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: main.cpp

Revision:
0:3588d7473dce
Child:
1:3a59eb72e0cf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Sep 11 12:39:11 2019 +0000
@@ -0,0 +1,19 @@
+#include "mbed.h"
+// Need "target.components_add": ["SD"] in json project file!
+#include "SDBlockDevice.h"
+#include "FATFileSystem.h"
+
+SDBlockDevice sd(p5, p6, p7, p8);
+FATFileSystem fs("SD");
+ 
+int main() {
+    sd.init();
+    fs.mount(&sd);
+ 
+    FILE* fd = fopen("/SD/hi.txt", "w");
+    fprintf(fd, "hello!\n\r");
+    fclose(fd);
+ 
+    sd.deinit();
+    fs.unmount();
+}
\ No newline at end of file