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API GATT_WriteCharValue in cc2540



Hi,

I'm developing an application on cc2540 using the example code.

about the API GATT_WriteCharValue i understad that

"If the return status from this function is SUCCESS, the calling application task will receive an OSAL GATT_MSG_EVENT message. The type of the message will be either ATT_WRITE_RSP or ATT_ERROR_RSP".

i want to know if the osal message is recived when the packet is really send to the server or not (first the calling task receive the osal message and than at the next connection event the packet is send).