LCD multiple/repeated initialization - Electronic Circuits Projects Diagrams Free

emman · 28th June 2006, 09:18 AM

Hi, is it ok to initialize LCD module every i attempt to display characters? my purpose is to ensure that the LCD will really display it because there are times that even after initializing and displaying few words, the LCD goes erratic but recovers when initialized again. Hope someone can help me. thanks

akg · 28th June 2006, 12:38 PM

i donno ur problem excatly .. but i believe the problem can be overcome by proper coding. u have to find out why the lcd goes erratic .

emman · 28th June 2006, 01:28 PM

Thanks for your help. One scenario that I am trying to prevent is when LCD power went off then back again or simply power supply problem. Then the controller has no idea that a problem occured on the LCD then it tries to display text again but was not successful because it needed to be initialized again. Thanks

**Nigel Goodwin** · 28th June 2006, 01:34 PM

If the LCD power is going off, then the controller power should be going as well, so it will reset as it restarts, and initialise as normal.

There's no problem initialising the display everytime you use it, but you're slowing it down drastically - you should cure your problems, rather than try and bodge round them!.

emman · 30th June 2006, 03:41 PM

Thanks Nigel. You are right that I should solve the power issue. There was also instances wherein someone tries to hold the display, then the lcd went out. but was able to recover when it was initialized again. It was an ESD issue. Re initialization would address the problem but i think you would recommend that I should address the ESD issue instead. Thanks again for the help

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28th June 2006, 09:18 AM	(permalink)
emman	LCD multiple/repeated initialization Hi, is it ok to initialize LCD module every i attempt to display characters? my purpose is to ensure that the LCD will really display it because there are times that even after initializing and displaying few words, the LCD goes erratic but recovers when initialized again. Hope someone can help me. thanks

28th June 2006, 12:38 PM	(permalink)
akg	i donno ur problem excatly .. but i believe the problem can be overcome by proper coding. u have to find out why the lcd goes erratic . __________________ Gods own Country Incredible !ndia www.flickr.com/photos/_akg/ "Give a man a fish, and he will eat for a day. Teach that man to fish, and he will eat for a lifetime."

28th June 2006, 01:28 PM	(permalink)
emman	Thanks for your help. One scenario that I am trying to prevent is when LCD power went off then back again or simply power supply problem. Then the controller has no idea that a problem occured on the LCD then it tries to display text again but was not successful because it needed to be initialized again. Thanks

28th June 2006, 01:34 PM	(permalink)
Nigel Goodwin	If the LCD power is going off, then the controller power should be going as well, so it will reset as it restarts, and initialise as normal. There's no problem initialising the display everytime you use it, but you're slowing it down drastically - you should cure your problems, rather than try and bodge round them!. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

30th June 2006, 03:41 PM	(permalink)
emman	Thanks Nigel. You are right that I should solve the power issue. There was also instances wherein someone tries to hold the display, then the lcd went out. but was able to recover when it was initialized again. It was an ESD issue. Re initialization would address the problem but i think you would recommend that I should address the ESD issue instead. Thanks again for the help