Forums

My team and I are having the same problem.  We are trying to connect the EZ430-RF2560 to a Samsung Galaxy Tab (10.1", Model GT-P1750).  Our primary goal is to send temperature and pH measurements over the Bluetooth network to the tablet for storage and display.  We've established a connection between our tablet and another Bluetooth enabled, Android powered device (running similar software).  Any suggestions and comments would be much appreciated.  Thank you in advance for your aid.

Hi,

   This porblem occurs where either your device(phone) is not supported SPP profile or you have to write a application(android) to invoke spp profile.

  By default all the phone supports HS,HFP profiles. please makesure that your device(phone) supports SPP, if so please get the application from phone side to invoke SPP profile while connection.

Thanks

Hi,

Thanks for your information, but I tried to connect EZ430 RF256X with my thinkpad laptop, the connection still fails. Do you you any app on Android or windows I can use to connect through Bluetooth?

Hi Bo,

Do you have the correct settings on the laptop BT stack? Is SPP enabled? Do you have a COM port available?

Regards,

Miguel

Hi,

Thanks for your feedback, actually, I can connect to a smart phone now, and it is what I　ｗａｎｔｅｄ．　Ｉ　ｄｏｗｎｌｏａｄ　ａ　ａｐｐ　ｔｏ　ｅｎａｂｌｅ　ｓｐｐ．

Ｔｈａｎｋｓ　ａｇａｉｎ　ｆｏｒ　ｙｏｕｒ　ｒｅｐｌｙ．

Bo　Dong

Hi, I have same problem.

I have:

1) laptop samsung NC10 with widcomm bluetoosh 2.0 + EDR
2) phone htc desire (gsm) with custom ROM (cyanogenmod 7.1)
3) EZ430-rf2560 dongle

When I connect from phone to laptop, all works fine (piring, authorization by pin code (BT 2.0), connect SSP, transfer data) .

When I connect from laptop to dongle, all works fine (piring, authorization by pin code (BT 2.0), connect SSP, transfer data).
Some debug log from dongle:

Received HCI->.
Command Opcode: 0x0C1A
Command Status: 0x00
Received UI Connection Request from SM
BD_ADDR = 7D:6E:F7:4E:23:00
OK
Received HCI_CONNECTION_COMPLETE_EVENT.
Status: 0x00
Status = %02x
Connection Handle: 0x%04X
BD_ADDR:
----------------------------------------------------------
Stream DUMP
----------------------------------------------------------

Link Type: 0x%02X -> ACL
Ecnryption Mode: 0x%02X -> Encryption OFF
No Such SPP Connection instance available
Unknown Event Code 0x7D Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Received HCI->.
Command Opcode: 0x0C1A
Command Status: 0x00
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Received UI Link Key Request from SM
BD_ADDR = 7D:6E:F7:4E:23:00
Replying to UI Link Key Request (+Ve) ... OK
Unknown Event Code 0x01 Received.
Received HCI->.
Command Opcode: 0x040B
Command Status: 0x00
Unknown Event Code 0x00 Received.
Unknown Event Code 0x00 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Received HCI_LINK_KEY_NOTIFICATION_EVENT.
BD_ADDR:
----------------------------------------------------------
Stream DUMP
----------------------------------------------------------

Link Key:
----------------------------------------------------------
Stream DUMP
----------------------------------------------------------

Key Type: 0x%02X -> Combination Key
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.

SPP HANDLE : %u
EVENT : %d
RESULT : 0x%04X
SPP_CONNECT_IND -> Connection Successful
Remote device BD_ADDR : %02X:%02X:%02X:%02X:%02X:%02X
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.

And when I connect from phone to dongle, i have problem (piring - ok, authorization - ok, connect SSP - FAIL).
Some debug log from dongle:

Received HCI->.
Command Opcode: 0x0C1A
Command Status: 0x00
Received UI Connection Request from SM
BD_ADDR = F8:4F:F6:76:23:00
OK
Received HCI_CONNECTION_COMPLETE_EVENT.
Status: 0x00
Status = %02x
Connection Handle: 0x%04X
BD_ADDR:
-------------------------------------------------------------------
Stream DUMP
Stream DUMP
Stream DUMP
Stream DUMP
Stream DUMP
Stream DUMP
%-48s %s
-------------------------------------------------------------------

Link Type: 0x%02X -> ACL
Ecnryption Mode: 0x%02X -> Encryption OFF
No Such SPP Connection instance available
Unknown Event Code 0xF8 Received.
Unknown Event Code 0x01 Received.
Received HCI->.
Command Opcode: 0x0C1A
Command Status: 0x00
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Received HCI->.
Command Opcode: 0x042B
Command Status: 0x00
Received UI User Conf Request from SM                <- why it is here?
BD_ADDR = F8:4F:F6:76:23:00
OK
Unknown Event Code 0x05 Received.               <- why it is here? HCI_DISCONNECTION_COMPLETE_EVENT

Received HCI->.
Command Opcode: 0x042C                      // HCI_USER_CONF_REQUEST_REPLY_OPCODE
Command Status: 0x0C                  <= status non-zero, then dongle go to error_handler() function (forever loop)

Sorry for my english.

I slove my problem.
In fact, my phone incorrectly supported authentication scheme Just Works of BT 2.1. I changed the authentication mode in the NC and it worked. 

