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Boot MQX without 8MHz oscillator on TWR-K20D72M

Question asked by christos on Feb 25, 2013
Latest reply on May 13, 2013 by Thomas Dowad

Hi all,

 

   I have a TWR-K20D72M board without an 8MHz crystal, is it possible to start MQX without?

 

   I tried to modify the _bsp_initialize_hardware() function to exclude initialisation of the oscillator and MQX boots but the _time_delay(x) calls never return.

 

   Has anyone run MQX without the 8MHz oscillator and could you point me to the right direction to get the board running in FLL Engaged Internal (FEI) clock mode or FLL Bypassed Internal (FBI) clock mode (I believe these two modes do not depend on the oscillator).

 

Best regards,

Christos

 

 

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