Hello Friends, I am a new user of 89C51 microcontroller, I am having problem with writing program for external interrupts in C51. I have studied the mannuals of C51 and searched on net but failed to get any idea about it. Please help me in this cotext as I am in desprate need these days. With Best regards, Jahanzeb Rajput
I am a new user of 89C51 microcontroller Stop what you are doing, read "the bible" and then you will, at least, have an idea what you are doing. Erik here are the links to "the bible" Chapter 1 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_ARCH_1.pdf chapter 2 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_PROG_GUIDE_1.pdf chapter 3 http://www.semiconductors.philips.com/acrobat/various/80C51_FAM_HARDWARE_1.pdf