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Android 4.4 on BeagleBone Black and cc2541 BLE Communication problem

Other Parts Discussed in Thread: CC2541

Hey Guys,

My name is Birkan and Im working on Android project to connect over bluetooth 4.0 via beaglebone black. I build my own android version and kernel and it boots but Im facing some problem, before I build I configured Beaglebone board and they are attached on this post. and Im using this ble module on the picture which has TI CC2541. and My connection is 

From BLE module      TO Beaglebone black

RX >>>>>>>>>>>>>>>>>  TX  (Uart1 P9_24)

TX >>>>>>>>>>>>>>>>>  RX  (Uart1 P9_26)

5V >>>>>>>>>>>>>>>>    5V   (P9_6)

GND >>>>>>>>>>>>>>    GND (P9_2)

After boot, I go settings and click bluetooth settings. I see black page without any buttons just only back button down. I dont understand the problem. Maybe Im connection to wrong pins or Im using wrong interface.

Im totally open for any suggestion and try. Im working on it for more than 2 weeks. I need your helps guys. 

Best Regards

Birkan

Birkan  conf.zip

  • Hi,

    I would start by probing the UART lines to see if you can detect activity. Then, confirm you are configuring the UART correctly on the CC2541. Refer to the SW Dev Guide & CC2541 User Guide. There are examples on the "Embedded Examples" BLE-Wiki page as well: processors.wiki.ti.com/.../CC254X_Embedded_Examples

    Hopefully this will get you in the right direction.

    Best wishes
  • Hi JXS

    Thank you so much for your answer. but I dont have equipment to probe uart lines. Its budget is like student project budget =). So according to that Can you suggest me to probe in cheap way or another way? btw in this examples where I will put serialnterface.c ? in kernel or device?

    Can you be more clear for me like you are teaching some one new?

    Thank you soo much

    Best Regards

    Birkan