Added us Timer proper host test automation

libraries/tests/mbed/time_us/main.cpp

@@ -18,12 +18,22 @@ DigitalOut out(p5);
 
 DigitalOut led(LED1);
 
-int main() {
+#define MS_INTERVALS 1000
-    printf("Hello World\n");
 
+void print_char(char c = '*')
+{
+    printf("%c", c);
+    fflush(stdout);
+}
+
+int main() {
     while (true) {
-        wait_us(1000);
+        for (int i = 0; i < MS_INTERVALS; i++)
-        out = !out;
+        {
+            wait_us(1000);
+            out = !out;
+        }
         led = !led;
+        print_char();
     }
 }

workspace_tools/host_tests/wait_us_auto.py

@@ -34,17 +34,17 @@ class WaitusTest(DefaultTest):
             c = self.mbed.serial.read(1)
             if i > 2: # we will ignore first few measurements
                 delta = time() - start
-                deviation = abs(delta - 1) 
+                deviation = abs(delta - 1)
                 deviation_ok = True if delta > 0 and deviation <= 0.5 else False # +/-5%
                 test_result = test_result and deviation_ok
                 msg = "OK" if deviation_ok else "FAIL"
-                print ". in %.2f sec (%.2f) [%s]" % (delta, abs(delta - 0.95), msg)
+                print ". in %.2f sec (%.2f) [%s]" % (delta, deviation, msg)
             else:
-                print "."
+                print ". skipped"
             start = time();
         measurement_time = time() - start_serial_pool
         print "Completed in %.2f sec" % (measurement_time)
-        
+
         if test_result: # All numbers are the same
             self.print_result('success')
         else:

workspace_tools/tests.py

@@ -391,6 +391,9 @@ TESTS = [
         "id": "MBED_25", "description": "Time us",
         "source_dir": join(TEST_DIR, "mbed", "time_us"),
         "dependencies": [MBED_LIBRARIES, TEST_MBED_LIB],
+        "duration": 15,
+        "automated": True,
+        "host_test": "wait_us_auto"
     },
     {
         "id": "MBED_26", "description": "Integer constant division",