Virtex-à¸â6 ML605 Development Board with 4-à¸âDSP FMC-à¸â150 ...

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5. Change the data format for the filter that was just created to fixed. %set filter to fixed type set(h,'Arithmetic','fixed'); 6. Review the specifications of the filter that was just created. h = FilterStructure: 'Direct-‐Form FIR' Arithmetic: 'fixed' Numerator: [1x81 double] PersistentMemory: false CoeffWordLength: 16 CoeffAutoScale: true Signed: true InputWordLength: 16 InputFracLength: 15 FilterInternals: 'FullPrecision' 31
7. Use the filter visualization tool to view the frequency response of the filter. See Figures 15 and Figure 16. hfvt = fvtool(h); Figure 24 – Magnitude Response Figure 25 – Phase Response 8. Export the filter coefficients as 16bit hex such that they can be readily use in a Xilinx COE file to initialize block memory in an FIR core. fcfwrite(h,'simple_lowpass','hex') In the above command, h is the filter itself, simple_lowpass is the name of the file to be exported, hex is the data format. The coefficients are listed under numerator: Numerator: fe6b fd99 fca3 ....... 32
Page 1 and 2: Virtex-‐6 ML605 Development
Page 3: Introduction The purpose of this
Page 8 and 9: Hardware Connecting the ML605 an
Page 10 and 11: 3. Connect a mini-‐B USB ca
Page 12 and 13: Block Diagram Signal Generator Os
Page 14 and 15: 4. Select the top file ML605_fm
Page 17 and 18: 5. After clicking on Configure,
Page 19 and 20: 11. Activate channels one and t
Page 21 and 22: Figure 15 - Removing the origi
Page 23 and 24: 5. When prompted, select yes to
Page 25 and 26: 9. Click next to move on to p
Page 27 and 28: Verification At this point it i
Page 29 and 30: Appendix The appendix of the tu
Page 31: Designing a Digital LPF in MAT
Page 35 and 36: MATLAB Filter Coefficients % Gen
Page 37: References [1] No author provide

Virtex-à¸â6 ML605 Development Board with 4-à¸âDSP FMC-à¸â150 ...

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Virtex-à¸â6 ML605 Development Board with 4-à¸âDSP FMC-à¸â150 ...