BLE Connection Issue with nRF52840 Chipset to iOS App

RE: BLE Connection Issue with nRF52840 Chipset to iOS App

awneil — Tue, 28 Jul 2020 08:47:10 GMT

RE: BLE Connection Issue with nRF52840 Chipset to iOS App

Vidar Berg — Tue, 28 Jul 2020 07:11:45 GMT

Hello Himansu,

I would suggest to try disabling ANT temporarily to see if it makes the iPhone connection stable. Also, the connection parameters you listed above does not follow the Apple recommendations, so I would consider changing those. The connection parameter recommendations are given in section 35.6 of their design guidelines document here https://developer.apple.com/accessories/Accessory-Design-Guidelines.pdf

Regards,

Vidar

RE: BLE Connection Issue with nRF52840 Chipset to iOS App

Himansu — Fri, 24 Jul 2020 11:44:08 GMT

Hi ,

Please also note, we are use BLE + ANT both parallel.

This is not generated all time but facing most of time when ANT channel in searching Mode.

I am also added ANT radio channel Priority is low using below function.

err_code = sd_ant_coex_config_get(ANT_SCAN_CHANNEL_NUMBER, &ant_coex_config, NULL);
APP_ERROR_CHECK(err_code);
ant_coex_config.pucBuffer[0] = 0; //disable all configuration
err_code = sd_ant_coex_config_set(ANT_SCAN_CHANNEL_NUMBER, &ant_coex_config, NULL);
APP_ERROR_CHECK(err_code);

Let me know, how overcome BLE Connection issue.

Regards,

Himansu Donga

RE: BLE Connection Issue with nRF52840 Chipset to iOS App

awneil — Mon, 20 Jul 2020 12:12:02 GMT

[quote userid="92069" url="~/f/nordic-q-a/63949/ble-connection-issue-with-nrf52840-chipset-to-ios-app"]Any issue in above parameter as per Apple BLE Connection Interval Parameter guideline [/quote]

What do the Apple BLE Connection guidelines say?

What debugging have you done?

https://www.argenox.com/library/bluetooth-low-energy/ultimate-guide-to-debugging-bluetooth-smart-ble-products/