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2.1i COREGEN: Sample COREGEN .COE coefficient files for a FIR filter, Distributed RAM, Distributed ROM, and Block RAM
Record #4913
Product Family: Software
Product Line: Coregen
Product Part: Coregen
Product Version: 2.1
Problem Title:
2.1i COREGEN: Sample COREGEN .COE coefficient files for a FIR filter, Distributed RAM,
Distributed ROM, and Block RAM
Problem Description:
Keyword: COREGEN, CORE Generator, ROM, RAM, FIR, Filter, PDA, SDA
Urgency: standard
The following are sample Coregen coefficient (.COE) files for FIR Filters,
Distributed ROM and RAM, and Virtex Block Memory.
The sample COE files may also be found in your COREGEN
installation under the $XILINX\coregen\data directory.
Solution 1:
Dual Port Block RAM:
Component_Name=v_dpbram;
Depth_A = 4096;
Data_Width_A = 16;
Depth_B = 1024;
Data_Width_B = 64;
Radix = 2;
Default_Data = 10101010;
MEMORY_INITIALIZATION_VECTOR=
1111111111111110,
1111111111111101,
1111111111111011,
1111111111110111;
For more information, please refer to the online specification
sheet for the Block RAMs in COREGen.
Solution 2:
Single Port Block RAM:
Component_Name = v_spbram;
Depth = 256;
Data_Width = 32;
Radix = 16;
Default_Data = FFF;
MEMORY_INITIALIZATION_VECTOR = FF0,F0F,0FF,FF4,F4F,4FF,FF8,F8F,8FF;
For more information, please refer to the online specification
sheet for the Block RAMs in COREGen.
Solution 3:
Distributed RAM with decimal data:
Component_Name=rom32x8;
Data_Width = 8;
Address_Width = 5;
Depth = 32;
Radix = 10;
memdata=127,127,127,127,127,126,126,126,125,125,125,4,3,2,0,-1,-2,
-4,-5,-6,-8,-9,-11,-12,-13,-38,-39,-41,-42,-44,-45,-128;
Solution 4:
Distributed RAM with hex data:
Component_Name=ram16x12;
Data_Width = 12;
Address_Width = 4;
Depth = 16;
Radix = 16;
memdata=346,EDA,0D6,F91,079,FC8,053,FE2,03C,FF2,02D,FFB,022,002,
01A,005;
For more information, please refer to the online specification
sheet for the Distributed RAMs in COREGen.
Solution 5:
SDA FIR Filter:
Component_Name=sdafir;
Number_Of_Taps=6;
Radix=10;
Input_Width=10;
Output_Width=24;
Coefficient_Width=11;
Impulse_Response_Symmetry = false;
CoefData= -1,18,122,418,-40,3;
The following is a brief explanation of the keywords in the
coefficient File.
Component_name: declares the name of the component.
Number_of_taps: Specifies the number of taps.
Radix: Specifies the base of the coefficient.
Radix=10 indicates that the
coefficients are in base 10 (decimal) format,
Radix=16 indicates that the
coefficient is in hexadecimal.
Input_width: Specifies the input data width.
Output_width: Specifies the output data width.
Coefficient_width: Specifies the output width.
Impulse_Response_Symmetry: Specifies the symmetry of the filter. "TRUE"
indicates that the filter coefficients are
symmetrical, "FALSE" means they are
asymmetrical.
Coef_Data: value of the coefficients
For more information, please refer to the specification sheets
for the FIR filters.
End of Record #4913 - Last Modified: 09/07/99 09:32 |
