• Problem with Serial I/O - S0BUF remains empty
    Hello, I'm trying to write a Function that reads a character from RS232 (trival?). I'm using 80c552, Serial_Mode=1. I think the baudrate is set correct (I can transmit data to the PC). The Problem...
  • Prepaid Energy Meter (Read REad REAd READ)
    Hello Anybody can Help me to find a MCS51 based Pre-paid Energy meter THIS IS VERY URGENT! shibuv
  • 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...
  • Problem reading AD with upsd3354
    I try to read ADC0 to 4 with a upsd3354, but the voltage at the pins P1.0 to 4 (measured with a scope) is always 3V3, and the readed value is 1023. P1SFS0 and P1SFS1 are equal to 0x1f, to put this...
  • rtc reading interrupt problem
    i have same problem( as wrote bellow ), previously discussed in this forum. but this solution couldnt solve my problem. i2c communication works but when interrupt( from rtc) active, i2c communication...