I am using a CORTEX-M4 micro controller board. Could you send me an Assembly example for programming the board?
In order to give you an idea of what Cortex-M4 code could look like, I'm attaching one of my own assembly sources.
The code will not be very useful as it is; you wouldn't be able to run it on your microcontroller, but you would be able to learn a few different instructions and a few assembler-directives from looking at it.
I'm attaching a file instead of posting it, because the tabulations get destroyed, thus making it almost unreadable.
(Note: The file is written for tab-size 4)
Assembler directives start with a dot, for instance ".include" is a directive.
I've chosen to make my macros uppercase. For instance "QFUNCTION" is neither a directive, nor an assembler-instruction.
In the example, you'll see how I use one of GCC's nice features, recursive macros, in order to 'draw' characters in the source-code.
This makes it very easy to see what the characters look like.
To learn the instruction set, I recommend going to the ARM Information Center and click...
"Cortex-M series processors", then ...
"Cortex-M4", then ...
"Revision: r0p1", then ...
"Cortex-M4 Devices Generic User Guide", then ...
"The Cortex-M4 Instruction Set".
... and you're good to go.