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TI Home » TI E2E Community » Support Forums » Low Power RF & Wireless Connectivity » Low Power RF Bluetooth® Low Energy & ANT Forum » BLE link connection would be lost
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BLE link connection would be lost

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Matt Chen
Posted by Matt Chen
on Apr 06 2012 01:06 AM
Prodigy40 points

Hi Sir

While developing the BLE HID Mouse, we have found that the DEFAULT_ENABLE_UPDATE_REQUEST was set to FALSE as default and seems everything is working as expected.

 

However the BLE link connection would be lost between BLE Peripheral and Central, when the DEFAULT_ENABLE_UPDATE_REQUEST was configured as TRUE.

 

We have traced the code and found GAP_LINK_PARAM_UPDATE_EVENT was received without error. we also have verified and found this issue in other TI example code as well, like HIDEmuKbd and HeartRate.

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  • Matt Chen
    Posted by Matt Chen
    on Apr 08 2012 23:42 PM
    Prodigy40 points

    we test this function on Window 8 and modify some parameter as below.

    // Minimum connection interval (units of 1.25ms) if automatic parameter update request is enabled

    #define DEFAULT_DESIRED_MIN_CONN_INTERVAL     6

     

    // Maximum connection interval (units of 1.25ms) if automatic parameter update request is enabled

    #define DEFAULT_DESIRED_MAX_CONN_INTERVAL     8

     

    // Slave latency to use if automatic parameter update request is enabled

    #define DEFAULT_DESIRED_SLAVE_LATENCY         0

     

    // Supervision timeout value (units of 10ms) if automatic parameter update request is enabled

    #define DEFAULT_DESIRED_CONN_TIMEOUT          1000

     

    // Whether to enable automatic parameter update request when a connection is formed

    #define DEFAULT_ENABLE_UPDATE_REQUEST         TRUE

    BRs

    Matt 

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