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39 Threads found on edaboard.com: Pic Frequency Counter C Code

Frequency Counter for PIC16F84 or PIC16F628

counter-app with 16c5x: 7-seg app-note: Can't believe it is so hard to browse a website (o; Though it's not for the exact MCU as you want...bus since you are an experienced pic guy it won't be hard to adapt it (
   Microcontrollers :: 19.09.2004 08:24 :: davorin :: Replies: 8 :: Views: 14249

frequency counter in picbasic

Hi, someone have developped a picbasic program for frequency counter pic based?
   Microcontrollers :: 26.09.2004 12:41 :: leemarrow :: Replies: 16 :: Views: 12126

Help me with code for frequency counter

Please, I want to construct this frequency counter with pic16F628 but I have only the pic16F628A-I/P, this code attached here works well with my pic? Thank You! felipetanaweb
   Microcontrollers :: 01.10.2005 22:01 :: felipetanaweb :: Replies: 2 :: Views: 1506

frequency counter using atmega8

hi guys, i am considering to design a frequency counter using atmega8, i want to use asynchronous operation of timer/counter2. frequency counter developed by pic asynchronous timer is ther.... but i want to make it with atmega8..... need some suggestion.. (...)
   Microcontrollers :: 14.12.2006 08:08 :: arnab.bhaumik :: Replies: 18 :: Views: 20766

frequency meter schematic needed.

i did lots of work on frequency meter from silicon chip , did not succeed. i am looking for another small but good working frequency meter using pic16F84A and LCD. last time i saw the ckt of such kind with 0.8vpp sensitivity , i am not exacty remember web add of it but everything is given on that web page , and the pcb size of that (...)
   Microcontrollers :: 23.01.2008 13:09 :: manish12 :: Replies: 3 :: Views: 4756

AVR frequency counter

I did something similar but with a pic so not much use to you, the system also displayed road speed, oil pressure, oil temp, gear shift position, voltage etc, wasnt so hard to do, fairly basic stuff for a microc these days.
   Hobby Circuits and Small Projects Problems :: 07.03.2011 01:28 :: dr pepper :: Replies: 3 :: Views: 2026

Frequency Counter Software Microcontroller

Here you Software 999MHz with 1kHz resolution (the hex files are Software
   Microcontrollers :: 31.03.2012 01:01 :: wizpic :: Replies: 2 :: Views: 977

counter using pic uC in microc

Hi, Here you'll find a nice implementation of a pic frequency counter in mikroc :
   Microcontrollers :: 29.12.2012 00:17 :: hugo :: Replies: 9 :: Views: 644

PIC 16f877a frequency counter

Maybe code part of mine non-pic, zero parts, 50 MHz (at least), freq meter can help you.
   Microcontrollers :: 18.06.2013 04:59 :: josiphal :: Replies: 1 :: Views: 423

INDUCTANCE AND CAPACITANCE METER USING METER

Try this one, it uses a pic, it is very accurate and simple. I had built it and works are also some other projects on the above page.
   Microcontrollers :: 01.10.2006 12:47 :: platonas :: Replies: 11 :: Views: 21989

1*16 lcd with ccs for a frequency counter circuit

Best option is search on google. Find out some sample code with ur pic microcontroller. Regards Chanchal Chauhan
   Microcontrollers :: 14.09.2010 05:28 :: chanchal.chauhan :: Replies: 6 :: Views: 1069

frequency measure...help!!!

hiz. i have not much code skill. im using pic16F877A after reading many codes, i make a code of CAPTURE module to calculate the frequency. my code is giving me some value regarding the frequency (having direct result from Capture Low and High register CCPR1H and CCPR1L). (...)
   Microcontrollers :: 21.07.2011 08:57 :: muhammadali_16 :: Replies: 3 :: Views: 657

how to make afrequency counter with apic16f84 and lcd

hi all: am new and i want help i need a work simulation( of protues for a frequency counter by apic16f84 and lcd and a source code in hex.. thx alot ..
   Microcontrollers :: 08.08.2011 03:27 :: dohi :: Replies: 3 :: Views: 634

Help porting code to another micro

Hello I have found this project for a frequency counter Since it has many pins not used and since space is limited, I would like to port the code to another pic. As far as I can see from the datasheet
   Microcontrollers :: 21.03.2013 07:16 :: neazoi :: Replies: 2 :: Views: 150

PIC-LCD-PC interfase

hello, To catch the information send to the LCD is a hard way.. because mode 4bits , but not impossible.. You can test in Win Xp environment to use VB6 + inpout32.dll see i don't know if the speed will be enough... because using a dll is not the fastest way.. best is 100% asm !!! so if
   PC Programming and Interfacing :: 14.08.2013 05:58 :: paulfjujo :: Replies: 2 :: Views: 363

PIC12F629 internal oscillator calibration

any one kno how to calibrate properly the internel oscillator of pic12f629 ? the factory defined calibration is not correct as far i have concerned
   Microcontrollers :: 01.03.2005 11:24 :: ful babu :: Replies: 2 :: Views: 1717

