Adding ADC module and its testbench

Author: ErickOF

modules/dac/Makefile

@@ -0,0 +1,27 @@
+# Include common Makefile
+include ../Makefile
+
+SRCDIR+=../../utils/src
+INCDIR+=-I$(SYSTEMC_AMS_HOME)/include -I../utils/include
+LIBDIR+=-L$(SYSTEMC_AMS_HOME)/lib-linux64
+LIBS+=-lsystemc-ams
+
+# Defining preprocessor directive for debug
+ifdef IPS_DEBUG_EN
+		CFLAGS += -DIPS_DEBUG_EN
+		LFLAGS += -DIPS_DEBUG_EN
+endif # IPS_DEBUG_EN
+
+# Defining preprocessor directive for dumping enable
+ifdef IPS_DUMP_EN
+		CFLAGS += -DIPS_DUMP_EN
+		LFLAGS += -DIPS_DUMP_EN
+endif # IPS_DUMP_EN
+
+# Run the compiled file
+run:
+		@./$(TARGET)
+
+# Show waveform
+waveform:
+		@gtkwave ips_dac.vcd

modules/dac/include/dac.hpp

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+#ifndef IPS_DAC_MODEL_HPP
+#define IPS_DAC_MODEL_HPP
+
+#include <systemc-ams.h>
+#include "vunit.hpp"
+
+
+template <unsigned int BITS = 8, int VMIN = 0, int VMAX = 5, VUnit VU = VUnit::v>
+SCA_TDF_MODULE(dac)
+{
+protected:
+  const double V_MAX = static_cast<double>(VMAX) / static_cast<double>(VU);
+  const double V_MIN = static_cast<double>(VMIN) / static_cast<double>(VU);
+  const double MAX_DIG = static_cast<double>((1 << BITS) - 1);
+public:
+  sca_tdf::sca_in<sc_dt::sc_uint<BITS> > in;
+  sca_tdf::sca_out<double> out;
+
+  SCA_CTOR(dac) : in("in"), out("out") {
+    set_timestep(sca_core::sca_time(0.1, sc_core::SC_US));
+  }
+
+  void processing()
+  {
+    double dig_in = static_cast<double>(this->in.read().to_uint());
+    double ana_out = V_MIN + (dig_in / MAX_DIG) * (V_MAX - V_MIN);
+
+    this->out.write(ana_out);
+  }
+};
+#endif // IPS_DAC_MODEL_HPP

modules/dac/include/test_dac.hpp

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+#ifndef IPS_TEST_DAC_HPP
+#define IPS_TEST_DAC_HPP
+
+#include <cstdlib>
+
+
+template <unsigned int N>
+SCA_TDF_MODULE(test_dac) {
+public:
+  sca_tdf::sca_out<sc_dt::sc_uint<N> > o_dig;
+
+  SCA_CTOR(test_dac) {
+    set_timestep(sca_core::sca_time(0.1, sc_core::SC_US));
+  }
+
+  void processing()
+  {
+    this->o_dig.write(static_cast<sc_dt::sc_uint<N> >(rand() % (1 << N)));
+  }
+};
+
+#endif // IPS_TEST_DAC_HPP

modules/dac/src/tb_dac.cpp

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+#include <systemc-ams.h>
+#include "dac.hpp"
+#include "test_dac.hpp"
+
+#define N 8
+
+
+int sc_main(int, char*[])
+{
+  sca_tdf::sca_signal<sc_dt::sc_uint<N> > s_dig;
+  sca_tdf::sca_signal<double> s_ana_out;
+
+  const int MAX_ITER = (1 << N) - 1;
+
+  dac<N> ips_dac("ips_dac");
+  ips_dac.in(s_dig);
+  ips_dac.out(s_ana_out);
+
+  test_dac<N> ips_test_dac("ips_test_dac");
+  ips_test_dac.o_dig(s_dig);
+
+  sca_util::sca_trace_file* tf = sca_util::sca_create_vcd_trace_file("ips_dac");
+  sca_util::sca_trace(tf, s_dig, "in");
+  sca_util::sca_trace(tf, s_ana_out, "out");
+
+  sc_start(MAX_ITER * 0.1, SC_US);
+
+  sca_util::sca_close_vcd_trace_file(tf);
+
+  return 0;
+};

modules/utils/include/vunit.hpp

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+#ifndef IPS_VUnit_HPP
+#define IPS_VUnit_HPP
+
+enum class VUnit {
+  v = 1,
+  mv = 1000,
+  uv = 1000000,
+};
+
+#endif // IPS_VUnit_HPP