Yep... The extra code would be to clock out first 4 bits of the data/command then swap the nibbles and send the 4 remaining. It does take twice as long to send a single char though, as one has to observe the timing requirements of the display. KreAture ----- Original Message ----- From: "Tan Chun Chiek" To: Sent: Saturday, May 10, 2003 12:43 PM Subject: Re: [PIC]: LCD 4bit or 7bit? > i assume you are talking about communicating thru a 4bit or 8bit bus to a > HD44780 lcd. > > Pros of 4bit comms: only 7 I/O lines needed to interface. > Cons of 4bit comms: slightly more code required to drive the display > > Pros and cons of 8bit comms being directly the opposite of 4bit, with 8bit > needing 13 I/Os > > Regards, > Chun Chiek > > ----- Original Message ----- > From: "Tal" > To: > Sent: Saturday, May 10, 2003 6:31 PM > Subject: [PIC]: LCD 4bit or 7bit? > > > > Hi > > > > Can you explain what are the differences between the 4bit & 7bit regarding > > LCD displays? > > are they any differences at all? any limitations? when I should use 4bit > or > > 7bit? > > > > Regards > > > > Tal > > > > "I have not failed. I've just found 10,000 ways that won't work." > > Thomas Edison > > > > -- > > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > > > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body