RTOS/MSP432E401Y: The difference between Task and pthread

user5001102

Prodigy 120 points

Part Number: MSP432E401Y

Tool/software: TI-RTOS

Hi:

I'm debugging the ti_154_gateway_ibm code on the MSP432E401Y launchpad，there are two questions as follows：

（1）I don't understand why there are tasks and pthreads in programs，what is the difference between Tasks and pthreads；

（2）Which is the highest priority？MqttClient and MqttClientThread have the same priority？

thanks！

over 7 years ago

0 Sean Oliver28 over 7 years ago

TI__Intellectual 1060 points

Hi there!

TI RTOS supports a subset of the POSIX API which allows for more portable code in our products as well as for customers. For example we support pthreads, which under the covers are implemented using SYS/BIOS tasks. This also means that priorities are equivalent between tasks and pthreads. A task priority 5 is the same priority with a pthread with priority 5. Higher number priorities run before lower number priorities. For more information on our POSIX support, please see this page:
processors.wiki.ti.com/.../BIOS_POSIX_Thread_(pthread)_Support

As for why they are both used in the code you are looking at, I can only guess that the original implementation used tasks and some parts were converted or added using POSIX API's. Which files exactly were you looking at?

If you have any further questions please let me know, thanks.

Sean

0 ToddMullanix over 7 years ago in reply to Sean Oliver28

TI__Guru* 96960 points

We are now shipping the POSIX UG in the SDK (docs\tiposix\Users_Guide). It has the most up to date information.

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RTOS/MSP432E401Y: The difference between Task and pthread