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100% repair of laptop & desktop motherboard
hi! i am sandip golani engaged in chip-level repairing of laptop & desktop motherboard, if any one of u have any problem, pls. place u r question in the forum, i will reply over here. i am ready to share my 15 years experiance with edaboard.com. m...
Service Manuals, Requests, Repair Tips :: 19 Nov 2009 1:09 :: Sinisa :: Replies: 144 :: Views: 29935
light dimmer using nec6122 ir protocol with pic12f629
i am doing a project for the light dimming.. using nec6122 protocol with pic12f629 in the ccs c compiler..could any body can help me....please send me the code.....
Microcontrollers :: 18 Nov 2009 5:05 :: Rizwan452 :: Replies: 2 :: Views: 81
sae j1939 signal simulator
now the long waiting six editions of au sae-j1939 simulator are well tested and released.these six editions of au sae-j1939 simulator are listed here: engine basic edition (h) engine premium edition (li) vehicle platinum edition (na) engi...
Microcontrollers :: 17 Nov 2009 2:49 :: funnynypd :: Replies: 15 :: Views: 2664
pic 16f876a pure sinewave inverter
dose any one help me to find a project diy about 12vdc/220vac pwm inverter based on pic...
Other Design :: 15 Nov 2009 19:05 :: doc007 :: Replies: 151 :: Views: 36242
pic18f2550, c18 - what setting to choose for cpudiv?
pll // prescaler selection bits:plldiv = 1 // no prescale (4 mhz oscillator input drives pll directly)plldiv = 2 // divide by 2 (8 mhz oscillator input)plldiv = 3 // divide by 3 (12 mhz oscillator input)plldiv = 4 // divid...
Microcontrollers :: 14 Nov 2009 22:19 :: hkBattousai :: Replies: 20 :: Views: 639
easy usb solution with 16c745 and built-in hid driver
sy-to-use usb solution with opt 16c745 (samples available :d )hex file for pic given belowhidcomm with examplesvb sample code with my hex file : usb control for port direction and value (read/write)blink led on porta.0 (pin2) if timer enabled, led ...
PC Programming and Interfacing :: 13 Nov 2009 13:34 :: Kripton2035 :: Replies: 21 :: Views: 8106
panasonic mn13811-g
ive spent the better part of this morning looking for the panasonic transistor mentioned in the title for this project, and i found that it was discontinued in 2005. unfortunately, ive already orded all the other parts. does anyone know where i ca...
Hobby Circuits and Small Projects Problems :: 10 Nov 2009 15:59 :: stereo :: Replies: 15 :: Views: 729
why do we use jtag emulator? engineers claim they don't.
i before talked with some experienced engineers and found that a fairly part of them didn’t use or seldom used emulator. when asking them why, they just simple answered “it is uncertainty”. if it is really so, why are there so many ...
Analog Circuit Design :: 09 Nov 2009 8:20 :: Kennyfly899 :: Replies: 2 :: Views: 126
how does it work - blinking leds
helloi have a question, in this video you can see 8 leds, and two leds of each color is connected to the one pin, so my question is how do you make it blink, because you can see in the video first led activate then the it turns of and then other one...
Microcontrollers :: 29 Oct 2009 15:41 :: cipi-cips :: Replies: 2 :: Views: 132
diy moving message display
hi alli want to have moving message display program for atmel at89c251. may some one help me?...
Microcontrollers :: 29 Oct 2009 11:11 :: madicalphy :: Replies: 565 :: Views: 214939
project to replace cy7c64613 in the icd2
i am evaluating the posibitity to replace the cypress usb on the icd2 with a pic18f2550 or similarreasons for this are:-cy7c64613 seems to be dificult to obtain. -lower price ($20 vs $10). -smd package requires a pcb and more or less skilled solderin...
Microcontrollers :: 23 Oct 2009 17:33 :: SG61-addict :: Replies: 1847 :: Views: 374291
easy pic usb cdc
forget all usb-modx and ftdi chips ! this is an easy-to-use usb cdc solution with pic 18f2550 (samples available :d ) - blink led 20 times on porta.0 (pin2) if b character sent to pic- echo other character sent to picmodified ccs c source files, hex ...
