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34 lines
779 B
C++
Executable file
34 lines
779 B
C++
Executable file
#define SIZE 128
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#define N 10
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void fir(int * input, int * output) {
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#pragma HLS INTERFACE m_axi port=input offset=slave bundle=input_mem
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#pragma HLS INTERFACE m_axi port=output offset=slave bundle=output_mem
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#pragma HLS INTERFACE s_axilite port=return bundle=params
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int coeff[N] = {13, -2, 9, 11, 26, 18, 95, -43, 6, 74};
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int shift_reg[N] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
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//TODO: insert array partition directive
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for (int n = 0; n < SIZE; n++) {
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//TODO: insert pipeline directive
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int acc = 0;
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for(int j = N-1; j > 0; j--) {
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//TODO: insert unroll directive
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shift_reg[j] = shift_reg[j-1];
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}
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shift_reg[0] = input[n];
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for (int j= 0; j< N; j++ ) {
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//TODO: insert unroll directive
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acc += shift_reg[j]*coeff[j];
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}
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output[n] = acc;
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}
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}
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