• pins
    cld anyone please tell me which all are the unused pins in mcb 2140 keil board using lpc 2148
  • PINs current
    hi i m new to microcontrollers and i would like to know that when we make pins as output the IOH voltages are 5V and current is 60 microamp then how the high output can drive a 2SC1815 NPN Transitor...
  • EA Pin
    I know that in order to use the Monitor 51 program, one must use Von Neumann wired Architecture. However for the EA pin, which when low ensures code runs from the internal memory space, and high results...
  • Pin definition
    Can I change a pin definition in an assembler module when program is running? I would add a parameter at my assembler routine but if I do my program will not work because the time of esecution is very...
  • Reading Pins
    Dear All, I've tried to read the pin of Port1 , but i failed . I should write one to it right ? , how do i read a one again ? If i tried to write the following code,it works without checking the...