TOP Contributors

  1. MIKROE (2784 codes)
  2. Alcides Ramos (405 codes)
  3. Shawon Shahryiar (307 codes)
  4. jm_palomino (133 codes)
  5. Bugz Bensce (97 codes)
  6. S P (73 codes)
  7. dany (71 codes)
  8. MikroBUS.NET Team (35 codes)
  9. NART SCHINACKOW (34 codes)
  10. Armstrong Subero (27 codes)

Most Downloaded

  1. Timer Calculator (141361 times)
  2. FAT32 Library (74205 times)
  3. Network Ethernet Library (58777 times)
  4. USB Device Library (48854 times)
  5. Network WiFi Library (44564 times)
  6. FT800 Library (44149 times)
  7. GSM click (30883 times)
  8. mikroSDK (29739 times)
  9. PID Library (27372 times)
  10. microSD click (27309 times)
Libstock prefers package manager

Package Manager

We strongly encourage users to use Package manager for sharing their code on Libstock website, because it boosts your efficiency and leaves the end user with no room for error. [more info]

< Back
Library

CRTOS for PIC32

Rating:

10

Author: dany

Last Updated: 2016-02-25

Package Version: 1.0.0.0

Category: Other Codes

Downloaded: 1523 times

Followed by: 1 user

License: MIT license  

Cooperative Real Time Operating System (CRTOS) for PIC32

No Abuse Reported

Do you want to subscribe in order to receive notifications regarding "CRTOS for PIC32" changes.

Do you want to unsubscribe in order to stop receiving notifications regarding "CRTOS for PIC32" changes.

Do you want to report abuse regarding "CRTOS for PIC32".

  • Information
  • Comments (0)

Library Blog

PIC32 version of the CRTOS library (http://www.libstock.com/projects/view/722/c-rtos-for-mp-and-mb-p18-and-p24) already available for PIC18 and PIC24.

CRTOS stands for Cooperative Real Time Operating System; designed for and written specifically in mP/mB from mikroElektronika. The system uses cooperative as opposed to pre-emptive scheduling which means that the application code you write has to voluntarily release back to the operating system at appropriate times.

The PIC32 mP version was tested on the mini32 board (P32MX534F064H with 80 Mhz CPU clock).

CRTOS supports the following features:

  • Task priorities
  • Tasks can have local variables of which the values are preserved between task invocations.
  • Unconditional yielding to the CRTOS Scheduler
  • Timed yielding to the CRTOS Scheduler (i.e. “delay” performed by the Scheduler)
  • Binary semaphores
  • Counting semaphores
  • Waiting for semaphores with or without timeout
  • Clearing semaphores
  • Starting and stopping tasks
  • Starting tasks with an initial delay
  • Signaling semaphores from within an Interrupt Service Routine
  • An "Always" procedure in every scheduler loop (optionally)

Have fun!

 


2015-05-26: Small improvement in the "Restore_Registers" code. Also reduced the code size with approx. 1 Kb.   No functionality changes.    


2015-05-28: Corrected a small issue in "Restore_registers.inc". No functional change.


2015-05-31: Added the mB package.

ALSO FROM THIS AUTHOR

Article: Record Member alignment for PIC24/dsPIC and PIC32

1

Describes how record members are stored internally in their records, and what problems to expect if that is not taken into account.

[Learn More]

Article: Ram corruption reasons in mP and mB

5

Purpose: Make people aware about the ways of working that can introduce ram corruption (and of course how to avoid it). In this document the many ways where it goes right are not mentioned, only the danger areas are highlighted.

[Learn More]

Thermostat with DS1820

5

Usage of the Ds1820 (one wire temp sensor) to control a heating system. Provides 2 different temp settings (e.g. day and night settings). Proportional control of the heater (which is basically on/off controlled) using PWM like method with a 1 minute timebase (x minutes on, y minutes off).

[Learn More]