Diff: serial.cpp

Revision:

0:4da21a20e2c1

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/serial.cpp	Thu Dec 04 14:17:50 2014 +0000
@@ -0,0 +1,69 @@
+/*
+Copyright (C) 2014  Frank Duignan
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation; either version 2
+of the License, or (at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+
+#include "mbed.h"
+Serial pc(USBTX, USBRX);
+void eputc(const char c)
+{
+    pc.putc(c);
+}
+char egetc()
+{
+    if (pc.readable())
+        return pc.getc();
+    else 
+        return 0;
+}
+void eputs(const char *String)
+{   
+    while(*String)
+    {
+        eputc(*String);
+        String++;
+    }
+}
+
+void printString(const char *String)
+{
+    eputs(String);
+    eputs("\r\n");
+}
+
+char HexDigit(int Value)
+{
+    if ((Value >=0) && (Value < 10))
+        return Value+'0';
+    else 
+        return Value-10 + 'A';
+}
+void printHex(unsigned int Number)
+{
+    // Output the number over the serial port as
+    // as hexadecimal string.
+    char TxString[9];
+    int Index=8;
+    TxString[Index]=0; // terminate the string
+    Index--;
+    while(Index >=0)
+    {
+        TxString[Index]=HexDigit(Number & 0x0f);
+        Number = Number >> 4;
+        Index--;
+    }
+    eputs(TxString);
+}
\ No newline at end of file