• State TI Thinks Resolved
  • Locked Locked
  • Replies 4 replies
  • Answers 1 answer
  • Subscribers 52 subscribers
  • Views 837 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

CC2540: Cc2540 com port problems

sieuwe elferink
Prodigy 80 points

Part Number: CC2540

Hello everyone

I have bought a cheap led strip controller wich has a cc2540 ble chip inside. I am now trying to connect it to my pc so i can write a c# app for it. But i am having problems communicating with it. It connects normally to my pc and shows up in the device manager under the tap Bluetooth. But at the com port tab it shows nothing. When i go to the bluetooth settings> COM ports > add > outgoing > Browse it wont show my device either. 

I am also not able to connect with it using Btool.

I am runnung a lenovo thinkpad x240 wit windows 10 latest update.

Greetings Sieuwe

  • 0
    TI__Guru** 105180 points
    Hello,

    Since you purchased this device as part of an end product, you will need to contact the manufacturer for support as they control the firmware application.

    Please note that BLE does not define a serial port service unlike classic Bluetooth.

    Best wishes
  • 0
    Guru 735695 points
    To work with BTool, CC2540 has to run HostTest. However, I think this cheap CC2540 strip controller runs BLE peripheral role on it. You can try to use a BLE central app on Smartphone to verify it.
  • 0 in reply to YiKai Chen
    Prodigy 80 points

    Hello YiKai

    thanks for the quick answer.

    It is indeed working when i commect the phone like it is supposed to do. This means i need to put it into a diffrent mode? Is this done by flashing a .hex file to the chip? And if so can i connect the tx rx pins from the ic to a serial converter to flash it. Or is it possible to do it over bleutooth with the build in bleutooth of my laptop?

    Greetings Sieuwe

  • 0 in reply to sieuwe elferink
    Guru 735695 points

    I think you have to use CC Debugger to download hex file if you need to do FW replacement.