Diff: main.cpp

Revision:

1:533ef4c5f7ab

Parent:

0:786207d961f4

Child:

2:10add9ee8c4b

diff -r 786207d961f4 -r 533ef4c5f7ab main.cpp
--- a/main.cpp	Fri Mar 13 03:33:26 2015 +0000
+++ b/main.cpp	Sat Mar 21 16:07:17 2015 +0000
@@ -1,58 +1,83 @@
+/**********************************************************************************
+* @file    main.cpp
+* @author  Name
+* @version V0.1
+* @date    09-March-2015
+* @brief   Read value from pins and write it to serial.
+*          It could be set some settings through serial.
+*          Serial speed is set to 115200.
+***********************************************************************************/
+
+/* Includes ----------------------------------------------------------------------*/
 #include "mbed.h"
 
-PortIn myIOs(PortC, 0xFFFF); // PC_all
-
-Serial pc(SERIAL_TX, SERIAL_RX);
-
-Ticker toggle_ticker;
+/* Variables ---------------------------------------------------------------------*/
+int pin =0;             //pins to compare and start print
+int vypis =0;           // which output will be provided
+bool start = true;      // if true it print value to serial
 
-DigitalOut led(LED1);
+//mbed - initialization of peripherals
+PortIn myIOs(PortC, 0xFFFF);        // PC_all
+Serial pc(SERIAL_TX, SERIAL_RX);    // inicialize Serial to connect to PC
+Ticker toggle_ticker;               // inicialize ticker
+DigitalOut led(LED1);               // inicialize LED
+
+/* Functions----------------------------------------------------------------------*/
 
-int pin =0;
-int vypis =0;
-
-bool start = true;
-
+/***********************************************************************************
+* Function Name  : toggle.
+* Description    : Read value from pins, blink with LED and send value to serial.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+***********************************************************************************/
 void toggle()
 {
     int meas,z;
-    meas=myIOs.read();
+    meas=myIOs.read();  // read pins
 
-    led= !led;
-    if (meas == pin ) {
-        start = true;
+    led= !led;          //blink led
+    if (meas == pin ) { // If the value is as we want 
+        start = true;  //start send data to Serial
     }
     if(start) {
-        if(vypis==1) {
+        if(vypis==1) {                      // write value in bin
             while(!pc.writeable());
             for (z =32768; z > 0; z >>= 1) {
                 while(!pc.writeable());
-                printf(((meas & z) == z) ? "1" : "0");
+                pc.printf(((meas & z) == z) ? "1" : "0");
             }
             while(!pc.writeable());
-            printf("\n");
-        } else if(vypis==2) {
+            pc.printf("\n");
+        } else if(vypis==2) {           // write value in decimal
             while(!pc.writeable());
-            printf("%d\n", meas);
-        } else if(vypis==3) {
+            pc.printf("%d\n", meas);
+        } else if(vypis==3) {           // write value in oct
             while(!pc.writeable());
-            printf("%o\n", meas);
-        } else if(vypis==4) {
+            pc.printf("%o\n", meas);
+        } else if(vypis==4) {           // write value in hex
             while(!pc.writeable());
-            printf("%x\n", meas);
-        } else {
+            pc.printf("%x\n", meas);
+        } else {                        // write value in all options
             while(!pc.writeable());
-            printf("DEC: %d, HEX: %x, OCT: %o, BIN: ", meas,meas,meas);
+            pc.printf("DEC: %d, HEX: %x, OCT: %o, BIN: ", meas,meas,meas);
             for (z =32768; z > 0; z >>= 1) {
                 while(!pc.writeable());
-                printf(((meas & z) == z) ? "1" : "0");
+                pc.printf(((meas & z) == z) ? "1" : "0");
             }
             while(!pc.writeable());
-            printf("\n");
+            pc.printf("\n");
         }
     }
 }
 
+/***********************************************************************************
+* Function Name  : flushSerialPort.
+* Description    : Serial flush rountine.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+***********************************************************************************/
 void flushSerialPort()
 {
     while(pc.readable())
@@ -60,60 +85,92 @@
     return;
 }
 
