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based use xdate (ADUC 812)

i'm using AnalogDevicesuC 812.
If i'm don't mistake, I have an external memory on this ev. board.
I try do based use in this xdata but don't succsess.

memcpy (data_buffer, "DATA Buffer....", sizeof (data_buffer));
memcpy (xdata_buffer, "XDATA Buffer....", sizeof (xdata_buffer));
printf(data_buffer);
printf(xdata_buffer);

data_buffer has been ok, but xdata_buffer printed garbage...

maybe I need do some change in my ADuC812 board or do a change in keil propities?

Parents

0 elhanan sender over 19 years ago in reply to HansBernhard Broeker

/************* Header files ****************************************************/
#include "ADuC812_1.H"                                                // Header file for the ADuC812 MCU
#include <STDIO.H>                                                        // Standard I/O header file
#include <STRING.H>

unsigned char xdata xdata_buffer [16] _at_ 0x0200;
unsigned char data  data_buffer  [16] _at_ 0x60;

int num;
unsigned char interupt1 = 0;


void initialize_system (void);

void ex0_isr (void) interrupt 0 {
        interupt1 = 1;
}

/************* MAIN C Function *************************************************/
void main (void)
{
        //flash_erase_all ();
        initialize_system();    // apply start setting for connect with HyperTerminal

        num = 3;
        memcpy (data_buffer, "DATA Buffer....", sizeof (data_buffer));
        memcpy (xdata_buffer, "XDATA Buffer....", sizeof (xdata_buffer));
        while (1)
        {
                if(interupt1==1){

                        printf("a");
                        num++;
                        printf("%d", num);
                        if(num%2==0){
                                LED ^= -1;
                        }

                        interupt1=0;
                        printf(data_buffer);
                        printf(xdata_buffer);
                }

        }
}


void initialize_system (void)
{
                                                                                        // Initialize the serial port (9600, 8, N, 1) [see page 32 of data sheet]
        PCON &= 0x7F;                                                       // Clear bit 7 of the PCON register (SMOD1 = 0)
        SCON = 0x50;                                                    // 0101,0000 (Mode 1 and RxD enable)
        TMOD |= 0x20;                                                   // Timer #1 in autoreload 8 bit mode
        TCON = 0x40;                                                    // Set Timer #1 to run mode
        TH1 = 0xFA;                                                             // Baud rate is determined by
                                                                                        // Timer #1 overflow rate
                                                                                        // Baud Rate = (Fcpu / 384) / (256 - TH1)
                                                                                        // Fcpu = 11.0592 MHz
                                                                                        // TH1 = FD = 253 -> Baud Rate = 9600
                                                                                        // TH1 = FA = 250 -> Baud Rate = 4800
        TR1 = 1;                                                                // Turn on Timer 1
        TI = 1;                                                                 // Set UART to send first char


        IT0 = 1;   // Configure interrupt 0 for falling edge on /INT0 (P3.2)
        EX0 = 1;   // Enable EX0 Interrupt
        EA = 1;    // Enable Global Interrupt Flag

        return;
}

Terminal Export:
a4DATA Buffer...garbage
a5DATA Buffer...garbage
a6DATA Buffer...garbage
. .
.

Reply

0 elhanan sender over 19 years ago in reply to HansBernhard Broeker

/************* Header files ****************************************************/
#include "ADuC812_1.H"                                                // Header file for the ADuC812 MCU
#include <STDIO.H>                                                        // Standard I/O header file
#include <STRING.H>

unsigned char xdata xdata_buffer [16] _at_ 0x0200;
unsigned char data  data_buffer  [16] _at_ 0x60;

int num;
unsigned char interupt1 = 0;


void initialize_system (void);

void ex0_isr (void) interrupt 0 {
        interupt1 = 1;
}

/************* MAIN C Function *************************************************/
void main (void)
{
        //flash_erase_all ();
        initialize_system();    // apply start setting for connect with HyperTerminal

        num = 3;
        memcpy (data_buffer, "DATA Buffer....", sizeof (data_buffer));
        memcpy (xdata_buffer, "XDATA Buffer....", sizeof (xdata_buffer));
        while (1)
        {
                if(interupt1==1){

                        printf("a");
                        num++;
                        printf("%d", num);
                        if(num%2==0){
                                LED ^= -1;
                        }

                        interupt1=0;
                        printf(data_buffer);
                        printf(xdata_buffer);
                }

        }
}


void initialize_system (void)
{
                                                                                        // Initialize the serial port (9600, 8, N, 1) [see page 32 of data sheet]
        PCON &= 0x7F;                                                       // Clear bit 7 of the PCON register (SMOD1 = 0)
        SCON = 0x50;                                                    // 0101,0000 (Mode 1 and RxD enable)
        TMOD |= 0x20;                                                   // Timer #1 in autoreload 8 bit mode
        TCON = 0x40;                                                    // Set Timer #1 to run mode
        TH1 = 0xFA;                                                             // Baud rate is determined by
                                                                                        // Timer #1 overflow rate
                                                                                        // Baud Rate = (Fcpu / 384) / (256 - TH1)
                                                                                        // Fcpu = 11.0592 MHz
                                                                                        // TH1 = FD = 253 -> Baud Rate = 9600
                                                                                        // TH1 = FA = 250 -> Baud Rate = 4800
        TR1 = 1;                                                                // Turn on Timer 1
        TI = 1;                                                                 // Set UART to send first char


        IT0 = 1;   // Configure interrupt 0 for falling edge on /INT0 (P3.2)
        EX0 = 1;   // Enable EX0 Interrupt
        EA = 1;    // Enable Global Interrupt Flag

        return;
}

Terminal Export:
a4DATA Buffer...garbage
a5DATA Buffer...garbage
a6DATA Buffer...garbage
. .
.

Children

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