afnan.bashir
Member
Yesterday i saw a board designed using PIC16f877A. They had a regular crystal oscilator of 8 MHZ but below that they had 32khz crystal with 33pf capacitor. now that board was a stopwatch so it has to do something with Time calculations.
First i thought why they had installed two crystals but later exploring it i thought it is for the time calculations. Any hint about it?
Note there was nothing else to calculate time just the rest of controllers pin controlled seven segment.
First i thought why they had installed two crystals but later exploring it i thought it is for the time calculations. Any hint about it?
Note there was nothing else to calculate time just the rest of controllers pin controlled seven segment.