LCD shift problem

[RF]

Hi,

I'm using a 2x16 LCD display. I'm trying to display two text messages (strings) - one on the top line and another one on the bottom line. I would like to shift the top message to the right, and shift the bottom message to the left. I’ve now got these 2 requirements working.

However, is it possible for both messages to shift at the same time (ie. top shift to the right and bottom shift to the left at the same time)? If so, how can the functions in lcd.c (from CCS library) be utilized?

I welcome all suggestions.

RF
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This message was ported from CCS's old forum
Original Post ID: 144514808

[Tomi]

I don't know your LCD type but usually the multiline LCDs have a 64-byte buffer for each line. This is the reason why you must to set the display address to 64 to access the 2nd line.
The physical LCD panel could be imagined as a 16X2 size window on the 64X2 storage. So all in all usually you could not implement differential shift directions.

:=Hi,
:=
:=I'm using a 2x16 LCD display. I'm trying to display two text messages (strings) - one on the top line and another one on the bottom line. I would like to shift the top message to the right, and shift the bottom message to the left. I’ve now got these 2 requirements working.
:=
:=However, is it possible for both messages to shift at the same time (ie. top shift to the right and bottom shift to the left at the same time)? If so, how can the functions in lcd.c (from CCS library) be utilized?
:=
:=I welcome all suggestions.
:=
:=RF
___________________________
This message was ported from CCS's old forum
Original Post ID: 144514809

[RF]

Sorry, the LCD type is 16x2 (not 2x16). Yes, each line has 64 bytes of buffer. Location (1,1) at address $00 and location (1,2) at address $40.

Yes, I think you are right, you could not implement shift left and right at the same time to both lines. Instead, I'll shift right the top message then shift left the bottom message.

Thanks for your comments.
RF

:=I don't know your LCD type but usually the multiline LCDs have a 64-byte buffer for each line. This is the reason why you must to set the display address to 64 to access the 2nd line.
:=The physical LCD panel could be imagined as a 16X2 size window on the 64X2 storage. So all in all usually you could not implement differential shift directions.
:=
:=:=Hi,
:=:=
:=:=I'm using a 2x16 LCD display. I'm trying to display two text messages (strings) - one on the top line and another one on the bottom line. I would like to shift the top message to the right, and shift the bottom message to the left. I’ve now got these 2 requirements working.
:=:=
:=:=However, is it possible for both messages to shift at the same time (ie. top shift to the right and bottom shift to the left at the same time)? If so, how can the functions in lcd.c (from CCS library) be utilized?
:=:=
:=:=I welcome all suggestions.
:=:=
:=:=RF
___________________________
This message was ported from CCS's old forum
Original Post ID: 144514814