1 files changed, 150 insertions, 0 deletions
diff --git a/src/tb/directional_coupler_tb.cpp b/src/tb/directional_coupler_tb.cpp
new file mode 100644
index 0000000..1954414
--- /dev/null
+++ b/src/tb/directional_coupler_tb.cpp
@@ -0,0 +1,150 @@
+#include <ctime>
+#include <iomanip>
+#include <tb/directional_coupler_tb.h>
+
+#include "general_utils.h"
+#include "generic_2x2_coupler.h"
+
+void DirectionalCoupler_tb::run_1()
+{
+    IN1->write(OpticalSignal(1.0, 1550e-9));
+    wait(100, SC_MS);
+    IN2->write(OpticalSignal(1.0, 1550e-9));
+    wait(100, SC_MS);
+
+    while (true) { wait(); }
+}
+
+void DirectionalCoupler_tb::monitor()
+{
+    unsigned int event_counter = 0;
+    unsigned int success_counter = 0;
+    const unsigned int test_number = 3;
+
+    while(true)
+    {
+        wait();
+        event_counter++;
+        std::cout << sc_time_stamp() << ":" << std::endl
+            << "\tIN1:  " << IN1->read() << std::endl
+            << "\tIN2:  " << IN2->read() << std::endl
+            << "\tOUT1: " << OUT1->read() << std::endl
+            << "\tOUT2: " << OUT2->read() << std::endl
+            << "\tCOUNT: " << event_counter << std::endl;
+
+        if(event_counter == 2)
+        {
+            if (is_close(norm(OUT1->read().m_field), 0.05, 1e-4) && is_close(norm(OUT2->read().m_field), 0.45, 1e-4))
+                success_counter++;
+            else
+            {
+                std::cout << "-----------------/! \\---------------" << std::endl;
+                std::cout << "Failure!" << std::endl;
+                std::cout << "Expected 0.05W/0.45 as output power!" << std::endl;
+                std::cout << "-----------------/! \\---------------" << std::endl;
+            }
+            if (is_close(arg(OUT2->read().m_field), 1.5708, 1e-4))
+                success_counter++;
+            else
+            {
+                std::cout << "-----------------/! \\---------------" << std::endl;
+                std::cout << "Failure!" << std::endl;
+                std::cout << "Expected pi/2 as phase in OUT2!" << std::endl;
+                std::cout << "-----------------/! \\---------------" << std::endl;
+            }
+        }
+        if(event_counter == 4)
+        {
+            if (is_close(arg(OUT1->read().m_field), 1.2490, 1e-4))
+                success_counter++;
+            else
+            {
+                std::cout << "-----------------/! \\---------------" << std::endl;
+                std::cout << "Failure!" << std::endl;
+                std::cout << "Expected 1.2490 as phase in OUT1!" << std::endl;
+                std::cout << "-----------------/! \\---------------" << std::endl;
+            }
+
+            std::cout << "-----------------/! \\---------------" << std::endl;
+            std::cout << "Test finished!" << std::endl;
+            std::cout << "Success rate: " << success_counter << "/" << test_number << std::endl;
+            std::cout << "-----------------/! \\---------------" << std::endl;
+        }
+    }
+}
+
+void DirectionalCoupler_tb_run()
+{
+    // Apply SPECS resolution before creating any device
+    specsGlobalConfig.applyEngineResolution();
+
+
+    spx::oa_signal_type IN1, IN2, IN3, IN4, OUT1, OUT2;
+    spx::oa_signal_type TERM_r, TERM_w;
+
+    // Unidirectional variant
+    // DirectionalCoupler uut("uut", 0.5, 0);
+    // uut.m_dc_through_coupling_power = 0.1;
+    // uut.m_dc_loss = 3.0103;
+
+    // uut.p_in1(IN1);
+    // uut.p_in2(IN2);
+    // uut.p_out1(OUT1);
+    // uut.p_out2(OUT2);
+
+    // Bidirectional variant
+    DirectionalCouplerBi uut("uut", 0.5, 0);
+    uut.m_dc_through_coupling_power = 0.1;
+    uut.m_dc_loss = 3.0103;
+
+    uut.p0_in(IN1);
+    uut.p0_out(TERM_w);
+    uut.p1_in(IN2);
+    uut.p1_out(TERM_w);
+    uut.p2_in(TERM_r);
+    uut.p2_out(OUT1);
+    uut.p3_in(TERM_r);
+    uut.p3_out(OUT2);
+
+    // Generic bidirectional variant
+    // Generic2x2Coupler uut("uut", 1-0.1, 3.0103);
+    // uut.ports_in[0]->bind(IN1);
+    // uut.ports_in[1]->bind(IN2);
+    // uut.ports_in[2]->bind(TERM_r);
+    // uut.ports_in[3]->bind(TERM_r);
+    // uut.ports_out[0]->bind(TERM_w);
+    // uut.ports_out[1]->bind(TERM_w);
+    // uut.ports_out[2]->bind(OUT1);
+    // uut.ports_out[3]->bind(OUT2);
+
+    DirectionalCoupler_tb tb("tb");
+    tb.IN1(IN1);
+    tb.IN2(IN2);
+    tb.OUT1(OUT1);
+    tb.OUT2(OUT2);
+
+    // Open Trace file
+    std::string trace_filename = "traces/";
+    trace_filename += "directional_coupler_tb";
+    specsGlobalConfig.trace_filename = trace_filename;
+
+    // Apply SPECS options specific to the testbench
+    specsGlobalConfig.simulation_mode = OpticalOutputPortMode::EVENT_DRIVEN;
+    specsGlobalConfig.trace_all_optical_nets = 0;
+
+    Probe probe_dc_1("probe_dc_1",specsGlobalConfig.default_trace_file);
+    probe_dc_1.p_in(OUT1);
+    Probe probe_dc_2("probe_dc_2",specsGlobalConfig.default_trace_file);
+    probe_dc_2.p_in(OUT2);
+
+    // Run SPECS pre-simulation code
+    specsGlobalConfig.prepareSimulation();
+
+    // Start simulation
+    sc_start();
+
+    std::cout << std::endl << std::endl;
+    std::cout << ".vcd trace file: " << specsGlobalConfig.trace_filename << std::endl;
+
+    sc_close_vcd_trace_file(specsGlobalConfig.default_trace_file);
+}