Supported DSP System Toolbox System Objects with CMSIS Library for ARM Cortex-A Processors

DSP System Toolbox™ system objects that work with the Embedded Coder^® Support Package for ARM^® Cortex^®-A Processors support code replacement with the CMSIS library only under specific conditions. You use this code replacement when generating C code from a model.

Note

The DSP System Toolbox System objects configured for code replacement using the CMSIS library throw an error when there is an overflow in the SRAM buffer on the PIL or hardware.

The DSP System Toolbox System objects support code replacement using the CMSIS library when you configure the System object as shown in the following table.

DSP System object	Supported Data Types	Input/Output Specifications	Property Specifications	Wrapper Calling CMSIS Functions
`dsp.FIRFilter` (DSP System Toolbox)	`double` `single` `fixdt(true,32,31)` `fixdt(true,16,15)` `fixdt(true,8,7)`	Real inputs Real outputs Input and output must be of the same data type. Input and output and coefficients must be of the same data type.	Structure: `Direct Form` For `'Direct Form'` Structure: NumeratorSource: `Property` or `Input port` For fixed-point inputs, set the `OverflowAction` property to `Saturate`.	`'Direct Form'` structure: `mw_arm_fir_f64` `mw_arm_fir_init_f64` `mw_arm_fir_f32` `mw_arm_fir_init_f32` `mw_arm_fir_init_q31` `mw_arm_fir_q31` `mw_arm_fir_init_q15` `mw_arm_fir_q15` `mw_arm_fir_init_q7` `mw_arm_fir_q7`
`dsp.FIRDecimator` (DSP System Toolbox)	`single` `fixdt(true,32,31)` `fixdt(true,16,15)`	Real inputs Real outputs Input and output must be of the same data type. Input and output and coefficients must be of the same data type.	Structure: `Direct Form` AllowArbitraryInputLength: `false` CoefficientSource: `Property` or `Input port(s)` For fixed-point inputs, set the `OverflowAction` property to `Saturate`.	`'Direct Form'` structure: `mw_arm_fir_decimate_init_f32` `mw_arm_fir_decimate_f32` `mw_arm_fir_decimate_init_q31` `mw_arm_fir_decimate_q31` `mw_arm_fir_decimate_init_q15` `mw_arm_fir_decimate_q15`
`dsp.SOSFilter` (DSP System Toolbox)	`double` `single` `fixdt(true,32,31)` `fixdt(true,16,15)`	Real inputs Real outputs Input and output must be of the same data type. Input and output and coefficients must be of the same data type.	Structure: `Direct Form I` or `Direct Form II transposed` CoefficientSource: `Property` or `Input port` HasScaleValues: `false` after setting CoefficientSource: `Input port` For fixed-point inputs, set the `OverflowAction` to `Saturate`.	`Direct Form I` Structure: `mw_arm_biquad_cascade_df1_init_f64` `mw_arm_biquad_cascade_df1_f64` `mw_arm_biquad_cascade_df1_init_f32` `mw_arm_biquad_cascade_df1_f32` `mw_arm_biquad_cascade_df1_init_q31` `mw_arm_biquad_cascade_df1_q31` `mw_arm_biquad_cascade_df1_init_q15` `mw_arm_biquad_cascade_df1_q15` `Direct Form II Transposed` structure: `mw_arm_biquad_cascade_df2T_init_f64` `mw_arm_biquad_cascade_df2T_f64`
`dsp.FFT` (DSP System Toolbox)	`double` `single`	Single or multi channel. Input length must be equal to FFT length. Inputs must be complex.	FFTImplementation: `Radix-2` BitReversedOutput: `false` Normalize: `false` FFTLength: `16`, `32`, `64`, `128`, `256`, `512`, or `1024`.	`'Direct Form'` structure: `mw_arm_cfft_init_f64` `mw_arm_cfft_f64` `mw_arm_cfft_init_f32` `mw_arm_cfft_f32`
`dsp.IFFT` (DSP System Toolbox)	`double` `single`	Single or multi channel. Input length must be equal to FFT length. Inputs must be complex.	FFTImplementation: `Radix-2` or `Auto` with power of two transform lengths. BitReversedInput: `false` Normalize: `true` FFTLength: `16`, `32`, `64`, `128`, `256`, `512`, or `1024`.	`mw_arm_cfft_init_f64` `mw_arm_cfft_f64` `mw_arm_cfft_init_f32` `mw_arm_cfft_f32`
`dsp.FIRInterpolator` (DSP System Toolbox)	`single` `fixdt(true,16,*)`	Single channel Real inputs Real outputs Inputs, coefficients, and outputs must be of same data type.	Set NumeratorSource property to `"Property"` or `"Input port"`. Set CoefficientsDataType to `numerictype(1,16,15)q(15)` For q15 fixed-point inputs: Set ProductDataType to `numerictype(1,32,15)`. Set AccumlatorDataType to `numerictype(1,64,30)`. Set CustomCoefficientsDataType to `numerictype([],16,15)`. Set CustomAccumulatorDataType to `numerictype([],32,30)`. Set CustomProductDataType to `numerictype([],32,30)`.	`mw_arm_fir_interpolate_init_f32` `mw_arm_fir_interpolate_f32` `mw_arm_fir_interpolate_init_q15` `mw_arm_fir_interpolate_q15`