normad
Member
hey i programmed a 16f877a and once i plugged it into my board nothing seems to be happenning.. (sigh) yes ive checked power on both vdds and grounds on vss.. and yes ive connected a pull up to mclre..
my suspicion is on the crystal.. could it be that i burnt it while soldering it? or i may have dropped it once.. theres no way for me to know exactly cause this pic doesnt have an internal clock.. (does it?) can someone point me in the ryt direction to figure out if it is actually the crystal (i dont have access to an oscilloscope)
or could it be something else? im positive i set the configuration bit correctly.. i double checked.. but this is the first time im working with this particular pic
please help.. ive got deadline on monday
thanks in advance
my suspicion is on the crystal.. could it be that i burnt it while soldering it? or i may have dropped it once.. theres no way for me to know exactly cause this pic doesnt have an internal clock.. (does it?) can someone point me in the ryt direction to figure out if it is actually the crystal (i dont have access to an oscilloscope)
or could it be something else? im positive i set the configuration bit correctly.. i double checked.. but this is the first time im working with this particular pic
please help.. ive got deadline on monday
thanks in advance