• Circuitry on AT89c52 and AT89c2051 serial interface
    Hi I've implemented a simple program to see serial interface between two AT89c52. But now i need to interface AT89c52 with AT89c2051 serial interface. Could you please help me with a circuit diagram...
  • Pin reading Problem with at89c2051
    i use at89c2051 micro controller there is a problem with reading the pin value after declaring pin 1(input pin)......controller gives wrong execution... i already declare pin as a input pin i also...
  • AT89C2051, ADC, Microcontroller,
    Hello, I am a student and currently working with AT89C2051. I'm new to this microcontroller. I,m using it in a circuit in which I need to compare a variable analog input to reference voltage using analog...
  • Help Needed For AT89C2051
    Hi to all, I am an advanced sortware engineer specialising in c compiler programs. By a guided book of " Projects in C for U" . I am building my latest project but I am having errors. I have tried attach...
  • Implementing a second RS232 for C51 (At89C2051) ?
    Hallo all, maybe someone can help me. I must have 2 RS232 Ports on my atmel x51 controler, but on the web you only can find examples in ASM, and i have big Problems to call an ASM routine from my...