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Hi,

Is it not because of the upper case "P"/also? Presumably (uh-oh, out rolls
the "presumably"), the compiler knows about "port_b" because it is used in
the "#use fast_IO"  but knows zippo about the "Port_b".

Dan





 (Embedded     Dale Botkin <dale@BOTKIN.ORG>@MITVMA.MIT.EDU>
 image moved   06/11/2001 13:44
 to file:
 pic21607.pcx)





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Subject:  Re: [PIC]:help using CCS C code

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You would need to use either this:

output_b(value);

or this:

#byte port_b = 6

port_b = value;

You're getting an error because the compiler does not grok "port_b",
unless you've defined it somewhere.

Dale
--
Hallo, this is Linus Torvalds and I pronounce Linux as Leennuks.
Hallo, this is Bill Gates and I pronounce 'crap' as 'Windows'.

On Tue, 6 Nov 2001, MATTHEWS, DEAN (D.) wrote:

> To all,
>
> I am trying to build the code below using a CCS C compiler without any
joy. Originally I printed out the A2D conversion using the printf and rs232
function.  Now I want to display the hex number in 'value' using 10 leds -
10bit a2d result.
>
> #device PIC16F877*16 ADC=10
> #include<16F877.h>
> #use delay(clock=20000000)
> #use fast_IO(port_b)
>
> void main (void)
> {
>    long value;
>
>    setup_adc_ports(RA0_ANALOG_RA3_REF);
>    setup_adc( ADC_CLOCK_INTERNAL );
>    set_adc_channel( 0 );
>
>    do {
>          value = Read_ADC();
>          delay_ms(100);
>          set_tris_b(0);
>             Port_b = value;
>    } while (TRUE);
> }
>
>
> I am having an error of unidentified identifier on (Port_b = value) line.
>
> Dean Matthews
>
> --
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>

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