need help with a tricky lcd mode

[honza]

hello ladies and gents

i was just wondering if anyone has tried this or had the code for a special function for an lcd. I want the be able to have "highlighted" words/characters on an lcd. im trying to use it for a menu function where the user can scroll up or down on the lcd and the selected menu item would be "highlighted" by this i mean that on a regular lcd the character is defined by bits that are lighted up, but i want the whole line/word to be lighted up and only the bits that define the charater would be off.
any info or help is appreciated jon

[SteveS]

Don't know of any LCDs that allow this inherently. I used to use the underline cursor to do what you want. Not quite as effective I know.

A possibility would be to use the 8 programmable charcters - this would allow you to have 8 different characters at a time in reverse. Perhaps you coudl highlight just the first character - or keep the menu item names short.

- SteveS

[Douglas Kennedy]

It depends on the lcd controller. Some controllers have character generators that have the option of inverting the bit display of the character and even anding and oring it with a graphical background. If your particular lcd controller can't do it.... then as Steve says you'll have to roll your own via custom characters.

[SteveS]

Thanks for updating me Douglas. I haven't done much LCd stuff in the recent years - figures they are more whiz-bang now.

In the end, honza, you'll need to discover what controller is in the LCD you are using, then find a data sheet, then try to decipher it. Some are really good and clear, some others ....... But, if you post the LCD type or controller maybe someone knows it.

- SteveS

[karth]

I have done similar at ease, i was using the AZ Display, What type of LCD are you using??? Refer to the chipset specification instead of the LCD specification.