CAn't get PLL to work on 18LF4620

[mackrackit]

Give this a shot

@ __CONFIG    _CONFIG1H, _OSC_INTIO67_1H & _FCMEN_OFF_1H & _IESO_OFF_1H
@ __CONFIG    _CONFIG2H, _WDT_ON_2H & _WDTPS_512_2H
@ __CONFIG    _CONFIG3H, _CCP2MX_PORTC_3H & _PBADEN_OFF_3H & _LPT1OSC_OFF_3H & _MCLRE_ON_3H
@ __CONFIG    _CONFIG4L,  _STVREN_ON_4L & _LVP_OFF_4L & _XINST_OFF_4L

DEFINE OSC 32

OSCCON = %01110000
OSCTUNE = %01000000

[BrianT]

Thanks Dave,
I pasted your lines of code into my program but now I get a slew of
"ERROR Overwriting previous address contents" messages. Not sure how to handle this.

Cheers
BrianT

[mackrackit]

When setting the configs in code space you need to modify the *.inc file for the chip in the PBP directory. Comment out the configs there. Or just modify the *.inc with the new configs.
http://www.picbasic.co.uk/forum/cont...o-your-Program

[BrianT]

Thanks Dave but changing the .inc file is more pain than gain.

This little project has three 18F4620. One uses IntIO2 at 4 MHz which is where I want to activate the PLL, another uses HS with a crystal at 20 MHz and the third uses XT with a crystal at 4 MHz. It is easier to just change the Config fuses on the MeLabs USB serial programmer.

Cheers
Brian

[mackrackit]

Thanks Dave but changing the .inc file is more pain than gain.

That is why I comment the *.inc and set the fuses in code space.

But did you get it working like you want?