PSoC™ 4 Forum Discussions

Hi,

I am trying to have my BLE device connect to my app with a simple password setup.  I have set the password to '1234' using the following code:

        case CYBLE_EVT_STACK_ON:
            // When stack comes on, set correct ECO capacitance trim value
            // http://www.cypress.com/knowledge-base-article/eco-capacitance-trim-values-ez-ble-modules-kba218990
            CY_SET_XTND_REG32((void CYFAR *)(CYREG_BLE_BLERD_BB_XO_CAPTRIM), 0x9898);
            // Set password
            CyBle_GapFixAuthPassKey(TRUE,dataLocal.pinCode);
            
            // Start advertisement
            CyBle_GappStartAdvertisement(CYBLE_ADVERTISING_FAST);
            break;

I have confirmed that this is indeed the pin here:

        case CYBLE_EVT_GAP_PASSKEY_DISPLAY_REQUEST:
            // Check passkey
            passkey = *(uint32 *)eventParam;
            break;

'passkey' is decimal '1234', 0x4D2 hex.

When my app is prompted and I enter '1234' into the passkey entry, the connection fails for the following reason:

CYBLE_GAP_AUTH_ERROR_CONFIRM_VALUE_NOT_MATCH 

I don't know how I can see what the BLE saw for the entered passkey to check what went wrong.  Any ideas?

Thank you for your comments.

Regards,

Tom

The description for smp_send_pairreq_response on p.143 says:

"EZ-Serial will automatically accept pairing requests unless Bit 1 of the security behavior flags is cleared using the flags
field in the gatts_set_parameters (SGSP, ID=5/14) API command."

I believe that this is incorrect - it should be bit 0 of the flags field in smp_set_security_parameters, as described on p.147.

EZ-Serial BLE Firmware Platform User Guide, Doc. No. 002-11259 Rev. *C

Hi,

I have a project that has a few arrays of items that the Android app can change.  For instance, there is an array of 10 'custom value' items that consist each of:

    
• value number (1-10)
    
• value address (0-511)
    
• value (0-255)
    
• enabled (0,1)
   

Do I need to set up 10 different characteristics, one for each 'custom value'?  

When I receive a read request, is there a way to determine which one the app wants to read, write it into the characteristic, and then let the app read the data, or generate a notification for the app to read the updated characteristic?  

I am trying to simplify things, and don't want 10 different, identical in structure characteristics if I don't have to.  I also have a 'custom color' and 'custom program' characteristic that this would apply to.

Sorry if this is unclear, please let me know if you have any questions
Thank you,
Tom

I'm making a project similar to the BLE_UART project from cypress using the CY8CKIT-042-BLE Pioneer Kit with a CYBLE-EVAL-014008 module and the provided dongle. During the initial connection, I'm getting the error CYBLE_ERROR_INVALID_OPERATION whenever I call the function CyBle_GattcDiscoverAllCharacteristics(cyBle_connHandle, attrHandleRange);

Why would that function throw that error? My attrHandleRange object uses the same BLE UART Service Handle start and end as the BLE_UART project on the central side, so I imagine this is an issue in the peripheral code.

Thanks for any help.

Hi,

I was wondering if it were possible to write to a single variable field in a GATT server without overwriting other fields.  For example, I have 'program, speed, brightness' fields in a characteristic - can I write to just one of those fields, and if so, how?

If not, would it not make more sense just to have a byte array instead of multiple fields?  It would accomplish the same thing.

Thank you in advance.

Hi All,

I am pretty confused about the capability of BLE to build multihop (mesh, tree) network topology. At the beginning, I thought that it is the same with the classical bluetooth. And also, I see that there are some projects in 100_Projects_in_100_Days (e.g.            Day012_Central_Peripheral) mentioning about having multiple role in a node (I have not tried them out though). I thought that can be a way to build multihop topology. However, when I googled again for some basic information about BLE, some say it's not possible to have multihop topology but some say it is possible. Can anyone please explain about this? Or maybe give me some reference about it? Or maybe, if anyone has tried out the related projects or having other experience establishing multihop network. Please give me some guidelines. I would very appreciate it. Thank you.

Regards,

Daryanto