i need explain about clock source approaches like achieve 1 sec or 1m sec

[faresfares]

hi

please i need some one explain to me the methods of implement source clock to achieve particular delay (like 1 sec for example) and comparison between them and if there any pictures or diagram or any thing

i heared about interrupt and counte

thank u all

 

[SPIZERO]

It is very simple.
Example:
if you have 50MHz master clock then 50,000,000 cycles of your master clock is 1 sec.

Here is tutorial.
f = 50MHz = 50,000,000.
T = 1/50,000,000 = 20 nanosec.
number_of_cycles = 1sec / 20 nanosec = 50,000,000 cycles.

same to 1ms
number_of_cycles = 1msec / 20 nanosec = 50,000 cycles.

Try it! Goodluck