With the new P2 Edge has the hubset value changed?

iseries

Since the new P2 edge is not connect to a crystal should the XPPPP value always be 0pf?

And all frequency should be ok without fear of jitter.

MIke

jmg

The Xtal pF are not needed anymore, but I doubt you'd notice the difference in a pF setting, as there is a CMOS gate driving XIN.

cgracey

Yes, 0pF would be the optimal setting.

evanh

Mike,
If you're using Spin2 then the preferred way is to use the compile time constants, eg The below will preset to 0 pF:

CON
    _xinfreq = 20_000_000
    _clkfreq = 160_000_000

    ...

evanh

If you want to do runtime changes with clkset() then decoding the compiled clkmode_ constant works out really well for a generic routine to discover board config. Note, it's not _clkmode nor clkmode. I've got more detail if you're interested.

evanh

FlexC has the equivalent of the same for board config. Place an enum in the top level source file, eg:

enum {
    _xinfreq = 20_000_000,
    _clkfreq = 160_000_000,
};

And FlexC can import the same Spin source for runtime clkset()ing.