• xdata in 89c52
    Hi Friends, I have a doubt that the xdata declaration is using the memory of 89c52 chip memory itself,or it needs any external memory .I used an array as xdata in 89c52 based project because i have...
  • 89c52 with DS1307
    My name is Rajagopal 70 years old, I knows basic electronics but no experience in current programming. I have purchased a few 7 segment 4 digit with AT89C52, RTC DS1307, 74LS595 (4nos), and ULN 2003...
  • 89C52 interrupt program
    i am using interrupt program to count the number of blocks passing through a sensor on each passing i use the sensor signal as an interrupt and increament the value. on passing of a specified number...
  • Address Space Overflow-89C52
    Hi, I have a made a code for testing a hardware board.The code on compilation generates an error code of L107 Address space overflow.After searching through the KEIL forum I came to know that once you...
  • Interfacing 89C52 to LCD
    Hello Everybody, Is anyone can tell me how to interface a LCD (3&1/2 digit 7 segment LCD)without using a smart controller or any Driver? With Regards, Tayyab.