CC2640 and connection with my APP

Mario Castaldo

Part Number: CC2640R2F
Other Parts Discussed in Thread: CC2640, BLE-STACK,

Hi everyone,

I'm working with the CC2640 with custom board and my APP that I created. At this time, I can turn on / off relay via the APP with the passage of UUID functions. I need this information:

1) If I want to read the status of an input (high / low). Do you need a new UUID?
2) Right now I'm using the association via a button on the CC2640 and I'm using this configuration on my code:

  uint8_t pairMode = GAPBOND_PAIRING_MODE_INITIATE;  
  uint8_t mitm = TRUE;
  uint8_t ioCap = GAPBOND_IO_CAP_DISPLAY_YES_NO;   
  uint8_t bonding = FALSE;

  GAPBondMgr_SetParameter(GAPBOND_DEFAULT_PASSCODE, sizeof(uint32_t),
                         &currVal);
  GAPBondMgr_SetParameter(GAPBOND_PAIRING_MODE, sizeof(uint8_t), &pairMode);
  GAPBondMgr_SetParameter(GAPBOND_MITM_PROTECTION, sizeof(uint8_t), &mitm);
  GAPBondMgr_SetParameter(GAPBOND_IO_CAPABILITIES, sizeof(uint8_t), &ioCap);
  GAPBondMgr_SetParameter(GAPBOND_BONDING_ENABLED, sizeof(uint8_t), &bonding);

In this moment, I see on my smartphone: "It requested a passkey, do you want to associate with this device?", instead of this message, Can I see this message "Do you want to associate with this device? Click on button of device"

Regards

over 5 years ago

0 Marie H over 5 years ago

TI__Guru 73461 points

Hi Mario,

1) Yes, you will need a new characteristic with a new UUID for this.
2) Based on the GAPBondMgr parameters on the CC2640R2F device, and the parameters on the peer device, a pairing mode will be chosen. Please see the BLE-Stack User's Guide on this topic: dev.ti.com/.../gapbondmngr.html

If your CC2640R2F device has the GAPBOND_IO_CAP_DISPLAY_YES_NO an the peer device (smartphone) has the Keyboard display I/O capability, you will either get passkey entry or numeric comparison. (Depending on whether you are using Legacy pairing or LE Secure connections.)

"Do you want to associate with this device? Click on button of device" is not something that is implemented in the Bluetooth Coore Spec. If you want this message, you would have to implement it in your phone app.

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

Hi Marie, thanks for the reply. How can I create a new UUID, is there a guide? What value do I have to pass to the APP?

With my APP, the device does not return associated. If I close and open the APP I always have to do the association, insooma, the association is not saved. Depends on what?

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

1) Please see the BLE Custom Profile SimpleLink Academy lab ( dev.ti.com/.../ )

2) It sounds like you want to use pairing and bonding to store information about the peer device. Please see the BLE Security SimpleLink Academy lab to learn about these concepts ( dev.ti.com/.../ ).

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

Hi Marie, I not found the second point

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

If you follow the steps in the SimpleLink Academy Bluetooth Security lab down to task 4 - Enable bonding, you will achieve what you described.

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

Thanks for the reply. One last question: on my APP, when I find the device, I click and I associate. The screen opens to interact with the device, when you open the first time it is disconnected. I had to close and reopen to complete the association. Why?

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

I don't understand the question. Can you rephrase with some more detail?

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

Basically, when I open the application from my smartphone and find the devices, I click on the cc2640, I join and connect. But there is a problem, the first time I connect I can not interact with the device, I have to close and reopen the application and it works. Why?

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Sounds like it could be that the Bluetooth cache in the phone can be the reason. Please see the FAQ post: e2e.ti.com/.../404236

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

Hi Marie, I tried to clear the cache of my APP but nothing. When I join the first time, the device is disconnected. To connect, I have to exit and return from the APP

0 Mario Castaldo over 5 years ago

Expert 2735 points

Part Number: CC2640R2F

Tool/software: TI-RTOS

Hi all, I have buy a new Smartphone Samsung Galaxy A8 (BLE 5.0) and I testing with my project. When I go to connect, I do the association and I try to turn on / off a LED through the APP, but nothing. I re-open the APP and ask me for the association. Basically, the device does not save the association and receives nothing. I tried with all the smartphones available and they work, but with this no. Why?

