jim hamblen / Mbed OS SD_Card_HelloWorld_Ver5

SD card file helloworld demo using new mbed RTOS ver 5 file driver setup. Pins setup for LPC1768 - read comment in code about project's json file requirements for adding the SD filesystem driver

SD card r/w demo for mbed OS version 5 on LPC1768.

File drivers are added in json file with "target.components_add": ["SD"] for use in most recent OS 5 version.

Test messages are sent to serial port with printf's.

Diff: mbed_app.json

Revision:
0:3588d7473dce
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_app.json	Wed Sep 11 12:39:11 2019 +0000
@@ -0,0 +1,7 @@
+{
+    "target_overrides": {
+        "*": {
+            "target.components_add": ["SD"]
+        }
+    }
+}