RTOS/TDA2PXEVM: No free semaphore found

Amol Kulkarni

Intellectual 875 points

Part Number: TDA2PXEVM

Tool/software: TI-RTOS

Hello,

We are using PROCESSOR SDK 03.03.00.00. We have created a new usecase which consists of only 2 links on IPU1_0 core.

One of the links is for the CAN-FD and other is a test link for sending commands to the CAN-FD link.

It is working fine when we select the our usecase from the menu.

But when we select our camera usecase "Chains_issIspSimcop_Display" we are observing issue shown below.

If we comment the init call of CAN-FD link from the system_initDeinitLinks.c file, "Chains_issIspSimcop_Display" usecase works fine without any such errors.

Following API's are used in the CAN-FD init link API:-

1. System_registerLink for registering the link

2. Utils_tskCreate to create main task for CAN-FD link.

Queries:-

1. Does a task creation for the link in the link init API affects other link ?

2. Is there any MAX COUNT for the semaphores that need to be changed if a new link is added in vision sdk ?

Regards,

Amol

over 7 years ago

0 Chetan Matad over 7 years ago

TI__Expert 3970 points

Hi Amol ,

You need to increase the max number of semaphores when you have added a link / more number of semaphore
ti_components\drivers\pdk\packages\ti\drv\vps\include\osal\bsp_osalCfg.h

BSP_OSAL_CFG_MAX_SEM_OBJECTS 1024 change it to higher number

Regards
Chetan.M

0 Amol Kulkarni over 7 years ago in reply to Chetan Matad

Intellectual 875 points

Hello Chetan,

Thank you for the reply.
The change to increase the number of semaphore worked and the issue is resolved.

But, we have created many links and never faced this issue.
Now, we have added only 2 links to the PROCESSOR SDK and observed this issue. Also there is no document mentioning this change on addition of links.

Regards,
Amol

0 Chetan Matad over 7 years ago in reply to Amol Kulkarni

TI__Expert 3970 points

Hi Amol,

Good the issue is resolved.
Please close the thread

In a system not all links are used , So you remove the un used links then those will not be created.
SDK had kept some buffer and set a higher value for the number of semaphore objects,
Now only addition of link it has crossed the limit,

Regards
Chetan.M

0 Amol Kulkarni over 7 years ago in reply to Chetan Matad

Intellectual 875 points

Hello Chetan,

Thank you for the support.

Regards,
Amol

0 Sujith over 7 years ago in reply to Amol Kulkarni

TI__Genius 12455 points

Hi Amol.

Before you added new links, you could print stats with "p", which should show you the used semaphore count.

Regards, Sujith

0 Amol Kulkarni over 7 years ago in reply to Sujith

Intellectual 875 points

Hello Sujith,

Thank you for the information.

Regards,
Amol

Processors

Processors forum

RTOS/TDA2PXEVM: No free semaphore found