SparkFun Forums

[tomts]

Hello All -
Does anyone know what registers to set to enable the BLE functions in the Artemis Module without the need to add an external 32 kHz crystal? I can load and run code without the crystal, but BLE only works when I add the crystal. This has supposedly been solved (post #224144), but no details were given. I've played around with the obvious register (BLEIF->CLKCFG_b.CLK32KEN), but setting it to zero just results in the code hanging. I'm clearly missing something.

[paulvha]

BLE does not work without the 32KHZ crystal. There is no other clock source available to provide 32Khz. Also see post https://forum.sparkfun.com/viewtopic.php?f=169&t=58135

[tomts]

Hi Paul -
Thank you very much for the reply. I'm trying to get an Artemis Module into a small place (the top-bar of a frame in a bee hive), so removing the external crystal would have been beneficial. I've been struggling with this for a week, partly because of this forum exchange https://forum.sparkfun.com/viewtopic.php?f=170&t=55341. They claim to have gotten the Module BLE working without the 32 kHz crystal, but give no details that would enable me to repeat it. I will now accept the need for the crystal and move on to other problems.
Sparkfun - a statement regarding the need to add this crystal in one of your excellent guidance documents would be very useful for other semi-competent diy types, such as myself. Since you've already added the external 32MHz crystal, it's natural to assume that the Module is "complete".