slow down the speed of bootloader receiving the app update.zip

[Mainland Lu]

hi i have problem!how to slow down the speed of bootloader receiving the app update.zip.
SDK 15.2.0 ,s112 ,securebootloader example ,nRF52810

[Sigurd]

Hi,

Could you explain why you want to slow down the speed?

[Mainland Lu]

Hi. I use the nRF Toobox with HUAWEI Mobilephone to update my app.zip.I had a problem that update failed when using the SDK13 ，S132, nRF52832 before.when I slow down the speed that uddate successful,but in SDK 15.2.0 ,s112 ,securebootloader example ,nRF52810 i could not find the parameter as follows!

		/***********************/
		//SDK13 ，S132, nRF52832
		ble_opt_t op;

		memset(&op,0,sizeof(op));

		op.common_opt.conn_bw.conn_bw.conn_bw_rx=BLE_CONN_BW_MID;

		op.common_opt.conn_bw.conn_bw.conn_bw_tx=BLE_CONN_BW_MID;

		op.common_opt.conn_bw.role = BLE_GAP_ROLE_PERIPH;

    err_code=sd_ble_opt_set(BLE_COMMON_OPT_CONN_BW,&op);

    if (err_code != NRF_SUCCESS)
    {
        NRF_LOG_ERROR("Bandwith option error", err_code);
    }

    else
    {
        NRF_LOG_INFO("Bandwith option ok\r\n");
    }

[Sigurd]

Mainland Lu said:

nRF52810 i could not find the parameter as follows

Yes, the BLE bandwidth configuration and application packet concept has been changed. Previously, the application could specify a bandwidth setting, which would result in a given queue size and a correpsonding given radio time allocated. Now the queue sizes and the allocated radio time have been separated. The application can now configure:Event length, Write without response queue size, Handle Value Notification queue size.

The ble_enable_params_t::common_enable_params.p_conn_bw_counts parameter of the sd_ble_enable() SV call is replaced by the sd_ble_cfg_set() SV call with cfg_id parameter set to BLE_CONN_CFG_GAP.

To configure this so it corresponds to BLE_CONN_BW_MID, you should set the NRF_SDH_BLE_GAP_EVENT_LENGTH parameter in sdk_config.h to BLE_GAP_EVENT_LENGTH_DEFAULT

// <o> NRF_SDH_BLE_GAP_EVENT_LENGTH - GAP event length. 
// <i> The time set aside for this connection on every connection interval in 1.25 ms units.

#ifndef NRF_SDH_BLE_GAP_EVENT_LENGTH
#define NRF_SDH_BLE_GAP_EVENT_LENGTH BLE_GAP_EVENT_LENGTH_DEFAULT
#endif