PLL isn't lock at using HSI

[yamanaka]

Posted on February 28, 2011 at 02:25

PLL isn't lock at using HSI

[Tesla DeLorean]

Posted on May 17, 2011 at 14:26

Check your initial conditions. Dump them out, and along the way so people can at least figure out what might be amiss.

Check that HSI is running, and ready, and the source clock.

Make sure you mask the CFGR properly when setting HCLK, PCLK1/2

Try using the library code.

[yamanaka]

Posted on May 17, 2011 at 14:26

Hello clive1

The PLL ready after power down all systems.

It was a rudimentary mistake...

Thanks.