Microcontrollers :: 22 Oct 2009 9:47 :: robinvdb :: Replies: 14 :: Views: 9114
pic16f877a design using mplab ccs c compiler
doing a senior project using this microprocessor. before i get started to my whole project thing, i wanted to understand how the microprocessor works with the c codes.. ive been trying to make a led blink on one pin when the input is high, but i fai...
Microcontrollers :: 15 Oct 2009 6:26 :: CMOS :: Replies: 1 :: Views: 495
stopwatch between two pins
hey, i am trying to determine the time difference between two pins going high. more specifically, im using a pic 16f690, and the two pins in question are pinc1 and pinc5.basically, pinc1 goes high, and a very short time later, pinc5 goes high. the ti...
Microcontrollers :: 14 Oct 2009 14:50 :: hobby_85 :: Replies: 0 :: Views: 129
cb0703-pcb for "pickit 2" diy(do it yourself) fans
celebrate the new release of cb0703 diy-kit (enhanced version of pickit 2) from au group electronics.1. fully microchip recommended schematic layout plus enhanced features, 2. enhanced feature: additional (optional) power supply, 3. multiple usb conn...
Microcontrollers :: 13 Oct 2009 1:00 :: funnynypd :: Replies: 212 :: Views: 65540
ip cores
is there anyone out there who has worked with ip-core or zpu processor(from www.opencores.org) or any soft-core processor?? i need to implement a zpu processor in fpga cyclone.then i should make a simple programm for the zpu processor in order to sh...
PLD, SPLD, GAL, CPLD, FPGA Design :: 08 Oct 2009 23:18 :: kickbeer :: Replies: 5 :: Views: 648
how to pass value to lcd?
hi everyone, i have written my coding to count the revolution per minute of a motor, does anyone know how to pass the counted value to lcd? how to write it ? my coding is below, i really need u guys help, thanks a lot, if u guys feel its too long, u ...
Microcontrollers :: 07 Oct 2009 16:28 :: lizxay :: Replies: 0 :: Views: 102
problem with pic16f876a - led blink
hello everyone,i am still a beginner in microcontroller programming. i want to make led blink using a simple c code - using pic16f876a, compiled in ccs.the code is:##include <16f876a.h>#fuses hs,nowdt, noprotect, nobrownout, put,nocpd,noput#us...
Microcontrollers :: 02 Oct 2009 6:08 :: eanema :: Replies: 18 :: Views: 573
[msp430f2274] how to extract the desired data from uca0rxbuf
i followed the sample code from the ti.the ez430-rf2500 target board receives an external signal from a heart rate board(msp430fg439). i first pass the value of uca0rxbuf to uca0txbuf for testing. i observe the signal from p3.4(tx) pin by using oscil...
Embedded Systems and Real-Time OS :: 01 Oct 2009 2:30 :: bettyxyz1028 :: Replies: 0 :: Views: 132
attiny 2313 programming in avrstudio4
hi all.. i am working on attiny2313. from past two days i am trying to send & receive data to tiny2313 through rs232. program is very simple & i found it from net but not working. according to datasheet i have to burn the fuse, if i am using ...
Microcontrollers :: 18 Sep 2009 15:36 :: vinstudy :: Replies: 7 :: Views: 474
sim300
hi everybody, is here any one working on sim300 if so, is there any thing to be added other than the circuit provided in schematics provided in ver 2.02. because i getting rdy after power on but its not detecting sim card when sim card is placed. i ...
Professional Hardware and Electronics Design :: 16 Sep 2009 9:54 :: mpch_elec :: Replies: 145 :: Views: 37837
pic12f675 led blinking code
hi friendactually i very new for this pic. now i want to build 1 project led blink. so this is my code. but when i program it. the led does not blink. how? please help.then i also not understand to use delay. please helpthank & regardsasuke;=======8p...
Software Requests :: 05 Sep 2009 22:39 :: JoKKeR :: Replies: 1 :: Views: 970
help pic16f877a using mikrobasic
wbie on using pic16f877a,im familiar with pic16f84a but i got problem on pic16f877a..right now im using basic programming language (mikrobasic compiler)..now i could only manage to manipulate the led blinking using pic16f877a,but i cannot add inputs ...
