[FAQ] CC1311P3: SDK-6_10_00_29 cannot use TCXO?

Which compiler do you use? 

I have looked into this for a different chip the latest few days and I have found that using TIClang seems to change the timing slightly.

If you use this compiler, you can try copy PowerCC26x2.c into the project and add a small delay here:

static void switchXOSCHF(void)
{
    bool readyToCal;
    unsigned int key;

    key = HwiP_disable();

    delayUs(5); 

    if (!PowerCC26X2_oschfTrySwitchToXosc()) {
        /* Unable to switch to XOSC after we were informed it is ready to
         * switch. It is fine if we spin, there is no sensible recovery
         * mechanism from such an error.
         */
        while(1) ;
    }