 62 | 30 |
accumMode | Binary point scaling | Binary point scaling | Binary point scaling |
accumWordLength | 64 | 64 | 32 |
accumFracLength | 30 | 62 | 30 |
DenAccumFracLength | 30 | 62 | 30 |
OutputMode | Binary point scaling | Binary point scaling | Binary point scaling |