Revision 4:5ac470115649, committed 2018-04-08

Comitter:

hyhlik

Date:

Sun Apr 08 14:49:52 2018 +0000

Parent:

3:14dc18aceca9

Commit message:

Demonstration of serial communication

Changed in this revision

diff -r 14dc18aceca9 -r 5ac470115649 main.cpp
--- a/main.cpp	Wed Jun 07 13:16:58 2017 +0000
+++ b/main.cpp	Sun Apr 08 14:49:52 2018 +0000
@@ -1,21 +1,90 @@
 #include "mbed.h"
 
-//------------------------------------
-// Hyperterminal configuration
-// 9600 bauds, 8-bit data, no parity
-//------------------------------------
-
 Serial pc(SERIAL_TX, SERIAL_RX);
+DigitalOut led01(LED1);
 
-DigitalOut myled(LED1);
+int i;          // for cycles
+    char cmd_on[] = "on";
+    char cmd_off[] = "off"; 
+    
+char *getCmd();
+void processCmd(char *cmd);
+
+Thread t1;
 
-int main()
+ ///////////////////////////////////////////////////////////////////////////////
+void tSerial_body()
+{
+    while(1){ 
+        if (pc.readable())     // if there is an character to read from the device
+        {
+            char *SerialCommand = getCmd();
+            processCmd(SerialCommand);
+            free(SerialCommand);
+        }   
+    }    
+}
+ ///////////////////////////////////////////////////////////////////////////////
+char *getCmd()
 {
-    int i = 1;
-    pc.printf("Hello World !\n");
-    while(1) {
-        wait(1);
-        pc.printf("This program runs since %d seconds.\n", i++);
-        myled = !myled;
+    char buff[128];
+    unsigned char ch;
+    int buffIndex = 0;
+    memset(buff, 0, sizeof(buff));          // clean the buffer
+
+
+    char *cmd = (char*)malloc(128);
+    if (!cmd)
+        return NULL;
+    do 
+    {
+        ch = pc.getc();   // read it
+        if (buffIndex < 128){               // just to avoid buffer overflow
+            buff[buffIndex] = ch;  // put it into the value array and increment the index
+            buffIndex++;
+        }
+     }
+     while (ch != '\n' && ch != '\r' );
+     buff[buffIndex]='\0';  // add the end-signalling char
+             
+    if(strlen(buff) != 0){
+        
+        for (i = 0 ; i < sizeof(buff) ; i++){
+            if (buff[i] == '\n' || buff[i] == '\r'){
+                cmd[i] = '\0';
+                return cmd;
+            }
+            cmd[i] = buff[i];                
+        }
+    }  
+    return NULL;  
+}
+ ///////////////////////////////////////////////////////////////////////////////
+void processCmd(char *cmd)
+{
+    pc.printf("rec: \"%s\"\n\r", cmd);
+    if(strcmp(cmd,cmd_on) == 0){
+        led01 = 1;
+        pc.printf("Turning the led on.\n\r");
+    } else if (strcmp(cmd,cmd_off) == 0) {
+        led01 = 0;    
+        pc.printf("Turning the led off.\n\r");
+    
     }
 }
+
+///////////////////////////////////////////////////////////////////////////////
+int main() 
+{
+    t1.start(tSerial_body);
+
+    led01 = 1;
+    
+    pc.printf("\n\r App started______Banik pyco\n\r");
+    int counter = 1;
+    while(1)
+    {   
+        pc.printf("seconds: %d\n\r", counter++);
+        wait(1);
+    }
+}
\ No newline at end of file

diff -r 14dc18aceca9 -r 5ac470115649 mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Sun Apr 08 14:49:52 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#addec7ba10054be03849eff58a1d17f157391e7d

diff -r 14dc18aceca9 -r 5ac470115649 mbed.bld
--- a/mbed.bld	Wed Jun 07 13:16:58 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,1 +0,0 @@
-https://mbed.org/users/mbed_official/code/mbed/builds/86740a56073b
\ No newline at end of file