Only for mbed LPC1768, mbed LPC1114FN28, Nucleo-F401 and Nucleo-F411. No way to change pin assign.

Dependencies:   freq_counter TextLCD

Fork of 5MHzOSC by fuyuno sakura

Please refer following page.
http://developer.mbed.org/users/kenjiArai/notebook/simple-frequency-counter/
/users/kenjiArai/notebook/frequency-counters/

Revision:
9:0b84a8ce225a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/check_revision.cpp	Tue Aug 04 03:59:57 2020 +0000
@@ -0,0 +1,27 @@
+/*
+ * Check Mbed revision
+ *
+ * Copyright (c) 2019,'20 Kenji Arai / JH1PJL
+ *  http://www7b.biglobe.ne.jp/~kenjia/
+ *  https://os.mbed.com/users/kenjiArai/
+ *      Created:    July      17th, 2019
+ *      Revised:    August     1st, 2020
+ */
+
+#include "mbed.h"
+ 
+//    RUN ONLY ON mbed-os-6.2.0
+//      https://github.com/ARMmbed/mbed-os/releases/tag/mbed-os-6.2.0
+#if (MBED_MAJOR_VERSION == 6) &&\
+    (MBED_MINOR_VERSION == 2) &&\
+    (MBED_PATCH_VERSION == 0)
+#else
+#   error "Please use mbed-os-6.2.0"
+#endif
+
+void print_revision(void)
+{
+    printf("MBED_MAJOR_VERSION = %d, ", MBED_MAJOR_VERSION);
+    printf("MINOR = %d, ", MBED_MINOR_VERSION);
+    printf("PATCH = %d\r\n", MBED_PATCH_VERSION);
+}