Internal Oscillator and pull-up statements for 16f887

[Dennis]

Hi Gusse

Is this looking better ?

Not sure of the Comparator setting ??

@__config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF
 
'Ocsillator selections here
  'OSCCON = %01100001 for 4mhz, or OSCCON = %01110001for 8mhz
        OSCCON = %01110001           'Int CLK 8MHz
        ANSEL= %11111111       '$0F = disable A/D converter
        cm1con   =   1 
        option_reg = 7     'switch pull-ups ON
'END of oscillator selections
  'timer/oscillator defines 
        define osc 8        '8MHz
'END of timer/oscillator defines

[Gusse]

Hi Dennis,

I would try with following settings.

<code><font color="#008000">@__config _INTRC_OSC_NOCLKOUT &amp; _WDT_OFF &amp; _MCLRE_ON &amp; _LVP_OFF &amp; _CP_OFF

</font>OSCCON = %01110001          <font color="#000080"><i>'Int CLK 8MHz
</i></font>ANSEL = %00000000           <font color="#000080"><i>'All digital
</i></font>OPTION_REG.7 = 0            <font color="#000080"><i>'Weak pull-ups enabled

</i></font><b>DEFINE </b>OSC 8                <font color="#000080"><i>'8MHz</i></font></code>

Comparators are disabled at POR, no need to disable twice.

BR,
-Gusse-

[Dennis]

HI Gusse

MCS won't allow a compile ....
It seems to have a problem with this line

@__config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF

In particular with the first path or the line it seems ...
Here's the error
Warning [205]...Found directive in column 1.(__config)
Error [126] c:......argument out of range (not a valid config register)
:-(
Should I rather set those in the include file ?
And what about the comparator ? Haven't quite master the way to disable it , the manual mentions CMxCON...

Kind regards

Dennis

[Dennis]

Check the include file 16f887.inc
and it has this line in any way ...

@__config _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF

So I left the line out of the code since there's no need to replicate the config lines.... or am I wrong ?

Now what about the option to disable the onboard comparators ?

Kind regards

Dennis

[Gusse]

I have never included fuses to PicBasic code, always modified INC-files.
Delete line from code and check that you have following line in 16F887.INC

__config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF

Comparators are off after Power On Reset (POR), so if you haven't enabled those, then they are disabled.

BR,
-Gusse-

[Dennis]

Thank you for the guidance and help !!

I have all set in the include file now! :-)

All is working just fine :-)

Kind regards

Dennis

[Gusse]

Nice to follow your project
Good Luck!

BR,
-Gusse-

[Archangel]

I have never included fuses to PicBasic code, always modified INC-files.
Delete line from code and check that you have following line in 16F887.INC

__config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF

Comparators are off after Power On Reset (POR), so if you haven't enabled those, then they are disabled.

BR,
-Gusse-

I never Fail to include them. To include the configs in your code, open the .inc file and install a semicolon just before the default config so,

__config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF

becomes

;__config _CONFIG1, _INTRC_OSC_NOCLKOUT & _WDT_OFF & _MCLRE_ON & _LVP_OFF & _CP_OFF

save it and start including them in your code without error. This way you can quickly adjust them, if you want to change something.

[Dennis]

Hi Joe

Thanks a million for the reply and advice :-) ,much appreciated !

Kind regards
Dennis