CC2650 change advertising and connection interval ?

Hi Tiancong,

Have you read through the SW Developers Guide?

Cheers,
Fredrik

I did. But I am not sure whether I missed something...

I tried to use these commands to change params. 

But after I wrote these in main function, nothing changed. 

Where should I put them in ?

Hi Tiancong,

Do you use sniffer to check those parameters? In my test, advertising intetval can be changed by following API

// Set advertising interval
{
uint16_t advInt = DEFAULT_ADVERTISING_INTERVAL;

GAP_SetParamValue(TGAP_LIM_DISC_ADV_INT_MIN, advInt);
GAP_SetParamValue(TGAP_LIM_DISC_ADV_INT_MAX, advInt);
GAP_SetParamValue(TGAP_GEN_DISC_ADV_INT_MIN, advInt);
GAP_SetParamValue(TGAP_GEN_DISC_ADV_INT_MAX, advInt);
}

About connection interval, you can change by following parameters. Make sure "DEFAULT_ENABLE_UPDATE_REQUEST" is TRUE. Remember, host can accept or reject this request.

// Minimum connection interval (units of 1.25ms, 80=100ms) if automatic
// parameter update request is enabled
#define DEFAULT_DESIRED_MIN_CONN_INTERVAL 8

// Maximum connection interval (units of 1.25ms, 800=1000ms) if automatic
// parameter update request is enabled
#define DEFAULT_DESIRED_MAX_CONN_INTERVAL 800

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

// Supervision timeout value (units of 10ms, 1000=10s) if automatic parameter
// update request is enabled
#define DEFAULT_DESIRED_CONN_TIMEOUT 100

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

I found it in sensortag.c file. Thank you!!!

By the way do you know how to change TGAP_LIM_ADV_TIMEOUT ? The maximum time to remain advertising. I found it is declared in gap.h but I didn't find where it is set.

It turns out only advertising interval is changed but connection interval remains the same... Is this related to my master device?

Hi Tiancong,
You can search "DEFAULT_DISCOVERABLE_MODE", there are two parameters
GAP_ADTYPE_FLAGS_GENERAL --> advertising will not stop
GAP_ADTYPE_FLAGS_LIMITED --> advertising will stop after 180 seconds(default value)

You can change 180 sec to 60sec by
GAP_SetParamValue(TGAP_LIM_ADV_TIMEOUT , 60);

Hi Tiancong,

Yes, master device can reject parameter update request. Do you have sniffer? You can observer the master accept(or reject) you request. Otherwise, you can test your device by BTool