hi sir i need one help now iam doing project on 89c51 using C51 Evaluation Software i converted 0-5 analog volatge to 0-5 digital voltage . now i want convert digital data to pressure my output should be like this 0v 1.1E-1 3v 4.1E-4 0.1 1.2E-1 4v 5.1E-5 1v 2.1E-2 5v 6.1E-6 2v 3.1E-3 i want 500 values in between 0 to 5 volts how to calibrate the voltage interms of preesure what logic i want use to convert Voltage to pressure my C51 not taking floting oparations please help regards chandra sri
Stop! Now!! You are struggling with absolutely basic concepts of both 'C' programming and, apparently, the hardware itself. You seriously need to set this project aside, go back to basics, and get a proper understanding in the 'C' Language Get yourself a good book, and study it: http://www.keil.com/books/8051books.asp http://www.8052.com/books.phtml "my doubt is PORT 1 well takes only 1 byte (8bits) ... i am using seven numbers 7segment LED display" Sure, all the 8051's ports are 8 bits (1 byte) wide. So how have you connected seven 7-Segment digits to your 8051? Obviously, the way you write stuff to the display will depend entirely on how it is connected to the 8051!!