dds_hls.hpp

/*
 * Copyright (c) 2023, KUHEP, Kyoto University.
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 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
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 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 * without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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#ifndef DDS_HLS
#define DDS_HLS

#include <hls_math.h>
#include <hls_stream.h>
#include <ap_int.h>

#define BW_PHASE 16
#define BW_DATA 16


const int N_CH = 16;
ap_uint<16> calc_i(ap_uint<BW_PHASE> phase, ap_uint<BW_PHASE> pinc, ap_uint<BW_PHASE> stage);
ap_uint<16> calc_q(ap_uint<BW_PHASE> phase, ap_uint<BW_PHASE> pinc, ap_uint<BW_PHASE> stage);

typedef ap_uint<BW_PHASE> ph;
typedef ap_fixed<BW_PHASE,1> ph_f;
typedef ap_fixed<BW_DATA,1, AP_TRN, AP_SAT> data;
typedef ap_uint<BW_DATA*N_CH> data_tot;

data calc_i(ph phase);
data calc_q(ph phase);

void calc_iq(ph pinc,
             ph phase,
             ph stage,
             data& data_i,
             data& data_q);

void push(data buffer[N_CH], hls::stream<data_tot>& out);
void phase_calc(ph pinc, ph& phase);

void dds_hls(ph pinc,
             hls::stream<data_tot>& data_i,
             hls::stream<data_tot>& data_q);

#endif