0 Pavel Kosenko over 5 years ago

Genius 4540 points

Try the Simple Peripheral.. May be we have same problem..

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Can you reproduce this with the SimpleLink Starter App and give me step-by-step instructions to reproduce your issue?

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

With SimpleLink the APP start and function. But If I test the my APP (Project Zero that I found on website of Texas) when I click on connect, the device is disconnected and for to be connected I should to exit and Re-open the APP. With another Smartphone Samsung A8, the device is connected but not management nothing and not save the association. But with every device avaible it works. Why?

0 Mario Castaldo over 5 years ago in reply to Pavel Kosenko

Expert 2735 points

I create a custom APP for android and I should to use ProjectZero

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Can you take a sniffer log of this happening?

It sounds like the problem is on your smartphone. Can you ask on the android developer forum, maybe someone there has seen the same issue?

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

I use a 4x4 board custom with Project-zero. If I use the LAUNCHXL 7x7 with my APP it works with A8, but with my board not works

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Can you please check with the following guide your board design: http://www.ti.com/lit/swra640

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

I found the problem. The my custom APP Android don't save the pairing, if I use the A8 without pairing it works. I use the bluetooth low energy that I found on website of Texas and don't save the pairing. Why?

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

I don't understand the question. Can you tell me ste-by-step what you do, what the effect is and what you expected to happen.

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Did you find a solution?

I will close this thread due to inactivity.

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

No Marie H , the my APP not save the pairing and I don't know how to make this

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Can you tell me ste-by-step what you do, what the effect is and what you expected to happen?

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

I would like to let my CC2640 communicate with my APP.
If the CC2640 does not enable pairing it works perfectly with my app. If the CC2640 enables pairing with my app it will not work. It seems that my app when I associate the device does not communicate with him. I do not know where to put my hands

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Can you give me ste-by-step instructions to reproduce your issue?

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

Hi Marie H,

I working with CC2640 custom board and project zero. This is my step.

1) I generate the bin file of project-zero, I used this configuration:

uint8_t pairMode = GAPBOND_PAIRING_MODE_INITIATE;
uint8_t mitm = TRUE;
uint8_t ioCap = GAPBOND_IO_CAP_DISPLAY_YES_NO;
uint8_t bonding = TRUE;

GAPBondMgr_SetParameter(GAPBOND_DEFAULT_PASSCODE, sizeof(uint32_t),
&passkey);
GAPBondMgr_SetParameter(GAPBOND_PAIRING_MODE, sizeof(uint8_t), &pairMode);
GAPBondMgr_SetParameter(GAPBOND_MITM_PROTECTION, sizeof(uint8_t), &mitm);
GAPBondMgr_SetParameter(GAPBOND_IO_CAPABILITIES, sizeof(uint8_t), &ioCap);
GAPBondMgr_SetParameter(GAPBOND_BONDING_ENABLED, sizeof(uint8_t), &bonding);

2) I test this project with SimpleLink Starter and BLE Scanner and it works.
3) I created a simple app android, taking a cue, to Bluetooth low energy project zero that i found on webiste of texas.
4) If I use the configuration that I show you the APP found the device, it connect but not works, because have the paired.
5) If I use this configuration:

uint8_t pairMode = GAPBOND_PAIRING_MODE_NO_PAIRING;
uint8_t mitm = TRUE;
uint8_t ioCap = GAPBOND_IO_CAP_DISPLAY_YES_NO;
uint8_t bonding = TRUE;

The my App it works because the device not is paired.

I suppose that the problem is the app, because not communicate when the device is paired. And I don't know how resolve this problem.

Thanks!

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

Since this concerns your custom made app I can't reproduce the issue here. As you say, there is probably something wrong with how your app handles the pairing process. If you post a sniffer log of this happening I can try to see what goes wrong, but I'm not a smart phone programmer so I can't really debug your smart phone app code.

Perhaps you can post in and Android app developer forum?

0 Mario Castaldo over 5 years ago in reply to Marie H

Expert 2735 points

I did it but I did not have any answers

0 Marie H over 5 years ago in reply to Mario Castaldo

TI__Guru 73461 points

Hi Mario,

If you post a sniffer log of this happening I can try to see what goes wrong, but I'm not a smart phone programmer so I can't really debug your smart phone app code. For now I will mark this post as resolved and close it.

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CC2640 and connection with my APP