PGA970: working SysTick example

Hi Paul,

I'll assume you've gone through the PGA970 Software Users Guide, but can I ask which compiler you are using?  Scott - our PGA970 expert, is out till Monday next week.  If I can't help get this sorted out for you, we'll need to wait until he is back in the office.

Hi Tom,
Yes, I read the guides but they didn't help me in that case.
Im using the "TI v5.2.8 [TI v20.2.2.LTS] " in CCS. I figured  out that my SysTick is counting down and setting COUNTFLAG properly but it wont execute any function and also wont reset the Countflag bit. I worked around that problem with my own Code:
if(SYST_CSR==0x10007)
{
DoSomething();
SYST_CSR=0x00007;
}
But running a real SysTick would be great in order to spare resources,

Hi Paul,

Have you set the TICKINT bit?

Hi Tom,
yes TICKINT should be set since i wrote 0x00007 to SYST_CSR which sets it.

Hi Paul,

You may need to adjust your interrupt priorities in the NVIC. It may be that a separate interrupt is taking priority and preventing the systick ISR from running. The details of the NVIC are not described in the PGA970 datasheet since they are specific to the M0, but the description should be in the M0 user's guide.

Regards,