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CCS/TMS320F280049: F280049x - External oscillator (XTAL) in single-ended mode issue

Part Number: TMS320F280049

Tool/software: Code Composer Studio

Good morning guys,

I need of your support because Inwe have an issue with a production hardware (based on f280049 microcontroller).

My production hardware uses an external single-ended oscillator (20MHz). 

The software for the new board, based on the driverlib library, has been developed on the Experimenter Kit with f280049C controlCARD. The controlCARD uses an External oscillator (XTAL) in crystal mode (not single ended). 

Yesterday, I started the porting of the software to the new production hardware. I changed the clock configuration  to use the External oscillator (XTAL) in single-ended mode as reported in the picture below.

  

When I call the SysCtl_setClock() function an assert is triggered (external oscillator single-ended not valid).

What does it mean? Why the driverlib library does not allow the usage of the external oscillator single-ended?

 

 

This issue is very urgent for us. 

Thank you very much for your support.

 

Regards,

Fabrizio