| ??? 07/25/05 23:21 Read: times |
#98099 - Alternative approach Responding to: ???'s previous message |
Dan Henry said:
Assuming you are referring to the ubiquitous HD44780-controlled LCDs, keep separate line character buffers and store your characters there first, then write to the display from the buffer(s). To scroll (presumably left of right), shift the characters in the buffer and rewrite the buffer(s) to the display. It's not entirely clear to me what he means by "with out spilling onto another line". That could mean he wants to keep displaying more data on the same line and scroll to the right rather than "wrapping" to the next display line, or it could mean he only wants to scroll one line left/right while the remaining three lines don't move. The HD44780s have the ability to scroll the contents of the screen right and left, but that assumes he wants to scroll all four lines right and left at the same time. Sovan, we need a little more information on exactly what it is you're trying to do. Regards, Craig Steiner |
| Topic | Author | Date |
| 20*4 lcd | 01/01/70 00:00 | |
| Buffer, shift, then write | 01/01/70 00:00 | |
| Alternative approach | 01/01/70 00:00 | |
| lcd | 01/01/70 00:00 | |
| It is easy! | 01/01/70 00:00 | |
| Software Control! | 01/01/70 00:00 | |
| Software is the answer | 01/01/70 00:00 | |
awesome | 01/01/70 00:00 |