Go to Triangle Digital Support Home Page SOFTWARE
Multitasking
 
Live website search
Enter key words
 

Make use of the TDS2020F's power by making it do the job of many dedicated computers.

Three forms of multitasking are available on TDS2020F embedded computer:


l       Interrupt Multitasking where an interrupt swaps the Forth system for a new one at regular intervals. Each time it runs one pass through a high-level Forth word and then returns, so forming a background loop. This is a standard feature of TDS2020F in the Forth ROM.


l       Co-operative Multitasking is the traditional Forth 'Round Robin' multitasker where one task takes control until the word PAUSE is met which causes a task switch to the next in the ring. This word is already placed in input/output and delay causing routines.


l       Pre-emptive Multitasking is like Co-operative Multitasking in that it allows I/O and delays to cause a task switch, but no task can hog the processor for more than 10ms (default value). After this time the task is forced to give up control to the next one.


To receive the multitasking files you must join the Update Service

CLICK for on-line
TDS2020F Technical Manual Multitasking:
Overview
Fast Start Guide
Resource locks
Multitasking Forth word definitions


Pre-emptive multitasking operation
Go to Triangle Digital Support Home Page Go to top   Next page