Microcontrollers :: 04 Sep 2009 4:56 :: sheth_ka :: Replies: 8 :: Views: 633
voltage-to-frequency converters
i am working on making energy meter with psoc .i have gone through the application notes of imlementiing energy meter wuith some icsbut i could not understand how the digital to frequency converter or voltage to frequency converter works..plz explain...
General :: 03 Sep 2009 19:47 :: anithatg :: Replies: 4 :: Views: 288
how to do reverse engineering on rs232 and rs485
hello friends,i want ur advice on reverse engineering technique of rs232 and rs485 ports. suppose we have connected a device (led display in my case) on computers port i want to read the information being sent on that ports.in my case a computer prog...
Microcontrollers :: 02 Sep 2009 14:03 :: madicalphy :: Replies: 9 :: Views: 464
lpc2129 power on reset
hi friends, im working on lpc2129, its lcd program is not working on power on reset. after turning on its requires a press on reset button for displaying the lcd.i have put proper delay on the begining of the program but its not working as i expected...
Microcontrollers :: 29 Aug 2009 8:55 :: electronicart :: Replies: 5 :: Views: 227
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simcom300-can't get constant 1 sec led or connect to network
i got response of 24,0 on at+csq, but i am not able to get constant 1 sec led as well as not able to connect to the network, what could be the problem can anyone suggest. very urgent please...
Professional Hardware and Electronics Design :: 28 Aug 2009 15:40 :: GSM Man :: Replies: 1 :: Views: 183
12f675 problems
im using 12f675 ..with internal clock.. i am just tring to blink the led.. but im not getting the result..plzz help me if u have a demo code in c.i amusing hi tech c compiler,, source code is in c...this is the code i have used ..but not giving the r...
Microcontrollers :: 20 Aug 2009 4:07 :: rajudp :: Replies: 2 :: Views: 261
pic16f777
hello every1.im new to this forum.im currently working on this project to blink leds by varying intesities using pic16f777. im writing code in c language. i want to glow leds by getting an analog to digital input working using the potentiometer onthe...
Microcontrollers :: 14 Aug 2009 1:19 :: manpriya :: Replies: 5 :: Views: 371
need help to make usb icd2clone work ( 4550 & 877a versi
i built the icd according to the info posted by pics there: http://www.edaboard.com/viewtopic.php?t=161641&start=420&sid=1b18e31069a55140f08abe1a5d20b037( top of page 16)i didnt want to pollute the other thread with my struggling so i created another...
Microcontrollers :: 10 Aug 2009 12:19 :: mz_fadhli :: Replies: 70 :: Views: 13614
how can pic16f84a blink a led without external oscillator
can pic16f84a blink a led without an external oscillator or control a lcd without one?how can i do that if that is possible?thank you....
Microcontrollers :: 08 Aug 2009 17:57 :: wp100 :: Replies: 11 :: Views: 270
short version of help for the icd2
hi guys and newbies,i started this thread because i cannot see any of you guys trying to build the icd2 reading 55 pages and then try to figure out what and where to go with this.i will post what i have but does not guarantee it is the latest. so if ...
Microcontrollers :: 08 Aug 2009 2:36 :: mz_fadhli :: Replies: 46 :: Views: 8780
au fleet management syetem (fms) can signal simulators
july-13-2009au group electronics celebrates the new release of au truck / bus fleet management system (fms) can signal simulators:http://www.auelectronics.com/system-fleetmanagementsystemsimulator.htmhttp://images.elektroda.net/12_1247524961.gifsix ...
Microcontrollers :: 03 Aug 2009 15:16 :: funnynypd :: Replies: 4 :: Views: 531
pic18f458 - led blinking what is the problem?
hi friends..........i am using pic18f458,it is working well for serial communication.but when i tried to blink the led it doesnt obey.i have use portb.but if i touch the led terminal led is blinking.........whats the problempls replay me...
Microcontrollers :: 29 Jul 2009 21:55 :: manpriya :: Replies: 5 :: Views: 342
toggling led's high when timer0 overflows
31 khz internal lpinsrc clock with a 1:30 pre-scaler. the leds are not toggling off and than on and than off again. they are just going from off to on almost instanteously.here is my code://led will blink on and off every 1......
