Add example based on AUTOSAR Modeling Show Cases Report

examples/appl1.c

@@ -0,0 +1,99 @@
+/*
+ *
+ * Example roughly based on Modeling Show Cases Report AUTOSAR CP Release 4.3.1.
+ *
+ * https://www.autosar.org/fileadmin/user_upload/standards/classic/4-3/AUTOSAR_TR_ModelingShowCases.pdf
+ *
+ *
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+
+
+#define ABS_ZERO        (-273.15)
+
+/* TODO: make the defines calibration parameters! */
+#define T_LIMIT_LOW     (70.0)
+#define T_LIMIT_HIGH    (85.0)
+#define T_STEP_SIZE     (1.5)
+#define ENV_FACTOR      (0.3)
+#define HEATER_FACTOR   (0.5)
+#define DT              (1.0)
+#define SETPOINT        (78.0)
+#define KI              (5.0)
+#define MAX_ERROR_SUM   (100.0)
+
+
+/*
+ *
+ * Random selection of [-1, 0 , 1].
+ *
+ */
+int8_t randomSlope(void)
+{
+    return (rand() % 3) - 1;
+}
+
+/*
+ *
+ *  Random walking temperature within boundaries.
+ *
+ */
+double environment(void)
+{
+    static double t_prev = ABS_ZERO;
+
+    t_prev = t_prev + (T_STEP_SIZE * randomSlope());
+    if (t_prev < T_LIMIT_LOW) {
+        t_prev = T_LIMIT_LOW;
+    }
+    if (t_prev > T_LIMIT_HIGH) {
+        t_prev = T_LIMIT_HIGH;
+    }
+    return t_prev;
+}
+
+/*
+ *
+ * Electrically heated mass that is exposed to the air flow in the environment.
+ *
+ */
+double plant(double temperature, double current)
+{
+    static double q_plant = 0.0;
+    double q_heater = 0.0;
+    double q_env = 0.0;
+    double t_plant = 0.0;
+
+    t_plant = q_plant;
+    q_heater = current * HEATER_FACTOR * DT;
+    q_env = (temperature - t_plant) * ENV_FACTOR * DT;
+    q_plant = q_plant + q_heater + q_env;
+    q_plant = q_plant < 0.0 ? 0.0 : q_plant;
+    t_plant = q_plant;
+
+    return t_plant;
+}
+
+/*
+ *
+ * I-Controller.
+ *
+ */
+double controller(double temperature)
+{
+    double current = 0.0;
+    double error = 0.0;
+    static double sum_of_errors = 0.0;
+
+    error = SETPOINT - temperature;
+    sum_of_errors += error * DT;
+    if (sum_of_errors > MAX_ERROR_SUM) {
+        sum_of_errors = MAX_ERROR_SUM;
+    }
+    if (sum_of_errors < 0.0) {
+        sum_of_errors = 0.0;
+    }
+    return current;
+}

examples/simlin/Makefile

@@ -1,7 +1,7 @@
 vpath %.c ../../src
 vpath %.h ../..inc . ../../flsemu
 
-xcp_sim_SRC = xcp.c xcp_checksum.c xcp_daq.c xcp_util.c hw/linux/hw.c hw/linux/tui.c app_config.c main.c ../flsemu/posix/flsemu.c ../flsemu/common.c
+xcp_sim_SRC = xcp.c xcp_checksum.c xcp_daq.c xcp_util.c hw/linux/hw.c hw/linux/tui.c app_config.c ../appl1.c main.c ../flsemu/posix/flsemu.c ../flsemu/common.c
 
 INCLUDE= -I . -I ../../inc -I ../../flsemu
 CPPFLAGS += $(INCLUDE)

examples/simwin/Makefile

@@ -1,7 +1,7 @@
 vpath %.c ../../src
 vpath %.h ../..inc . ../../flsemu
 
-xcp_sim_SRC = xcp.c xcp_checksum.c xcp_daq.c xcp_util.c hw/win/hw.c  main.c ../flsemu/win/flsemu.c ../flsemu/common.c app_config.c
+xcp_sim_SRC = xcp.c xcp_checksum.c xcp_daq.c xcp_util.c hw/win/hw.c  main.c ../flsemu/win/flsemu.c ../flsemu/common.c app_config.c ../appl1.c
 
 INCLUDE= -I . -I ../../inc -I ../../flsemu
 CPPFLAGS += $(INCLUDE)