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Timing Generation
Posted:
Fri Oct 05, 2018 9:56 amby LED
Hello
in pic micro controller what is timing generation how it generate perfect time
Re: Timing Generation
Posted:
Fri Oct 05, 2018 10:33 amby ric
Which PIC microcontroller?
"Timing generation" generally refers to the instruction clock, which can be anything from 500kHz to 200MHz, depending upon device.
What do you mean by "perfect time"?
I suspect you are thinking about a "real time clock", which is NOT present in most PICs.
Re: Timing Generation
Posted:
Fri Oct 05, 2018 10:59 amby LED
Hello
pic16f877a
Re: Timing Generation
Posted:
Fri Oct 05, 2018 11:06 amby ric
Answering only one of several questions is not going to get you any help.
Re: Timing Generation
Posted:
Fri Oct 05, 2018 11:12 amby LED
Which PIC microcontroller?
"Timing generation" generally refers to the instruction clock, which can be anything from 500kHz to 200MHz, depending upon device.
What do you mean by "perfect time"?
I suspect you are thinking about a "real time clock", which is NOT present in most PICs.
hELLO
I WILL use example 20MHZ or 80mhz
i want to know how 20mhz frequency is generated to low frequency
Re: Timing Generation
Posted:
Fri Oct 05, 2018 11:15 amby ric
If you connect a 20MHz crystal to your PIC16F877, then it will execute instructions at 1/4 of this frequency, i.e. 5MHz, and this is also available to clock the internal peripherals like the timers.
It is not at all clear what you mean by "generated to low frequency".
Do you have ANY idea about electronics and microprocessors at all? Your questions are just nonsense.
Re: Timing Generation
Posted:
Fri Oct 05, 2018 11:56 amby LED
If you connect a 20MHz crystal to your PIC16F877, then it will execute instructions at 1/4 of this frequency, i.e. 5MHz, and this is also available to clock the internal peripherals like the timers.
It is not at all clear what you mean by "generated to low frequency".
Do you have ANY idea about electronics and microprocessors at all?
Hello
How 20mhz is quarter 1/4 the waveform to 5mhz
and 200mhz= 50mhz
500khz=125khz
1mhz=250khz
100mhz=25mhz
150mhz=37.5mhz
180mhz=45mhz
120mhz=30mhz
90mhz=22.5mhz
Re: Timing Generation
Posted:
Fri Oct 05, 2018 11:59 amby LED
How to get more than 200mhz or 50mhz in pic for building radio tv computer
Re: Timing Generation
Posted:
Fri Oct 05, 2018 12:06 pmby ric
LED wrote:How 20mhz is quarter 1/4 the waveform to 5mhz
What?
20/4=5.
You do understand division don't you?
(And do NOT use "mhz" when you mean "MHz". They are not the same)
and 200mhz= 50mhz
500khz=125khz
1mhz=250khz
100mhz=25mhz
150mhz=37.5mhz
180mhz=45mhz
120mhz=30mhz
90mhz=22.5mhz
What are you going on about now?
Re: Timing Generation
Posted:
Fri Oct 05, 2018 12:09 pmby ric
LED wrote:How to get more than 200mhz or 50mhz in pic for building radio tv computer
You certainly can't do it with a PIC16F877.
I strongly suggest you go and learn some basic electronics. You're just asking stupid question.