Quantum Leaps dd37652551 5.5.0
2015-09-29 11:34:38 -04:00
..
2015-09-29 11:34:38 -04:00
2015-09-29 11:34:38 -04:00
2015-05-14 16:05:04 -04:00

About this Example
==================
This example demonstrates how to use the uVision IDE together with
the MDK-ARM toolchain.


uVision Project File
====================
The MDK-ARM uVision project file provided with this example uses relative
paths to the QP/C framework location (includes QP port). These relative
paths must be modified when the project is moved to different relative
location.


Adjusting Stack and Heap Sizes
==============================
The stack and heap sizes are determined in this project by the command-
line options for the ARM assembler (see the Asm tab in the "Options for
Target" dialog box in uVision). Specifically, you should define symbols:
Stack_Size=xxx Heap_Size=yyy, where xxx represents a numerical value of
stack size and yyy the numerical value of the heap size.

***
NOTE:
C++ programs seem not to tolerate heap size of 0. Therefore it is
recommended to set the Heap_Size symbol to a minimal value of 16.  
***   
   

Startup Code
============
The startup code for the LM3S811 MCU used in this project is
located in the "3rd_party" folder in the following location:

3rd_party\ek-lm3s811\arm\startup_LM3S811.s

The file startup_LM3S811.s provides a template of the recommended
startup for QP applications and should be easily customizable for other
ARM Cortex-M microcontrollers.

The startup file typically does not need to be modified or adapted for
applications. It provides only weak definitions of all exception and
interrupt handlers, as well as the assert_failed() function.  

The weak function assert_failed() defined in this file might be re-defined
in the application to customize it for the application-specific error-
handling policy.

***
NOTE: The function assert_failed() typically should NOT use the stack,
because stack might be corrupted by the time this function is called.
Also, assert_failed() is intended to handle catastrophic errors and
should NOT return.
***