Passing arguments to one thread from another

SB54399

Hello!!

I would like to know that how can an argument be passed from one task to another task? Although i am able to pass Globally declared variable to a task but i would appreciate if told of how to pass a variable after processing from a body of one task as an argument to the next upcoming task.

Thanks

over 15 years ago

0 Mariana over 15 years ago

TI__Mastermind 24340 points

Hi SB,

You can use a mailbox (MBX) or a semaphore (SEM).

Please see:

TMS320C6000 DSP/BIOS User's Guide

BIOS API guide

0 SB54399 over 15 years ago in reply to Mariana

Prodigy 120 points

yes semaphore can be used to control the writing of data from multiple threads but that too is for global data... I wanted to know how can i transfer locally declared variable and its data of one task to another task? It would be equivalent to that of passing data between functions. can pipes be used to transfer data between tasks??

0 Mariana over 15 years ago in reply to SB54399

TI__Mastermind 24340 points

SB said:
yes semaphore can be used to control the writing of data from multiple threads but that too is for global data... I wanted to know how can i transfer locally declared variable and its data of one task to another task?

You can use a mailbox. It does not have to pass a global variable, the content is copied from the local variable to the MBX buffer. See example on page 132 of the TMS320C6000 DSP/BIOS User's Guide .

SB said:
It would be equivalent to that of passing data between functions. can pipes be used to transfer data between tasks??

Yes, you can use pipes as well.

Processors

Processors forum

Passing arguments to one thread from another