Microcontrollers :: 29 Jul 2009 20:56 :: M3GAPL3X :: Replies: 2 :: Views: 330
8051 without reset
hi friends im developing a project using 8051 core , after turn on the the power suplyevery time i should press the rest button to start running controller and lcd.i found the problem, all peripherals are working , but lcd is not working , it will w...
Microcontrollers :: 28 Jul 2009 14:32 :: davidgrm :: Replies: 10 :: Views: 375
help with a project avr at90s8535
hi could someone help me in project avr. i can not compile the ta90s8535 thanks cesar :cry:...
Microcontrollers :: 25 Jul 2009 15:11 :: cesar35 :: Replies: 6 :: Views: 534
cpld xc9572 loopback signal operations - no results
hello friends, i have got a strange problem i have been dealing for weeks. maybe you could help me out of this.i have a machine with internal state (initialized internal signal). i strip the design down for simplicity. it should be able to bitwise an...
PLD, SPLD, GAL, CPLD, FPGA Design :: 22 Jul 2009 23:00 :: thtasuja :: Replies: 5 :: Views: 267
problem with wireless serial transmisson
as i have bought two ask modules (tx and rx) operated at 434 mhz..http://thinklabs.in/shop/product_info.php?cpath=44&products_id=72http://thinklabs.in/shop/product_info.php?cpath=44&products_id=73and i want to make remote control robot for that i am ...
Hobby Circuits and Small Projects Problems :: 17 Jul 2009 20:56 :: betwixt :: Replies: 52 :: Views: 2375
need help me to convert the code to hex code
hi! can somebody help me to convert this code to hex code? i m using pic 16f876a and hitech c language i hv tried many times but still cant work thanks in advance #include<pic.h>//===============configuration==============================__conf...
Microcontrollers :: 14 Jul 2009 13:37 :: yus :: Replies: 7 :: Views: 444
service manual tektronix wfm300a
hello,i have one video waveform monitor reference wfm300a from tektronix and i think that the power supply of the device is broken because dont work any led of the front panel.only blink one small lamp (please see the attached images).anyone have inf...
Service Manuals, Requests, Repair Tips :: 07 Jul 2009 10:14 :: kkdelabaca :: Replies: 0 :: Views: 166
atmega8l avr with temp sensor
hi,i am doing my first avr exp using a temp sensor lm35 to blink blue green or red led according to the temp of the room. • connected the leds to port b of atmega8l uc and temp sensor to adc 3 input. • using internal oscillator 1mhz as cl...
Microcontrollers :: 07 Jul 2009 1:10 :: ark5230 :: Replies: 1 :: Views: 271
pic18f4550 and usb - help needed
hello folks,i finally laid my hands on a couple of 18fs that i wanted to try out with usb. ive done all the typical stuff, got the datasheet, went through the basics, still getting used to the slightly different memory organization (compared to 16fs)...
Microcontrollers :: 04 Jul 2009 1:52 :: asmo :: Replies: 15 :: Views: 3372
how should i start?
im new in the field of microcontroller and want to learn iti read some lessons but i cant get full ideafor example i want to start with pic16f84 and want to know some things:how to write code and which compiler should i use?how can i design program t...
Microcontrollers :: 03 Jul 2009 9:18 :: doraemon :: Replies: 9 :: Views: 963
hi require help on pwm codes
hi i am using a p18f4520 microchip pic with picdem 2 plus demo boardcurrently my program i did is adjust the potentiometer @ ra0 to check my voltage. when more then 4.5 volt 4 led blink, between 4.5-4 4 led light up, 4-3v 3 led light up 3-2v 2 led li...
Microcontrollers :: 02 Jul 2009 9:53 :: xundeadx :: Replies: 5 :: Views: 324
blinking a led - need solution of code problem
hiiii,i m blinkin a led via atmega32, i hve the code but when i code the m/c and connect it to a led ,rather than blinkin it is just turned on.can any1 tell wt exactly the prob is .....my code is given below#include <avr/io.h>#include <avr/...
Electronic Elementary Questions :: 01 Jul 2009 18:25 :: ark5230 :: Replies: 10 :: Views: 439
low cost sensor for liquid level
hii am looking for a sensor which can measure low level of liquid in 250 ml tank and send signal to controller. which has to be cheap and small in size....
