Kenji Arai / Mbed OS Change_USBMSD_and_USBSerial

function test USBMSD(as external strage for PC USB) and USBSerial. Switching between USBMSD and USBSerial(Not work simultaneously)

see /users/kenjiArai/notebook/usb-interface--usbhost-and-usbdevice/

Diff: check_revision.cpp

Revision:
0:c6dea1f647f6
Child:
1:7a568319eeb7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/check_revision.cpp	Mon Jan 06 10:56:13 2020 +0000
@@ -0,0 +1,21 @@
+/*
+ * Check Mbed revision
+ *
+ * Copyright (c) 2019 Kenji Arai / JH1PJL
+ *  http://www.page.sannet.ne.jp/kenjia/index.html
+ *  https://os.mbed.com/users/kenjiArai/
+ *      Created:    July      17th, 2019
+ *      Revised:    December  24th, 2019
+ */
+
+#include "mbed.h"
+
+//    RUN ONLY ON mbed-os5.15.0
+//      https://github.com/ARMmbed/mbed-os/releases/tag/mbed-os-5.15.0
+#if (MBED_MAJOR_VERSION == 5) &&\
+    (MBED_MINOR_VERSION == 15) &&\
+    (MBED_PATCH_VERSION == 0)
+#else
+    //#warning "Please use Mbed-os5.15.0"
+    #error "Please use Mbed-os5.15.0"
+#endif
\ No newline at end of file