Looking for source code for frequency meter (50-60 Mhz)

try this
   Microcontrollers :: 26.05.2005 17:08 :: leemarrow :: Replies: 3 :: Views: 2478

Multiple PWM for LED's, on a PIC

Hi, I suppose this is a fairly simple question, but... I'm trying to write software for 3 PWM outputs on a pic, with a frequency of roughly 100=200Hz. Its for controlling the brightness of LEDs, a red, green, and blue. (Don't have an RGB led, but I'm using tiny 0403 chips close together, its as good as). I'm using the pic16F628A (...)
   Microcontrollers :: 18.09.2005 03:20 :: Buriedcode :: Replies: 14 :: Views: 8070

Help me with changing AVR code for a proper PIC

i also came across same avr source for tuning my guitar. i don't have avr or pic. i want to implement on plz tell in where in the source file do i have to make adjustment in order to burn the code in at89c51 microcontroller? thank you
   Microcontrollers :: 12.01.2006 01:03 :: buts101 :: Replies: 2 :: Views: 1398

Ideas for final year project in the digital field

for digital ?-controller i made two projects in pic but acually i don't have the code of them because it was from two years 1- digital clock with adjustmant 2- frequancy meter if you want any explanation tell me
   Microcontrollers :: 17.02.2006 10:16 :: ceaser :: Replies: 6 :: Views: 657

PIC Push Button Routine

Try this site it is very good
   Microcontrollers :: 17.01.2007 12:55 :: bbarney :: Replies: 10 :: Views: 2934

PIC AC line sinhronization

Hi, There is an Application note for this on the microchip website, I believe for an pic10F device but this code can be ported to a pic12 or pic16 ! I did look for you guy's: TB094 Dimming AC Incandescent Lamps Using A pic10F200
   Microcontrollers :: 27.02.2007 13:23 :: PaulHolland :: Replies: 4 :: Views: 1161

Help me with coding for PIC12F675 in PIC Siren

Can someone convert this code to suite into pic12F675? ;Project: Siren Sound List P = 16F84 #include __CONFIG 1Bh ;_CP_OFF & _PWRTE_ON & _WDT_OFF & _RC_OSC ORG 0 ;This is the start of memory for the program. Setup BSF 03,5 ;Go to Bank 1 CLRF 06 ;Make all port B output BCF 03,5 ;Go to Bank 0 - the program memory a
   Microcontrollers :: 23.12.2008 07:54 :: me_guitarist :: Replies: 48 :: Views: 10268

using external interrupt to count pulses problem

If you're using a mid-range pic (such as a pic16F8XX or similar) you can utilize the External interrupt (PORTB<0>) and a Timer interrupt (Easiest with MCUs that have CCP and a 16-bit Timer module) In a nutshell, you will count the number of times an external interrupt occurs until the number of CCP (or Timer0 overflow) interrupts amounts to one
   Microcontrollers :: 24.05.2009 16:52 :: jumper2high :: Replies: 2 :: Views: 2117

Making Digital Multimeter

I want to build multimeter which can measure V,I,R,C etc.I hope to use pic,ADC...But i have nt clear idea about how Current is measured ,how maintain autoranges..please give me some ideas,directions to do this project.
   Microcontrollers :: 25.01.2011 12:43 :: nicko-391 :: Replies: 7 :: Views: 2751

Help! Generating 50Hz PWM Frequency

Hi there, Is that possible to generate 50Hz PWM frequency with using 20MHz external crystal ? From what I heard, with 20Mhz crystal frequency it couldn't create such low PWM frequency, it that correct ? Is the any other method to create PWM 50Hz by using 20MHz external crystal? Below is my current coding basically I'm using timer0 (...)
   Microcontrollers :: 17.03.2011 00:32 :: twinsratio :: Replies: 0 :: Views: 1273

edaboard IR Decoding Tutorial

here is picture of my LG remote with keys press 0 , 1 , to , 9 . 59941599495994859947599465994559944599435994259950[/
   Microcontrollers :: 09.08.2011 01:18 :: d@nny :: Replies: 3 :: Views: 471

Programming of 8051 with LCD,Proximity switch and keybord

This will be helpful to you....I think....I dose not understand your requirement / Calculation correctly- c code to count frequency pulses and display on LCD : 8051 Microcontroller Projects AVR pic Projects Tutorial
   Microcontrollers :: 06.02.2012 06:41 :: milind.a.kulkarni :: Replies: 18 :: Views: 2012

