Fixed PID roc2Thr param names/ added them to controldemo.

apps/controllib/fixedwing.cpp

@@ -158,7 +158,7 @@ BlockMultiModeBacksideAutopilot::BlockMultiModeBacksideAutopilot(SuperBlock *par
 
 	// altitude/roc hold
 	_h2Thr(this, "H2THR"),
-	_roc2Thr(this, "H2THR"),
+	_roc2Thr(this, "ROC2THR"),
 
 	// guidance block
 	_guide(this, ""),

apps/examples/control_demo/params.c

@@ -58,7 +58,14 @@ PARAM_DEFINE_FLOAT(FWB_V_MAX, 16.0f);       // maximum commanded velocity
 
 // rate of climb
 // this is what rate of climb is commanded (in m/s) 
-// when the throttle stick is fully defelcted in simple mode
+// when the pitch stick is fully defelcted in simple mode
 PARAM_DEFINE_FLOAT(FWB_ROC_MAX, 1.0f);
 
+//  rate of climb -> thr
+PARAM_DEFINE_FLOAT(FWB_ROC2THR_P, 0.01f);     // altitude to throttle PID
+PARAM_DEFINE_FLOAT(FWB_ROC2THR_I, 0.0f);
+PARAM_DEFINE_FLOAT(FWB_ROC2THR_D, 0.0f);
+PARAM_DEFINE_FLOAT(FWB_ROC2THR_D_LP, 0.0f);
+PARAM_DEFINE_FLOAT(FWB_ROC2THR_I_MAX, 0.0f);
+
 PARAM_DEFINE_FLOAT(FWB_TRIM_THR, 0.8f);     // trim throttle (0,1)