• problem with timer0 isr on a phisical board
    Hello I need to do a simple program that blinks a LED located on pin 3.4 on a winbond w78c438c. In a uvision simulation everything goes ok...but when I try it on the actual board nothing happenes...
  • problem with timer0 isr on a phisical board
    Hello I need to do a simple program that blinks a LED located on pin 3.4 on a winbond w78c438c. In a uvision simulation everything goes ok...but when I try it on the actual board nothing happenes...
  • Strange Compiler behaviour
    Hello, I have to migrate from one type LCD to another. So, I cloned the project for the new LCD type. The problem is that almost identical code(software SPI) is compiled in very different manner. ...
  • Strange Float Behaviour
    Guys, I am having a problem with float division using PK51. I was wondering if anyone could explain this or has seen it before. I have a float, and want to divide it by 36000. If I do this directly...
  • strange interrupt behaviour
    Hopefully someone can give me a tip. I'm completely lost on what's happening. I have the following problem. Using a 87C51RC processor I'm using 2 timers with interrupt, Serial comm with interrupt and...