mirror of
https://github.com/QuantumLeaps/qpcpp.git
synced 2025-01-28 06:02:56 +08:00
39 lines
1.5 KiB
Plaintext
39 lines
1.5 KiB
Plaintext
|
About this Example
==================
This directory contains the simple "Blinky" QP-RTX example application
|
||
|
|
for the EK-TM4C123GXL board, a.k.a. TivaC LauchPad (ARM Cortex-M4F).
|
||
|
|
|
||
|
|
Limitations of the Blinky Demo
|
||
|
|
------------------------------
|
||
|
|
The "Blinky" demo is specifically kept small and simple to demonstrate
|
||
|
|
the basic bare-bones application quickly.
|
||
|
|
|
||
|
|
However, to achieve this simplicity, the demo intentionally omits
|
||
|
|
many features of QP, such as: multiple active objects, dynamic events
|
||
|
|
(event pools), publish-subscribe event delivery, or QS software tracing.
|
||
|
|
|
||
|
|
Please refer to more complete examples (such as the "Dining Philosophers
|
||
|
|
Problem" (DPP) for demonstration of the aforementioned features.
|
||
|
|
|
||
|
|
|
||
|
|
Support Code for EK-TM4C123GXL Board
|
||
|
|
====================================
|
||
|
|
The directory qpc\3rd_party\ek-tm4c123gxl contains the CMSIS-compliant
|
||
|
|
device code for the TM4C123GH6PM MCU (ARM Cortex-M4F). Please see the
|
||
|
|
README.txt file in this folder for more details.
|
||
|
|
|
||
|
|
|
||
|
|
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.
|
||
|
|
***
|
||
|
|
|