• p89lpc931 isp programming issue
    I am using p89lpc931 in our board. I have the ISP circuit on our board exactly as it is on keil MCB 900 board. I am using flashmagic tool 6.80 version. I get auto-baud error all the time, and I have...
  • IO control for P89LPC931 with MCB900 Evaluation Board
    Question: I have set P0.1-P0.7 as output . P1.6 as start button , P1.6 as Tip On , how can i program in C language ? and how the program wait for the signal from P1.7 and P1.6? below are the...
  • RAM management and access
    I am developing an application for the AT89S53 in C. while trying to define a CHAR array in size bigger then 128 Byte i got a compilation ERROR. i allready read the "Data Memory - RAM" section in the...
  • External Ram Accessing
    CAN ANY ONE TELL ME HOW TO READ AND WRITE EXTERNAL RAM I AM USING C LANGUAGE WITH KEIL EDITOR PLEASE DONT GO IN HARDWARE DETAIL... JUST GIVE MW L.O.C. THANKYOU
  • No expanded RAM access with P89V664
    I am unable to access expanded RAM, despite the following: I set AUXR to 2 during startup; PSEN is tied high; all expanded RAM access is via DPTR. Nonetheless, using my little LCD program,...