USBclock 48Mhz, enable serial4 and serial5.

Fork of mbed-src by mbed official

Import programL152RE_serial45_example

NUCLEO-L152RE serial4,5 test program

Revision:
431:255afbe6270c
Parent:
212:34d62c0b2af6
--- a/common/Stream.cpp	Tue Dec 09 14:30:09 2014 +0000
+++ b/common/Stream.cpp	Tue Dec 09 14:45:08 2014 +0000
@@ -24,7 +24,7 @@
     char buf[12]; /* :0x12345678 + null byte */
     std::sprintf(buf, ":%p", this);
     _file = std::fopen(buf, "w+");
-    setbuf(_file, NULL);
+    mbed_set_unbuffered_stream(_file);
 }
 
 Stream::~Stream() {
@@ -41,11 +41,11 @@
 }
 int Stream::getc() {
     fflush(_file);
-    return std::fgetc(_file);
+    return mbed_getc(_file);   
 }
 char* Stream::gets(char *s, int size) {
     fflush(_file);
-    return std::fgets(s,size,_file);
+    return mbed_gets(s,size,_file);
 }
 
 int Stream::close() {