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CC3220SF: What is eventCallback in UART2.h? When use it?

Lishen Tung
Intellectual 410 points
Part Number: CC3220SF


Hi, Support Team,

 

Our product use CC3220SF SoC. SimpleLink-SDK version: simplelink_cc32xx_sdk_4_30_00_06.

 

My question:

1.I watch example code “uart2echo”, in UART2.h, I see the UART2_Params struct. I have question what is eventCallback ?

2.When we need use eventCallback ?

 

Best Regards,

Lishen

  • 0
    TI__Guru 63006 points

    if you want to track internal events on the UART, you can use the eventCallback. It is a function that you define in your application (see the prototype with the possible events below) and it will get invoked whenever an event occurs.

    /*!
* @brief The definition of a callback function used by the UART driver.
* The callback can occur in task or interrupt context.
*
* @param[in] UART2_Handle UART2_Handle
*
* @param[in] event UART2_EVENT that has occurred.
*
* @param[in] data - UART2_EVENT_OVERRUN: accumulated count
* - UART2_EVENT_BREAK: unused
* - UART2_EVENT_PARITY: unused
* - UART2_EVENT_FRAMING: unused
* - UART2_EVENT_TX_BEGIN: unused
* - UART2_EVENT_TX_FINISHED: unused
*
* @param[in] userArg A user supplied argument specified
* in UART2_Params.
*
* @param[in] status A UART2_STATUS code indicating
* success or failure of the transfer.
*/
typedef void (*UART2_EventCallback) (UART2_Handle handle, uint32_t event,
uint32_t data, void *userArg);