try what this thread is about:
http://www.picbasic.co.uk/forum/showthread.php?t=8193
also bypass your LCDpower pins with a .01 µ F cap.
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Re: Reset risetime seems to upset LCD on 18f4550
try what this thread is about:
http://www.picbasic.co.uk/forum/showthread.php?t=8193
also bypass your LCDpower pins with a .01 µ F cap.
If you do not believe in MAGIC, Consider how currency has value simply by printing it, and is then traded for real assets.
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Gold is the money of kings, silver is the money of gentlemen, barter is the money of peasants - but debt is the money of slaves
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There simply is no "Happy Spam" If you do it you will disappear from this forum.
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Re: Reset risetime seems to upset LCD on 18f4550
Thanks Joe S
The power is very well bypassed so I tried the FLAGS = 0 command and it worked but not without a bit of fiddling.
I reasoned that if any reset occurrs the software would be reinitialised but I must be wrong.
I first put the FLAGS command at the start of the program but that didnt work.
I then put it after the clearing and home commands with a pause before continuing as below.
Lcdout $fe, 1 'CLEAR
Lcdout $fe, $0C 'CURS OFF
Lcdout $fe, 2 'HOME
flags = 0
pause 2000
lcdout "Hello WORLD" ' WRITE
It was also neccessary to adjust the timing parameters quite carefully as below
DEFINE LCD_COMMANDUS 3000
DEFINE LCD_DATAUS 150
It now works from any kind of reset.
I have used literally hundreds of these displays with several PICS and 8051 types but never battled like this before!
Thanks again for the suggestion.
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