Are you using the most recent service pack for the BT dongle?  Please see the wiki pages listed below.

http://processors.wiki.ti.com/index.php/EZ430-RF2560

http://processors.wiki.ti.com/index.php/CC256x_Bluetooth_Versions_and_Service_Packs

-Arild

Hi Miguel

Im having the same problem with Bo-- being unable to connect my ez430-rf256x to my PC. (I modified the MSP430-Demo prefix requirement to none) my PC could discover and pair with my ez430-rf256x, and 2 COM ports have been assigned at my PC. I just cannot open the COM port by hyperterminal or C. sometimes even I opened them, no signals coming out at all.

Im using ez430-rf256x accl demo. i could connect my end device to the ez430-rf256x-USBstick and then to computer, that works good.

just in case if you think this question interesting, i also asked this questinons on http://e2e.ti.com/support/low_power_rf/f/660/p/172515/676486.aspx#676486 where people also discussed this problem. You could have a better idea what problem I was facing now.

any suggestions?

Thanks in advance!

Jingle 

Denis,

     We are trying to reproduce your setup and come back to you with an answer.

Miguel

Hi Miguel,

Sorry but nope it is not a connection problem at PC end. I could connect my BT ez430-rf256x, but I cannot recieve usable data! I modified based on ez430 accl software, and by debugging I realized appl_send_app_data is not called CONTINUOUSLY! Highly possible it is only called ONCE when BT connection is established and never again.Because I could recieve data at my hyperterminal if I put

appl_send_app_data[0] = 0x55

appl_send_app_data[0] = 0xAA

appl_send_app_data[0] = 0x55

appl_send_app_data[0] = 0xAA

inside appl_send_app_data function. But I2C register never get updated after its first time set. If I guess correctly, The question is because

when I am using PC to recieve BT data rather than another ez430-rf256x, pc end could not send back a CNF everytime it recieves a packet. Not having RECV_CNF from peer device prevents the ez430-rf256x from going into appl_send_spp_data another time.

if yes, what should I do? Please give some DETAILED guidance.

My question: I wanna connect my ez430-rf256x DIRECTLY to my PC (BT device) and send continuous data (first I wanna send accl data from I2C interface as the demo and then I wanna send ADC data).

Hi, Miguel. Thanks for reply!

Currently, I sloved my problem.
In the setting of BT stack, I pointed:

#define SDK_IO_CAPABILITY           SM_IO_CAPABILITY_DISPLAY_YES_NO

After that, the piring process uses the NC schema. 

Some debug log:

piring:
Received UI Connection Request from SM
BD_ADDR = F8:4F:F6:76:23:00

OK
BD_ADDR:
-------------------------------------------------------------------
F8 4F F6 76 23 02
-------------------------------------------------------------------

Link Type: 0x01 -> ACL
Ecnryption Mode: 0x00 -> Encryption OFF
No Such SPP Connection instance available
Unknown Event Code 0xF8 Received.
Unknown Event Code 0x01 Received.
Received UI User Conf Request from SM
BD_ADDR = F8:4F:F6:76:23:00
Numeric Value = 0x0000A4C1
Replying to UI User Conf Request ... OK
Unknown Event Code 0x00 Received.
Received HCI_LINK_KEY_NOTIFICATION_EVENT.
BD_ADDR:
-------------------------------------------------------------------
F8 4F F6 76 23 02
-------------------------------------------------------------------

Link Key:
-------------------------------------------------------------------
13 89 4E 9E 20 9B 5D 35 6D 41 A0 92 4E 9A 30 56
-------------------------------------------------------------------

Key Type: 0x05 -> ???
Unknown Event Code 0x00 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Received HCI_DISCONNECTION_COMPLETE_EVENT.
Status: 0x00
Connection Handle: 0x0001
Reason: 0x13
Disconnected

SPP connect:

Received UI Connection Request from SM
BD_ADDR = F8:4F:F6:76:23:00
OK
BD_ADDR:
-------------------------------------------------------------------
F8 4F F6 76 23 02
-------------------------------------------------------------------

Link Type: 0x01 -> ACL
Ecnryption Mode: 0x00 -> Encryption OFF
No Such SPP Connection instance available
Unknown Event Code 0xF8 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Received UI Link Key Request from SM
BD_ADDR = F8:4F:F6:76:23:00
Replying to UI Link Key Request (+Ve) ... OK
Unknown Event Code 0x00 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.
Unknown Event Code 0x01 Received.

SPP HANDLE : 0
EVENT : 2
RESULT : 0x0000
SPP_CONNECT_IND -> Connection Successful
Remote device BD_ADDR : F8:4F:F6:76:23:00

SPP HANDLE : 0
EVENT : 6
RESULT : 0x0000
SPP_SEND_CNF -> Sent successfully

But, I do not understand why when using the scheme "Just Works" for peering, SPPconnection is not successful.

JingLe,

 Have you looked at http://processors.wiki.ti.com/index.php/CC256x_MT_UART_BRIDGE to see an example of sending data using a timer?

Regards,

ZH

Hi Zahidul,

I went over JingLe's descriptions and am having a similar issue with my ez430-rf2560 development kit. I'm just basically trying to use the information coming from the accelerometer in a Bluetooth enabled host (PC and Android smartphone).

I'm using IAR Workbench for debugging purposes. Once I run the accelerometer demo, the blue and red LEDs are synchronously blinking. After running the "scan for devices" from the Bluetooth host, I couldn't see any of the msp430bt5190 devices running the accelerometer demo.

I appreciate your help.

Regards,

DC