http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. Thu, 04 Dec 2008 15:26:09 -0800 http://backend.userland.com/rss092 Hello Ajay Sir..Thanks again for ur gr8 help for this project.Sir i had gathered many much information that was provided by you every where on the net <noauthor@nospam.com> http://www.8051projects.net/forum-t8667.html the above things has been explained many times on forum Please just take a look once.. only thing point i am gonna explain now is #3Negative Logic mea Ajay<contact@nospam.com> http://www.8051projects.net/forum-t8667.html I thank u Ajay Sir for ur humble support. Well sir there is a problem, u said that answers to the queries are available in one or another post for hom HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html Go through the fol. threads.You'll find all your answers...http://www.8051projects.net/forum-t183.html http://www.8051projects.net/forum-t1192.html sashijoseph<sashijoseph@nospam.com> http://www.8051projects.net/forum-t8667.html Ajay sir, u have mentioned opto couplers or relay drivers like ULN2003A for switching of relays. well can u plz provide a rough circuit diag for how t HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html wrote ...1) The circuit some times doesnt react after being connected. i.e. after the connected message displayed if we type the stat command, simply Ajay<contact@nospam.com> http://www.8051projects.net/forum-t8667.html Thanks Sashi for ur humble support, well maybe ajay sir is busy.Anyways,sashi i would be very thankful to u if u answered my doubts explained in the r HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html Thanks Again Ajay Sir..Well i had replaced my LCD with a new one.Also installed the serial port analyzer. But still the problem described by me contin HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html Sorry for the late reply......So you're using a P89C51.If I'm not mistaken it's a 6-clock uc as opposed to a standard 12-clock 8051.So that could be t sashijoseph<sashijoseph@nospam.com> http://www.8051projects.net/forum-t8667.html Thanks SashiJoseph for ur kind help. Well i would certainly reduce the baud rate but the flash magic software is continously displaying the error spe HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html Reduce the baudrate in Flashmagic to 4800 or 2400 and see if it programs..... sashijoseph<sashijoseph@nospam.com> http://www.8051projects.net/forum-t8667.html No, i had checked it and reduced the baud rate upto 2400. Well can u plz give me a circuit daig for the lcd only( i have the one provided for the comp HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html Well the ckt is already provided with the project.Regardless,here it is........ Plz check all your connections carefully esp the serial link,since you sashijoseph<sashijoseph@nospam.com> http://www.8051projects.net/forum-t8667.html Well, i have given my connections same as u provided.....But whats the matter with pin no 15 and 16. i gave 15 as vcc and 16 as ground.(as mentioned f HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html Would be safer to give Vcc to pin 15 through a 100 ohms current limiting resistor.So your lcd connections are ok.Write a small code to display sth on sashijoseph<sashijoseph@nospam.com> http://www.8051projects.net/forum-t8667.html Thanks Ajay Sir.for ur humble support.I was not available due to my final year eng exams. Well i rechecked the connections and found a missed connectn HackersParadise<mdshakieb001@nospam.com> http://www.8051projects.net/forum-t8667.html are you able to get messages from server to client and client to server?I want you to recheck your LED connections (+ve and -ve pins of LEDs)send me a Ajay<contact@nospam.com> http://www.8051projects.net/forum-t8667.html