Difference between revisions of "FreeRTOS"

Revision as of 21:05, 11 May 2018

Overview

Ted starting a wiki page to hold notes and findings from working through demos and tutorials on FreeRTOS operating system. First goals include:

• Learning what target CPUs, dev boards and systems run FreeRTOS
• Learning what emulators run and support testing of FreeRTOS instances

^ First Topics Explored

RTOS fundamentals covered in pages of FreeRTOS site:

• https://www.freertos.org/implementation/a00002.html

These initial links will likely be moved or removed, they're just first places Ted checked out at FreeRTOS site:

• https://www.freertos.org/rtos-trace-macros.html
• https://freertos.org/a00110.html#configASSERT

- 2017-12-27 WED - FreeRTOS demo applications described in overview fashion at https://www.freertos.org/a00102.html.

• https://www.freertos.org/a00017.html . . . source code organization,
• https://www.freertos.org/a00090.html . . . FreeRTOS ports, each its own web page,

^ FreeRTOS Ported To Microcontroller Families

- 2017-12-15 FRI -

FreeRTOS ports to various microcontroller families:

• https://www.freertos.org/a00090.html

^ Specific Boards Usable with FreeRTOS

2018-04-10

Singleton Pattern mentioned in section named "Basics" in the following wiki document about San Jose State University LPC1758 dev board:

• http://socialledge.com/sjsu/index.php/SJ_One_Board
  • http://socialledge.com/sjsu/index.php/Main_Page
  • http://socialledge.com/sjsu/images/d/de/2012SJOneBoardSchematic.pdf

# # # Trouble-shooting Related Notes Follow # # #

^ FreeRTOS Architecture

Task Control Block (TCB) memory allocation . . .

• https://www.freertos.org/FreeRTOS_Support_Forum_Archive/January_2018/freertos_Task_control_block_memory_allocation_55c3c1a5j.html

^ Task Control Block - TCB

Exploring the Task Control Block and stack implementations of FreeRTOS. Following forum post mentions stack checking as a feature of FreeRTOS 7.1 which can be enabled. This post also mentions interrupt priorities which range from 1 to 15:

• https://www.freertos.org/FreeRTOS_Support_Forum_Archive/December_2012/freertos_pxCurrentTCB_corrupted_6477695.html

^ References

• https://www.freertos.org/History.txt . . . change history in text format gives a list of FreeRTOS stable releases
• https://www.freertos.org/a00104.html . . . source code download instructions