Hallo, Rolf, seems you have some experience with LCDs. Are there any displays with other controllers which allow a full set of inverted characers? To be precise, I do not need the whole 255 ASCIIs but at least A-Z and 0-9 and some others like a dash or so. Thanks Peter Also changed tag, thanks to Vic. ----- Original Message ----- From: "Rolf" To: "Microcontroller discussion list - Public." Sent: Sunday, July 19, 2009 2:40 PM Subject: Re: [EE:] Inverted LCD display > Hi Peter. > > That unit is based on the HD44780 controller, which has no simple > 'invert' option. > > If the 'invert line' is required, you can implement it by programming > the characters you need in an inverted format in to the CGRAM, and then > display these inverted characters. You are limited to 8 unique > characters though, and your PIC will need to be able to program all the > characters you need in to the CGRAM. > > Rolf > > Peter Feucht wrote: >> Hi, all, >> >> sitting here on Sunday writing some code snippets to test my LCD... >> >> It's a 4 line LCD matrix text display, 40 characters each line, type >> EAW404B-NLW from Electronic Assembly. >> Everything works so far, I can write characters. >> >> My application needs to show a list of items shown in 4 lines, the user >> can >> then choose one of them by moving a cursor. >> BUT: I need to indicate the selected item by *inverting* the line. >> I read the data sheet over and over but cannot find any hint how to >> invert >> the displayed information. And no chance to call the manufacturer for >> it's >> Sunday... >> >> Has anybody done this before? >> >> Any help greatly appreciated! >> >> Thanks and have a nice weekend. >> >> Peter >> >> > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist