strncmp and uart

[kang99]

hi, I'm not working the command "strncmp" on string assembled from RS232, I do not recognize the string "get"

Code: Select all

void interrupt()
     {
     if (PIR1.RCIF == 1)
             {
             PIR1.RCIF = 0 ;
             uart_rd = UART1_Read();
             if (uart_rd == 13)
                   {
                   PORTB.B4 = ~PORTB.B4 ;                    //activity 1 green ok
                   if (strncmp(testo,"get",3) == 0)
                          {
                          PORTB.B6 = ~PORTB.B6 ;             //activity 2 yellow kkkko!
                          }
                   }
                   else
                   {
                   testo[puntatore] = uart_rd ; puntatore++ ;        //accumula input da key computer
                   }
             }
      }

I created two tests to monitor the operational, in the first passes when I do "Enter" in the second never why ?

[drdoug]

I think we might need to see more code.
Also, can you explain again the problem?

[Mince-n-Tatties]

you will have to look at your array testo to see if it holds the string as you expect.