Problems with PIC18F4620 when writing T1CON to Timer 1

Bit 6 in T1CON, T1RUN, is a read-only status bit. You can't write to it. ---------- Post added at 23:41 ---------- Previous post was at 23:32 ---------- Further... T1RUN is set only when the pic is using the Timer1 Oscillator (external 32.76KHz source) as the whole system clock, in some sort of po
   Microcontrollers :: 04.03.2012 18:41 :: FoxyRick :: Replies: 2 :: Views: 460

how to make counter from outer signsal on pic 16f877a assembly

i wrote this code and i want you to help me if there somehting wrong in it include "p16f877.inc" org 0x00 goto Initialize T0_delay: movlw 0x28;0x21 banksel TRISC movwf OPTION_REG banksel TMR0 ;movlw 0x6a ;movwf TMR0 clrf TMR0 banksel INTCON chIF:btfss INTCON,2 goto chIF return display: call Table ban
   Microcontrollers :: 30.03.2012 14:33 :: imnimn :: Replies: 4 :: Views: 827

PIC16F codes convert to 18F

Can someone convert the codes from 16f to 18f ? I will use these 'frequency counter' codes in my pic18F452. i will be very grateful 90875 //--------------------------------------------- // frequency counter // www.circuit-projects.com // Y.Erol (...)
   Microcontrollers :: 10.05.2013 10:24 :: nicoise :: Replies: 9 :: Views: 570

How to calculate frequency (40-60 Hz) of incoming signal using PIC16F877A

hello everyone! I am trying to find the frequency of incoming signal ( lab power supply properly transformed to small value) to my pic. I used Zero Cross Detection ckt in such a way that at every zero cross detected point I get high pulse and low pulse elsewhere. Can anyone provide me required c code for such operation. I am using (...)
   Microcontrollers :: 09.08.2013 04:49 :: Kkrishn :: Replies: 1 :: Views: 323

Please send me a working F to V circuit using TC9401/LM331

DO YOUR F DONKEY WORK SOUNDS LIKE YOU WANT A WHOLE PROJECT SO WORK FOR IT!!!! MAKE A pic PROGRAM FOR 0 -1KHZ STEPS OF PWM UNIT IN 1 KHZ STEPS +0 -100 STEP SELECTABLE IN INCRUMS OF 1 HZ POST IT AS C code THEN ASK FOR HELP DONT BE LAME THINK IN STEPS UP OR DOWN PLEASE ! I COULD WRITE code LIKE THIS WITH MY EYES (...)
   Analog Circuit Design :: 07.09.2006 19:09 :: VSMVDD :: Replies: 3 :: Views: 2468

125 khz carrier signal generation

You could use the pics PWM output, set to 50% at 125kHz If teh 125kHz needs to be accurate your pic will need a crystal controlled clock. code will be something like this snip used on a pic18F4525. ;set up PWM on CCP1 for PSU sync generator & turn it ON bcf TRISC, 2 ;set RC2 as output bsf T2CON, TMR2ON (...)
   RF, Microwave, Antennas and Optics :: 27.02.2007 03:08 :: G4BCH :: Replies: 1 :: Views: 1308

Logic level signal multiplier???

or how about a pic code w/c multiplies its pulse input by 60??
   Hobby Circuits and Small Projects Problems :: 05.01.2008 23:39 :: rx5 :: Replies: 5 :: Views: 1676

how to generate sinusoidal PWM...

I don't know about the pic but generally it can be like this. 1. Based on desired frequency (fo) decide the counter/Timer clock(fc) and Timer overflow rate(ft). ft = fc/MAX(timer value) 2. Make a table of the "PWM duty cycles" for the desired frequency. the number of entries in the Table will be n = ft/fo 3. Enable (...)
   Microcontrollers :: 12.02.2009 00:09 :: AMK1971 :: Replies: 7 :: Views: 6317

Interfacing HS1101 to AT89s52

thanks for your reply friend but i am not having idea about pic controllers. can we interface HS1101 to AT89s52 in same way as you have interfaced to pic? Ok. I can give you the idea only as I dont have ready code. Step 1: Develop a circuit using 8051 to calculate frequency of a signal. As we all k
   Microcontrollers :: 15.02.2012 03:14 :: papunblg :: Replies: 3 :: Views: 1077

1 second interrupt using timer0

hi, i m new to pic programming.i used an example code in mikroC time calculator to make a 1 second interrupt. the problem is when i simulate it in protues, i can see that led blinking time is more than 1 second.why is that?? pls help8-) thanks. this is the code //Timer interrupt: 25 ms //Desired Interrupt Ti
   Microcontrollers :: 13.10.2012 17:49 :: sachin95 :: Replies: 2 :: Views: 1970

gsm modem receive sms+interrupt+pic16f877a

//Project: GSM Modem Lesson //Programmer: Shahrulnizam Mat Rejab //pic: pic16F877A, pic16F887, pic18F4550 //Crystal frequency: 20MHz //Compiler: HI-TECH C for pic10/12/16 V9.83, pic18 V9.65 //Last Modified: 8 August 2012 //Website: shahrulnizam.com #define UART #define (...)
   Microcontrollers :: 30.10.2012 22:08 :: engshahrul :: Replies: 1 :: Views: 949