• C51: Questions regarding SYSCLK
    Hi, i am a student and needs some help. Can someone help solve some of my doubts? Hmm..may i know what does it means by SYSCLK/12/10? How can i go about calculating the timer values using the...
  • C51 : Old program and some question
    Hello I am working in a medical company they give me a program for At89C55wd when i want to debug the project,its message is : error 56 : cant open file what is you opinion about this? and...
  • Question for "<<"
    Hi all I write a sample code like a = 1 << b; when b = 0 , The result for a will get 2 If I uncheck "Enable ANSI integer promotion rules " ,It will get correct answer 1 can anyone tell...
  • c51
    After changing a sbit in bdata Anzeigst ACC must be updated before sending the byte to AnzDaten _at_ 0xff86. For one time it's ok. Second and more acc is not updated. What's wrong ? W. Gehling...
  • c51
    I access the memory of w77e58 on-chip sram, whether it must be through Port P0 and P2 ,or not?