Revision 0:7d01a895b45d, committed 2017-09-19
- Comitter:
- Armand
- Date:
- Tue Sep 19 11:53:38 2017 +0000
- Commit message:
- First publish
Changed in this revision
diff -r 000000000000 -r 7d01a895b45d Comms.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Comms.cpp Tue Sep 19 11:53:38 2017 +0000
@@ -0,0 +1,39 @@
+#include "Comms.h"
+#include "mbed.h"
+
+Comms::Comms(PinName TX, PinName RX) : RawSerial(TX, RX)
+{
+ msg_counter = 0;
+ newmsg = false;
+
+ attach(this, &Comms::commsinterrupt);
+}
+
+void Comms::commsinterrupt()
+{
+ char c = getc(); //read the incoming character
+
+ if(c == '!')
+ {
+ msg_counter = 0;
+ }
+ else if(c == '#')
+ {
+ msg[msg_counter] = '\0';
+ newmsg = true; //enable the new message flag to indicate a COMPLETE message was received
+ msg_counter = 0; //clear the message string
+ }
+ else
+ {
+ msg[msg_counter] = c; //add the character to the message string
+ msg_counter++; //move to the next character in the string
+ }
+
+ if(newmsg == true)
+ {
+ sscanf(msg,"%s %f", &cmd, &data);
+ newmsg = false;
+ }
+}
+
+
\ No newline at end of file
diff -r 000000000000 -r 7d01a895b45d Comms.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Comms.h Tue Sep 19 11:53:38 2017 +0000
@@ -0,0 +1,97 @@
+/* Comms Library for communicating with the bluetooth car. v1.0
+ * Copyright (c) 2017 Armand Coetzer
+ * s213293048@nmmu.ac.za
+ *
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef Comms_H
+#define Comms_H
+
+#include "mbed.h"
+
+/** Class library to create a serial connection from the MCU to the bluetooth device.
+ *
+ * Example:
+ * @code
+ * #include "mbed.h"
+ *#include "Comms.h"
+ *
+ *Comms BT(PC_6, PC_7);
+ *
+ *int main()
+ *{
+ * while(1)
+ * {
+ * if(BT.newmsg == true)
+ * {
+ * BT.printf("%s\n",BT.cmd);
+ * BT. printf("%.2f\n", BT.data);
+ * BT.clrmsg();
+ * }
+ *
+ * }
+ *}
+ * @endcode
+ */
+
+class Comms : public RawSerial{
+ public:
+ /** Create a serial connection from the MCU to the bluetooth device.
+ * @param TX Pin for transmitting data.
+ * @param RX Pin for Receiving data.
+ */
+ Comms(PinName TX, PinName RX);
+
+ // /** changing the boolen variable to false.
+ // * @param
+ // * None
+ // */
+ // void clrmsg();
+
+ /** float variable for storing the speed value.
+ * @param
+ * None
+ */
+ float data;
+
+ /** Character string for storing the direction.
+ * @param
+ * None
+ */
+ char cmd[50];
+
+ /** boolean variable to state if there is a new message or not.
+ * @param
+ * None
+ */
+ bool newmsg;
+
+
+ private:
+
+ void commsinterrupt();
+
+ char msg[50]; //incoming message string
+ int msg_counter; //character position counter in the message string
+
+};
+
+#endif