How to use #INT_AD with PIC16F676?

[TaeHwan Sung]

hi!
How to use #INT_AD with PIC16F676?

#int_ad
adc_handler()
{
BYTe tmp;

tmp=read_adc();
}
compiler message : ERROR invalid pre-processor directive
___________________________
This message was ported from CCS's old forum
Original Post ID: 144516340

[R.J.Hamlett]

:=hi!
:=How to use #INT_AD with PIC16F676?
:=
:=#int_ad
:=adc_handler()
:={
:= BYTe tmp;
:=
:= tmp=read_adc();
:=}
:=compiler message : ERROR invalid pre-processor directive
Unfortunately, the standard setup, leaves the AD interrupt turned off in the device editor for this chip (I think they copied the file for the 630, which doesn't have the AD). If you have the windows based development enviroment, select the device editor, find the chip, and in the 'interrupts' window, turn on ADIF, at address 0C.6. Save this, and the interrupt will then be available!.
If you don't have the device editor, contact CCS, and they should be able to send you a file with this turned on, allmost immediately.
One 'fault', in the code as written, is the syntax of the 'read_adc' call. You need to use the form:
tmp=read_adc(ADC_READ_ONLY);

otherwise this call, will trigger the ADC again.
Also in the main code somewhere, you will need a similar call, with 'ADC_START_ONLY', which will start the conversion, and the interrupt will then occur when the conversion is finished.

Best Wishes
___________________________
This message was ported from CCS's old forum
Original Post ID: 144516342

[PCM programmer]

:=hi!
:=How to use #INT_AD with PIC16F676?
:=
:=#int_ad
:=adc_handler()
:={
:= BYTe tmp;
:=
:= tmp=read_adc();
:=}
:=compiler message : ERROR invalid pre-processor directive
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If your version of the compiler does not support a certain
interrupt, and if you can't get CCS to help you quickly,
then you can use the #int_default directive to fix the problem.
Example: