Change UUID programatically

RE: Change UUID programatically

Hung Bui — Tue, 25 Jul 2017 13:06:24 GMT

Hi DMS, Are you sure you are changing UUID or you are changing advertising type ?

If your program suddenly stopped working, you should debug it to find what cause the issue. Follow this guide on how to debug.

RE: Change UUID programatically

DMS — Mon, 24 Jul 2017 13:10:06 GMT

__DSB(); /* Ensure all outstanding memory accesses included buffered write are completed before reset / SCB->AIRCR = (uint32_t)((0x5FAUL << SCB_AIRCR_VECTKEY_Pos) | (SCB->AIRCR & SCB_AIRCR_PRIGROUP_Msk) | SCB_AIRCR_SYSRESETREQ_Msk ); / Keep priority group unchanged */ this two lines are running forever

RE: Change UUID programatically

RK — Mon, 24 Jul 2017 12:07:51 GMT

still looks like an error handler to me

RE: Change UUID programatically

DMS — Mon, 24 Jul 2017 12:05:22 GMT

the loop is running forever __STATIC_INLINE void NVIC_SystemReset(void) in this function.

RE: Change UUID programatically

RK — Mon, 24 Jul 2017 11:23:32 GMT

That's one of the calls in there, basically anything which has an APP_ERROR_CHECK() after it may fail, at which point you're in the error handler spinning forever.

RE: Change UUID programatically

DMS — Mon, 24 Jul 2017 11:05:17 GMT

err_code = ble_advdata_set(&advdata, &srdata); APP_ERROR_CHECK(err_code); right?

RE: Change UUID programatically

RK — Mon, 24 Jul 2017 10:42:05 GMT

go and check the error returns from the calls which set up advertising

RE: Change UUID programatically

DMS — Mon, 24 Jul 2017 10:20:31 GMT

m_adv_params.type = BLE_GAP_ADV_TYPE_ADV_IND; m_adv_params.p_peer_addr = NULL; // Undirected advertisement. m_adv_params.fp = BLE_GAP_ADV_FP_ANY; m_adv_params.interval = APP_ADV_INTERVAL; m_adv_params.timeout = APP_ADV_TIMEOUT_IN_SECONDS; this was the parameters we added. are we in right direction towards connection establishment?

RE: Change UUID programatically

RK — Mon, 24 Jul 2017 10:09:08 GMT

99.9% you put a bad parameter in the structure and the advertising init function returned an error and one of the APP_ERROR_CHECK()s sent you to the application error handler.

Go put a breakpoint in that and you'll have a stack trace and an error code and you can work out from there what bad parameter you set.