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Question on xTimerStart returned type

Posted by learningperson on October 12, 2017

Hello, I'm completely new, (at the level of beginning at reading the manual) and I kindly request some information.

Question: In the "Mastering the FreeRTOS TM Real Time Kernel" copy 161204, Listing 74 documentation, should the discription of xTimerStart have a returned value of BaseTypet instead of TimerHandlet?

TimerHandlet xTimerStart( TimerHandlet xTimer, TickTypet xTicksToWait ); // what is on Listing 74. BaseTypet xTimerStart( TimerHandlet xTimer, TickTypet xTicksToWait ); // what I think it should be.

BaseTypet would be consistant with the example code in listing 75: BaseTypet xTimer1Started, xTimer2Started;

And BaseType_t would be consistant with table 28: returned value of pdPASS or pdFALSE.

For example: pdPASS or pdFAIL is of type BaseType_t in the listing 13 documentation for xTaskCreate:

BaseTypet xTaskCreate( TaskFunctiont pvTaskCode, const char * const pcName, uint16t usStackDepth, void *pvParameters, UBaseTypet uxPriority, TaskHandle_t *pxCreatedTask );

Thank you in advance for your help.


Question on xTimerStart returned type

Posted by rtel on October 15, 2017

Apologies for the delay in replying - you are right - it is an error in the book text as the return type is BaseType_t. You can see the actual function in FreeRTOS/source/include/timers.h.


Question on xTimerStart returned type

Posted by learningperson on October 17, 2017

Thank you for helping me. I think the book is very well written.


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