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ADC parameter in #DEVICE directive

 
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ibg



Joined: 19 Nov 2003
Posts: 22

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ADC parameter in #DEVICE directive
PostPosted: Thu Jan 15, 2004 3:19 am     Reply with quote
I'm programming the PIC 18F452

1) If I don't specify (with ADC= X in the #DEVICE directive) the number of bits I want read_adc() return, how many bits are returned by default?

2) With the PIC 18F452, is the following instruction essential?

#DEVICE *=16 ADC=10

Thanks,

Imanol
Ttelmah
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Re: ADC parameter in #DEVICE directive
PostPosted: Thu Jan 15, 2004 8:01 am     Reply with quote
ibg wrote:
I'm programming the PIC 18F452

1) If I don't specify (with ADC= X in the #DEVICE directive) the number of bits I want read_adc() return, how many bits are returned by default?

2) With the PIC 18F452, is the following instruction essential?

#DEVICE *=16 ADC=10

Thanks,

Imanol

The 'ADC=10', is necessary of you want a 10bit return. The default is normally 8bits. The *=16, is not necessary on the 18 family chips, they permanantly will address RAM using 16bit pointers, but it costs nothing to add it...

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