Timing Generation

Say "hi" here, and any general non PIC related chat.

Timing Generation

Postby LED » Fri Oct 05, 2018 9:56 am

Hello
in pic micro controller what is timing generation how it generate perfect time
LED
Banned
 
Posts: 40
Joined: Sat Jul 28, 2018 1:51 pm
PIC experience: EE Student

Re: Timing Generation

Postby ric » Fri Oct 05, 2018 10:33 am

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.
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
User avatar
ric
Verified identity
 
Posts: 659
Joined: Sat May 24, 2014 2:35 pm
Location: Melbourne, Australia
PIC experience: Professional 5+ years with MCHP products

Re: Timing Generation

Postby LED » Fri Oct 05, 2018 10:59 am

Hello
pic16f877a
LED
Banned
 
Posts: 40
Joined: Sat Jul 28, 2018 1:51 pm
PIC experience: EE Student

Re: Timing Generation

Postby ric » Fri Oct 05, 2018 11:06 am

Answering only one of several questions is not going to get you any help.
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
User avatar
ric
Verified identity
 
Posts: 659
Joined: Sat May 24, 2014 2:35 pm
Location: Melbourne, Australia
PIC experience: Professional 5+ years with MCHP products

Re: Timing Generation

Postby LED » Fri Oct 05, 2018 11:12 am

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
LED
Banned
 
Posts: 40
Joined: Sat Jul 28, 2018 1:51 pm
PIC experience: EE Student

Re: Timing Generation

Postby ric » Fri Oct 05, 2018 11:15 am

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.
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
User avatar
ric
Verified identity
 
Posts: 659
Joined: Sat May 24, 2014 2:35 pm
Location: Melbourne, Australia
PIC experience: Professional 5+ years with MCHP products

Re: Timing Generation

Postby LED » Fri Oct 05, 2018 11:56 am

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
LED
Banned
 
Posts: 40
Joined: Sat Jul 28, 2018 1:51 pm
PIC experience: EE Student

Re: Timing Generation

Postby LED » Fri Oct 05, 2018 11:59 am

How to get more than 200mhz or 50mhz in pic for building radio tv computer
LED
Banned
 
Posts: 40
Joined: Sat Jul 28, 2018 1:51 pm
PIC experience: EE Student

Re: Timing Generation

Postby ric » Fri Oct 05, 2018 12:06 pm

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?
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
User avatar
ric
Verified identity
 
Posts: 659
Joined: Sat May 24, 2014 2:35 pm
Location: Melbourne, Australia
PIC experience: Professional 5+ years with MCHP products

Re: Timing Generation

Postby ric » Fri Oct 05, 2018 12:09 pm

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.
Latest test project, an LED matrix display made from one reel of addressable LEDs. here
User avatar
ric
Verified identity
 
Posts: 659
Joined: Sat May 24, 2014 2:35 pm
Location: Melbourne, Australia
PIC experience: Professional 5+ years with MCHP products


Return to Introductions and general chat

Who is online

Users browsing this forum: No registered users and 6 guests

cron