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store data in C lang..

Hi everyone,

I've some problem storing the data in register on C lang. My SBUF was stored with some data and i want to view what data was inside. I want to store my SBUF value into R0 but i not sure how to write the code in C lang.

I know that in asembly lang, it was MOV R0, #01H<<<<<example

Can anyone help me on this? Thanks alot

Parents

0 MJ Tjew over 14 years ago in reply to Andy Neil

Sorry, i will look clearly on the preview before i post out.
Here you go.

#include<f200.h>
#include <stdio.h>
#define RS P15
#define RW P16
#define E P17

sfr16 RCAP2 = 0xCA; // Timer2 capture/reload
sfr16 TMR2 = 0xCC; // Timer2

#define BAUDRATE 9600 // Baud rate of UART in bps
#define SYSCLK 110592000L // SYSCLK in Hz

void PORT_Init (void);
void UART0_Init (void);
unsigned char RX_Ready =0;

void delay(unsigned long duration)
{
        while((duration--)!=0);
}

void setSystem();

void strobe(unsigned char lcd_data)
{
        E=1;
        delay(150);
        E=0;
        delay(150);
}

void LCD_init()
{
  unsigned char x;

  for (x=0;x<3;x++)
   {
       P3=0x30;
       RS=0;
       RW=0;
       strobe();
       delay(1500);
    }
       P3=0x38;
       strobe();
       P3=0x0c;
       strobe();
       P3=0x01;
       strobe();
       P3=0x02;
       strobe();
}

//----- LCD Character Print routine --------

void LCD_Print(unsigned char x)
{
        P3 = x;
        RS = 1;
        RW=0;
        E=1;
        strobe(0x01);
}

//----- LCD Command ----------

void lcdCommand(unsigned char x){
        P3 = x;
        RS = 0;
        RW=0;
        strobe(0x01);
}

void PORT_Init (void)
{
   PRT0MX = 0x01;                      // Enable UART0
   PRT2MX = 0x80;                      // Enable global weak pull-up
   PRT0CF = 0x02;                      // RX is push-pull
}

void UART0_Init (void)
{
   CKCON = 0x20;                       // Timer2 uses the system clock
   T2CON = 0x34;                       // Timer2 used for TX and RX, enabled
   RCAP2 = - ((long) (SYSCLK/BAUDRATE)/32);
   TMR2 = RCAP2;
   TR2= 1;                             // Start Timer2
   SCON = 0x50;                        // 8-bit variable baud rate;
   RX_Ready = 0;                       // Flag showing that UART can receive
   ES  = 1;
}

void main()
{
        unsigned char x;
        unsigned char mybyte;
        unsigned char getChar;
        x=0;                            // Set as Input

        while(1)
                {
                        LCD_init();
                        lcdCommand(0x01);
                        lcdCommand(0x02);
                        LCD_Print();
                        WDTCN = 0xDE;                       // Disable watchdog timer
                        WDTCN = 0xAD;
                        PORT_Init ();                       // Initialize crossbar and GPIO
                        UART0_Init ();                      // Initialize UART0
                        EA = 1;                                                         //interrupts are enabled
                        mybyte=SBUF;
                        getChar=SBUF;
                        while(RI==0);
                        RI=0;
                }


}








I can't place the LCD_PRINT below PORT_Init (); and UART0_Init (); as it will not appear any character.

So i put a while loop as it will return back and capture the getChar and display but this is not the case.

The LCD_PRINT is working pefectly as i type 0x41 and it will appeared an A in the watch window.




At the moment, i was sending a character 'K' over to the receiver

//getChar=0x4b 'K' on watch window

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