Correct setup internal 32Mhz; OSC_32MHZ

[Torello]

Hello,

Just to share:

setup_oscillator(OSC_INTRC | OSC_32MHZ);

Will not select the PLL and set the pic into 32Mhz. Why? Because the OSC_INTR sets bit 1 of OSCCON and this selects the internal oscillator block as system clock.

The PLL only works on the internal oscillator block when:
- the primary oscillator is selected as system clock (OSCCON b1/b0=00)
- the fuses are set to INTRC or INTRC_IO
- 4Mhz or 8Mhz is selected from the oscillator block.

Thus correct CCS setup:
- #FUSES INTRC_IO or INTRC (thus making the internal block primary)
- setup_oscillator(OSC_32MHZ);
- setup_oscillator(OSC_32MHZ); -or- setup_oscillator(OSC_8MHZ | OSC_PLL_ON);

Regards,
Edwin

[PCM programmer]

You need to specify what this information applies to.
Example:

1. The compiler. Presumably PCH or PCD ?
2. The compiler version.
3. The PIC.

Remember, we are not mind-readers.

[Guest]

Sorry forgotten:

Compiler PCHW version 4.068
Pic18 series, tested on Pic18LF4620