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EdwinFairchild / BLE-PyDex

Bluetooth Low Energy Device Exporer
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PyDex and BLE_otas issue when using internal flash for OTA #53

Open EdwinFairchild opened 1 year ago

EdwinFairchild commented 1 year ago

Issue

For some reason I have yet to figure out when using BLE_otas with a smaller MTU (128) I get have to transmit really small packets of 20 bytes which would take a really long time.

Workaround

You can enable Connection Parameter Updates in dats_main.c of the BLE_otas project. settings that I have tested for fast updates are shown below.

/*! configurable parameters for connection parameter update */
static const appUpdateCfg_t datsUpdateCfg = {
    10,
    /*! ^ Connection idle period in ms before attempting
    connection parameter update. set to zero to disable */
    (6), /*! Minimum connection interval in 1.25ms units */
    (9), /*! Maximum connection interval in 1.25ms units */
    0, /*! Connection latency */
    600, /*! Supervision timeout in 10ms units */
    5 /*! Number of update attempts before giving up */
};