Smart Bluetooth Forum Discussions

I'm currently working on an application with a 20736S acting as a central.  In order to speed up the overall process, I'm interested in using 'bleprofile_sendWriteCmd' since it doesn't require waiting for a response like 'bleprofile_sendWriteReq' does.

My questions are:

     1)  How many of those ...WriteCmd calls can be executed in a row (called sequentially without delay)? 

     2)  If there is a limitation, what is the mechanism to determine when the next one can be called?

Thanks.

There is a slow speed via OTA with BrCM 20737s chip with Samsung handsets even if we 

add in Ws_upgrade_ota.c

            // to make upgrade faster request host to reduce connection interval to minimum
            lel2cap_sendConnParamUpdateReq(6, 6, 0, 700);

but it doesnt work and ota speed near 20min.

However if we mark this line below in encryption_changed(HCI_EVT_HDR *evt)() in  hello_sensor.c

    // We are done with initial settings, and need to stay connected.  It is a good
    // time to slow down the pace of master polls to save power.  Following request asks
    // host to setup polling every 100-500 msec, with link supervision timeout 7 seconds.
    //bleprofile_SendConnParamUpdateReq(80, 400, 0, 700);

it can work with only 2min ota. However, we disable a refered speed from slave to master...

is it impact any issue for instance, master auto set a interval speed but slave can not support it to cause link-drop or other issue???

I have found that iPhone will not re-pair to a device that is still in its bluetooth menu after device calls

lesmpkeys_removeAllBondInfo();

  emconninfo_clearDeviceBondedFlag();

  emconninfo_clearLinkEncryptedFlag();

and then after reconnecting with phone in connection up sends a security request.

Security request is ignored by phone, callback never received on device. Phone stays connected to device but not in bonded/encrypted state (according to  emconninfo_deviceBonded & emconninfo_linkEncrypted flags).

i want to put constant parameter to special address just like in IAR development IDE, i can use #pragma xxxxx @Location