Professional Hardware and Electronics Design :: 30 Jun 2009 8:08 :: pepakpan :: Replies: 7 :: Views: 478
blinking a led using atmega8 microcontroller, i am new
i have a usb programmer for atmega8. i am familier with 8051 / 89s51 family and used it with isp programmer (using assembly language). i am not able to blink a led using atmega8 microcontroller, i am new to this. can some one suggest a simple schemat...
Microcontrollers :: 29 Jun 2009 21:30 :: ark5230 :: Replies: 0 :: Views: 450
pic18f4520 : led blinking
ello,i am new for pic microcontroller (pic18f4520) series.i have successfully write program for blink led and checked onmplab simulator.now i have to check that with actual hardware.i have connectedc1 and c2 22 pf and xtal of 4.00 mhzpin 13 and 14 fo...
Microcontrollers :: 24 Jun 2009 16:13 :: fightstar :: Replies: 10 :: Views: 1434
the circuit cant work. is there anything wrong?
this is the circuit i work with. supposed vdd is fed by 5v. but when i measure it, it only 3.6. is it normal? but the circuit cant work. anything wrong?what supposed i do?...
Microcontrollers :: 23 Jun 2009 8:38 :: intan :: Replies: 18 :: Views: 519
help needed in converting this program to asm code
can somebody help me convert this program to asm code?i m using pic16f876a, 20mhz osc. basicly the project is to sense 2 different temperature and if the temperataure is exceed 50c, led will on. if both led on, buzzer will on. and all the temperature...
Microcontrollers :: 11 Jun 2009 10:18 :: movie_freak :: Replies: 1 :: Views: 189
light up led source code - what went wrong ?
hi, i currently play with led using pic16f877a.i connect one led to port b bit7.the result i want to get is just to lit the led.however, it does not response.here is the source code i write using ccs picc compiler.#include <16f877a.h>void main(...
Microcontrollers :: 11 Jun 2009 3:11 :: evaang2003 :: Replies: 9 :: Views: 360
hex code
hi!can somebody help me to convert this code to hex code?i m using pic 16f876a and hitech c languagei hv tried many times but still cant workthanks in advance...
Microcontrollers :: 05 Jun 2009 10:16 :: sau_sol :: Replies: 8 :: Views: 702
8051 examples
hi all,could you provide me with links or pdf for 8051 examples?thanks inadvance....
Microcontrollers :: 03 Jun 2009 15:06 :: glenndr_15 :: Replies: 12 :: Views: 1602
xtal(oscillator problem) - a way to generate 1 sec delay
i am using using a 12mz crystal and atmega 16 and mikroc pro for avr complier.when i give a delay of 1 sec the led blinking doesnt blink at 1 sec,it takes too long to blink.delay_ms(1000);do i need to configure anything?or is there any other...
Microcontrollers :: 29 May 2009 10:54 :: jumper2high :: Replies: 2 :: Views: 264
service manual for panasonic nv-ds60eg
hi,does anybody have the service manual for this camera?(panasonic nv-ds60eg)problems: - on the screen apears a flashing icon for changing the memory batery.... but the batery is ok! - the on light blink - some buttons dont work... rec button, men...
Service Manuals, Requests, Repair Tips :: 27 May 2009 9:38 :: rajeshkk :: Replies: 53 :: Views: 15444
coding help - can somebody check these codes?
hi! can somebody check these codes? i found it from google#include<pic.h>//===============configuration==============================__config (0x3f32);//===============define io port=============================#define lcd portc#define rs ...
Microcontrollers :: 24 May 2009 6:41 :: intan :: Replies: 0 :: Views: 210
solve the puzzle ... flowcode set trisb problem
iv tried as hard as possible , but it does not work.iv written(burned) a program to pic 16f84a by using jdm(serial) programmer. since iv no experience at all, i d say that the program is in chip, because i can read it from chip ... after reseting so...
Microcontrollers :: 18 May 2009 1:12 :: herlambang :: Replies: 6 :: Views: 552
blinking led with pic16f84a multisim
i test multisim circuit make blinking led with pic 16f84.assembler code is ok and working good but if i attach one led with resitor over port rb0 pic pic16f84 this led dont blink becouse the level in out over port go to 0. is same led and resitor ma...
