Why only some example programs support TI-RTOS?

Hi Kaushal,

I need to run SmartConfig application on TI-RTOS. I have already installed TIRTOS from CCS Apps Centre. Can you please give us some more instructions on  configuring networking apps.   

Thank you,

Regards

Rakesh Reddy

Hi Rakesh,

    Follow the CC3200 Getting Started Guide. Then review example programs that uses SmartConfig.

- kel

Hi Kel and Kaushal

Thank you for your reply. I have gone through the CC3200 Getting started guide and examples. I have successfully used wlanstation application by importing a ti_rtos_config project. But when I was trying to port outofbox application I am getting the following error.

program will not fit into available memory. placement with alignment fails for section ".resetVecs" size 0x30c , overlaps with ".intvecs", size 0x400 (page 0)

linker.cmd /ti_rtos_config/Default/configPkg line 130 C/C++ Problem

I have tried changing the program size in cc3200v1p32.cmd file but still failed to build the project. Is there something I need to change in linker.cmd file which is linked to ti_rtos_config file. It seems to be messy if I start this
way.What is the best starting point to work on a networking application using tirtos.

Thank you,

Regards

Rakesh Reddy

Hi guys,

I have solved above problem by changing the vector table address in app.cfg script file as follows

Hwi.vectorTableAddress = 0x20005000;
Hwi.resetVectorAddress = 0x20005000;

The default ti_rtos_config project has the Location at 0x20004000 which was the program address in RAM(cmd file). So the problem has been solved. Thank you for your support guys.

Regards

Rakesh Reddy

Hi Rakesh,

I would recommend you keep the TI RTOS config as is.

Hwi.vectorTableAddress = 0x20004000;
Hwi.resetVectorAddress = 0x20004000

Please remove startup_ccs.c file from your CCS workspace and rebuild Out of Box project. Since in TI RTOS, Interrupt vector is initilized in TI RTOS, it need not be done in Application code.

Hi Kaushal,

Thank you for your quick response. I have removed the startup_ccs.c file and changed the .config script as before. I have also inserted the macro #define USE_TIRTOS  in the main file. I could successfully build the program with the above setup but I could not see any output on the Terminal and getting the following exception.

Exception occurred in background thread at PC = 0x2000e57c.
Core 0: Exception occurred in ThreadType_Main

Please guide me to solve the above problem. Is this something to do with the startup_ccs.c  file or there is some thing missing like initialization.

Thank you 

Regards

Rakesh 

Hi Kaushal,

What linker properties need to be changed?  I have installed the TI-RTOS SDK and included the ti_rtos_config project in my workspace.  I do not see how to do this in any of the documentation. 

al

The general instructions for building using TI RTOS are listed in the CC3200 User Guide 

http://www.ti.com/lit/ug/swru376a/swru376a.pdf

as part of Section 3.  Take special note of the required build-order. 

To change a freeRTOS project to TI RTOS:

(build simplelink)

(build ti_rtos)

Under oslib project /Properties/General:

(Note: you can NOT just select ti_rtos from the Configurations dropdown and click OK!)

Click Manage Configurations 

(oslib:Manage Configurations dialog is displayed)

Select ti_rtos

Click Active

Click OK

(Properties/General pane is displayed)

Change Configuration to ti_rtos (Active)

Click OK to save your property changes.

Rebuild oslib.

(build driverlib)

Under <your top-level project>/Properties/Build/Dependencies:

Remove any reference to free_rtos and add a reference to ti_rtos_config (not sure why this one dependency is present, given TI's instructions to build the libraries in a specific order, but ...)

Under <your top-level project>/Properties/Build/ARM Compiler/Advanced Options/Predefined Symbols:

Remove any define for USE_FREERTOS, and add USE_TIRTOS.

Under <your top-level project>/Properties/Build/ARM Linker/File Search Path:

Make sure that "${CC3200_SDK_ROOT}/oslib/ccs/ti_rtos/ti_rtos.a" is listed as a search path (and free_rtos is NOT).

Save your property changes.

Rebuild your top-level project

Everything was working fine for me for about a couple of weeks now, until all of a sudden this error occurred. Your answer, particularly to change the manage configuration of oslib project solved my issue. First i changed this then went on to build ti_rtos_config project and the problem was gone. I have no idea how it was set on freertos. Anyway. Thank you very much.