• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 81 subscribers
  • Views 528 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

Why does our project (CCS 5.4, F28069) now have its PLL go into limp mode?

Mark Walsh1
Prodigy 180 points

Our project has been fully functional for some time (the code has not changed in two weeks), but running from RAM.

In the process of tweaking .cmd files to use the FLASH, our project fails the PLL test in InitPll() (SysCtrlRegs.PLLSTS.bit.MCLKSTS != 0) and goes into limp mode, even when we use our old .cmd file.

To make matters more strange, if we run the Example project (Example_2806xEPwmTimerInt) on our hardware, there is no problem with the PLL test.

What is in our configuration that could have changed or gotten corrupted that is causing this problem? I have looked at sprufb0d, but nothing jumps out at me.

Thanks -- Mark