RTOS/TM4C1294NCPDT: Get and Set error number

Harshel

Intellectual 955 points

Part Number: TM4C1294NCPDT
Other Parts Discussed in Thread: SYSBIOS

Tool/software: TI-RTOS

Hi,

I would like to about APIs for get and set error number.

I have to check status of some API call.

For example I have to implement as below:

/* Set Error number */

SetErrNo();

/* Copy string */

strcpy();

/* Get error number */

GetErrNo();

How can I do above implementation using TI-RTOS APIs ? Please suggest APIs or implementation for highlighted APIs (These are dummy APIs).

Best Regards,

Harshal

over 6 years ago

0 Charles Tsai over 6 years ago

TI__Guru**** 191186 points

Hi,
Please refer to the section 6.7 in the SYS BIOS user's guide about the Error Module and error handling in TI-RTOS. www.ti.com/.../spruex3t.pdf

You may also find the below thread helpful for your question.
e2e.ti.com/.../748839

0 Harshel over 6 years ago in reply to Charles Tsai

Intellectual 955 points

I referred examples from TI resource explorer for error block.

While using error block, we need to pass argument of type "Error_Block" to function e.g., Hwi_create(, , , Error_Block*).

1. Is it possible to get error by this way for APIs those does not have this "Error_Block" type of argument e.g. Semaphore_Params_init() ?

2. Also if I use Hwi_create(, , , Error_Block* NULL) like this does this give me error ID by any of the way ?

0 Charles Tsai over 6 years ago in reply to Harshel

TI__Guru**** 191186 points

Hi,
I think you can take a look at this wiki page processors.wiki.ti.com/.../TI-RTOS_Object_Creation_Comparison or refer to the sys/bios kernel API guide dev.ti.com/.../Semaphore.html.

#include <ti/sysbios/knl/Semaphore.h>
...
Semaphore_Handle semaphore0;
Semaphore_Params semaphoreParams;
Error_Block eb;
Error_init(&eb);
Semaphore_Params_init(&semaphoreParams);
semaphore0 = Semaphore_create(0, &semaphoreParams, &eb);
if (semaphore0 == NULL) {
…
Semaphore_post(semaphore0);

Please also refer to the runtime error manager and supported APIs. http://rtsc.eclipse.org/cdoc-tip/xdc/runtime/Error.html

0 Harshel over 6 years ago in reply to Charles Tsai

Intellectual 955 points

Hello,
I have clear understanding about object creation.

As error block updates error information only when we pass it as an argument to respected function.

I would like to know e.g. Semaphore_Params_init() does not have argument of type error block, in such all other functions, does this error block is updated with error or not ?