+/***********************************************************************************
+* Function Name  : menu.
+* Description    : Print menu to serial.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+***********************************************************************************/
+void menu()
+{
+    while(!pc.writeable()); // wait to be serial available for sending data
+    pc.printf("HELP - MENU\n");// send text to serial
+    while(!pc.writeable());
+    pc.printf("Data send to PC is in dec format.\n");
+    while(!pc.writeable());
+    pc.printf("Set data exactly.\n");
+    while(!pc.writeable());
+    pc.printf("Write to console: \"xx yy\", where xx is a code of seting and yy his value.\n");
+    while(!pc.writeable());
+    pc.printf("01 y.yyy - set period[s] to send data to PC and start reading value, example:01 0.01\n");
+    while(!pc.writeable());
+    pc.printf("02 0 - stop reading value, example:02 0\n");
+    while(!pc.writeable());
+    pc.printf("03 yyyy - Wait for pin to get to log.1. yyyy write in dec example:03 2000\n");
+    while(!pc.writeable());
+    pc.printf("04 yy - print yy: 00-default all, 01-bin, 02-dec, 03-oct, 04-hex, example:04 00\n");
+    while(!pc.writeable());
+    pc.printf("end HELP\n");
+}
 
+/***********************************************************************************
+* Function Name  : main.
+* Description    : Main routine.
+* Input          : None.
+* Output         : None.
+* Return         : None.
+***********************************************************************************/
 int main()
 {
-    myIOs.mode(PullNone); // PullDown PullUp PullNone OpenDrain
+    myIOs.mode(PullNone); // Modes: PullDown PullUp PullNone OpenDrain
 
-
-
+    // variables to read from serials
     int prijData=0;
     int Data1=0;
     float Data2=0;
+
+    //set serial
     pc.baud(115200);
-    toggle_ticker.detach();
-    toggle_ticker.attach(&toggle, 0.01);
-    printf("\nLogic sond.\n");
+    pc.printf("\nLogic sond.\n");
+    menu(); //print menu
+
+    toggle_ticker.detach();             // do NOT call function
+    toggle_ticker.attach(&toggle, 1);   // 1 second was passed, call function toggle
+
 
     while(1) {
-        prijData=pc.scanf("%d %f",&Data1,&Data2);
-        if(prijData==2) {
-            //pc.printf()
-            if(Data1==1) {
-                toggle_ticker.detach();
-                toggle_ticker.attach(&toggle, Data2);
-            } else if(Data1==2) {
-                toggle_ticker.detach();
-            } else if(Data1==3) {
-                pin=(int)Data2;
-                start = false;
-            } else if(Data1==4) {
-                vypis=(int)Data2;
+        //accepted data from serial
+        prijData=pc.scanf("%d",&Data1);             // read number from serial
+        if(prijData==1 && (Data1>=1 && Data1<=3)) { // test if number was read and it is between 1 and 3
+            prijData=pc.scanf("%f",&Data2);         // read float number from serial
+            if(prijData==1) {
+                prijData=2;         // set variable to set measure of values
+            } else {
+                flushSerialPort();  // iscard data from serial
+                prijData=0;         // set variable to print menu
             }
         } else {
-            toggle_ticker.detach();
+            flushSerialPort();      // discard data from serial
+            prijData=0;             // set variable to print menu
+        }
 
-            while(!pc.writeable());
-            printf("HELP - MENU\n");
-            while(!pc.writeable());
-            printf("Data send to PC is in dec format.\n");
-            while(!pc.writeable());
-            printf("Set data exactly.\n");
-            while(!pc.writeable());
-            printf("Write to console: \"xx yy\", where xx is a code of seting and yy his value.\n");
-            while(!pc.writeable());
-            printf("01 y.yyy - set period[s] to send data to PC and start reading value, example:01 0.01\n");
-            while(!pc.writeable());
-            printf("02 0 - stop reading value, example:02 0\n");
-            while(!pc.writeable());
-            printf("03 yyyy - Wait for pin to get to log.1. yyyy write in dec example:03 2000\n");
-            while(!pc.writeable());
-            printf("04 yy - print yy: 00-default all, 01-bin, 02-dec, 03-oct, 04-hex, example:04 00\n");
-            while(!pc.writeable());
-            printf("end HELP\n");
-            flushSerialPort();
-
+        if(prijData==2) {
+            if(Data1==1) {
+                toggle_ticker.detach();                 // do NOT call function
+                toggle_ticker.attach(&toggle, Data2);   // Data2 seconds was passed, call function toggle
+            } else if(Data1==2) {
+                toggle_ticker.detach();                 // do NOT call function
+            } else if(Data1==3) {
+                pin=(int)Data2;                         //set variables, which are use in toggle
+                start = false;
+            } else if(Data1==4) {
+                vypis=(int)Data2;                       //set variables to set printf, which are use in toggle
+            }
+        } else {
+            toggle_ticker.detach();                     // do NOT call function
+            menu();                                     //print menu
+            flushSerialPort();                          // discard data from serial
         }
-        // wait(0.2); // 200 ms
     }
 }