• State Resolved
  • Locked Locked
  • Replies 2 replies
  • Subscribers 51 subscribers
  • Views 451 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 USB firmware implementation

Viet Nguyen1
Intellectual 350 points

Other Parts Discussed in Thread: CC2540

I designed a PCB based on CC2540 Keyfob but with additional USB port that I planned to use as USB CDC. I was able to assemble most of the USB firmware modules found in this directory:

C:\Texas Instruments\BLE-CC254x-1.4.0\Components\hal\target\CC2540USB\usb

I compiled the project successfully, including the function: static void HalUARTInitUSB() in _hal_uart_usb.c.

My question is how do I initialize the USB function? Someone told me that HalDriverInit() function would do the trick. But I don't see any condition for USB in that HalDriverInit() function.

Please any expert could give me a hint on how to fire up this USB function? Thanks in advance.

  • 0
    TI__Guru 57865 points
    Hi,
    I haven't done that particular exercise but I suggest you refer to the HostTestRelease project which implements the USB CDC functionality. Unfortunately, there isn't much documentation on the topic other than that.

    Best Regards
    Joakim
  • 0 in reply to J Lindh
    Intellectual 350 points

    Hi Joakim,

    Thanks for that suggestion. However I had to spend several sleepless nights to be able to combine USB CDC functions with the CC2540 KeyFob design. I think this is a very useful feature since I can display what's going on in the firmware through serial output. It helped us understand more quickly how the firmware was executed and Bluetooth operation in general.