Re: crashing bluetooth on device
Re: crashing bluetooth on device
- Subject: Re: crashing bluetooth on device
- From: Rene Limberger <email@hidden>
- Date: Mon, 25 Apr 2016 12:59:21 -0700
I’m seeing the same thing on iOS 9.3 using a Ti CC2640 with Ti's BLE Stack 2.1, so i doubt this is Nordic specific.
> On Apr 25, 2016, at 12:44 PM, Alex.SneedMiller <email@hidden> wrote:
>
> Does that mean that the Nordic chip has an issue with its stack, or does the iOS stack have an issue where it can't handle a situation where an ACK doesn't happen?
>
> How did you actually fix the issue? Are you able to get down to that low level when programming on an iOS device?
>
> -----Original Message-----
> From: bluetooth-dev-bounces+alex.sneedmiller=email@hidden [mailto:bluetooth-dev-bounces+alex.sneedmiller=email@hidden] On Behalf Of email@hidden
> Sent: Monday, April 25, 2016 2:00 PM
> To: email@hidden
> Subject: Bluetooth-dev Digest, Vol 13, Issue 40
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> Today's Topics:
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> 1. crashing bluetooth on device (Matthew Chung)
> 2. RE: crashing bluetooth on device (Ephram Cohen)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Sun, 24 Apr 2016 20:35:12 -0700
> From: Matthew Chung <email@hidden>
> To: email@hidden
> Subject: crashing bluetooth on device
> Message-ID:
> <email@hidden>
> Content-Type: text/plain; charset="utf-8"
>
> I am working on a iOS 9+ ble app that talks to a Nordic nRF51. I have a couple remote beta testers who have reported after n number of successful connections, the bluetooth on their device stops working and the only way to fix it is to turn on/off bluetooth on the device. I am assuming something I am doing is crashing the bluetooth daemon but have not been able to reproduce this myself.
>
> I wanted to know if this has happened to anyone else or if there are any suggestions on how to troubleshoot a situation like this?
>
> --
> *Matt Chung*
> VersaMe <http://versame.com/>
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> Message: 2
> Date: Mon, 25 Apr 2016 09:48:34 -0700
> From: Ephram Cohen <email@hidden>
> To: "'Matthew Chung'" <email@hidden>,
> email@hidden
> Subject: RE: crashing bluetooth on device
> Message-ID: <021401d19f12$4fba6b60$ef2f4220$@batandcat.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi Matt,
>
>
>
> I have seen it a few times. For me it turned out to be bad ACK/ NACK of a packet. Sometimes a packet would not get ACK’d, sometimes an extra ACK was added. I can not remember if both caused the lockup, but at least one of them did. I would even look for cases where you receive a packet, then send a packet, then ACK the received packet. This interleave of send and receive processes may confuse it also.
>
>
>
> Good Luck,
>
> Ephram
>
>
>
> From: bluetooth-dev-bounces+ephram=email@hidden [mailto:bluetooth-dev-bounces+ephram=email@hidden] On Behalf Of Matthew Chung
> Sent: Sunday, April 24, 2016 8:35 PM
> To: email@hidden
> Subject: crashing bluetooth on device
>
>
>
> I am working on a iOS 9+ ble app that talks to a Nordic nRF51. I have a couple remote beta testers who have reported after n number of successful connections, the bluetooth on their device stops working and the only way to fix it is to turn on/off bluetooth on the device. I am assuming something I am doing is crashing the bluetooth daemon but have not been able to reproduce this myself.
>
>
>
> I wanted to know if this has happened to anyone else or if there are any suggestions on how to troubleshoot a situation like this?
>
>
>
>
> --
>
> Matt Chung
>
> <http://versame.com/> VersaMe
>
> email@hidden <mailto:email@hidden>
>
> <tel:720-273-9832> 310-210-0956
>
> <http://www.versame.com/> Pre-Order Now!
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