STC89LE53RC datasheet(25/165 Pages) STC

25 / 165 page

An example program for internal expanded RAM demo of STC89C58RD+:

;/*------------------------------------------------------------------*/

;/* --- STC MCU International Limited -------------------------------*/

;/* --- STC89xx Series MCU internal expanded RAM Demo -----------------------*/

;/* If you want to use the program or the program referenced in the */

;/* article, please specify in which data and procedures from STC */

;/*------------------------------------------------------------------*/

#include<reg52.h>

#include<intrins.h>

/* use _nop_( ) function */

sfr

AUXR

= 0x8e;

sfr

AUXR1 = 0xa2;

sfr

= 0xe8;

sfr

XICON = 0xc0;

sfr

IPH

= 0xb7;

sfr

WDT_CONTR = 0xe1;

sfr

ISP_DATA

= 0xe2;

sfr

ISP_ADDRH = 0xe3;

sfr

ISP_ADDRL = 0xe4;

sfr

ISP_CMD

= 0xe5;

sfr

ISP_TRIG

= 0xe6;

sfr

ISP_CONTR

= 0xe7;

sbit

ERROM_LED = P1^5;

sbit

OK_LED = P1^7;

void main ( )

{

unsigned int array_point = 0;

/*Test-array: Test_array_one[512], Test_array_two[512] */

unsigned char xdata Test_array_one[512] =

{

0x00,

0x01

0x02,

0x03,

0x04

0x05,

0x06,

0x07,

0x08,

0x09,

0x0a,

0x0b,

0x0c,

0x0d,

0x0e,

0x0f,

0x10,

0x11,

0x12,

0x13,

0x14,

0x15,

0x16,

0x17,

0x18,

0x19,

0x1a,

0x1b,

0x1c,

0x1d,

0x1e,

0x1f,

0x20,

0x21,

0x22,

0x23,

0x24,

0x25,

0x26,

0x27,

0x28,

0x29,

0x2a,

0x2b,

0x2c,

0x2d,

0x2e,

0x2f,

0x30,

0x31,

0x32,

0x33,

0x34,

0x35,

0x36,

0x37,

0x38,

0x39,

0x3a,

0x3b,

0x3c,

0x3d,

0x3e,

0x3f

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