Electronic Elementary Questions :: 05 May 2009 23:47 :: leye0 :: Replies: 1 :: Views: 1578
pic 16f877 - a problem with all pic ports 5v even mclr
i have programmed pic with mikroc blink led example and it worked fine once but now all pic ports 5v even mclr i bought another and still does the same thing :(( any help plz added after 2 hours 19 minutes: any body answer plzzzzzzzzzzzzz!!!!!!!!!!!...
Microcontrollers :: 26 Apr 2009 23:25 :: tamer1221 :: Replies: 0 :: Views: 279
help with a tektronics 2205 , does not display anything
hi, i have this scope and i downloaded the service manualsit does not displays anything, but the power led come on and moving buttons around i can get the trigger led to blink.when i press the beam finder nothing happeni checked the voltages from the...
Service Manuals, Requests, Repair Tips :: 17 Apr 2009 0:22 :: E-design :: Replies: 13 :: Views: 600
pic16f877 / lm35 temperature sensor / max232 / c-code issue
hello dear edaboard members !im stuck with some output issues off this c-code, tryin to build a rather simple temp-sensor and want it to have an output on the serial interface in plain asciicode... but i cant figure out whats wrong, the code is origi...
Microcontrollers :: 14 Apr 2009 16:13 :: trekkytekky :: Replies: 1 :: Views: 1932
configuring mcon register for ds5000t
hi,i am working with a ds5000t microcontroller. i am able to load intel hex files successfully into it. but when i am running it, nothing is happening. i wrote a program to blink an led but nothing happens to my led when i run my program.i suspect th...
Microcontrollers :: 18 Mar 2009 10:38 :: seemanta :: Replies: 0 :: Views: 75
guys, help me out this...
im gonna use ne555 for this... it will be a police lamp that will alternate. common astable multivibrator with alternating led is like with 50%duty cycle, one set of led on while another is off. it is like... _____________________ ...
Analog Circuit Design :: 11 Mar 2009 20:05 :: aq_mishu :: Replies: 4 :: Views: 186
expert advice on multivibrator...
guys,i need a system... like 2 lights (led of course).... alternating....|------------| |----------------||light set 1 | |light set 2 ||turned on | ----alternating-----| turned on for ||for ...
Analog Circuit Design :: 08 Mar 2009 15:55 :: aq_mishu :: Replies: 0 :: Views: 129
help building 256 shades monochrome led display
hi all,im building a 256 shades monochrome led display, its a 55 x 35 leds matrix.i intend to use xilinx cplds for row pwm generation, an atmel 8051 member uc runs at 33 mhz and a 512 kb ram chip. i have some questions:1- do i have to calculate the f...
Microcontrollers :: 01 Mar 2009 14:34 :: siramir45 :: Replies: 52 :: Views: 9177
designing with micro-controller(8051)
hii want to do some small project to improve my knowledge in the area of boarddesign, so i choosed to do a project by using micro-controller(8051)but im unable to find a topic/ some small application that could be made usingthe controller.so please a...
Microcontrollers :: 28 Feb 2009 11:14 :: siddhartha_patra :: Replies: 9 :: Views: 2547
pic32 starter kit
hi.i would like to know if someone have already designed a board to use the hirose connector of the pic32starter kit in order to use the peripheral devices.if you have devolped one, please post it here.thanks...
Microcontrollers :: 25 Feb 2009 21:40 :: Kabanga :: Replies: 8 :: Views: 1761
sony kv-21gmr1mkii
need helpsony kv-21gmr1mkiithe problem is there is not picture/raster and only shows when it warms up.need your help. tips , ideas or service manuals will do.million thanks!-breneer...
Service Manuals, Requests, Repair Tips :: 29 Jan 2009 10:51 :: Sergiu_Q :: Replies: 7 :: Views: 657
communication problem
hi all, i am working on led display project, i am using at89s53(8051) for programming(keil c) . from last three days i am facing serious problem with communication. i want to communicate pc to ledthere is another ic on board provid...
Microcontrollers :: 26 Jan 2009 6:25 :: besthabit :: Replies: 11 :: Views: 600
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