Running int osc at 80MHz

[skartalov]

Hi,
Who can help me configure the right bits to make the processor run on internal osc at full speed 80Mhz?

[David John Barker]

just put

Code: Select all

clock = 80

at the very top of your program - be careful though, some timing critical modules such as UART may not play ball at this speed (it works here, but internal OSC does not have the accuracy of an external xtal). Firewing will auto adjust the internal OSC when using clock = 8, 16, 32, 64 or 80.

[skartalov]

I forgot to mention that I am not using FireWing board, but another setup with PIC24HJ128GP504 processor.
I am using MPLAB and PICKIT 3 to program.

So I still need the correct bits settings.


Thanks!

[Jerry Messina]

If you're using the internal osc, then it doesn't matter that you're not using the Firewing board... it would be setup the same.

[skartalov]

Yes, I know that. But I still need to know how exactly to adjust the PLL multiplier and dividers to achieve 80MHz, with INT OSC.

[David John Barker]

see here:

viewtopic.php?f=5&t=84

and also take a look at the device file (24HJ128GP502.bas) main sub...