strange

Hi to all,

when I set break point on portB bit 4 other pins turn on too and 
shift_left doesn't work
I worked on it whole day and I gave up. I appreciate if any one can see 
what I
am doing wrong. I am not sure if what I put together is real SPI 
interface what
I wanted to do is to make spi interface. here is partial code.
I am using 18f452 with mplab ccs plugin

thanks

Andre



#include <18F252.h>  
#device ADC=8
#fuses HS,NOWDT,NOPROTECT,NOLVP
#use delay(clock=4000000)   //
#use rs232(baud=1200, xmit=PIN_C6, rcv=PIN_C7,errors)  //
#define MICROSOFT TRUE
#define MOUSE_SYSTEMS FALSE  
#DEFINE LEFT_BUTTON PIN_B6
#DEFINE RIGHT_BUTTON PIN_B7
#DEFINE X_CHANNEL 0
#DEFINE Y_CHANNEL 1
#define PS2_CLK_OUT   PIN_B4 //
#define PS2_DATA_OUT  PIN_B5 //
#define PS2_CLK_IN  PIN_B1 //
#define PS2_DATA_IN      PIN_B0 //
#define LED    PIN_C3



void ps2_out(BYTE data)
{
      BYTE i;
              
         output_low(PS2_CLK_OUT);  // start bit on
       for(i=1;i<=8;++i)
      {
      output_bit(PS2_DATA_OUT, shift_left(data,1,0));
      output_high(PS2_CLK_OUT);   //  <= I set break point here
      output_low(PS2_CLK_OUT);
      }
      output_low(PS2_DATA_OUT);
      delay_ms(11);
}

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist