1000 Threads found on edaboard.com: Clock Schematic
guys i need pic based digital clock schematic and source code.can anyone help me
Microcontrollers :: 03-14-2007 05:21 :: halee awan :: Replies: 3 :: Views: 2442
Right below on your page you'll find
Digital clock schematic (11)
NIXIE DCF-77 clock schematic (2)
Digital clock (27)
Digital clock (4)
digital clock (1)
Digital clock problem (2)
digital clock program (5) (...)
Hobby Circuits and Small Projects Problems :: 08-12-2010 03:37 :: pranam77 :: Replies: 2 :: Views: 3659
This is a cool one:
Hobby Circuits and Small Projects Problems :: 01-11-2005 13:26 :: XNOX_Rambo :: Replies: 13 :: Views: 35498
I need a schematic for a Nixie clock, with DCF77 receiver. I searched with google, but I can't find any projects with DCF Can someone help me?
Microcontrollers :: 06-14-2005 13:44 :: oldmp :: Replies: 2 :: Views: 3192
A quick search for "digital clock schematic" using GOOGLE give me this site:
I see that this project is an old conventional digital clock using counters integrated circuits and seven segment decoders. This is pure hardware and no software at all.
The restriction is about the
Hobby Circuits and Small Projects Problems :: 02-23-2005 14:46 :: rkodaira :: Replies: 5 :: Views: 6891
in the schematic given by mr.electronicus
a 2051 controller is used but the size of the attached hex file is 2.25 kb. is it possible to fuse it into the chip. if yes how.
The size of the hex file is 2314 bytes, but the binary code image has a size of 831 bytes (0x33E).
Thus, it will fit into 2048 (0x07FF) bytes of AT89
Microcontrollers :: 03-15-2006 14:11 :: silvio :: Replies: 11 :: Views: 5213
Take a look at the following projects:
Hobby Circuits and Small Projects Problems :: 04-02-2006 21:37 :: IanP :: Replies: 2 :: Views: 1074
Anyone got a link or something About a Real Time clock that is is displayed on a 4 7 segment Digits using PIC16f87x and Written in C ?
Thanks For your Help
Hobby Circuits and Small Projects Problems :: 04-13-2006 14:13 :: ZeleC :: Replies: 3 :: Views: 2034
Design a digital clock with the following functions:
? Displays hours, minutes and seconds
? Indicates PM by displaying the decimal point
? Enables the setting of hours, minutes or seconds by having the display increment at a fast or slow speed and then stopping at the desired value
? Without using microcontroller and microprocessor
Electronic Elementary Questions :: 11-30-2010 08:06 :: erictzhec :: Replies: 8 :: Views: 7895
hello im trying to make a pic 16f84a 4 digets 7-Segment clock but i got couple a problems
this the design 83640
i got the hex i didnt make a code 83641
the minutes displays are upside down and i dont know the pins in the real 4 digets 7-Segment
where is the pins in this 83642[/A
Microcontrollers :: 11-28-2012 17:51 :: hesho90 :: Replies: 1 :: Views: 1363
here's my digital clock schematic
Microcontrollers :: 08-29-2006 03:24 :: emavil :: Replies: 4 :: Views: 7571
I am working on LVDS tx in 130nm technology for transmitting 250Mhz clock (schematic enclosed)
I have a Query regarding Gain of CMFB amplifiers
According to Common mode & differential mode output swing Specification I decided
The transistor sizes of output switching network
Now MN2 size comes out to be very high & MN2 Cgs = 992.
Analog Circuit Design :: 06-20-2007 03:40 :: discover_AMS :: Replies: 3 :: Views: 805
I need the ASM Code File of this clock driver schematic
Microcontrollers :: 09-25-2007 04:03 :: Sheeraz Khan :: Replies: 0 :: Views: 480
I need the ASM Code File of this clock driver schematic
Microcontrollers :: 09-28-2007 00:24 :: Sheeraz Khan :: Replies: 4 :: Views: 703
I have a 24MHz bi-phase mark signal and I want to recover the data and clock using a Xilinx or Altera FPGA. I prefer not to use DLL or PLL inside a FPGA since there may be too much jitter on the signal and fpga DLLs are sensible to jitter.
I am ready to use an external 24MHx VCXO and to lock to the bi-phase mark signal, but I am not quite
Professional Hardware and Electronics Design :: 10-05-2003 23:28 :: TurboPC :: Replies: 10 :: Views: 5386
Microcontrollers :: 11-16-2003 14:06 :: Zenner :: Replies: 1 :: Views: 2741
Please help me: Is there any body have the schematic of LED clock & Temperature Meter Bass on PIC Microcontroller
Microcontrollers :: 07-16-2004 05:47 :: Sheeraz Khan :: Replies: 6 :: Views: 2123
I want to make a Mechanical Wall clock and I need the second & minute plus from PIC Microcontroller so then I can operate the Mechanical Time clock
Microcontrollers :: 07-29-2004 03:43 :: Sheeraz Khan :: Replies: 2 :: Views: 582
here is ready code in pic assembly file for pic based clock just click the link given below i have made this clock working fine some very fine feature such as in the night light of led display automaticaly adjusted also software based clock calibration
and the schemati
Microcontrollers :: 11-02-2004 08:47 :: Fragrance :: Replies: 11 :: Views: 4050
I search always an DC (brush) Servo Controll, whis direction an clock input
I work whis PCNC Software from
I will change from Stepper from my selfmade CNC to an Servodrive.
The Japan circuit has inside the Ramp programming for the DC Motor, i will NOT tha ramp inside the Firmware.
Have any people an another circuit whis Atme
Hobby Circuits and Small Projects Problems :: 12-02-2004 23:52 :: Hardwarekiller :: Replies: 3 :: Views: 9581
Hi, I once used an inverter in the MACH4A to 'clean up' a clock, with a couple of resistors to add hysterisis, effectively making a schmitt trigger. However, I'm not sure if what you are suggesting would be a good idea. You may simply have in your main schematic (design) an inverter buffer connected to two pins, but what you actually get may be 3
PLD, SPLD, GAL, CPLD, FPGA Design :: 03-04-2005 16:19 :: Buriedcode :: Replies: 4 :: Views: 1384
Sockets are provided and connected for a LTC1298 A/D Convertor, DS1307 Real Time clock, 24XX Series EEPROM, MAX232 RS232 Communication IC and 75176 IC's for RS422/RS485 Communication. Connectors are provided for program download, LCD units and external connections to all I/O pins
Microcontrollers :: 03-23-2005 14:14 :: silvio :: Replies: 2 :: Views: 1020
code for digital clock1 6f84
Professional Hardware and Electronics Design :: 07-21-2005 23:24 :: preda :: Replies: 12 :: Views: 9371
I have a design (Verilog) and using a STARTUP_SPARTAN3 instance. On the instance, I send the clock signal and reset signal. The clock and reset signals are comming directly from the top-level clock pin.
That is, I have code looking like:
module counter_7seg(reset, clk, segLow, segHigh); //Top-level module
PLD, SPLD, GAL, CPLD, FPGA Design :: 05-30-2005 23:50 :: Big Boy :: Replies: 1 :: Views: 765
this post is getting way out there! filtering harmonics? your signal is going to be about 40dB down, about as high as the noise floor in a digital chip - i would be surprised if someone could come up with a schematic that actually works. 1.25Ghz? lol!
my vote is for a pll. if you aren't familiar, a pll is a little closed-loop system that dr
Analog Circuit Design :: 08-12-2005 06:18 :: electronrancher :: Replies: 11 :: Views: 1510
You could build the pulse generator using a crystal oscillator plus a small microcontroller, or an FPGA/CPLD, or a few digital logic chips. The accuracy of your clock would equal the accuracy of the crystal oscillator. The microcontroller or FPGA/CPLD would require some programming. You will also need an interface circuit that converts the digital
Professional Hardware and Electronics Design :: 10-10-2005 04:37 :: echo47 :: Replies: 3 :: Views: 1704
Can anybody draw schematic of listed code?
; 22nd Oct 2004
; Output 1 pulse/min from 50Hz mains or 0.5Hz clock circuit
list P =3D 12F675
errorlevel -305, -302, -306 ;MPLAB error suppression
__CONFIG _CP_OFF & _INTRC_OSC_NOCLKOUT & _BODEN_OFF & _WDT_OFF & _PWRTE_ON & _BODEN_OF
Microcontrollers :: 01-04-2006 05:25 :: Sheeraz Khan :: Replies: 1 :: Views: 576
There are some RTC (Real Time clock) that generate 1Hz signal in one pin only with connect them to 3.3V or 5V power suply. For example PCF8583 from philips.
Microcontrollers :: 01-08-2006 14:31 :: Tulkas :: Replies: 8 :: Views: 2433
can i use 555 timer as syncronous clock for counter??
ii know the frequency of the 555 timer is very low comparing with pulses generator device;
need your opnion please
thanks in advance
Electronic Elementary Questions :: 02-07-2006 09:18 :: hadef :: Replies: 2 :: Views: 1106
Would remain grateful if any one could let me know the www site for 8 Bit Microcontroller Interfcae with Xilinx XC 4000 - XC 9500 CPLD Interface schematic.
I'm no expert, but I guess it depends on your application. The term 'interface' it quite vague. A quick search on google I got:
Microcontrollers :: 03-13-2006 10:27 :: Buriedcode :: Replies: 2 :: Views: 1443
I made a board as this schematic to get 32.768K clock source, but it couldn't generator 32.768K clock freq. I saw more than 60MegaHz at TP25, What's wrong? I don't know how to do to get 32.768KHz clock?
any suggestion? or any other fine schematic that could generate 32.768Khz?
Hobby Circuits and Small Projects Problems :: 06-08-2006 05:17 :: liuzhili :: Replies: 1 :: Views: 893
I have this radio clock and I don't know why each time the current went off loses the time. Any sugestion?
This model doesn't have any battery for backup
Some sony model have a dual layer capacitor but I don't see any
Added after 43 seconds:
the picture of the clock
Service Manuals, Requests, Repair Tips :: 06-28-2006 11:02 :: angelmoure :: Replies: 6 :: Views: 3624
who knows how can real time clock keep track of clock after power down ,what's the relation between RTC and clock unit?
Microcontrollers :: 09-18-2006 01:13 :: hustyw :: Replies: 3 :: Views: 2596
XTAL based oscillator on 7th+ overton, multiplied to your frequency. Sinewave to LVPECL or any other appropriate levels using high-speed low-jitter logic device (I would recommend ONSemi's NB7L216).
What is your desired clock rms jitter value?
Analog Circuit Design :: 11-25-2006 07:22 :: rfmw :: Replies: 3 :: Views: 1123
did you tried google ?
Hobby Circuits and Small Projects Problems :: 02-08-2007 02:05 :: cancel :: Replies: 3 :: Views: 1434
Hobby Circuits and Small Projects Problems :: 02-13-2007 00:12 :: tanveerriaz :: Replies: 3 :: Views: 4451
Look at appnotes AN590 and AN615 from Microchip. They feature a clock based on the PIC16C54(A), but you should be able to use/ adaptt the schematic and possibly use most of the code, too.
Hobby Circuits and Small Projects Problems :: 02-22-2007 12:14 :: VVV :: Replies: 30 :: Views: 16964
I need help
I won?t to make a tower clock & I won't to drive the Minute hand of clock through Stepper Motor so I need the RTC base schematic Diagram that can drive the Stepper Motor after every minute for drive the clock minute hand
Microcontrollers :: 04-24-2007 07:53 :: Sheeraz Khan :: Replies: 1 :: Views: 960
Setting the clock speed in Proteus is a matter of editing the schematic component for the PIC and typing in the value beside the 'clock Frequency' property.
The very last thing you want to do is hang an oscillator off the pins. The simulation model will ignore it and it will cripple simulation performance.
We do it this way both (...)
Microcontrollers :: 06-26-2007 09:32 :: Iain :: Replies: 1 :: Views: 2151
any quik suggestion....
I am using a PIC with 30 mhz.
on pin PIC is generating 7.5Mhz ...
this clock I need to feed to PIC itself and other Pheripheral chip...
i can see the 5v for PIC output, but when I am connecting directly this pin to PIC input and pheripheral..
then voltage is dropping down to 600mv.
i used ac termination but still
Microcontrollers :: 07-26-2007 10:05 :: tom_hanks :: Replies: 7 :: Views: 779
i am a new user....
do anyone can help me about the above topic...
this is using PIC to create a digital clock with calender and time...
if you have any schematic diagram and program...
can u post up for me?:|
Microcontrollers :: 08-15-2007 00:38 :: wyang :: Replies: 2 :: Views: 4588
Hi, I need to interface my PIC 12-hour clock to another PIC stepper motor controller, had anyone here has a simple schematic for me?
What I want to do is to set a time for the clock and at the moment the stored time exacts the current time , the stepper motor will rotate
thanks in advance,
Hobby Circuits and Small Projects Problems :: 10-12-2007 23:16 :: the_risk_master :: Replies: 4 :: Views: 1677
Can someone post a schematic and complied .HEX file for blinking a led using PIC12F675. I dont want to use an external crystal in the circuit and use the internal clock of the pic.The basic idea is to just test the device!
Hobby Circuits and Small Projects Problems :: 12-02-2007 08:51 :: radio freak :: Replies: 1 :: Views: 2190
hello why isnt any one replying has no one ever done any usb development .
i am looking at the chip at89c5131 atleast can you tell me whether it can be programmed by the same atmel controller that i have or does it need to be programmed in some other way and what is the maximum clock speed that can be applied thanks
Microcontrollers :: 01-23-2008 10:25 :: miss_monica :: Replies: 10 :: Views: 1770
I am new in the CPLD/FPGA world, I want to make a simple development board for
Lattice Mach4, my question is, is it necessary a clock source for the cpld, or just in case of state machines? A simple combinational asyncron implementation would work without a clock source or not?
Sorry if the question seems stupid, or to obvious.
PLD, SPLD, GAL, CPLD, FPGA Design :: 01-30-2008 04:08 :: LaszloF :: Replies: 8 :: Views: 2578
I am working on a simple 7 segment clock project using a XC9536 CPLD by Xilinx. I have some experience with microcontrollers but this is the first time I will be using a CPLD so please be gentle :)
To generate the timebase I figured the easiest option would be to use a standard 32.768kHz watch crystal and divide it to acquire the 1H
PLD, SPLD, GAL, CPLD, FPGA Design :: 04-05-2008 21:56 :: cosmicboy :: Replies: 14 :: Views: 6828
I'm designing a scan D Flip Flop by schematics.The problem is when I simulated the design,the output obtained is delayed by one clock cycle.I'm using Cadence IC Design tool to design the flip flop and using HSPICE to simulate the design.
Is the delay occur because of the design (from the schematic drawn),or from the setup and hold (...)
ASIC Design Methodologies and Tools (Digital) :: 06-24-2008 00:04 :: rinaishlene :: Replies: 5 :: Views: 1727
i have to use fpga for my digital modulator design , im confusing with the clock signal implementation in fpga ........
how we decide that the clock valueand y it is different for different blocks with in fpga
any one explain me plz
PLD, SPLD, GAL, CPLD, FPGA Design :: 09-06-2008 07:26 :: among :: Replies: 2 :: Views: 679
Did you look at the website? They have an application note that has the code and schematic for a digital clock. The chip they used is different from the 877 but the code is easily ported over to the 877.
Microcontrollers :: 04-13-2009 21:11 :: BobK :: Replies: 8 :: Views: 9802
1. Can some one post schematic of a state retention flop?
2. What care must be applied ie what should be the state of the clock and other control sigals when putting the flop in standby mode and during wake up?
ASIC Design Methodologies and Tools (Digital) :: 04-25-2009 04:29 :: manish_1024 :: Replies: 0 :: Views: 812