[GATT_WriteLongCharValue] Large data size (300 bytes) results in incomplete writes

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    • Type: Bug
    • Resolution: Fixed
    • Priority: High
    • SimpleLink Lowpower SDK F3 BLE5 Stack
    • BLE_LOKI-694
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    • CC23XX
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      1. GATT_WriteLongCharValue redefined as an extended command in the Tester_HCILib xml files, i.e "Custom Command" in order to support data size >= 248 bytes.
      2. ATT_HandleValueNoti event defined also for HCI_Vendor_Specific_Event_Ext, which is the same as HCI_Vendor_Specific_Event, but supports events that has a length bigger then 256 bytes.
      Show
      1. GATT_WriteLongCharValue redefined as an extended command in the Tester_HCILib xml files, i.e "Custom Command" in order to support data size >= 248 bytes. 2. ATT_HandleValueNoti event defined also for HCI_Vendor_Specific_Event_Ext, which is the same as HCI_Vendor_Specific_Event, but supports events that has a length bigger then 256 bytes.

      Performing GATT_WriteLongCharValue with data of size 300 bytes, results in writing only 44 bytes.

      Test was executed on CC2340R5.

      Test Sequence

      1. Flash  2 CC2340R5 devices: one with Host Test, second with Data Stream app, configured with:
        Public Address,
        ble.maxPDUSize = 255,
        DSS_MAX_DATA_IN_LEN = 1024 (defined in data_stream_server.h)
      2. Create connection between 2 sides
      3. Exchange MTU with 251 bytes
      4. Perform GATT_WriteLongCharValue with the Host Test

      Sniffer log shows that only 44 bytes were actually written:

      RTOS: FREERTOS

      Compiler: both IAR and TICLANG

      Reproducibility: 100%

            Assignee:
            TI User
            Reporter:
            TI User
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              Created:
              Updated:
              Resolved:

                Connection: Intermediate to External PROD System
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