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Binary output problem

 
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art



Joined: 21 May 2015
Posts: 181

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Binary output problem
PostPosted: Fri Jan 15, 2016 8:43 pm     Reply with quote
Hai, I would like to send a 16 bit binary string to output B(8bit) and D(8bit). When I send '1111000000110011' why output B and D show '00110011'. I need output B '11110000' and output D'00110011'. How to solve this?

Code:

#include <16F887.h>
 #fuses INTRC_IO, NOWDT
 #use delay(clock=4M)
 #use rs232(baud=9600, UART1, ERRORS)

 #include <stdlib.h>
 #include <input.c>
 #include <string.h>

 int16 binary_string[18];

 //======================
 void main()     
 {
    while (TRUE)
    {
       printf("Enter number:  \n");
       get_string(binary_string,17);
     
       output_B((int8)strtoul(binary_string,0,2));
       output_D((int8)strtoul(binary_string,0,2));

    }
 }
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Jan 15, 2016 8:56 pm     Reply with quote
You want a way to get the msb of a 16-bit word. Read about the make8()
function in the CCS manual.
http://www.ccsinfo.com/downloads/ccs_c_manual.pdf
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