SIG_Connection Parameter Update_Request and Response (iOS)

Hello Ash,

Can you post your sniffer log and the parameters you are requesting? This would be a good first start.

Best wishes

Dear JXS,

Thanks for your reply~

Here is the parameter configuration, what I am using......

Sniffer log is attached as well.  CONNPARAMUPDATE_KFB_iPADM_20150514.psd

 

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

// Minimum connection interval (units of 1.25ms) if automatic parameter update request is enabled
#define DEFAULT_DESIRED_MIN_CONN_INTERVAL     20

// Maximum connection interval (units of 1.25ms) if automatic parameter update request is enabled
#define DEFAULT_DESIRED_MAX_CONN_INTERVAL     40  

// Slave latency to use if automatic parameter update request is enabled
#define DEFAULT_DESIRED_SLAVE_LATENCY         0

// Supervision timeout value (units of 10ms) if automatic parameter update request is enabled
#define DEFAULT_DESIRED_CONN_TIMEOUT          300

// Whether to enable automatic parameter update request when a connection is formed
#define DEFAULT_ENABLE_UPDATE_REQUEST         TRUE  

// Connection Pause Peripheral time value (in seconds)
#define DEFAULT_CONN_PAUSE_PERIPHERAL         10

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 

 

Please suggest the correct conn parameters for getting the update request and response to/from iOS.

Thanks n Regards,

/Ash

Hi,

The request is sent at P.nbr 891, although I don't see an acknowledgement from the iOS. Perhaps it was missed by the sniffer. Can you take other traces and compare?

Also, you're requesting an interval in a range that is already in use for the connection (0x18 / 30ms), although you're asking for a longer conn time out value. Are you trying to get a slower interval or just longer timeout value?

Best wishes

Dear JXS,

Thanks for your reply with explanation~

well, I also can not see the response from iOS.  As I just wanted to see wheather there is an update request and response from/to ios and slave (advertisng device) in the sniffer log, so I am requesting the same parameters for update what I used for making connection.

Could you please elaborate where I can check this in code and what are the required configuration for getting response from iOS ? I want average connection time out value.

Please suggest~

Thanks n Regards,

/Ash

 

Hi Ash,

Near as I can tell, your params look compliant to Apple's guidelines. What iOS version is this? Maybe try using interval min of 16 (20ms).

Best wishes

Dear JXS,

well, I am using [iOS 8.1.3]. Also I tried with Interval Min = 16 (20ms), getting the same problem.

I don't understand why iOS is ignoring the parameter update request ? Is this the iOS issue or something else?

Please suggest.

Thanks n Regards
/Ash

For me, I can get 16/44/300 (min/max/timeout) to work with iOS 8.3 / iPhone 6. This set results in a interval of 36 (45ms) and timeout of 300 (3sec).

Sometimes it's an art trying to find the right combination that works :)

Best wishes

Hi Ash,

You might want to check the below thread:
e2e.ti.com/.../1482259

You might want to issue GAPRole_SendUpdateParam() to trigger the Connection Update Parameter Request explicitly.

Regards,
Sunny