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Boyce
Joined: 07 Feb 2010
Posts: 39
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| #DEVICE ADC = 10-Can not change device type this far into |
 Posted: Tue Mar 09, 2010 7:07 pm |
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Compiler PCW 4.104 Device 16F690
How is #DEVICE ADC = 10 applied?
When I put it in my code, the error
"Can not change device type this far into the code"
pops up.
What can I do to change this? Does this go in the 16F690.h file?
Thanks,
Boyce
Here is the code:
| Code: | int16 T0, T2, T3;//Leave off T1 as AN1 is the reference
int Dt1, Dt2, Dt3;
#DEVICE ADC=10 //<<<===Error shown here...
void main()
{
setup_adc(ADC_CLOCK_INTERNAL);
setup_adc_ports(sAN0|sAN2|sAN3|VSS_VREF);//AN0 is the ADC voltage reference
setup_spi(SPI_SS_DISABLED);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
setup_comparator(NC_NC_NC_NC);// This device COMP currently not supported by the PICWizard
//Setup_Oscillator parameter not selected from Intr Oscillator Config tab
for(;;)
{
set_adc_channel(0);//0 for AN0, 1 for AN1...
delay_us(10);
T0 = make8((read_adc()),0);
//REMEMBER, AN1 IS THE REFERENCE ON A 16F690
set_adc_channel(2);//0 for AN0, 1 for AN1...
delay_us(10);
T2 = make8((read_adc()),0);
output_C(T2);//Output lower 8 bits of T2
//output_C(T1-T2)
}//end for(;;)
}//end main |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Tue Mar 09, 2010 8:10 pm |
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Put all #device statements immediately after the #include line for the PIC.
That's what it means. |
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Boyce
Joined: 07 Feb 2010
Posts: 39
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| Posted: Tue Mar 09, 2010 11:43 pm |
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Or put it in the 16F690.h file were the #device adc = 8 is. Change the 8 to 10. Works.
Thanks for the suggestion.
Boyce
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LostInSpace
Joined: 09 Mar 2010
Posts: 13
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| Posted: Wed Mar 10, 2010 12:13 am |
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The downside of changing supplied .h files is that with a new compiler install you will overwrite your modifications and your code may not work as expected. Or another programmer might not get your modified .h file.
If you do this (see snippet below) it will work and be in your main .c file so that everyone will know what is happening.
// Device setup
#include <16F688.h>
#device *=16
#device adc=8
// Fuses, etc.
#FUSES WDT
.
.
.
HTH - My 2 cents worth. |
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Boyce
Joined: 07 Feb 2010
Posts: 39
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| Posted: Wed Mar 10, 2010 7:11 pm |
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Sorry, I was mistaken when I said #DEVICE ADC = 10 was in the 16F690.h file.
Actually, it is in the main.h file. The main.h file contains the following:
| Code: | #include <16F690.h>
#device adc=10
#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz for PCM/PCH) (>10mhz for PCD)
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOBROWNOUT //No brownout reset
#FUSES MCLR //Master Clear pin enabled
#FUSES NOCPD //No EE protection
#FUSES NOPUT //No Power Up Timer
#FUSES IESO //Internal External Switch Over mode enabled
#FUSES FCMEN //Fail-safe clock monitor enabled
#FUSES RESERVED //Used to set the reserved FUSE bits
#use delay(clock=20000000)
#use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8) |
I don't think PCW 4.104 will let me put #DEVICE in the main.c file at all. Been wrong before.
Boyce
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