master <= configurator

example/example_tx.cpp

@@ -3,6 +3,7 @@
  *
  * Original author: David Banas <br>
  * Original date:   May 8, 2015
+ * Initial conversion to EmPy template format: Feb 25, 2016
  *
  * Copyright (c) 2015 David Banas; all rights reserved World wide.
  */
@@ -30,40 +31,56 @@ class MyTx : public AmiTx {
 
         // Grab our parameters and configure things accordingly.
         std::vector<std::string> node_names; node_names.clear();
-        int taps[4], tap_units;
-        node_names.push_back("tx_tap_units");
-        tap_units = get_param_int(node_names, 27);
+        std::ostringstream msg;
+
+        msg << "Initializing Tx...\n";
+
+        int taps[4];
+        int tx_tap_nm2 ;
+        node_names.push_back("tx_tap_nm2");
+        tx_tap_nm2 = get_param_int(node_names, 0 );
+        taps[3] = tx_tap_nm2;
         node_names.pop_back();
-        node_names.push_back("tx_tap_np1");  // pre-tap
-        taps[0] = get_param_int(node_names, 0);
+        int tx_tap_np1 ;
+        node_names.push_back("tx_tap_np1");
+        tx_tap_np1 = get_param_int(node_names, 0 );
+        taps[0] = tx_tap_np1;
         node_names.pop_back();
-        node_names.push_back("tx_tap_nm1");  // post-tap1
-        taps[2] = get_param_int(node_names, 0);
+        int tx_tap_units ;
+        node_names.push_back("tx_tap_units");
+        tx_tap_units = get_param_int(node_names, 27 );
         node_names.pop_back();
-        node_names.push_back("tx_tap_nm2");  // post-tap2
-        taps[3] = get_param_int(node_names, 0);
-        taps[1] = tap_units - 2 * (taps[0] + taps[2] + taps[3]);
+        int tx_tap_nm1 ;
+        node_names.push_back("tx_tap_nm1");
+        tx_tap_nm1 = get_param_int(node_names, 0 );
+        taps[2] = tx_tap_nm1;
+        node_names.pop_back();
+
+        taps[1] = tx_tap_units - 2 * (taps[0] + taps[2] + taps[3]);
+        if (taps[1] < 0)
+            msg << "WARNING: Illegal Tx pre-emphasis tap configuration!\n";
 
         // Fill in params_.
         std::ostringstream params;
         params << "(example_tx";
-        params << " (tap_units " << tap_units << ")";
+        params << " (tx_tap_units " << tx_tap_units << ")";
         params << " (taps[0] " << taps[0] << ")";
         params << " (taps[1] " << taps[1] << ")";
         params << " (taps[2] " << taps[2] << ")";
         params << " (taps[3] " << taps[3] << ")";
+
         tap_weights_.clear();
         int samples_per_bit = int(bit_time / sample_interval);
         int tap_signs[] = {-1, 1, -1, -1};
         have_preemph_ = true;
-        for (auto i = 0; i < 4; i++) {
+        for (auto i = 0; i <= 3; i++) {
             tap_weights_.push_back(taps[i] * TAP_SCALE * tap_signs[i]);
             params << " (tap_weights_[" << i << "] " << tap_weights_.back() << ")";
             for (auto j = 1; j < samples_per_bit; j++)
                 tap_weights_.push_back(0.0);
         }
         param_str_ = params.str() + "\n";
-        msg_ = "Hello, World!";
+        msg_ = msg.str() + "\n";
     }
 } my_tx;