This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

LCD PROBLEM

PRANAM gharat over 18 years ago

hi,i am working on lpc 2106 .i have interfaced lcd in 4bit mode succesfully.

pins i used when it is working. EN=P0.22 RS=PO.23

D4=P0.3 D5=P0.4 D6=P0.5 D7=P0.6

but to use spi port i have changed data lines
to
D4=P0.26
D5=P0.27
D6=P0.28
D7=P0.29

direction control and pinsel i have checked several times it seems to be ok.

is DGBSEL need to be grounded?
i heve left unconnected is this the cause of problem?