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My project is finished (for the present)
This is a new Moving Message Display with a LPC2138 and 8(16) x 5x7 led matrix, working.
It uses a new and fast algorithm, written in C.
It is modular: it uses one or two same 8 char display unit(s).
Online commands (via rs232, in Virtual Terminal)
- scrolling by pixel or by character or by graphic - pause/continue scrolling - on/off one pixel gap between fonts - home function (back to the begin) - max. 127 chars displayable text - - - stored in the memory - scrolling speed up/down - single step left/right - ASCII char test - multi language characters (also full American) - default settings via switches - get/store settings from/to memory
Latest addition
- - - last typed char is deletable (backspace function), this was very difficult to code.
I'm going to attach here the two projects (for 8 and 16 chars) with the hex firmware only, beacuse I wrote the program in C but with many (70%) hard and hand optimalisation in C (for the speed). It is not a human readable program, sorry...
Please study also my next posts at this thread if you want to build this!
Try it!
About the source look at my next posts here!
Some you said is correct and some is incorrect.
You will learn much from the code.
Soon.
Hi There ,
can you send me the code for the display since i am learning to the programming of the arm micros and if you have some code for the rtos on the arm do sne dme that.
Thanks in Advance
Jitender singh saggu
But the OP said, "...hard and hand optimalisation in C (for the speed). It is not a human readable program, sorry..."
So that is really not the kind of stuff that you need to be looking at when you're a beginner!
There are plenty of usable examples on this site in the downloads area; There's a list of ARM (and other) programming books here: http://www.keil.com/books
"...do sne dme that..."
One thing that you need to learn with programming in any context is attention to detail.
While a human reader may be able to work out what you meant there, a compiler will not!
Hi dear moderators;
This post (and all post from this author too): "A totally new 8 or 16 char Moving Message Display with LPC2138" (author: icq 217812938)
is a crude forgery (and theft). The original link (written by me a long ago): www.sonsivri.com/.../index.php
It's really just "icing on the cake", it's written for a PIC not for ARM.
Unfortunately, there are such people ...
Regards zuisti (the real)