Config problem PIC16F886

[Darrel Taylor]

You'll need to have PBP 2.50 for this series of chips.

OSCCON = %01110001  ; Internal 8 mhz Osc
ANSEL = 0           ; All Digital
ANSELH = 0

[Bosse]

Thank you Darrel,
I have PBP 2.47 - in Microengineering labs homesite they declare that PBP 2.47 can compile F886 ???
Have used PIC16F88, but need more I/O so decided to try F886 but have real problem with config word
@ DEVICE PIC16F886, INTOSCIO,WDT_OFF,MCLR_OFF,LVP_OFF,PROTECT_OFF,BOD_ OFF,CPD_OFF,IESO_OFF,FCMEN_OFF,PWRT_OFF

So I have to update to PBP 2.50 - will do that soonest possible.

Can I compile in MPASM and then use the file?

Thanks again

[Darrel Taylor]

Oh, oops. Yes 2.47 will do.

What kind of problem are you having with the config? Looks ok to me.
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[Bosse]

Hi Darrel,

Always get a lot of messages that the config is not correct.

Now I have decided to use Crystal and will be very greatful for help with configuration word(s)

Have used a PIC16F876A before without any problem, think it can be that the F886 have 2 config words????

[Darrel Taylor]

Are you using the default PM assembler, or MPASM?

For PM, the CONFIG2 word is set using the DEVICE2 pseudo-op. But not setting config2 will not cause an error. And your DEVICE line above looks OK (if using PM).

If you are using MPASM then it would be ...

@    __config _CONFIG1, _INTOSCIO & _WDT_OFF & _MCLRE_OFF & _LVP_OFF & _CPD_OFF & _FCMEN_OFF &  _IESO_OFF

Of if you're using a crystal now, replace _INTOSCIO with _XT_OSC or _HS_OSC.

Don't forget to comment the config line in the 16F886.inc file in your PBP folder.
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[Ruben Pena]

Hi Bosse:
If you are using the port A as digital, you will need to disable too the
comparators.
CM1CON0 = 0
CM2CON0 = 0
Greetings...
Ruben de la Pena V.

[Bosse]

Thank you very much Darrel and Ruben,

I use PM assembler. Have decided to use a ceramic resonator (20 MHz)

Wants ALL DIGITAL if possible.

Will try your configuration recommendations

Thanks again

Bosse