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Getting HM10 clone cc-41 A to broadcast

Sreedev K
Intellectual 475 points

cc-41 A is a clone of the popular BLE module HM10. However, I had a hard time in getting the device to broadcast.  So finally, I solved the whole issue. The HM10 clone was missing the external 32Khz crystal needed for BLE. However, the code was set to use the external 32Khz. Just modded the code to use internal 32Khz and removed power saving pre processor. Added XOSC32K_INSTALLED=FALSE to pre processor list. Thanks TI for the wonderful forum. I actually made use of the following forum posts. Hope this helps someone in future using HM 10 clones.

e2e.ti.com/.../1443229

  • TI__Guru** 105180 points
    Hello,

    Thanks for your post! I do hope it helps others who use this popular module.

    Best wishes
  • Prodigy 10 points
    hello!

    i have the same problem, got a fake hm-10 ble module, with the missing crystal.
    can you please give some details, how it is possible to edit the firmware? what equipment + software do i need? it is possible to do with an arduino?

    or, if i buy a 32 khz crystal and solder to the module, it could function normally?
    this would be ok? www.tme.eu/.../

    my phone detects the ble module, but can't pair.

    thank you!