CCS C Compiler Manual PCB / PCM / PCH

task that is scheduled to execute at the appropriate time. This
process is called cooperative multi-tasking.
Syntax:
Elements:
#USE RTOS (options)
options are separated by comma and may be:
timer=X
Where x is 0-4 specifying the timer used by the
RTOS.
minor_cycle=time
Where time is a number followed by s, ms, us, ns.
This is the longest time any task will run. Each
task's execution rate must be a multiple of this
time. The compiler can calculate this if it is not
specified.
statistics
Maintain min, max, and total time used by each
task.
This directive tells the compiler which timer on the PIC to use for monitoring and
when to grant control to a task. Changes to the specified timer's prescaler will
effect the rate at which tasks are executed.
Purpose:
This directive can also be used to specify the longest time that a task will ever take
to execute with the minor_cycle option. This simply forces all task execution rates
to be a multiple of the minor_cycle before the project will compile successfully. If
the this option is not specified the compiler will use a minor_cycle value that is the
smallest possible factor of the execution rates of the RTOS tasks.
If the statistics option is specified then the compiler will keep track of the minimum
processor time taken by one execution of each task, the maximum processor time
taken by one execution of each task, and the total processor time used by each
task.
When linking multiple compilation units, this directive must appear exactly the
same in each compilation unit.
Examples:
Also See:
#use rtos(timer=0, minor_cycle=20ms)
#TASK
#use spi
Syntax:
Elements:
#USE SPI (options)
Options are separated by commas and may be:
MASTER
Set the device as the master. (default)
SLAVE
Set the device as the slave.
BAUD=n
Target bits per second, default is as fast as
possible.
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